Many modern cars are equipped with the same clutches all-wheel drive“Haldex” is also installed on the Volkswagen Tiguan. Thanks to Haldex coupling torque is distributed between the wheels. It is electrically controlled and integrated into the crankcase final drive reverse. The coupling has a hydraulic system and optimizes the pressure itself. "Haldex" helps perfectly on any road surface, the clutch is easy to operate in any conditions; Thanks to this device, the rear main gear is constantly running.

The clutch controls the brakes and ESP systems, ABS. This is very important element a car, without which driving will not only cease to be comfortable, but will also be impossible for a number of reasons. In order for a spare part to serve for a long time, it requires special regular care. Changing the Haldex coupling oil is one of the mandatory operations when servicing this unit.

How often does the oil in the Haldex coupling need to be changed?

If the car is on warranty service, then the dealer suggests changing the oil every 60 thousand kilometers, but this figure is greatly overestimated, and in fact, failure of the clutch or pump may occur much earlier. If the car is not under warranty, then changing the Haldex clutch oil is recommended every 30 thousand mileage. There is no point in delaying this operation, as complete replacement A new assembled coupling can cost 200 thousand rubles. This amount is much more than the cost of regular maintenance.

When changing the oil in the clutch, the oil filter must be changed each time. Dealers often consider it unnecessary to do this; as a result, the pump breaks, replacing which will not correct the problem, since new element will burn out quickly due to a clogged oil filter.

Which filter is suitable?

Changing the oil in the Haldex clutch on a Tiguan also requires replacement oil filter, however often even official dealers They can’t pick him up without even knowing what his number is. Actually find required filter not so difficult: it is produced specifically for the Volkswagen Tiguan by VAG. You can find the product by article number 02D525558A. This original filter, which is recommended to be installed on the car.

Which oil is suitable for the Haldex coupling?

Before you change the oil in the clutch, you need to buy everything you need for this. Even if you are going to contact a service station, suitable oil It may not be there, but you can’t fill it with just anything. The procedure itself is not very complicated, and if desired, the motorist can carry it out independently. Best to buy branded oil for the Haldex coupling: it is produced by VAG. Product catalog number G 055175A2. You can purchase a similar oil with the same article number; suitable oil is Volvo31325136, as well as Atoy Oy. Last

One product is the most expensive, although it differs little in quality from its analogues. Oil capacity for the 4th generation Haldex coupling is 720 ml.

Changing the oil in the Haldex clutch on a Tiguan does not require complex knowledge of mechanics and is quite feasible in a garage with the hands of a car enthusiast. No special equipment is required to carry out this operation. You don’t need any special skills either, but before starting work you should study the theoretical part of the issue well and acquire everything Consumables.

You need to work with the clutch carefully, since the transmission of the differential from one axle to another depends on it. If you install the clutch incorrectly. rear drive will stop working. There may be other problems with the car.

The coupling has a relatively simple design, which includes a pump, a pressure accumulator, friction discs and control system. When changing the oil in the Haldex Tiguan, you should not touch those parts of the structure that are not directly related to the operation being carried out on the car.

Volkswagen Tiguan: do-it-yourself oil change in the Haldex clutch

Before starting work, you need to take care of purchasing oil. As already mentioned, the product marked G055175A2 is suitable; you will need 650-750 ml of it, so you can safely buy a liter package. It doesn’t hurt to have a supply, as something may spill during the process. The standard package is usually liter, and you can’t buy less, because if you don’t add oil, the clutch will quickly fail.

You need to look for the clutch in the crankcase belonging to the differential rear axle. Changing the clutch oil of a Volkswagen Tiguan requires care, because due to inexperience, car enthusiasts sometimes confuse the plug of the clutch and the gearbox rear axle. If you mistakenly pour clutch oil into the gearbox, you will have to change the entire gearbox oil. This is because this element requires a different type of oil that cannot be mixed with clutch fluid.

Before removing the plug, it is advisable to familiarize yourself with a photo of the desired vehicle component on the Internet. Before you start, you need to prepare a container into which you can drain the used oil. A cut-off bottle, canister, jar or other container that can be thrown away is suitable for this. You can also use a bucket, but due to its size it will be inconvenient to work with. Before draining the oil, remove the filter and oil pump.

Location of the oil filter

Place a container under the coupling plug, unscrew the plug and wait until the liquid is completely drained. After the waste has flowed into the prepared object, the lower plug is screwed in and the upper plug is unscrewed to fill the coupling with new liquid. It is not necessary to warm up the Tiguan before changing the oil in the Haldex coupling.

It is not possible to add new oil directly: it is most convenient to do this with a syringe. The larger it is, the faster you will fill the coupling. For convenience, a thin hose or tube is placed on the tip of the syringe; a needle is not needed at all and can be thrown away immediately.

It is impossible to determine the oil level in the coupling. It is poured until it overflows, and after that the hole must be wiped with a dry cloth and the stopper put back in place. In some cases, it may be necessary to flush the coupling.

If changing the oil of the Tiguan Haldex clutch did not go according to plan, and you find out that the clutch is clogged with debris, it is better not to fill in new oil immediately, but to clean the part. It is recommended to do this even if there are no obvious problems with this spare part. A cleaning liquid is suitable for this procedure. brake discs. It is alcohol-based and will not harm the part. There is no need to remove the coupling for cleaning. To preserve the coupling, it is prohibited to use liquids for cleaning carburetors, OBD and other aggressive components: such liquids can harm the rubber components of the coupling.

Before starting work, thoroughly clean all connections between the motor and filter from dirt (so that dirt does not get inside);
- remove the filter first, preferably by “squeezing out” its cover with a motor (via a cord/starting the engine/direct supply of 12V to the “+” terminals of the motor from the square side of its chip, and changing the polarity will not harm anything) in order to avoid damage to the seal with 2 rubber rings;
- remember which side the filter was on!!! because it has a check valve!!!;
- then drain the oil through the drain hole, tightening the plug to 30 Nm
- remove the motor (without breaking the chip connecting it to the block. You can practice on the chip from the antifreeze tank - they are the same), clean the mesh on it;
- use up a can of brake cleaner (preferably alcohol-based! Do not use BD brakes, carburetors, etc. - they corrode the rubber parts of the coupling) - spray into the FILLER hole, the holes in the “bed” for the filter and for the motor, trying to clean the channels. Until it comes out the same color as you poured it in;

Place the filter on the CORRECT side and lubricate it with oil. mounting hole sealing plug and the plug itself with 2 rubber rings. And, without allowing it to skew, carefully push it in there until the second cutting ring disappears, tighten it with a lid;
- do the same with the motor - lubricate the mounting hole of the motor and its 2 rubber sealing rings with oil, put it in place, tighten it to 6 Nm (don’t forget to put the chip back in the block);
- fill in new oil... the filling volume of the coupling is ~720 ml, only 600 ml fits in at once. Therefore, after pouring oil to the edge of the filler hole, you need to close it (the hole), drive 100-300 meters smoothly (if you don’t have the opportunity to drive, you can start the car a couple of times to bleed the system or start the pump Vasya), then add oil into the clutch again - it will fit once the remainder is about ~120 ml... the tightening torque of the plug is 15 Nm.
When checking the level, the oil temperature should be between 20 ... 40 °C degrees Celsius.

Twist everything, tighten it and enjoy)

In cars with a Haldex coupling, due to the fact that the coupling is located in the same housing with the main gear, drain and filling plugs both systems.

Such mistakes should be avoided during maintenance and repair, because they can lead to failure of the clutch or final drive.

Traffic jams rear axle gearbox shown green arrows, and all-wheel drive clutches Haldex - red :

• N 902 818 02 - filler plug for Haldex coupling - red top
• N 910 827 01 - drain plug Haldex couplings - red bottom

1. Haldex coupling filling hole screw (N 902 818 02)
2. Haldex coupling drain plug (N 910 827 01)
3. main drive filler plug
4. main gear drain plug

When changing the oil and filter, it is advisable to clean the pump mesh:

1. remove the pump connector
2. unscrew two bolts
3. remove by pulling out the pump
4. then unscrew the two bolts marked in the photo that secure the mesh
5. take out the mesh, wash it and put it back together

Repair kit for seals for booster pump haldex 4 - 0AY598305.

Increasingly modern vehicles are equipped with special all-wheel drive clutches called Haldex. They help to correctly distribute torque to the wheels. This clutch is equipped with an electric drive control and is structurally located in the main gear housing (reverse).

The Haldex coupling helps optimize pressure thanks to hydraulic system– it is very comfortable to drive even in difficult conditions. Constantly working reverse gear– another feature of this type of design. She dominates braking system, as well as over ABS systems and ESP.

The coupling is one of the most important structural elements automotive system, the absence of which affects not only the quality of the ride, but also calls into question its very possibility. Replacement oily liquid in various structural elements – required condition proper maintenance vehicle.

Clutch lubrication is very important for its proper functioning. It helps lubricate parts that rub against each other, reducing wear. The lubricant inside the system should be changed every 60 thousand kilometers, but if the car is operated in difficult conditions and, moreover, very intensively, it is necessary to make a replacement earlier. Changing the oil in the Haldex system on a Tiguan can be done on your own if you follow the basic rules.

The mechanical part of the Haldex unit consists of the following important components:

• Input and driven shaft;
• Friction discs;
• Working piston;
• Axial piston pump;
• Disc cam;
• Drive head.

When a car slips with one wheel, a difference in the driven and drive shafts is formed in the design, as a result of which the cam washer element begins to flow onto the piston. During reciprocating operation involving the piston, lubricant pressure increases, causing the shafts to compress and engage.

The clutch itself has an electric drive control, which consists of sensors, an electronic unit and special actuators. The lubricant oil temperature sensor is an input.

The control unit can convert the influence on the actuator into information, which is subsequently used by the electrical unit. The actuators are a special valve that regulates the compression of the discs, and the accumulator together with the pump maintains the required oil pressure.

Advantages

The system will function correctly only with proper maintenance and timely replacement lubricants By observing these conditions, you can extend its service life for a long time. First of all, it is necessary to regularly monitor the level lubricating fluid. It is also necessary to carefully monitor leaks, and replace the lubricant only together with the filter.

If we talk about the advantages of this type of units, they are as follows:

• The advantage of front-wheel drive is retained;
• Lack too much high voltage in the transmission during maneuvers;
• Lack of sensitivity with different tires;
• Constant feeling of all-wheel drive;
• Possibility of electronic control of the system.

Replacing the Haldex coupling lubricant: features and stages of work

Before replacing the lubricant, it is necessary to prepare necessary tools, new oil G055175A2 and replacement filter. The volume of lubricant for the coupling will need to be small - about 650 milliliters.

It is necessary to ensure that the purchased materials are of high quality, so you should not purchase oil in dubious places and at too low a price. To change the fluid you will need:

1. Container for draining used oil composition - old oil will be drained into it;
2. A set of necessary keys;
3. Rags;
4. Protective gloves and glasses;
5. Pliers;
6. Lighting device;
7. Syringe with tube for accurate pouring new fluid into the hole.

Changing the oil in the Haldex coupling on a Tiguan is done without any particular difficulties, so this procedure can be done by anyone, even those who do not have special skills.

An important point: when changing the oil, you need to carefully ensure that the coupling and rear axle plugs are not mixed up - such a mistake can greatly harm the car.

1. First of all, it is necessary to drain the waste fluid. To do this, you need to place a pre-prepared container under the drain hole by unscrewing its plug;
2. After making sure that the remaining waste fluid has been completely removed, you need to unscrew the top plug, after which the bottom one can be returned to its place;
3. Next you need to draw into the syringe new lubricant and pour oil through the filler hole until it overflows.
4. The final stage is to wipe the dirty elements and screw the hole with a plug. After this you can take a test drive.

Conclusion

Changing the oil in the clutch is a useful and quite simple task. It helps improve performance characteristics both the clutch and the entire vehicle as a whole. The clutch helps improve car specifications only in case of timely replacement of lubricating fluids. Regularly changing and monitoring the oil level in the Haldex coupling will protect you from unpleasant surprises and help it serve for a long time and properly.

The oil in the clutch plays very important role. It lubricates rubbing parts and requires replacement after 60,000 km of vehicle mileage. But if the machine is operated with increased loads and mainly off-road, it is recommended to change the oil earlier. Replacing the lubricant in the coupling with your own hands is a very simple procedure.

Clutch and its operating principle

The mechanical part consists of:

• Input shaft.
• Axial piston pump.
• Working piston.
• driven shaft.
• Drive heads.
• Disc cam.
• Friction discs.

If one wheel slips, a difference in the rotation of the drive and driven shafts occurs on the machine, thereby the protruding or descending part of the cam washer enters the piston. When the piston reciprocates in the hydraulic system, the pressure of the lubricating fluid increases.
The set of discs then compress between the shafts and then engage.

The hydraulic part consists of:

• Electric pump.
• Oil filter.
• Discharge valve.
• Inlet valve.
• Pressure regulator with adjustable valve.
• Safety trip valve.
• Hydraulic accumulator.

In order for the entire system to work quickly, the electric recharge pump begins to rotate at 400 rpm, thereby pumping up pressure to 4 kgf/cm2. The feeding pressure is maintained by a hydraulic accumulator, thereby affecting the surface of the electric pump piston, as well as the piston itself.

The advantage is that the piston contacts the disc cam on one side. And the other side, using back pressure, eliminates the gap on the friction disk set.–
The hydraulic accumulator, in addition to maintaining pressure, performs another important task - it equalizes incoming pressure fluctuations. When there is no pressure on the feed line, the spring on the accumulator is released. And through the battery itself, the lubricant is not discharged from the entire line. Wherein high blood pressure on the line does not occur due to the bypass of the lubricating fluid through the battery to the lubricant collection tank itself. When the pressure decreases, in this case the spring expands and reduces or completely stops dropping the lubricant into the container.

Car maintenance: draining and filling lubricant from the device that connects the rotating shafts

The clutch is controlled electronically, which includes input sensors and then actuators and the electronic unit. The input is the lubricant temperature sensor.

The control unit converts control actions on the actuator into input information. Except temperature sensor lubricating fluid, the electrical unit uses the transmitted information from the engine block control and ABS control, which is obtained via the CAN bus.

System actuator control is a valve that regulates the compression pressure of the friction discs from 0% to 100% of the maximum value. At the same time, the pump and accumulator ensure that the lubricating fluid pressure in the system is maintained at 3 MPa.

Clutch lubrication system and its maintenance

During operation, the coupling requires attention and timely service. If you follow very simple maintenance, the coupling will last a very long time.

• You need to monitor the lubricant level. Also inspect the coupling for lubricant leaks.
• The lubricating fluid and filter must be replaced in a timely manner.

Advantages of the Haldex coupling

• The dignity of front-wheel drive is preserved.
• There is no increased stress in the transmission when maneuvering and parking.
• There is no sensitivity when there are different tires.
• There are no restrictions when towing with a suspended axle.
• Unlimited combination with other ABS, EDS, ASR, ESP systems.
• All-wheel drive is constantly carried out, as well as electronic regulation of the clutch itself.

Preparatory work and operations

The main thing is to prepare all the tools that will be required for the work, as well as buy oil and a filter. You need to buy oil G055175A2. It will be consumed within 650 ml, so it is advisable to buy a liter. Oil, as well as a filter, need to be purchased High Quality, since this will make the coupling last longer. Not worth buying too cheap oil, since the quality may not be very good.

List of required tools:

• A small vessel into which the waste liquid will be drained.
• Keys to unscrew the drain and filler plug.
• A key for unscrewing the lid under which the filter is located.
• Pliers.
• Portable lamp or flashlight.
• Latex gloves.
• Rags.
• Safety glasses.
• A stock syringe with a tube for pouring lubricant into the Haldex coupling.

Replacement process

Draining the used engine oil and removing the old filter

Installing a new filter in the haldex coupling

The old filter must be thrown away, as it is unsuitable for further use. You should always install only a new one.

Filling oil into the clutch

How to easily and quickly change the lubricant in a car?

This article will help you replace the lubricant with your own hands, without resorting to the help of a service station, thereby saving money, as well as your time. And most importantly, you can perform this operation to change the lubricant once and change the oil all subsequent times without any problems.

And a little about the author’s secrets

My life is not only connected with cars, but with repairs and maintenance.

But I also have hobbies like all men. My hobby is fishing. I started a personal blog in which I share my experience. I try a lot of things various methods

and ways to increase catch. If interested, you can read it. Nothing extra, just my personal experience.

Attention, TODAY only! Automatic transmission modern cars is a high-tech system with electronically controlled . The transmission design consists of many parts that operate under severe loads. To exclude unexpected breakdowns and conservation long term services must be carried out regularly Maintenance

, and use a lubricant approved by the manufacturer.

A little theory: 4-Motion system In the Volkswagen Tiguan crossover, torque from the engine is transmitted to an automatic gearbox. Further, transfer case provides rotation of the front and rear axles. The movement is transmitted to the front wheels through the front axle differential. Simultaneously through cardan shaft

The torque is supplied to the Haldex all-wheel drive clutch, which drives the final drive and rear axle differential. Depending on the operating mode and driving conditions, the automation distributes torque across the axes, ensuring maximum efficiency.

The rotation of the rear axle wheels is ensured by a Haldex coupling located in the rear final drive housing. Oil pressure on the piston causes compression of the friction discs, and the clutch transmits torque up to 2400 N*m. An electric axial-piston type pump, which is controlled by an electronic controller, is responsible for pumping oil. Operating pressure in the hydraulic system of the Haldex coupling is about 29 atmospheres. The system is equipped with a maintenance-free oil filter with check valve.

Note! If the Haldex coupling pump fails, the oil pressure in the system disappears and the transmission of torque to the rear wheels.

Transmission fluids for Volkswagen Tiguan

For automatic transmission AISIN gears 09M is recommended by the manufacturer for use working fluid ATF ( AutomaticTransmission Fluid standard G 055 025. The lubricant has high fluidity and a characteristic red color.

Those who like to save money on analogues should remember that, unlike standard gear oils 70W-80, 80W-90, in automatic transmissions the lubricating fluid must remain fluid at any temperature up to 120 degrees. Therefore, the SAE viscosity classification is ATF fluids does not apply.

The capacity of the automatic transmission when first filled at the factory is 7 liters. When replacing, you will need about 5 liters transmission lube, since the remaining 2 liters of oil are distributed throughout the lines, cooler cavities and the internal volume of the gearbox and cannot be drained without completely dismantling and disassembling the unit.

Haldex is poured into the all-wheel drive clutch mineral transmission VAG oil G055 175 A2. The volume of the system is 720 ml.

Changing the oil in an automatic transmission

Many manuals indicate that the transmission oil in a Volkswagen Tiguan automatic transmission, filled at the factory, retains its performance characteristics throughout the entire service life of the vehicle. However, in practice, it is recommended to replace the lubricant in the gearbox every 60 thousand kilometers traveled due to the difficult operating conditions of the mechanism.

To change the oil in a Tiguan automatic transmission yourself, you will need the following consumables:

• transmission ATF lubricant appropriate clearance;
• oil filter (code 09M 325 429);
• gearbox pan gasket (code 09M 321 370A);
• plug o-ring drain hole(code 09D 321 181B);
• container for draining oil;
• rags.

To carry out the work, you will also need a device for pumping transmission fluid.

To successfully change the oil in the Tiguan automatic transmission, it must be warm. To do this you need to travel for at least an hour. various modes. After the lubricant has warmed up, the car is installed on an inspection hole, overpass, or hung on a lift.

To access the gearbox, the engine protection and gearbox mudguard are removed. The box tray and adjacent surfaces are cleaned of dust and dirt. To drain the old transmission lubricant, you need to unscrew the drain plug with a No. 5 hex wrench.

Warning! Transmission oil flows out of the gearbox opening in a spiral stream, so it is recommended to use a funnel to collect the oil suitable size to avoid liquid spills and contamination of clothing and work area.

After about one liter of oil has drained, you need to unscrew the overflow tube using a hexagon to ensure further flow of lubricant.

When the leakage of transmission lubricant stops (the total volume of drained fluid will be about 4 liters), the drain plug is put in place, and the bolts securing the automatic transmission pan are unscrewed with a 10mm wrench.

The remaining lubricant is drained from the dismantled pan, inner surface thoroughly wiped dry with a rag, and metal particles resulting from wear of the box parts are removed from the magnets. Then the oil filter with a protective mesh is disconnected from the valve body.

Information! In most cases, automatic transmission breakdowns are caused not by deterioration of the properties of the transmission lubricant, but by the leaching of solid metal particles into the gearbox mechanism that were not removed from the pan magnets in time.

On regular place are installed new filter and a pan with a fresh gasket. Before installation, it is recommended to pre-coat the oil filter seals and pan gasket with transmission oil.

Development of a Tiguan automatic transmission after changing the lubricant

To ensure uniform distribution of the lubricant throughout the entire volume of the box, it is necessary to ensure automatic transmission operation in all modes for several minutes. After this procedure, you should check the ATF level.

The lubricant level is checked using a laptop with a pre-installed software, for example VCDS or VAG K.

On the device connected via the diagnostic connector, the menu is activated: “Automatic transmission” - “Measured values” - “Group 06”.

The initial conditions are set according to the manual:

• temperature transmission oil ATF no more than 30 degrees;
• the machine is standing on a flat horizontal surface;
• The gearbox selector is in the “Parking” position.

With the car running, when the indicator reaches “ ATF temperature» values ​​ranging from 35 to 45 degrees, the oil level check plug in the automatic transmission is unscrewed. If there is a sufficient level of lubricant, about 300 grams of oil will drain from the bypass tube. After this, the control hole is tightened with a plug with a new sealing ring. If transmission lubricant does not flow out of the control hole, then the gearbox needs to be topped up with oil.

After completion of the operation, the surfaces of the parts are cleaned of oil residues, and the connections are checked for leaks.

You can get a visual representation of the process of changing the oil in a Volkswagen Tiguan automatic transmission from the following video:

Changing the oil in the Haldex all-wheel drive clutch

According to recommendations VAG concern for coupling Haldex replacement Oil changes should be carried out in the range of 40,000-60,000 kilometers traveled, depending on the frequency and intensity of use of the all-wheel drive. For cars with low annual mileage, it is recommended to change the grease in the clutch every 12 months.

4th generation Haldex

For self-replacement transmission oil in the Volkswagen Tiguan all-wheel drive clutch, you will need the following tools and materials:

• container for draining liquid;
• set of wrenches;
• pliers;
• a medical syringe for 100 cc and a flexible tube of suitable diameter;
• new oil for the Haldex coupling;
• oil purification filter 31325173;
• rags;
• gloves and safety glasses.

Work is carried out on an overpass, inspection hole or at car lift. To carry out an oil change, the machine must be installed strictly horizontally.

To preheat the old oil to facilitate the draining process, you should operate the car in all-wheel drive mode. Before removing the waste fluid from the clutch, you need to unscrew the two fixing bolts and remove the filter cover fine cleaning, using pliers, pull out the plastic gasket and dismantle the filter element.

Advice! You can briefly start and immediately stop the engine so that the oil pressure forces the filter and gasket out of its seat.

Then the drain plug of the coupling is turned out, and transmission fluid drains by gravity into a suitable container.

After the procedure is completed, the plug is screwed back into the Haldex coupling body, and seat a new filter is installed, pre-lubricated with oil.

Also need make sure there is no damage to o-rings, which are on a plastic gasket. Failed seals are replaced with new ones to prevent oil leakage. The assembled gasket is inserted into the coupling.

New oil is poured into the Haldex coupling using a syringe. To do this, instead of a needle, a flexible tube is put on, which is inserted into the filler hole. The procedure is carried out until grease begins to flow out of the hole. After it's filled sufficient quantity transmission oil, screw in the filler plug, and wipe the clutch housing dry with a rag.

Then make a test drive, after which you should turn off the engine and make sure there are no leaks from under the Haldex coupling plugs. After 10-15 minutes, you need to unscrew the filler plug to check the lubricant level. If liquid flows out, then the level is sufficient. If necessary, transmission lubricant is added to Haldex. After checking, the plug is installed in place, oil spills are removed with a rag. This completes the procedure.

The procedure for changing the oil in the Haldex VW Tiguan clutch can be seen on next video:

5th generation Haldex

The sequence of work for changing the oil in the fifth generation Haldex is similar to that described above with one exception. As a result modern trend to reduce size and weight automobile units The control has been removed from the all-wheel drive clutch design solenoid valve. Respectively Haldex 5 does not have an oil filter fine cleaning. As a result, wear products (metal dust and shavings) accumulate in the oil circulating through the hydraulic system, and high probability may cause serious damage. Therefore, for a greater guarantee for the new clutch model, the interval between transmission lubricant changes should be reduced by another few thousand kilometers.