What is the pressure in the wheels of the BMW 324. Pressure sensors in the tires of different brands of BMW. Why install a new system

Wheel pressure adjustment car BMW It is recommended to carry out at least once every two or three months. If this rule is non-compliance, the car can be worsened, and it is also possible to obtain such problems as:

• At very low pressureThe edges of the tires are strongly wearing. Also a great probability of damage to the rim of the disk and sidewalls of the tire, especially with full load or high speeds.
• At high pressure values Considates only the central part of the tread. The load on the suspension of the car and the car becomes tougher. Increases the brake path and the grip is worse.

ATTENTION! Adjusting the pressure in BMW tires only in "cold" tires, i.e. When the car did not move for several hours. Otherwise, when "cooling" tires, the pressure in them will decrease, and the adjustment will have to be carried out again.

Additionally

Why are we cheaper?

Price policy Our company is to provide the buyer with high-quality goods for minimal money.

• The price reduction is achieved by reducing additional overhead.
• We do not spend money to rent retail space.
• We have direct deliveries from tire manufacturers and official dealers.
• By purchasing products by large parties, we achieve big discounts.

In this article, we will tell about how to check the fuel pressure in a gasoline injection motor, about checking the components, how best to find the causes of problems and eliminate them. Everything that will be discussed on, not taken from benefits or manuals, all tips are based on personal experience.

One of the key moments of the proper operation of the injection system and in general the motor is a well-established gasoline pressure falling to the nozzles through the fuel rail. Establishing any injection system malfunction should be started from checking precisely this function. Moreover, the procedure is simple, not more difficult than checking tire pressure. But forums are trying to make questions, so we tell more.

First, the rules for the effective operation of the injection and engine. Fuel pressure should:

1. In turning on the ignition to appear and reach a certain level as quickly as possible, no more than in a second, well, a maximum of two

2. Equipment at the desired level all the time of the engine

3. With a sharp progasor jump tentatively by 0.5 bar

4. Already for some time after turning off the ignition, at least 20-30 minutes, and better for a couple of hours

5. Real pressure should exceed nominal for this type engine 1.5 times, but better even more

Each engine has a special reducing valve (Figure 1), which sets the pressure in the fuel rail. It is located at its end and the pressure value that it creates is indicated on the housing. It is for this value that should be equal when checking. The scheme shows how this system looks like and how to check the rules described above using a simple pressure gauge.

How does it really look? For example, there is M50E30, and will demonstrate.

Photo 1. Fixture made of manometer.

Photo 2. Normal pressure gauge, such used in pumping stations. All components can be bought at the store of water supply equipment, only for the benzoshlang will have to go separately.

Photo 3. The thing is small, you can pack in the box with tools, will always be at hand.

Photo 4. The arrows show the direction of the fuel flow.

Photo 5. Gasoline comes from high pressure fuel pump

Photo 6. Excess flows back into the tank, there are almost no pressure. There is also a reducing valve, it is directly under the rail, marked with a red semicircle. He may look a little different and connect with a short hose.

Look at the scheme - there is a cross-disengage on it, which you need to connect the device. We need to unscrew the hose from the rail, feeding gasoline from the pump (see photo5).

ATTENTION! We act very carefully. If the motor muted less than 6 hours ago, the system can be under pressure. What would not be to suffer, you can, for example, to overtake the place of separation by some cloth, or remove the pressure, stretching the fuel pump relay and running the motor. In any case, under the place of separation it is better to put a rag, the remains of gasoline will definitely flow.

Photo 7. The hose is unscrewed, the remains of gasoline flow.

So, unscrewed the hose, connect the device. The system is not broken (see photo 8), it is possible to ride if you can't catch the problem. Now gasoline goes through a pressure gauge with a crane and at any time you can learn pressure.

Photo 8. The device is included in the system.

Now it is necessary to do so that the fuel pump started and stopped working into the moments we need. There are two ways. Either constantly twist the ignition there, or with the help of a relay (see photo 9 and 10). Choose what you like best.

Photo 9 and 10. Location of the power on / off of the gas station. Located near the right rack in a black box.

Now we are ready to check.

Rule 1 (when the ignition is turned on, the pressure appears and reaches a certain level as quickly as possible)

If it is not executed, it can manifest it in three ways:

A. Pressure reaches the desired level, but slowly. This leads to difficulties with starting engine. List possible reasons Problems:

1a. Baszonasos fails

2a. Problems in the electrician of the gas station 12 V (poor quality of contacts or wiring)

3a. Block fuel filter or feeding line (see photo 5, where high pressure)

4a. Note in a reduction valve

5a. Gasoline leakage in connections - from the pump to the rail

6a. One / several nozzles or sealing rings are notch.

B. Pressure does not rise to the desired level. In this situation, difficulties with the start and operation of the motor on the poor mixture will arise. Causes are the same as in paragraph A, a little different failed.

B. Pressure greatly exceeds the specified. This leads to problems with work on a enriched mixture. The cause of the malfunction is likely either a reducing valve or a scored drain fuel line (see photo 6, low pressure)

Rule 2 (pressure steadily remains at the desired level)

If the rule is executed, the pressure gauge arrow shows the specified value without oscillations, stable. If the rule is not executed, then problems will most likely arise idling And when reducing the power of the engine in the load. The reason may be any of the paragraphs 1a-6a. Most often it's in a reduction valve or sparkle in the electrician of the fuel pump.

Rule 3 (with cutting gas supply pressure jumps ~ 0.5 bar)

If it is not performed - the power sections when pressing the gas in acceleration. The reason is again any of the paragraphs 1a-6a, we will exclude only the leaks of the nozzles. Most often - because of reduction valve or disturbing its connection with a motor collector.

Rule 4 (After turning off the ignition, the pressure is saved from 20 minutes. Up to several hours)

Failure leads to difficulties with a launch of even no cooled engine. The reasons should be sought in a reduction or shut-off valves, a leakage is possible somewhere in the feeding line or leakage of nozzles and their seals.

Rule 5. (Real pressure should exceed nominal for this type of MIN engine 1.5 times)

If this rule is not performed, then the previous ones may not be performed, because The reason for the failure of any of them may be a chain pump. And the quality of his work the fifth rule just shows. To check, overlapping a crane on our device and run gas station (ignition or relay) short portions. We look at what the manometer shows (see photo12).

Photo 12. Checking the 5th Rules.

The arrow should almost immediately show 5, 6.7 bar, when it reaches the maximum you need to turn off the gas station. Now compare the maximum indicator with the nominal and evaluate whether the gas station has a power reserve. As mentioned above, the stock is 1.5 times, no less.

ATTENTION! When you turn off the fuel pump, the pressure gauge arrow will quickly fall from the maximum, this is not a defect, the pump valve inertial, the pressure "is drown" when it stops. So fix the maximum value during operation. After the end of the check, discover the crane on our device, you need to release fuel into the system.

Yes. If, after reading the article, nothing is not clear - do not suffer, go to the service.

The peculiarity of this option with pressure in the suction pipeline as a reference:

The vacuum hose of the fuel pressure regulator is connected in the absorbent pipeline behind the throttle valve.

Prerequisite verification:

The required fuel pressure regulator is installed.

Using ETK to check the compliance of the pressure regulator installed on the car:

Connect the control adapter,

Function Description: Fuel Pressure Regulator

The pressure regulator sets a low or high fuel supply pressure depending on the existing need. With the help of the regulator, the fuel supply pressure is maintained at the required level.

The need for fuel depends on the engine operation mode:

At idle requires less fuel

With full load - significantly more

The exact dosage of the amount of injected fuel is carried out by adjusting the duration of the injection; The duration of the injection manages the DME system.

Plusion in the suction pipe provides information about the load. This vacuum affects the pressure regulator membrane.

In idling or forced idling in the absorbing pipeline, a vacuum is created. Depending on the size of the vacuum, the fuel supply pressure decreases relative to the nominal value. The nominal pressure value is knocked out on the chassis of the regulator.

With full load, the vacuum in the suction pipe is approximately zero. The fuel pressure regulator sets the fuel supply pressure according to the nominal value knocked on the body of the regulator.

Function Description: Fuel Pump

The pressure regulator must reliably perform its functions for all operating modes. Therefore, the fuel pump should always provide a higher pressure than which sets the regulator.

Function Description: Fuel Return Pipeline

For disabled Engine And the position of the ignition key 0 in the return fuel line, located behind the regulator, the pressure is missing.

Function Description: Pressure Fixation Function

With a non-working engine and position of the ignition key 0, the pressure regulator is closed. Fuel supply pressure in the supply tube is supported for a long time. The fuel pump closes the check valve. Thanks to such measures, the fuel supply pressure is maintained in the power system. Thus, it is prevented by increasing the start time.

Run the engine in idle mode and measure the fuel supply pressure.

To simulate the status of "full load":
Disconnect the vacuum hose from the fuel pressure regulator and measure the fuel supply pressure.

The measured value depending on the type of engine should increase by 0.4 - 0.7 bar. Record the measured value.

If the measured value does not increase:
Replace the vacuum hose and again measure the fuel supply pressure

If the measured value again does not increase:
Replace pressure regulator

Measure the fuel supply pressure again and write the measured value.

Compare the measurement result with a nominal value, knocked out on the pressure regulator housing

If the prescribed measured value is not reached again, it is necessary, depending on the measured value, perform the following checks.

If the measured value is less than the nominal value - 0.2 bar:

The suspension of the fuel supply pipeline is narrowed, or a fuel filter is clogged.

The fuel pump power supply circuit is not in order: for example, due to large transition resistance (corrosion) in the plug connection between the wiring harness and the fuel pump

If the measured value is larger than the nominal value + 0.2 bar:

Move the engine and watch the measured value.

If it decreased to the nominal value, then the return fuels are narrowed or clogged

Check the fuel lines on the absence of fuss

In the absence of fuss:

Replace return pipelines

If the measurement result remains too high, it means that the pressure regulator is defective with a high degree of likelihood.

A warning!

To a lesser extent, there is a chance of full overlap of the return pipeline due to clogging. In this case, when removing the pressure regulator under the action of pressure should flow fuel!

Having ready to rag and collect protruding fuel and send to disposal.

Replace not regulator pressure, but a return pipe.

Give the engine to work a little at idle and drown.

Remove and write an indication when the engine is turned off.

For the next check, you will need a device 13 3 010 (hose clamp).

If the measured value dropped more than 0.5 bar:

Run the engine and wait a bit of constant pressure injection

Lower the engine and using the device 13 3 010 to immediately press the supply hose immediately before the pressure gauge.

Record the measured value.

After about 20-30 minutes, again, replace the reading when the engine is turned off.

If the measured value has now dropped less than 0.5 bar, then the following faults can be assumed:

Malfunction of submission pipelines

Malfunction of the supply hose inside the fuel tank

Failing pressure fixing valve (check valve) in the fuel pump

Check the items. Replace faulty details.

If the measured value fell more again than 0.5 bar:

Replace pressure regulator

Note:

All fuel hoses and fastening clamps that were disconnected to check should be replaced.

When the engine is running with a removed vacuum hose During troubleshooting of the DME system, malfunctions can be entered. Messages about faults "Adjusting the composition of the working mixture with a lambda-probe is incorrect" or "adjusting the composition of the working mixture with a lambda probe at the limit" at the end of the inspection should be erased:

Pressure in BMW 5 tires (G30) 17 depends on the used tire size installed on your machine. It should also be considered how much you are planning to load the car.

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Additional notation:

Check pressure in summer or winter tires BMW 5 (G30) 17- It is necessary only on "cold" tires, i.e. When the car did not touch the machine for a long time.

All data in the tables are calculated specifically for the BMW wheels, the temperature of which coincides with the ambient temperature.

With long journeys and high speeds, it is better to pump the tires to the pressure values \u200b\u200bfor the full load, it will help to avoid the "breakdown" of the wheel and more protects your discs from damage when entering the pit.

Additionally

Why are we cheaper?

The pricing policy of our company is to provide the buyer of high-quality goods for the minimum money.

• The price reduction is achieved by reducing additional overhead.
• We do not spend money to rent retail space.
• We have direct deliveries from tire manufacturers and official dealers.
• By purchasing products by large parties, we achieve big discounts.

Bavarian motor plant, which most knows like BMW, will soon be a hundred years. And all these years, cars won the hearts of many car enthusiasts come from his conveyor. The reliability of the BMW machines is checked for years.

In the last decade, a special excitement occurs around bMW crossovers. Since the data of the car is difficult to attribute to the category of inexpensive, so they are mainly acquired by wealthy people who value their lives. A lot of important fact is the comfort of the salon, the convenience of driving and appearance.

The most common machines of this class are:

• BMW X1 - the crossover is ideal for traffic in the city. He has a representative look, and security is recognized very high.
• BMW x3 - This crossover refers to the class "Suite". High and powerful, with a true "BMW-Facial Expression" he slides on the roads, attracting attention to him.
• BMW X5 - This car has been furious by almost two decades. It is easily controlled, contains all the necessary functionality for a pleasant and secure ride. Looking at him, so I want to apply the word "cute."

Unfortunately, despite its attitude to security, BMW manufacturers are not installed on standard equipment Machines Pressure sensors. Perhaps the exception of the car under consideration will be only x3. Owner of the rest vehicle You will have to take care of this question yourself.

Does sensors affect driving safety?

If the car refers to the category of expensive and safe, like BVM, then this does not mean that nothing worries about and everything is already taken into account. Tire pressure monitoring system is recommended to install all auto owners. It will be another plus in a safer driving piggy bank.

Sensors last generation Allow the driver to notice the pressure deviations in a timely manner. The smart system is notifying about trouble, which allows you to quickly eliminate the problem. All information enters the display on-board computer The car, on the rear view mirror or remote monitor, it depends on the installed device model.

Pressure control will give the driver the opportunity to notice such moments as:

• damage to the wheel during movement, characterized by a sufficiently sharp decrease in indicators;
• pumping the tire or, on the contrary, not weak air in it;
• slow destenition of the wheel due to a small puncture or poorly twisted spool.

All this is important, because the car moves at high speed in the vehicle stream and any malfunction can lead to a serious accident.

Why install a new system

Pressure sensors B. bMW tires X5 E70, X1 not installed at the factory, unlike x3, although they can be brought on these cars from the USA. But even if the device is already there, there are still the reasons for installing new devices.

• The sensor broke.

All not forever and breakdowns are the norm. Sometimes just a battery and resuscitation with the replacement of the battery will quickly return it to life. In other cases, do not do without buying a new set of indicators.

• Buying another set of wheels.

So that the machine does not "hysteria" and not irritated with sound and light signals in the absence of sensors, it is required to purchase them, installation and prescribing to the brains of the car.

• Replacement for the latest equipment.

All in our world is improved and pressure sensors are no exception. Developed devices are the most accurate, comfortable, functional expands. Therefore, progressive drivers try to equip their "horses" of new items.

Installation of pressure monitoring system

Independently install pressure sensors on BMW not easy, it is desirable to immediately go to a good car service. There will produce a number of manipulations on the installation of the device and will launch it to work.

1. From the car they will remove the wheels and make an elevation, that is, separating the tires from the disk.
2. If old sensors are installed, they will be removed and the installation of new ones will be taken.
3. Next should be back to collect wheels and balance them with regard to the installed equipment.
4. Then the car acquires its initial View On four "legs".
5. After this, the autoelectric produces device setup and checks the performance.

It is worth noting that in official car services it will not be possible to establish different pressure sensors other than the original. But contacting private firms you can put clones sensors. It will be much cheaper, but no one will give the guarantee of their long working capacity.

Cars BMW, and no matter what model they relate to -ch1, x5, x3 or some others, although they are considered one of the most reliable in the world, they will not be able to ensure the safety of the driver, if he does not want it.

Modern machines are equipped with a variety of useful options, and their functionality is wide, but do not forget that any car is on four wheels, so for their states it is necessary to monitor especially intently, paying direct attention to the tire pressure monitoring system.