Electrical scheme Audi 80 B3. Diagnosis of electrical system with their own hands

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Assistant car enthusiast repair and operation of the Audi 80 car / electrical circuits. Electrical circuit: Electrically controlled and heated mirror.

Audi is recognized as the most popular brand among used cars. The volume of annual production is about 2 million units of cars.

Disconnect the battery cable; Otherwise, a short circuit is possible. Last editing: March 10 to release over the year. Hi, I can advise to try another tidy to put and check whether it is in it at all. SAAB Electrics since

Electric car circuits Audi 80/90

Using electric hemp vehicle Helps many car owners in diagnosing and identifying malfunctions in the on-board network. Scheme of electrical equipment Audi 80 B4 allows you to significantly facilitate the procedure for searching the breakdown, therefore every car enthusiast should be dealt with such a scheme. Learn more about which systems make up the electricity and how to determine the fault, you can learn from this article.

We now turn to the question of the diagnosis of wires and the main elements of the audio network there are several ways to diagnose faulty equipment: the video below shows a detailed description of the rear-view side mirrors of the side mirrors with the description of the main nuances by the film.

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Niva, electrical equipment Audi 80 B4 and other models: Wiring diagram and diagnostics. CONTENTS 1 Electrical circuit 2 Features of electrical equipment 3 Diagnosis of electrical systems with their own hands 3. I do not know your car without repairing. Add Comment Cancel reply. Your e-mail will not be published. Timing, CSM and CFC. Engine lubrication system. Video and media device. Light and sound appliances. Heating and air conditioning system. Air supply system in the salon. Features of oil change in automatic transmission in automobiles Audi Rules for replacement of car audio instrument panel We produce a replacement of the stove radiator on Audi 80 cars and work experience per hundred:.

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Auto electrician. We read the power supply of the car. Part 1.

Among the first foreign cars at the beginning of the 80s in our country, Audi's models appeared. German Mark. Rapidly gained popularity among domestic motorists. This was also facilitated and accessible in the maintenance scheme of electrical wiring Audi 80, and the repair of suitable power units, "Living" suspension and, of course, high speed characteristics.

Reference: All generation of Audi 80 for its rounded form of body unarked in Russia "barrel". Although the manufacturer himself assigned models for the bodies of the body - B2, B3, B4, etc.

Domestic auto industry taught car enthusiasts to Spartan conditions - the "working car" was the best complete set after the purchase.

And when foreign cars began to be taken into our country, car enthusiasts opened for themselves previously unknown faces of the car:

1. It can be equipped with various power units;
2. Have various complete setwhich includes the power steering and automatic transmission;
3. Have numerous comfort features.

Power units

In our country, cars fell with impressive mileage. However, thanks to the European service, cars were in excellent condition, and the price was available.

Among the configurable models of Audi in the configuration met several power units:

1. injector gasoline class "E" (from it. Einspritzung);
2. classic carburetor Motor class "S";
3. diesel "D" (from him. Diesel);
4. turbodizel "TD" (from it. Turbodiesel);
5. diesel version of the motor with turbocharging and direct injection "TDI" (from it. Turbocharged Direct Injection).

In addition, the engines had different systems Injection:

1. the first releases established the KE-Motronic system;
2. for subsequent - Ke-Jetronic.

Reference: any of the engines had their own technical features. In particular, the conductors of the Audi 80 on diesel engines differed from gasoline versions. And among those working on gasoline, there were also differences, for example, an electronically controlled injection system was modified at each modernization.

Transmission

Of particular consideration deserve both variations of the transmission:

1. Classical mechanics;
2. Automatic transmission.

Mechanical boxes did not cause complaints from the owners. But the automatic transmission presented difficulties in service, primarily due to the presence of electronic components:

1. Sensors and wiring;
2. Electronic "brains".

Reference: ACPP on Audi 80 had protection modes - if the sensor fails, the automation translated the box into a gentle operation mode. After replacing the faulty sensor, the control unit should be restarted. And with his own hands it was impossible to do this - "brains" can be rebooted only by a hundred by the help of diagnostic equipment.

Useful options

Among the usual systems of the car there are also quite useful options that facilitate the operation of the car in our climatic zone:

1. Heated front seats;
2. Heating windshield washer nozzles;
3. On-board computer.

However, during operation, they could fail. The repair was possible and on its own, but for this we needed:

1. Original auto parts;
2. Native factory electrical equipment schemes.

And if parts could be freed in the paragraphs of the cargo, technical documentation Represented a real deficit. That is why in the 90s photos of factory instructions were not worse than scarce auto parts.

conclusions

We hope that our article will help the owners of Audi 80 in the maintenance and operation of their personal car due to the presented original schemes and video material.

On all the electrical wiring scheme of this model, the format of the demonstration of circuits on the plots is applied, on each diagram in its upper part it is the designations of the main thermal tires of the electrical equipment of the car. In order to be clear which of the tires, what functions perform, briefly describe the description:
At number 15 tire that is powered through the ignition lock only after its inclusion. Tire No. 30 is constantly under the battery voltage - this chain is the most problematic, is protected by only one fuse, albeit powerful, but still it is recommended when repairing the chain sections connected to this bus, turn off the plus terminal from the battery. Further, "Massa", almost the entire body of the car is "minus" designated in the diagrams of 31 tire and has a brown color. The remaining - 49, 53, 56 and 58 are present in the regions of the circuits of the rotary and light signaling, in the scheme of the washing of brakes, near and far Light, lamps of dimensions and backlights, respectively.
The following is a list of blocks of packed in the archive. For those who do not need to download the entire car operation manual or multimedia programs, it is possible to download schemes in the JPEG format packaged to the archive together with additions and description in the Word document format.
Download car power supply Audi 80-90 Coupe (B3) from 1986 to 1991. Archive RAR 7.3 MB.

1 cooling fan thermal switch 1 and 2 h
2. Connection index, grounding points, wire connections 1-3 h
3. Electrical equipment of the engine with multipoint injection 1-4 h
3.1. The location of elements of electrical equipment 1 and 2 h
4. Engine electrical equipment Motronic 1-4 h
5. Electronic ignition 1-5 C.
6. Power supply
7. Differential lock mechanism - QUATTRO models
8. Four-speed automatic transmission
9. System of anti-lock brakes - Models with front-wheel drive
10. Central Castle
11. Devices panel 1-6 h
12. Air conditioning system
13. Magnitol
14. Headlights of the Front Light
15. Stop signal

The use of vehicle electrical circuits helps many car owners in diagnosing and identifying malfunctions in the onboard network. Scheme of electrical equipment Audi 80 B4 allows you to significantly facilitate the procedure for searching the breakdown, therefore every car enthusiast should be dealt with such a scheme. Learn more about which systems make up the electricity and how to determine the fault, you can learn from this article.

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Electrical circuit

Features of electrical equipment

So, which systems are included in the electrical circuits of audio 100 C3, C4 and other models:

• fuel injection systems;
• ignition system;
• mounting unit in which all relays and safety elements are installed;
• electrical control system and;
• electrical windows system;
• dashboard, where main sensors and indicators appear when activating electrical equipment or malfunction of certain nodes are installed;
• optics - turn signals, stop lights, head and cabin lighting, light alarm, fog, etc.;
• cooling system, in particular, the electrical power on the fan.

As for the features characteristic of the car on-board network:

1. All devices, devices and equipment are connected by single-wire connection. Audi developers equipped the onboard network with wires that have different colors, which allows when repairing the most accurately define a plot to be replaced.
2. Minus any device is a mass. That is, this wire is connected to the mass in any case, that is, the body of the car.
3. Plus is usually made in red. It also largely facilitates the process of diagnosing a malfunction and replacing the failed section of the chain.
4. The power supply device is that when the ignition is turned on, that is, when the battery is activated, the voltage begins on the device. Therefore, if you plan to repair wiring, for this it will be necessary to turn off the battery.
5. Each electrical knot, tied with an on-board network, is equipped with a separate block with wires.

Diagnosis of electrical system with their own hands

We now turn to the question of the diagnostics of the wires and the main elements of the Audi 100 power grid. There are several ways to diagnose faulty equipment:

1. Diagnosis of fuse performance. This component is considered one of the weakest in any car. It is possible to determine the malfunction of the safety device as visually (can be seen how the fusing thread burned), or with the help of a multimeter. The second option is more accurate. If a closure occurred, the fuses, one by one, should be removed from the installation site, after which it is possible to check each installation location using the tester.
   When checking it is necessary to remember that the closure can occur immediately on several sections of the chain, so if you were able to find the element failed, this does not mean that you need to stop checking.
2. Another option is to diagnose one or another section of the chain on the closure. When all safety devices are extracted from the seats, you need to turn off the mass of the battery. To check, prepare the tester or the control light. When diagnosing a lamp you will need one of the ends of the wire to connect to the basement, and the other to the central contact.
   When checking, you need to turn the key in the lock to position 1, after which it takes turns to connect the multimeter probe or contact the lamp to the holder terminals. In the event that the lamp is not burning, this suggests that there is no closure in the power grid, and vice versa.
3. You can also always check the integrity of the wiring. When the closure is detected, it is necessary to accurately determine the cause, so carefully read the electrical system - this will determine which devices are connected to a specific area. Next, you will need to disconnect each equipment from the chain and check its integrity. If the devices themselves are in working condition, that is, the probability that the reason lies either in the wiring break, or in bad contact. When replacing wires, old cables are fully extracted from electrocups, and the new needs to be reliably in a population, it will prevent possible problems in the work of wiring in the future (the author of the video channel Kroom & Cotv).

Photo Gallery "Definition of Faults"

Possible wiring faults and ways to eliminate them

Audi Car owners 100 most often faced with such malfunctions of electrocups:

1. Fully or partially discharged battery. Such a problem may be due to both the AKB self-discharge and the destruction of it internal design. Depending on the reason, the problem is solved either by charging the battery or its replacement.
2. The failure of the fuse is the most harmless fault, solved by replacing the element failed.
3. Cliff in the chain. A more complex malfunction is usually due to an error assignment when laying wires. Remember - when the wire is replaced, in no case cannot be laid in places where they will be exposed to moving elements.
4. Oxidation of contacts on connecting connectors. It often happens that the plot of electrocopy is the fuse - also, but the equipment does not work anyway. Such a problem may be due to the oxidation of contacts on the plug or connector connector. It is possible to solve it by stripping the contact or its replacement.

Body electrical system

Just do not be afraid of numerous wires, plugs and fuses in Audi 80! You quickly refer to the fuse table and various electrical strokes in this and subsequent chapters.

Minus to "mass" Audi 80

Minus to "mass"

Power supply Current consumers is performed by means of a wire that is more or less difficult to always be connected to the battery, which you can make sure the electrical strokes in the next chapter.

The reverse chain provides electrically conductive metal elements of the body or engine. Thus, a large number of expensive copper cable saves. In most cases, for the reverse chain, a short cable segment is needed - namely where the electricity consumer is located not directly on the metal. To do this, exists - distributed throughout the body - a certain amount of so-called "mass" points.

The negative pole of the battery is also, of course, connected to the body, "weighing", as the auto electricians say. So remember - "minus to mass."

Orientation in the System 80 electrical system

Orientation in electrical system

Designations of terminals

Movement mixture of wires in the car is actually very ordered, because many details of the automotive electrical system are standard. Numbers on different parts and cable connections, as well as in electrical strokes have in all German and in some foreign cars The same meaning.

Terminal 15 receives from the ignition lock only when the ignition is turned on, and in addition to the ignition coil, the power flows and to those consumers of the current that should receive it only with the direct operation of the vehicle. Wires to terminals 15 have a black shell, sometimes with additional color stripes.

Terminal 30 is constantly powered by the positive output of the battery or, when the engine is running, from the generator. Careless handling of tools can lead to short circuit and spark formation, if not disconnecting the negative output of the battery. This wire constantly located wire has a red shell, if necessary with additional color stripes.

Terminal 49 is responsible for turning and emergency light alarms.

Terminal 53 supplies power to glass washing system.

Terminal 56 is responsible for feeding the power for the near light (yellow and yellow-black) and for long beam with white (white-black wires).

Terminal 58 is needed for parking light in front (dimensions), as well as for rear dimming lights and lighting light bulbs. The main color of the shell wire is gray, respectively with additional color stripes.

Terminal 31 is a body terminal, or "masses", with which the power consumer must be associated with the car body, so that the electrical circuit is closed. The corresponding wires are equipped with a brown shell.

Designation of electrical connectors

Separate wires are often combined into Audi 80 in large harnesses with a black shell, which makes it difficult to search for a specific wire. Help on orienting in this case can be obtained from numerous multi-contact plug connections, the number of wires in which and their exact position are specified in the electrical strokes in the next chapter.

Wires Audi 80.

The cross section of the wire is chosen depending on the value of the current consumer: the light bulb is a sufficient wire with a thickness of 0.5 mm 2, the starter needs a 15-millimeter wire. Too thin wire heats up, and the voltage drops. In this case, instead of the 12 or 9.5 V - the lighting becomes dull.

Audi 80 Plugs

Plug connections

For a long time in the statistics of the Universal Car Club of Germany (ADAC), weakened plug connections were noted as one of the most frequent causes of problems - and almost all cars.

Now Audi put it an end in the literal sense of the word: almost all plug connections are equipped with additional mechanical protection.

This defense must be overcome before disconnecting the plug. Further lists the most common types of plugs.

• The plugs of the injection system are protected by a wire bracket, which must be squeezed down.
• Many multi-contact plugs are equipped on the sides of protective retainers, which must be pressed before disconnecting the plug.
• For example, a multi-contact plugs protected by an inguffed bracket are located on the instrument combination block.

Central Quarter 80

Central switch

The central switch is located in the Audi 80 car in the waterproof casing under the windshield. It may have up to 31 fuses (one more if the car is diesel engine), Four reserve fuses and a total of eleven relays. In addition, there is also a plug connection to connect a diagnostic device.

1 - relay for fog headlights and rear overall lights, bridge, if the car is not equipped with fog lights;
2 - the cooling system fan relay (models not equipped with air conditioning), relays for the second fan of the cooling system;
3 - Fan power control unit after stopping the engine; 4 - headlight cleaning system control unit;
5 - unloading relay of X-contact.
6 - fan relays (on models with manual air conditioning), the relay of the second fan of the cooling system (on models with automatic air conditioning and some engine options);
7 - sound signal relay;
8 - relay system of alarm system (on models with mechanical KP), bridge on models not equipped with alarm system. On models equipped with ACP, this place remains empty; 9 - discontinuous engine wiper / wooing system / glasses;
10 - fuel pump relay;
11 - Relays of the first fan of the cooling system.

All wires in Audi 80 are collected in various harnesses. All of them end in the so-called central switcher, a black box located on the left behind in motor compartment In a waterproof casing. There you can place 21 fuse, ten additional fuses, four backup fuses and a number of relays.

Replacing the central commutator

If, when troubleshooting, it was found that the cable liner, the corresponding fuse or the relay do not have damage, the cause of the malfunction can be the central switch. Typical damage may be loose contacts or refusals associated with temperature. In this case, you need to replace the central switch.

1. As a spare part, you need to purchase a relevant version of the central switch.
2. Open the lid and disconnect the loops.
3. Press on the fastening brackets to the right and on the left on the plug-in element - actually the central switch and pull out the plug-in element with connected wires.
4. Switch the plugs one by one with the old on the new device.
5. Install the plug-in element into the frame.
6. Remove the shelf on the left under dashboard And to control whether all the wires were switched.

the cover of the central switcher should be closed, otherwise, during driving on the driver's feet, drafts will be held.

Additional Block Relay Audi 80

Additional relay block

Relays or control blocks for which there was no place in the central switch, are located in the relay unit under the dashboard. They become available after removing the shelf on the left under the dashboard. The location of the contact cells shows the drawing below. There are marked and additional, occurring not everywhere, adapters.

Relay and control systems Audi 80

Relays and control blocks

View under backseat Audi 80 versions sedan

The onboard electrical system includes a number of relays and control units located in the central switch or on the additional layer of the relay on the left under the dashboard or under the rear seat.

A simple switching relay is used primarily for powerful current consumers. This has the following base: if power is powered by long cable lines through the corresponding switches, then there will be voltage losses. In addition, the contacts of the switches are exposed to a large load due to the longer current. With a relay diagram, the switch is used only for a low current, while the current consumer is connected directly, but its relay.

If the switching command does not receive from the switch, but from the control unit, the picture is the same: sensitive electronic elements cannot carry out large currents without prejudice to themselves.

• Certain relays can perform additional features. Thus, the rotation pointer relay includes flashing pulses, and the relay of the radiating system of glass and wipers controls the intermittent action and work without the wiper waters after the glasses is washed.
• Control blocks are equipped with more or less complex electronic systems For certain functions, sometimes the relay is installed in them. As an example, you can call the power windows control unit or the light off control delay unit in the cabin.

Principle of the switching relay

• When the appropriate power consumer is turned on in the relay, the electrical circuit is closed from the terminal 86 (the incoming "switching current") to the terminal 85 (housing).
• Due to this, the electromagnet, overcoming the resistance of the spring, attracts a powerful contact and thus closes the electrical circuit for the "operating current".
• To prevent the voltage loss, the operating current is carried out along the shortest path directly to the terminal 30 of the relay and from there further - under the condition of closed contacts through terminal 87 to the power consumer.
• Sometimes the terminal is 87 a. It is rigidly related to the terminal 87, that is, performs the same function.

Search for switching relays

1. The terminal 30 should always be a voltage, if it comes to a relay, the consumer of which depends on the other consumer. Example: The voltage on the rear fog lamp relay is fed only if the light is enabled.
2. To check the presence of voltage to remove (push) the relay and touch the needle electrode of the check light to terminal 30 in the relay base. No voltage means gap wire.
3. Remove the relay, terminal 86 to connect with a positive pole of the battery, and the terminal 85 with the housing ("mass"). The electromagnet coil must be clearly (heard) to attract a relay contact, otherwise the relay is defective.

Help with a defective switching relay

1. Remove relays from the nest.
2. Connect terminals 30 and 87 in a relay cell with a stationery clips or a short wire pieces. Thanks to this, the corresponding consumer will receive d.C..
3. To shut down, remove this jumper, since the corresponding switch is in this case.

Unloading contact relay x Audi 80

Discharge relay contact x

In the onboard electrical system, the unloading relay of contact x (by the way, a simple switching relay) plays a significant role. Therefore, the principle of its work is described here.

The contact of the ignition lock is powered only if the ignition key is in the "Trip" position. Through this terminal, powerful current consumers are connected, such as wiper, heating rear glass or a fan, in order to start the engine with the entire "power" of the battery, went to the starter operation. Of course, not all of these consumers can receive their power through contact in the ignition lock; For this, it is too weak. Therefore, there is a relay connection between them, and the supply of nutrition is carried out through it. The contact of the ignition lock responds (along with the supply of headlights) only for switching current to the relay.

Audi Fuses 80.

Circuit breakers

Each electrical instrument in the car requires a specific set current. Accordingly, this current is determined cross section Leading to the device's device.

If the current increases in this electrical circuit, for example, due to the appearance of additional consumers or due to short circuit, this wire is overloaded. At the same time, it can be heated slightly or even start cracking, if timely not interrupted the flow of current. That is what fuses make. As it was already noted, in order for the Audi car during defect in electrocups, it turned out to be completely without food, the fuses are distributed in various electrical caps. However, the connections between the battery, the generator, the starter and the ignition lock are not protected by fuses.

Replacing fuses

1. If you need to replace one of the fuses, you can use small plastic tongs that are fixed on the cover of the central distribution device to disconnect.
2. If the new fuse immediately burns out again, it should be checked if there was no too weak fuse.
3. If the fuse was selected correctly, it is necessary to identify the connected current consumers based on the fuse table and check each of them individually. At the same time, the corresponding electrical system will also help.
4. In the doubtful case, all consumers should be disconnected and connect them one by one by one. The consumer, when connecting which the fuse burns out, is faulty.

Additional fuses

On certain versions with additional equipment Additional fuses are located on the additional unit of the central switch. These are those in the fuse table below numbers 23 - 28.

Number 22 is only on cars with a diesel engine. Also on this panel, some versions are fuses for the ignition system and injection. The red lid with the inscription "Motor-Moteur" serves as protection.

Audi Fuse Table 80

Table fuses

Electric windows, electric hatch and electrical seats adjustment are equipped with automatic fuses that are automatically turned on after troubleshooting. Safety adapters are located on the left of the additional fuse block on the left under the dashboard.

Fuses 27 and 28 are equipped with a plastic lid of red with the inscription "Motor / Moteur".

Electric circuits Audi 80

Electrical circuits

Electrical circuits Separate electrical circuits of a system next to each other, so that functional interdependence becomes more explicit and understandable. However, the passage of wires in the car on these images cannot be understood.

What you need to know about electrical schemes

Distribution

Next, you will find parts of the power supply showing always only one specific constructive group of the car. The meaning of this distribution is saving space. After all, the windshield system area concerns both a 66 kW engine and a car with a capacity of 128 kW. So choose yourself exactly the plot you are going to do at the moment.

Building

Electroschemes are divided into a plurality of chains numbered at the bottom of the circuit. Thus, based on the explanation of the electric hammer, you can easily find individual elements. The lower line denotes the "mass" of the car (that is, the metal metal), through which the electrical circuit is closed. The gray field on the top edge of the scheme shows the central switch. The designation of plug contacts is talking about where the wire is connected. Example: B15 means that this wire should be signed in a multi-contact plug on the connection in the central switch.

If some wire ends in a rectangular frame, in which the number is indicated - for example, 15 - you will find the continuation of this wire in the named electrical circuit number, in the example this chain number 15.

Colors of wires

In the colors of wires, the wires are given in the form of abbreviations. Abbreviations denote: CH - blue; K - brown; Well - yellow; z - green; cf - gray; l - lilac; cr - red; h - black; B - white.

Additionally, in conclusion, the electrons of other engines are shown, which, if necessary, should mentally integrate into the full electricity mentioned.

In conclusion, the electrocesses of additional elements of equipment, such as fog headlights, are shown.

The image shows a central switchboard from below. It is divided into cells of plug contacts, in which, respectively, inserted by one multi-contact plug and which are indicated by the letters of the Latin alphabet. Additionally, the designations of the terminals are indicated. Both of these designations can be found on the electrical stamps at the bottom of the gray field, which must represent the central switcher. According to this data, you should look for a cable in the central switch.

Audi 80 full car power grid: 2-liter 4-cylinder engine (66 kW) Audi 80

Audi 80 full car power grid: 2-liter 4-cylinder engine (66 kW)

Rechargeable battery, starter, three-phase alternating current generator, preheating intake manifold

Wire Colors: RO - CR, SW - H, RO / SW - CR / H, BL - CH, RO / WS - CR / B, SW / RO - CH / CR, SW / BL CH / C, SW / GE - h / w.

Fuel pump, injection system, MONO-MOTRONIC injection control unit

Wiring Colors: Br - K, GN / GE - Z / F, WS / GN - B / W, WS / BL - B / CR, RO - CR, BR / GR - K / WP, SW / LI C / L, Br / Li - K / L, BL / BR - CH / K, GN - Z, BR / RO - K / CR, BL / GN - C / W, GN / RO - / CR, GN / SW - s / h , GN / GR - s / cf, GN / BL - s / C, SW / WS - h / b.

Lambda probe heated, electromagnetic tank valve with activated carbon, throttle position regulator

Wire Colors: Br - K, BR / GE - K / F, BL / SW - CH / H, GN / SW - C / H, SW - H, GR / SW CP / H, RO / GE - CR / F, GR / WS WS CP / B, SW / RO - CH / CR, GE - F, BR / SW - K / H, SW / BL - CH / CH, LI / SW - L / H, LI - L, RO / SW kr / h

BUT - accumulator battery
In - starter
C - three-phase alternator
C 1 - voltage regulator
J81 - Relay pre-heating of the exhaust manifold ("Hedgehog")
L51 - heating resistor of the heating of the exhaust manifold ("Hedgehog")
T1 - one-contact plug connection at the front wall on the right
T 1P - single-contact plug connection of the graduate manifold
T 1Q - one-contact plug connection to the left behind the instrument panel
(6) - Flexible Jumper, Engine - Generator
(11) - Massive point at the rechargeable battery nest
G 6 - Fuel Pump
G 42 - intake air temperature sensor
G 62 - Cooling fluid temperature sensor
G 69 - throttle potentiometer
J 17 - Fuel pump relay

L 30 - injection nozzle of the first cylinder
T 2x - 2-pin black plug connection in airtight casing near the plate with a relay (plug connection for diagnostic devices)
T 2Y - 2-pin plug connection in blue near the plate with a relay (plug connection for diagnostic devices)
T 2Z - 2-pin plug connection of white color near the plate with a relay (plug connection for diagnostic devices)
T 4F - 4-fold brown plug connection, left in engine compartment
T 10 - Decte-Tinct Plug Connection Black, Plug Station in the Relay Additional Block
(17 - Mass point on the intake manifold
(50) - Massive point on the left in the luggage compartment
(83) - connection to "mass" (housing) - 1 - in the electrical circuit ahead of the right
(D 8) - compound (temperature sensor / potentiometer) in the electrical circuit in front of the right
* - resistive wiring 3 ohms
K - distributor of electrical caps for the diagnostic plug (K-electriable)
L - distributor of electrical caps for the diagnostic plug (L-electriable)

G 39 - Lambda Probe
J 257 - MONO-MOTRONIC injection control unit
L 80 - electromagnetic valve of a tank 1 with activated carbon (pulse)
S 25 - Separate fuse for heating lambda probe (in the additional compartment for fuses)
S 27 - Separate fuse for the Mono-Motronic injection system and ignition coils (in the additional compartment for fuses)
T 1A - one-contact plug connection on the right in the engine compartment
T 2X - two-contact plug connection of black in a waterproof casing near the plate with a relay (diagnostic plug)
T 5 - five-pin plug connection of black color, plug block in the additional relay unit
V 60 - throttle position controller
Z 19 - heated lambda probe
(17) - Massive point on the graduate manifold
(83) - connection to "mass" (body) - 1 -, in the electrical circuit to come to the right
(84) - connection to "mass", engine housing, in the electrical circuit to come to the right

Hall sensor, high voltage transformer, ignition distributor, Ignition Candles Audi 80

Hall sensor, high voltage transformer, ignition distributor, Ignition Candles Audi 80

Hall sensor, high voltage transformer, ignition distributor, ignition candles

Ignition switch and starter, contact discount relay, Damping of the Audi Fuel Tank 80

Ignition and starter switch, contact reflux x, damping fuel tank

Fan for coolant, thermal switch for Audi Fan 80

Fan for coolant, thermal switch for fan

Headlights, parking light, rear dimming lights, braking signal, backstage headlight 80

Lighting Switches, Middle Light Headlight Switches, Light Light Light Headlight and Parking Light Audi 80

Lighting switches, pale light switches, light signal Far Light Headlights and Parking Light

Lighting of the discharge box, luggage compartment lighting, license plate lighting, Audi 80 engine compartment lighting

Loading Box, Lighting of the Luggage Compartment, Loading Lighting, Motor Compartment Lighting

The system of flashing turning pointers and emergency light alarm 80

The system of flashing turning pointers and emergency light alarm

Wiper / Washed System, Headlight Purification System Heated Water Resistant, Audio Sound 80

Wiper / Washed System, Headlight Purification System Heated Fiberglass Nozzles, Beep

Combination of devices, tachometer, digital clock, audio lighting regulator 80

Combination of devices, tachometer, digital clock, lighting control

Combination of devices, voltage stabilizer, coolant control, fuel number indicator, audiometer Audi 80

Combination of devices, voltage stabilizer, coolant control, fuel number indicator, speedometer

Combination of appliances, mini-check-system system (mini-check-system), oil pressure monitoring, Audi 80 coolant control

Combination of instruments, mini-check-check-system system, oil pressure control, coolant control

Fog lights, fog taillights, parking light control Audi 80

Salon ventilation system, audience cigarette lighter 80

Salon ventilation system, cigarette lighter

Door Lighting Switch, Salon Lighting, Cosmetic Audi 80 Mirror

Lighting door switch, interior lighting, cosmetic mirror

Rear window heating, Radio Audi 80

Heating rear window, radio

2-liter 4-cylinder engine (85 kW) Audi 80

2-liter 4-cylinder engine (85 kW)

Electronic injection system, lambda regulation, detonation regulation

Electronic injection system, fuel pump relay, Audi 80 fuel pump

Electronic injection system, fuel pump relay, fuel pump

Wiring Colors: Br / SW - K / H, Br - K, BR / RO - K / KR, GL / RO - / CR, GL / GE - S / W, GE / WS - R / B, LI - L , GL / SW - s / h, GL / GR - s / c, WS / BL - B / CH, GL / BL - S / C, RO / SW - CR / h, RO / BL - KR / CH.

System of locks with central control, interior lighting with a delay of disconnection and backlight of cosmetic mirrors Audi 80

System of locks with central control, interior lighting with a delay of shutdown and backlight of cosmetic mirrors

Wire Colors: Br - K, BR / WS - K / B, Br / GE - K / F, GL / BL - S / C / BL, GE / BL - W / SH, RO / SW - CR / H

Audi 80 power windows

Power windows

Wiring Colors: Br - K, BR / GE - K / F, BL - CH, SW / RO - CH / CR, GE / BL - w / C, RO / SW - CR / H, RO / BL - CR / CH , GE / br - w / k, Br / Ws - K / B, RO - CR, SW / BL- CH / CH.

Wiring Colors: Br - K, SW - H, SW / GL - h / s, GE / SW - w / h, Br / ro - K / KR, GE - F, GL / GE - s / f, SW / WS - C / B, WS - B, RO / BL - KR / CH.

Audi Accumulator Battery 80

Accumulator battery

The battery is an Audi 80 onboard electrical system center. Various power consumers use the reserve of energy, and the battery is charged from the generator.

Principle of operation

The electrode (lead plate) is in contact with diluted with sulfuric acid (electrolyte) and gives positive ions under the action, that is, electrically charged frequencies, electrolyte. Thus, electrical voltage is created between the electrolyte and lead plate.

However, the voltages created as a result of the "voluntary" transition of charged particles is not enough, and a charging voltage is supplied to the battery. As a result, the lead sulfate of the discharged battery is converted to a positive electrode into lead dioxide, and on a negative - in sponge lead. At the same time, sulfuric acid is again formed in the electrolyte, the external feature of the almost completed charging process is the appearance of gas bubbles.

When the battery is discharged, the reverse process goes. The lead dioxide of the positive plate and the sponge lead is negative again turn into lead sulphate, and the sulfuric acid is consumed, and water is formed. Therefore, the acid density decreases with the discharge of the battery.

Rechargeable battery designation

In AUDI 80 models with 4- and 5-cylinder engines, the battery is located at the right in the engine compartment. In models with a 6-cylinder engine: the battery is located on the left in front of the engine compartment. In places of installation, it is protected by a lid.
The following batteries are installed on the AUDI 80:

• 12 V / 40 AC, typical number 54045 (all 4-cylinder engines)
• 12 V / 63 AC, typical number 56318 (5- and 6-cylinder engines)

Battery Parameters

Voltage and capacity: in the designation 12 V / 40 Ach the first number (12 V), of course, indicates the voltage. Behind the inclined feature shows the strength of the current that the battery is able to give per unit of time - Ach means amper clock. This is the rated battery capacity, measured according to regulatory conditions. In practice, only 2/3 of these amps hours should be calculated; With an older battery only half.

Cold scrolling current: The number 220 A or 300 A indicates the current strength that the battery can give at a temperature of minus 18 ° C.

Typical number:the five-digit number serves all German battery manufacturers to identify the battery. For Audi, the corresponding numbers are 54045 or 56318. The first number (5) means the battery voltage of 12 V. The following then the numbers 40 or 63 indicate the battery capacity. Both the last figures indicate constructive signs, such as a model, pole, hose for removal of gases and flaming.

How long is the reserves? Audi 80.

How long is the reserves?

How long can the power consumer function function due to the current from the battery, can be calculated according to the following formula:

Operating time \u003d Battery capacity multiplied by the on-board network voltage and divided into power consumer. In practice, you, however, should never count on the full capacity of the battery, and only from 1/2 to 2/3 of the nominal container. At the same time, it turns out, for example, the following deadlines:

Effect of ambient air temperature on battery

Batteries have a property to react to cooling, the more negatively, the smaller they are charged. Completely discharged batteries are so sensitive that in the frost can even freeze and burst. If the battery, on the contrary, is charged to failure, it transfers the cold relatively well. Before the onset of cold season is recommended, therefore, on old batteries to monitor the degree of discharge.

Control of the level of electrolyte Audi 80

onrop the level of electrolyte

The liquid in the battery consists of sulfuric acid, diluted with distilled water. Some part of this water can evaporate or break in the process of charging for hydrogen and oxygen.

IN audi cars 80 is installed so that does not require maintenance battery, corresponding to the standard DIL 72311 and having a relatively large supply of water. Under normal conditions, it must have the entire service life to do without topping the new distilled water. Increased water consumption causes only an increased ambient temperature, long stay in the hot regions (vacation), a faulty voltage regulator of the generator, self-discharge with long Parking A car or a deep discharge caused by, for example, included all night of parking headlights.

1. The electrolyte in the battery must reach at least the lower mark on the housing applied by varnishing or extruded, but at least to close the top edges of the plates well.
2. With a reduced level of fluid, unscrew the plug.
3. If the battery is charged normally, you should add distilled water to the upper mark or 15 mm above the upper edges of the plates.
4. If the battery is strongly discharged, then add only so much water so that the plates are covered on top, because when re-charging the fluid level will increase significantly.
5. Add to top mark only after charging.
6. The amount of water from the bulk bottle should be well dosed because the battery is easy to overflow.
7. The crowded battery "boils", the acid protrudes at traffic jam.

Removing the battery

1. Disable the anti-theft system and radio code so that they can be turned on again after connecting the battery.
2. Models with 4- and 5-cylinder engines: remove the battery cover after weakening both fastening clamps on the right and left, or high-speed constipation.
3. Models with 6-cylinder engines: To remove the protection of the battery, depart the plastic fasteners at the bottom, one towards the engine and one towards the wing.
4. The first must be disconnected by the negative wire to prevent short circuit when working with the battery.
5. Loosen the nut on the terminal of the negative wire, disconnect the terminal from negative output.
6. Loosen and remove the closure terminal.
7. Remove the fastener bolts at the bottom of the battery, remove the bolts and bar.
8. Disconnect the plastic hose from the central gas feed.
9. Remove the battery.
10. When installing, first connect positive, then negative wires.
11. Without an application of force, it is almost impossible to confuse the wire terminals, because the positive conclusion is thicker with a negative.
12. Turn on the alarm and radio again.

Battery Popper Care

1. Crystals on battery terminals wash with warm water with soda or process "Leutralol" from Varta.
2. Lubricate the conclusions and terminals of the acid-protective wire plastic lubricant ("Ft 40v1" from Bosch).
3. On the sides of the conclusions and inside It is impossible to apply lubrication terminals, otherwise problems with contacts are possible.

Checking Accumulator Audi 80

Checking battery charging

1. If the battery seems "powerless" despite right level Electrolyte, should check the degree of discharge. To do this, it is necessary to find out the proportion of battery acid. To control you need an areaometer.
2. Remove the recharge battery cork.
3. It is so many electrolyte with a carometer so that the range of (spindle) floats freely in it.
4. 1.28 kg / l - battery fully charged; 1.20 kg / l - charged half; 1.12 kg / l - discharged.

Battery charging Audi 80

Accumulator charging

Connecting a battery charging device

• Connect the positive wire to the positive output of the battery, negative - to the negative.
• When charging the battery can stay in the car.
• Battery wires with a weak charging device not necessarily.
• Battery cork can remain installed. The gas formed during charging can go through the ventilation holes in the traffic jam.
• The charging current must for the beginning of approximately 10% of the battery capacity (for example, 4 A with a battery with a capacity of 40 Ah) and automatically decrease during the charge process.
• The battery fully charged if the acid density is not rising within two hours.
• When charging the battery, the distilled water partially disintegrates. Gas bubbles are formed from hydrogen and oxygen - highly discontinued rat gas.
• Therefore, it is necessary to ensure good air ventilation, especially if the high current is charging.
• When charging the battery, it is impossible to smoke near or apply an open fire.
• Hardening gas can ignore from the spark when installing or disconnected charger either battery wires

Running the engine with a discharged Audi 80 battery

Running the engine with a discharged battery

The method of starting the car by pushing or towing can be dangerous if the car does not start due to the malfunction of the ignition system. In this case, the unlawful mixture may flash and raise the temperature in the catalytic converter to dangerous values. In case the engine does not start only due to the discharged battery, such things are not dangerous.

Starting the engine with the help of another battery ("Cursting")

1. Take a car with a charged battery so close so that it can be convenient to pave the wire to connect its battery to the battery.
2. Check if all power consumers are turned off in your de-energized car.
3. The first wire connect the positive conclusions of both batteries.
4. Another wire must first be connected to the negative output of a charged auxiliary battery, and then in the engine compartment of a de-energized car to a bare body (for example, directly to the engine).
5. Turn the engine of the auxiliary car and make it work on high revs so that the generator gives an increased voltage.
6. If the engine did not start immediately, take a break to cool the starter. Auxiliary engine Leave to work further, thanks to which the discharged battery is slightly charged.
7. When the auxiliary wires are disconnected, first disconnect the terminal from the negative output of the charged auxiliary battery.

Running the engine pushing

With two helpers, you can easily push the Audi from the scene.

1. Enable ignition.
2. Turn on the first transmission, at higher transmissions, the generator is too slowly rotated and will not provide a powerful current supply.
3. Squeeze the clutch, assistants should push the car.
4. If he came into motion, let go of the clutch.
5. As soon as the engine started, immediately squeeze the grip and add "gas".

Running engine towing

For towing it is better to choose an assistant who has experienced in this matter, otherwise an accident is possible. And remember: when disabled Engine The steering amplifier and the brake amplifier also do not work.

1. Turn on the ignition, turn on the second transmission and squeeze the clutch.
2. The front car must slowly touch the place.
3. At a speed of about 15 km / h, slowly start letting the clutch, putting the right hand on the parking brake lever.
4. If the engine started, squeeze the grip and click on the "gas".
5. Tighten the parking brake lever so that you do not hit the front car.
6. Side the driver of the front car.
7. Put the shift handle to the neutral position, release the clutch.
8. Mildly slow down the parking brake with a towing car.

Audi Generator 80.

Generator

Bosch Generator (Old Version), Rear View

Since Audi 80 cannot drag the extension cable, the production of electricity should occur directly in the car. This task is performed by the generator. And not only for lighting, as it was once, but also for all electrical systems in Audi.

Three-phase alternator

Power

In about December 1991, some versions of the Audi 80 were equipped with a 65-ampered generator, now only 90-ampered generators are installed. In special versions, 110 ampere or 120-ampered generators can be standing. To calculate the power of the generator, the specified maximum current strength is multiplied to the rated voltage in 14 V. It turns out, for example, 90 A x 14 V \u003d 1260 W. You have already noticed: the generator in a 12-volt onboard network in reality gives 14 V. Because the battery can act for charge only due to this small difference in voltage.

Transfer from Shkiva crankshaft the generator pulley is chosen, by the way, so that idling Approximately 2/3 of the generator power were performed.

Generator and safety maintenance

The three-phase alternator is different enough high power And produces a current even at idle engine speeds. Its moving graphite contacts (brushes) withstand more than 80,000 km. According to its name, it produces an alternating current, which is not used in the car, since the battery can only be charged with a constant current. Therefore, rectifying diodes are built into the generator, converting an alternating current into a pulsating constant current. Since these diodes are sensitive to high voltage, you should remember next:

• When the generator is running, it is impossible to loosen nor connect the wires between the battery and the generator. Because of this, the voltage jump (voltage peaks) can occur, which will damage the diode.
• The three-phase alternator of the AC should not work in the absence of a properly connected, serviceable battery, because the battery serves a kind of overvoltage buffer.
• All cable connections between the three-phase alternator of the AC, the battery and the body of the body or force aggregate ("Mass", Corps) should sit firmly. Even loose contact can lead to dangerous voltage peaks.
• With a quick charge of the battery (not to apply when charging using automatic shutdown devices) and with electrical welded works on the body from the battery, both wires must be disconnected so that the generator diodes are not damaged.

Audi 80 Battery Charging Indicator

Battery charging indicator

• The indicator in the instrument combination is equipped with two positive conclusions, namely by one side of the terminal D + generator (blue wire) and the other from the terminal 15 through a blue multi-contact plug connection, suitable to the device from behind the ignition lock (black and blue wire).
• When the ignition is turned on, voltage arrives on the terminal 15. The generator, however, does not work yet, and therefore the D +Contact does not work without meals act as "minus". The indicator flashes, because between the on-board network receiving power from the battery, and the non-working generator has a potential difference.
• If the engine is running and the generator has reached the number of revolutions required for charge, the voltage regulator connects it to the on-board network. Now the power comes from terminals 15 and additionally from the D + terminal. When the potential differences do not exist, the charge indicator goes out.
• When you turn on the ignition, the burning indicator of the charge must "prevent" the generator. Only in this case the generator will be able to produce current already on low revs. However, the prevention is necessary only when the generator is first started.

Recharging is not always

Even if the charge indicator does not burn, it does not mean that the battery is really charging. This speaks only that there is no longer a potential difference between the battery and the generator. If on idling The engine is enabled, for example, all current consumers, the charge indicator does not burn, although there is more current from the battery than the low-power generator can be checked: but nevertheless, the voltage difference with the battery does not exist.

Audi 80 voltage regulator

Voltage regulator

The generator in the car can be compared with Dynamo by bike: the faster the rotation, the higher the voltage and, thereby produced by the current. Automotive power consumers could not withstand such fluctuations for a long time, and therefore a special knob should limit the generator voltage and prevent the rechargeable battery. This regulator, electronic voltage control, is installed directly on the generator.

DIY repair of the generator and regulator Audi 80

DIY repair of the generator and regulator

Usually the generator does not require repair, except for the changes in the generator brushes. More serious damage cannot be eliminated by domestic products.

Check voltage charging

1. Attach a voltage between the terminal of the thick red wire of the generator and the "mass".
2. Leave the engine to work on medium turnover.
3. If the voltage regulator is working, the voltmeter should show 13.3 to 14.6 V.
4. If it is not so, check the brushes or replace the regulator.
5. Otherwise, the generator itself is defective.

Checking brushes

1. Disconnect the negative battery terminal.
2. Bosch Generators: Remove the cover on the rear battery (where there is).
3. Disconnect the controller from the generator. To do this, turn out two screws.
4. Throw back the regulator in order not to have arrived in the coal brushes holders.
5. Measure the protrusion brushes.
6. Length of new brushes 13 mm; Minimum length 5 mm.
7. VALEO Generators: Remove both knitting screws on the back of the generator.
8. Pull the regulator.
9. Measure the length of the protruding brushes.
10. If the residual length was 5 mm - brushes are worn.
11. VALEO generators brushes cannot be purchased separately; It is necessary to change the entire regulator.

Replacing brushes

Replacing the brushes on the regulators of a new generation of Bosch generators is now impossible - so coal brushes are no longer sold as spare parts. If they wear out, the entire regulator should be changed. The same can be said about the VALEO generator; Coal brushes are not sold as a spare part - it is necessary to buy a new voltage regulator if the brushes are worn.

However, the Generators of the Bosch of the Old Generation is possible such a replacement. This will require a soldering iron, solder and, moreover, knowledge in soldering.

1. Remove the voltage regulator according to the scheme described above.
2. Play multi-wire flexible wires, pull out coal brushes.
3. Remove push springs from old brushes and put on new ones.
4. Separate multi-proper flexible wires.
5. At the same time, it is a little tin and work quickly, so that the wires do not get a lot of tin. Otherwise, they will become hard.

if brushes are removed, you can simultaneously check the copper contact rings (brushes go on it). If there are deep traces of work on them, then you need to sharpen them in the workshop on an autoelectric and polish them.

Removing the generator

1. Models with 4-cylinder engines: remove the cover (where there is a hinged bolt in front of the casing belt.
2. Models with 5-cylinder engines: remove the lower protection of the engine compartment.
3. Models with 4- and 5-cylinder engines: Disconnect the wires from the generator.
4. Disconnect the cable to the "mass" where there is.
5. Remove the clamping bolt on the generator adjustment bar.
6. Weaken and remove the wedge or polyclinic belt
7. Loosen and remove the hinge bolt holding the generator at the same time.
8. Models with 6-cylinder engines: remove the lower protection of the engine compartment.
9. Remove the wedge belt (the description of the work below in this chapter).
10. Remove the connecting wire and the coolant guide stream.
11. Loosen the fastening bolts, remove the generator.

Movement with a faulty generator

if the generator or voltage controller does not work, then you can still continue the trip, since the role of the power supply can take on the battery. The day of its reserve is enough for a long time, because electronic control Ignition / injection, as well as the electrical fuel pump, the minimum voltage is required. In addition, the battery is often charged only on 2/3. Depending on the battery capacity, you can travel at least 5 hours. In winter, the overall weakness of the battery is a complicating circumstance. In addition, it is necessary to turn on the headlights before.

Therefore, the motto should be the current saving: no need to interrupt the trip, because the starter needs a lot of current. If possible, it is necessary to start "from the wrong". Do not include the heated rear window, stove and radio. Economy to handle the wiper. At night, moving without far light and fog headlights. Additionally, disconnect the cables from the generator and insulate separately, so that the battery can not be discharged through a faulty generator or voltage regulator.

Verification of the state of a wedge or polyline belt Audi 80

Checking the state of a wedge or polyline belt

1. To control the belt, turn the engine several times.
2. Only this way you can see really all the belt surfaces. Often, the belt is one-only, but deep gap, which when control can be exactly on the pulley.

5-cylinder

pump hydroSiller

5-cylinder

air conditioning compressor

If a new wedge belt is installed, it is necessary to check its tension in about 100 km and, if necessary, do it; New belts at first stretch stronger.

Polycline belt tension

• Polycline belt 4-cylinder engine model released after September 91g., Upon control, you will have to pull again. So you need to weaken the belt and set the tension according to the scheme described in the next paragraph.
• The 6-cylinder engine belt always has the right tension due to the automatic tension device.

Tension of a wedge or polyclinic belt Audi 80

Tension of a wedge or polyclinic belt

Tension of a 4-cylinder engine vapor

Wedge belt generator

Wedge Rubber Steering Pump Belt

Crankshaft pulley parts for models with 4-cylinder engine and air conditioning

Models with 4-cylinder engines

1. The generator bladed belt until September 91: weaken the clamping bolt on the generator adjustment bar.
2. Rotate the adjusting nut with a gear crown below until the correct belt tension is established.
3. Tighten the clamping bolt.
4. If the generator cannot be shifted, it means that its hinge bolt should be loosen.
5. It becomes available in front after removing the cog belt.
6. If the hinge bolt has been loosened, it is necessary to delay it in the very least.
7. A wedge belt of the generator after October 91 g .: Loosen the clamping bolt on the generator fastening bracket.
8. Loosen the hinge bolt at the bottom of the generator, check the minority.
9. Tighten the torque of 6 minutes and keep the adjusting nut with a gear crown with a cape 22 mm with a dynamometric head. So the belt tension will be true.
10. Tighten the clamp bolt.
11. Last but again, tighten the hinge bolt again.
12. Wedge belt for water pump and power steering pump: remove the lower protection of the engine compartment.
13. Loosen the clamping bolt on the steering power steering pump fastening bar.
14. Rotate the adjusting nut with a gear crown below until the correct belt tension is established.
15. Tighten the clamping bolt.
16. If the waterproof pump can not be shifted, it means that its hinge bolt should be loosen.
17. The air conditioner compressor bladed belt: adjustment of the belt tension occurs by removing or adding adjusting washers between the front and rear half pulleys. More adjusting washers between pulley halves means less belt tension. A smaller amount of adjusting washers between the halves of the pulley leads to a larger belt tension.
18. Excess adjusting washers should be put between the hub and the front of the pulley.
19. Tighten the nuts with the torque of 25 minutes, after this, while the wedge belt does not jin between the halves of the pulley.
20. Turn the crankshaft twice.
21. Check the belt tension is strong by pressing the thumb at the free place between the crankshaft and the air conditioner compressor.
22. Turn the engine and give it a little work.
23. To check the tension of the wedge belt again, if necessary, add or remove the adjusting washers.
24. With the right belt tension, tighten the bolts again by a point of 25 minutes.

Models with 5-cylinder engines

Tension of the 5-cylinder vehicle vapor

Wedge belt generator

Wedge wedge of the pump of the hydraulic pot.

1. The generator bladed belt: weaken the clamping bolt on the fastening rail.
2. Turn the adjusting nut with a gear crown below until the faithful belt tension is established.
3. Tighten the clamping bolt.
4. If the generator cannot be rotated, you should relax a hinge bolt slightly (the lower fastening of the generator) with the bottom protected of the engine compartment.
5. Wedge Rutter Hydraulic Pump Belt: Loosen the fastening nuts on the fastening rail and swivel rail.
6. To tension the belt, turn the tensioning bolt to the left, that is, turned out.
7. Tighten the nuts again.
8. The air conditioner compressor bladed belt: weaken the clamping bolts in front and rear on the air conditioner compressor bracket.
9. Air conditioning compressor bracket along with a compressor to take to right side car. If necessary, use the lever from the bottom.
10. If the belt tension is correct, tighten the clamping bolts again.

Models with 6-cylinder engines

Tension of the polyclinic belt at the model with a 6-cylinder engine. In the figure, the tension roller is recorded using a hexagonant, which makes it possible to turn it with a precipitant key. A star bolt is visible in the photo, which the star head with a suitable cape key (2) is wonted. Pin (1; On the illustration, the dispersion is performed on the illustration) is inserted into the hole provided for this on the tensioning device, so that the tensioning device is fixed in this position.

• Polyclinic belt tension is provided tensioner rollerloaded with spring power. Regulation is not required.
• If the spring is broken, the belt freely saves over the pulleys. In this case, replace the tensioner.

Torn Audi 80 wedge belt 80

Torn by wedge belt

While the polyclinic belt, strictly speaking, must serve the entire life of the car, the wedge belt may well and break.

If the belt is torn, one of three effects is manifested:

• Red charge indicator flashes during a trip.
• The steering is suddenly becoming heavier.
• Air conditioning does not work.
• The engine overheats, because the water pump does not affect. This is the most dangerous effect, because it is manifested later than others.

Overheating of the engine due to damage to the audio belt 80

Overheating of the engine due to damage to the wedge belt

If the models with a 4-cylinder engine breaks up a wedge belt of the pump hydraulic power steering, then the water pump drive is also interrupted and the engine overheats. Because of this, the sealing gasket of the head of the cylinder head is irreversibly damaged, and at worst even the entire head of the cylinder block - with respectively high accounts for the repair.

• Therefore: if steering At models with a 4-cylinder engine, during the trip, it suddenly becomes slightly for the time, it should be immediately stopped and checking the health of a wedge belt above the pulleys of the water pump and the hydraulic pot pump. If concerns were confirmed: call the tow truck!
• If the trouble happened to other wedge belts, then it is not so tragic. In this case, you are traveling either without steering amplifier (only models with 5-cylinder engines), or without a generator, or with non-working air conditioning to the nearest workshop.
The generator (PCR) in the figure shows the passage of the polyclinic belt at the model not equipped with air conditioning.

1. In no case cannot be "drained" to the pulleys in any case with a screwdriver, because cuts arising, so to speak, predetermine the next belt break.
2. Loosen the old replacement belt.
3. Now you can safely remove it from the pulleys, and new belt You can comfortably put on them.
4. Please note: if necessary, you will have to remove other wedge straps, or you will need to disconnect the front engine support.
5. In conclusion, stretch the belts, drive about a hundred kilometers and then descend.
6. Which wedge belt is where to put in the Audi 80, you will learn from the table at the top.

Replacing a polyclinic strap on models with a 6-cylinder engine

1. Remove the housing of the polyclinic belt.
2. Install the 15-mm precipitant key on the test device hexagon and take it to the right (sometimes the bolts with the starley head are installed).
3. Insert a pin (for example, a suitable bolt, etc.) in the hole provided for this and thereby fix the tensioning device.
4. Mark the direction of rotation of the belt with chalk or felt-tip pen.
5. Remove the polyclinic belt.
6. When installing, put the polyclinic belt first on the drive and guide rollers; Lastly on the tensioning roller.
7. Raise the tensioning device again and remove the pin.
8. Install the casing.

Starter Audi 80.

Starter on the right side of the engine is difficult to access (the 4-cylinder engine is shown in the illustration)

The illustration shows the starter (5-cylinder engine) in disassembled form

Engine starting

1. When turning the ignition key to the "Start" position, the power is powered by a terminal 50 of the retractor relay located on top at the starter.
2. At the same time, the inclusion lever introduces the gear of the starter on spiral coils into engagement with the engine flywheel gear.
3. Only after the complete gear gears, the retractor relay includes a fully coming from the terminal 30 batteries, and then the starter scrolls the engine.
4. The engine starter and gear are interconnected through a gearbox. Therefore, the electric motor rotates much faster than the gear.
5. When the engine is started - the gear again comes out of the engagement with the flywheel.

Removing starter

1. Disconnect the "masses" wire from the battery, otherwise the risk of a short circuit is large.
2. Remove the lower protection of the engine compartment
3. Raise the car in front of the right and fix.
4. Remove all wires from the retractor relay.
5. Remove the starter mount in front of the movement (where it is where it is).
6. Remove the fastening bolts or nuts on the starter fastening flange (that is, behind the movement direction).
7. Remove the starter.

Replacing brushes

If the starter does not work, then it may be all the case in the wear of his brushes. Coal brushes can only be purchased complete with a mounting plate. Since the starter housing after opening needs to be sealed, then in the store of spare parts you will need and sealant D 3. Next for models with a 4-cylinder engine, a powerful soldering iron and solder will be required.

1. Remove the starter.
2. On the closed side of the starter, turn out two screws with a slot in the head that fastening the small bearing cover, remove the cover.
3. Remove the lock washer and the adjusting washer with the shaft under the lid.
4. Remove both screws (or nuts with studs) from the back cover of the housing and remove the lid.
5. Measure the length of the brushes - the minimum length is 8 mm.
6. To replace the brushes, disconnect the mounting plate from the retractor relay.
7. Again to collect the starter, while sealing the housing cover, fastening screws and the bearing lid.

Removing the retractor relay

1. Remove the starter.
2. Disconnect the wire from the starter.
3. Unscrew the three screws on the fastening flange of the retractor relay.
4. A little squeeze the retractor relay and remove the eye from the starter switching lever.