GUR or EUR on the prior: all for and against. EUR and GUR Priors: a list of possible faults and ways to repair from which the GUR system consists and how it works

The hydro and electric power steering is designed to facilitate the effort that the driver attaches when the steering wheel is rotated. EUR is a more advanced mechanism compared to GUR, since it uses an electrical drive. The system does not have oil and other hydraulics components, which increases its reliability. Usually, AvtoVAZ engineers are installed on EUR passenger cars, less common - GUR. In both types of power steering enhancer.

Steering Scheme

Device and principle of operation of the steering mechanism Priors

On the front-wheel drive vehicles, due to their design features, it is impossible to establish a classic steering mechanism. The first thing engineers face are lack of space. The standard mechanism can not be delivered, even if instead of the internal location of the engine uses transverse. For this reason, a compact steering rack came to replace the classic, which transmits an effort when turning the steering wheel to the front wheels.

To save places as much as possible, on the prior and many other rail cars toughly fastened on the front panel of the engine compartment - between the engine and the interior. It connects with a steering column that goes into the cabin and ends with a steering wheel. The steering rail is a toothed metal rod. Its teeth are engaged with a steering wheel drive in the form of a shaft. They are located relative to each other at right angles. This is an improved worm type drive.

The driver rotates the steering wheel along with the shaft, the teeth of which move the steering rack inside the casing, engaging for the toothed rod. In the rail casing there are holes through which the steering tips (thrust) are connected. In the center of the racket itself there are holes for fastening these tips, which are attached to the turning fists of the front wheels through the riveted fists.

Design and features of operation of the GUR and EUR

To facilitate the rotation of the steering wheel and the improvement of comfort can be used either hydro-or electric powerlifier. Both amplifiers have both pros and cons.

Structurally Gur is a system of high and low pressure hoses, in which oil drives into motion using pumps. The hydraulic fluid fluid must be poured into the tank near the pump. It works only when the engine is running. The driver turns the steering wheel, and at this time the fluid through the pressure distributor created by the pump enters the steering mechanism. It enters the working cylinder, presses on the piston, which begins to shift, and facilitates the rotation of the steering wheel. With rectilinear movement, the fluid recesses back to the tank of the system.

Scheme GUR.

Advantages and disadvantages of GUR

In the case of the hydraulic cylinder, the main minus is the bulky of the entire system. But it is cheaper in production and maintenance, and this affects the price of the car. At the moment, the GUR meets mainly on the budget class machines, to which the prior applies. A amplifier of this type is also set on expensive powerful SUVs. This is explained by the fact that the GUR is capable of transmitting a greater power of transmitting torque on the steering. In this regard, he wins the electric powerful, but the shortcomings still numbered more:

1. In a car equipped with a waterwater, it is not recommended to keep the steering wheel in the extreme right or left position for more than 5 seconds. Otherwise, the oil in the GUR on the prior begins to heat up, which can lead to the system failure.
2. The mechanism requires constant control of the oil level, inspection and replacement of drives, hoses, pump.
3. The pump depends on the engine operation, and therefore it takes a certain percentage of power at the power plant. If with rectilinear movement GUR does not work, this percentage of power isted wasted.
4. A similar system does not imply a setup of modes of operation depending on the speed of movement, the angle of rotation of the steering wheel.
5. At low speed, good sensitivity of the steering mechanism is ensured, but it becomes less pronounced on high.

The last drawback engineers compensate for the use of a steering rack with a variable gear ratio. Gur has become an outdated system, it is no longer engaged in improving the designers.

The design of the electric powerful

By your EUR device is easier than GUR. It consists of the EU, the torque sensor, the rotation of the steering wheel and the electric motor. There are no hoses and liquids. The electric motor is fixed directly on the steering rake itself, and the torque is transmitted to it by means of a torsion shaft embedded in the steering system.

In the case of GUROM, the effort is facilitated by a liquid, and the current is responsible for this in the electric power. When the driver turns the steering wheel, the force is transmitted to the steering rail. At this time, the torque sensor transmits data to the electronic control unit. The controller expects which strength to transfer to the electric motor to optimally facilitate the rotation of the steering wheel. Since the force must be uniform, the speed of movement is taken into the calculation and the angle of rotation of the steering wheel.

If the steering wheel rotates without the movement of the car or with a small speed, like when parking, the electric motor gets the maximum current strength, the steering wheel is spinning easily. When moving on medium and high speed, such a force is no longer required, and the controller submits a shorter strength.

Pros and cons of EUR

Electrical inspector - a more modern system with high potential for upgrading. It is not devoid of flaws, but their smaller than the Gora:

• high price,
• the electric motor cannot provide greater power of the effort, so it is installed only on passenger cars.

The disadvantages are leveled, since a structurally electric powerful is constantly being improved.

The benefits of the eur for priors are quite a lot. The system is easy to maintain due to the simplicity of the design. The only detail requiring inspection is the rolling bearing. The EUR mechanism has more compact dimensions and can be installed on the steering shaft in the cabin, freeing the place in the subcontrol space. Due to this, the durability of the structure increases, since there is no effect of temperature differences and high humidity.

The electric power does not take power from the engine, which allows you to save fuel. The drive works only during the rotation of the steering wheel. The ECU responds for the work of the amplifier, with which you can adjust the operation of the EUR, taking into account the operating conditions of the car. For the electric power, the extreme position of the steering wheel is not terrible. Movement at high speed makes the steering wheel with EUR more sensitive.

Faults of the steering rack Priory

The problems of the functioning of the steering rail can be different. To identify them, it is not necessary to have a luggage of special knowledge, it is enough to periodically inspect the mechanism.

Big back hand

If driving the engine and actively twist the steering wheel, extraneous sounds should not occur. When not only suspicious noise appear, but the backlash is observed, then the cause of the problem can be a weakened expansion of the spool or insufficient elasticity of Torsion. The steering wheel can be lit. due to the strong wear of the silent blocks, on which the steering rail is fixed. The same problem occurs with the wrong corner of the adjacent of the teeth and the screw, the curvature of the crankcase or the shaft caused by damage or the stroke of the screw type bearing. To determine the malfunction, you will need to diagnose the rail sleeves, steering hinges and teeth.

The appearance of knocks and severity when turning the steering wheel

A heavy steering wheel becomes due to the scurriculous cardan, but most often it is the knock. A number of characteristic reasons for this phenomenon are distinguished:

• noise occurs during the stroke of the vertical bearing shaft;
• excessive wear of hinges and crankcase;
• development of the screw bearing, bushings or teeth;
• curve shaft or crankcase, as a result, the screw is adjacent to the teeth with a displaced angle;
• wear of silent blocks;
• weakened rail mount;
• right steering wheel.

In any case, you will need to diagnose, and when troubleshooting is detected, the displacement and repair of the steering rack of the prior with the replacement of worn items is required.

Steering Tooth Central Tooth Wear

Wearing mechanism with teeth is often found quite. The main purpose of the steering shaft is the transformation of the rotational movement to the translational. For most cars, it is characterized by the development of the resource of the central teeth. The reason is simple: movement in the urban stream is due to a ride in a straight line with small deviations of the trajectory to the left or right.

To determine the fault, you need to turn the steering wheel to the side from the middle position. If the knocks are heard, the further diagnosis is better to spend per service station. With excessive wear of the central touba, the replacement is subject to all shaft.

Problems in the work of the hydraulic

All breakage gur priors, as well as the reasons and methods for their elimination are listed in the table:

In practical terms, the GUR is more likely to change the new or obviously good. The original device is a lot, therefore choose analogs. Models of Chinese manufacturers have proven themselves as an inexpensive version of good quality.

Breakdowns of the electric powerful

To diagnose the malfunction of the electric powerful, first of all, it is necessary to determine the conditions under which a malfunction has arisen. There may be several of them:

• the failure occurred after discharge and subsequent charging of the battery;
• after turning the steering wheel to a large angle;
• when performing parking maneuver;
• when moving at speeds above 110 km / h.

Stripping from these reasons, we can conclude about the nature of faults. Often the cause of the failure in the work is the low voltage of the on-board network. For the normal functioning of the EUR, the voltage must be at least 13.5 V. First, the battery is checked. If it is working, perhaps the onboard network was de-energized after removing the battery for recharging. To resume work, it is sometimes enough to rotate 5-6 times the steering wheel in extreme positions and back.

If everything is in order with the battery, it is necessary to check the insulation of the wiring and connections for a short circuit. EUR on the prior does not work in constant mode, like GUR. The maximum load on the electric motor occurs when the steering wheel rotates at a low speed or car stands still, the minimum - when driving at a speed of over 100 km / h. After reaching the mark of 110 km / h, the electric powerlier does not work at all.

If, while driving turns, a knock or other suspicious sounds are heard during the rotation of the steering wheel, perhaps weakened the fastening nut - it must be lubricate and tightened. To do this, you need to remove the apron under the steering wheel, remove the casing. Sometimes there may be a situation when the wheels rotate spontaneously. This directly indicates a malfunction of the electric power steering control unit.

The main problem of EUR Lada Priora is that in order to reduce the design, the high-quality electrical power of German production was replaced with a domestic analogue, improved, but "raw".

If the amplifier and speedometer do not work, then the problem in the speed sensor is either contaminated or failed. The same applies to the torque sensors and an angle of rotation of the steering wheel. To start, they need to be cleared and reset the errors from the on-board computer, for this you can use several ways:

• remove the terminal with the battery, leaving the on-board network;
• with the help of diagnostic and adapter programs for connecting to the Diagnostic OBD II connector.

If there are suspicions that the fuse burned down, it must be checked and replaced if necessary. It is located in the mounting block, in the cabin, below the steering wheel on the left side. If any of the listed faults occur, they can be eliminated with their own hands, but to fully replace the mechanism of the electric powerful to contact the specialists.

Prevention measures

To make the service life of the steering rack of priors maximum, follow the simple rules of operation:

• irregularities, pit and lying police need to pass at low speed and carefully;
• periodically inspect the state of anthem and salon;
• the oil in the GUR should warm up before starting the movement (short turns of the wheel);
• it is not recommended to keep the steering wheel in the extreme right or left position.

Observing these simple rules, you can avoid expensive repair or replacement of the node.

(09/03/13) Semen
I'm going to get a new prior in a short time, and the consultant in the showroom said that it would not find any such cars with the electric powerlier. I heard that the hydraulicer affects the engine power and not at all for the better. What do you think of it?

To understand, GUR or EUR on the prior will show itself better, you can only learning about the operational qualities of the amplifiers of those who use those of the VAZ of this family on their cars. Fortunately, today there are quite such motorists, therefore, guided by their reviews and valid technical characteristics of the above-mentioned devices, it is easy to make a common picture of the expediency of using each of them.

So, rumors that the power of the steering wheel "absorbs" the engine power is unfortunately, the truth. However, it is not necessary to refuse him immediately because of this. The fact is that when calculating 100 horsepower, the hydraulicel "eats up" only two, which is not so substantial. On the other hand, GUR is a rather complicated system for which the recompacts are very hard. Nevertheless, there are quite good reviews about her domestic rail in 2.5 revolutions, which will not tell about the analogue of the electric powerful - four, with a minimum number of revolutions. Although the design of the EUR compared to its predecessor is quite progressive - details are less, therefore, breakdowns too.

Not many of them like the moment of turning off the Eura, because the steering wheel in such circumstances is becoming seriously coatable, which is too uncomfortable for trips around the city, where turns, you know, a lot of things. In some cases, the complexity of the steering wheel control varies by itself, and this, of course, is unsafe, especially if the driver is counting on a tight turn, and then he is a light, so unfold for a long time, not just turning. In this regard, the GUR system is more stable, which provides additional comfort and when driving along the highway.

On the other hand, the electric powerors are less likely to break, and the recovery of the rail, if necessary, will cost no more than 10 thousand rubles. But the rail of the hydraulicel is already from 20 tr. In addition, the number of revolutions has a significant impact on the quality of the course. In principle, if their quantity reaches 2.7, this is good, but such ease of management can adversely affect the car parking. So, if you do not calculate power, you can "stick together" into the nearest obstacle. Nevertheless, the point here is most likely in the habit of the driver to maneuverability. A long rake of Gora, by the way, also matters - what it is shorter, the one is better.

As for Eura, he in turn saves fuel and does not affect the power of the engine. Considering this moment, perhaps for small trays, such as a prior, will be better to have an electric power than hydraulics. But the worst thing that may happen to him - this is a shutdown when breakdown, so it follows from time to time to observe.

Well, and GUR, and EUR have both pros and cons. Referring to the following facts, the buyer of priors will be able to pick up the amplifier system individually, although the cars of this model with an electric amplifier are practically not performed now. In this case, if the driver does not like the driver, it can simply be replaced. Of course, it will have to spend a little to spend a little, but safely comfortable riding much more important than the money with which you have to part.

Replacement in GUR on prior with your own hands - mandatory for all operation. Gur or power steering - a device that is now in almost every car both domestic and foreign origin. Thanks to him, less effort is applied to the steering wheel, which makes the movement absolutely safe. Therefore, many begin to be interested in the question of which oil in GUR is better, how to replace the composition if necessary.

The design itself will be particularly relevant for SUVs, large trucks. It possesses and several more additional features:

• Allows you to drive a car, even if the system has failed.
• Softens the steering wheel strikes when the road is uneven. Helps keep control over the machine, even if the front wheel was broken while driving.
• Makes a much less gear ratio from the steering mechanism. The car becomes less mannere, but more stable.

Over time, hydraulic oil needs to be changed. This happens when leakage occurs either according to the attached instructions.

But many believe that the oil tank is not needed, like his replacement, because the car feels on the road and behaves perfectly.

Instruments

Tools need the following.

1. Do not do without a few rags.
2. Plastic vessel with volume no less than liter.
3. Syringe, large rubber pear.
4. The key of the end is ten.
5. Passatia.

Operating procedure

Before starting work, it is necessary to prepare the container where the oil will be dragged. Castrol no exception.

1. Subdomizing the front wheels. Two tools for this should be quite enough. Especially the procedure will be useful when you have to merge the old composition.
2. Pear or syringe will help you save the design from the old liquid. The tank for oil at the same time becomes one of the most important details.
3. Need something to cover straps. It protects them from the oil, otherwise it will be difficult to get rid of traces.
4. It is necessary to call the assistant so that he twists the steering wheel to the maximum, then to the left. An oil will appear in the tank again, which must be downloaded immediately.
5. The "Furning" hose is turned off. It does not matter whether HADO oil is used, Eneos oil or something else.
6. The hose falls into the bottle, after which the old excess fluid merges again.
7. You can connect the hose back when everything is completely fused.
8. A new composition is poured, it is possible until the part of the Lada Priora is filled with all. Replacement frequency has already been described earlier.
9. Again, you need to ask someone to twist the wheel. The oil fills in the system as it leaves.
10. The specification suggests that it is necessary to start the engine for 10-15 seconds after the work has been completed. The liquid will start decaying again. And again the topping is required.
11. It remains to make sure that when turning the steering wheel in the tank, air bubbles do not appear. Hydraulic steering wheel always requires such checks.
12. If necessary, the oil fills to the appropriate level.

After all items are fulfilled, you need to start the motor and turn the steering wheel aside. Factory oil should not give any difficulty. The presence of a buzz is also unacceptable. Rotation should be very gently, without any problems.

Interchangeability and classification of oils

Usually oils are divided into several types depending on the color. After how much to change the oil, it was already told. The classification of color is not quite correct. And do not think that you can mix different brands of oils, even if the color is absolutely the same. Composition and viscosity can always be different.

Oils in GUR differ have different features depending on the color.

Some features are associated with the color of the oil, which should be considered more.

• Green color. Basically, this family is used in VAG cars, Citroen, Peugeot. The main thing is to never mix mineral glass with synthetics if they have this color. For an automatic transmission, the oil is never suitable.
• In Mercedes cars, Mercedes use the oil brand painted in yellow color.
• Dexron-s is a red color. Only for automatic gearboxes.

Synthetic oil can be added to the hydraulic power steering, but not in each case. To get the desired result, it is necessary to understand whether the rubber parts have a special composition. But such options produced quite small.

Mixing system

Red and yellow oils can be mixed with each other only if they refer to the same group - to synthetic, or mineral. But the mixing of green is allowed only with themselves like.

If you add green oil to yellow, foam may form. Then it is necessary to wash the system before using oil on another color.

No extraneous phenomena is observed when the yellow oils of GUR and Mineral DEXRON-S are mixed. In the new composition, such additives continue to function normally.

You can add, for example, conditionally mixed oils. Only from different manufacturers, and the mixing itself occurs in different ways. The resource of the hydraulic device does not change, as well as the main mode of operation.

There are still oils that can be mixed only with each other. They can be used instead of other compounds, if you pre-clean the entire system.

Good day to all! This article will be told how to independently produce replacement of oil Gur Lada Priora. The procedure is simple and with normal scenario will take no more than one hour.

So, for a start, we will define what instruments and materials will be required. First, we need the fluid GUR. 1 liter will be enough to replace. Recommended liquid:

Pentosin CHF 11S.. Article for searching in online stores: 4 008849 503016

In addition, other liquids can be used in GUR Priora. For example:

FEBI 46161.
VAICO V60-0018
SWAG 99 90 6162

And you can also use any liquid with the DEXRON II or III standard. These are liquids for automatic transmission, but also in Gur Lada Priora, they can also be used.

We will also need:

Jack - 2 pcs.
- Plastic bottle of 0.5l, 1.5l - 1 pcs.
- Syringe and thin hose - 1 pc.
- screwdriver.

Instructions for replacing Oil GUR Priora

1. First of all, you need to raise the front of the car. It is necessary in order to easier to rotate the steering wheel. For this, two ordinary jacks will fit.

2. With the help of a conventional medical syringe, we pump out the GUR liquid from the tank to any container.

3. When the liquid is fused, remove the return hose from the tank and insert it into the plastic bottle. At this stage, the oil replacement of GUR prior is better to get an assistant who will rotate the steering wheel until it stops in both directions. When the steering wheel is rotated, the fluid is squeezed out of the system. As practice shows, for the total pumping of the liquid from the system of sufficient 8-10 full turns of the steering wheel until it stops.

4. We set the return hose and pour a new liquid of GUR into the tank. After the complete tank is flooded, the assistant starts to rotate the steering wheel again.

At this point, the Liquid Gur will begin to gradually go through the system. When a level decreases, it is necessary to gradually add new oil into the tank. The work is performed until the liquid in the tank will no longer leave. After that, we set the required level in the tank by means of taking or pumping the oil. Watch the lid and omit the car from the jacks.

That's all! Replacing Oil Gur Priora This is completed. Agree that everything is not so difficult? And such a simple procedure extend the life of the pump GUR at times. Do not save on consumables to new meetings!

Cause of car owner Lada Priora. At the service station became a foreign noise when the steering wheel was moved. When conducting diagnostics, the humus of the hydraulic tank pump was detected. Apparently came to the end of his work, or liquid Gura. very rarely changed (recommended frequency 50-60 thousand km Male). You can try simply change the liquid to the original or try to temporarily restore the pump, but it is better to replace immediately Gur On the prior and not spend time. In addition, it is cheaper than to buy twice the liquid and repair kit for repair.

What hydraulic switch pump can be put on the prior (VAZ 2170)?

For installation, a spare part of an analog manufacturer was chosen MSG. with article VZ 001.

What oil to fill in gur prior?

What oil to fill in gur

You can not pour oil in the GUR. The difference between PSF and ATF is huge. Requirements for it are even more than the engine. It must be exclusively mineral water or synthetics, as well as certain viscosity and properties.

From the factory in the hydraulic cell Priors pour light green oil Pentosin CHF 11S., the cost of which is more than 1000 rubles per liter. Original Article 00001-7504780-00-0 (price 1200 p). The manufacturer recommends using for Gura. only the original fluid, so the manual makes the note that the use of another liquid except Pentosin Hydraulik Fluid CHF 11S-TL VW52137 can entail!

We have been made in favor of the transmission synthetic oil "Dexron III Automatic Plus" manufacturer Mannol. vendor code 1 L. Bottles of liquid for Gora - AP10107. The average market value is 390 rubles. It can also be liquid FEBI 6161. (price 500 p.)

How much oil in Gura Lada Priora

For priors with a hydraulicer in the expansion tank will need ~ 0.7 liters liquids. With complete pumping and flushing system, you can use the entire liter bottle completely.

List of necessary tools

• Lift;
• Hex head by 13 mm;
• Ratchet big;
• Hornword-cape at 17, 22 and 27 mm;
• Crosshead screwdriver;
• Star T25.

How to change the pump of the hydraulic cake of the priors with their own hands (removal and replacement)?

1. Unscrew the side protection bolt - asterisk T25;
2. Take protection to the side;
3. Release the roller nut of the drive belt - the key by 17 mm;
4. Raise cars;
5. Remove the belt from pulley;
6. Remove pulley - sh. Head chair by 13 mm;
7. Unscrew the fastenings of the pump - W. Head by 13 mm;
8. Remove the incoming oil pipe clamp - cross screwdriver;
9. Pull the pump;
10. Remove the oil supply nozzle fitting - key by 22 and 27 mm;
11. Remove the pump Gur;
12. Compare with a new pump;
13. Install a new pump;
14. Lower the car;
15. Open the hydraulic tank cover;
16. Pour 0,5 hydraulic fluids;
17. Pump fluid on the system;
18. Fill ~ 0.2 liters;
19. Pump until it stops leaving the liquid.

Torque:

• Hydrausselleter pump fastening bolt - 30-40 NM.;
• Hydraulic pulley bolts - 30-40 NM.;
• Nut of Fitzer - 60-70 NM..

Unscrew with asterisks T25 Bolt mounting side protection. We assign it to the side.

We find the nut of the tension roller of the drive belt. Weakening it with a horny-cape by 17 mm.

To access the drive belt raise the car.

Remove the drive belt from the pulley of the hydraulic agent.

The next step will be dismantling the pulley of the hydraulic agent. Unscrewed 3 Picky Hex Fastening Nuts by 13 mm.

Remove the pulley of the hydraulicel from the landing site. They opened three hydraulic fastening bolts. Unscrew them with hexagon head by 13 mm.

From the reverse side of the hydraulic, there are three more bolts. We dismantle the fasteners.

Cross screwdriver unscrewing the hollow fastening the inlet pipe.

We put the container or the oil worker under the pump of the hydraulic cell and drain the oil. In order for the fluid for the hydraulic agent as much as possible, you need to manually twist the wheel left-right.