Every more often the owners of Volkswagen are addressed to us with questions about the need to replace oil in the coupling of a constant full drive. All more often, the owners of Volkswagen are treated with questions about the need to replace oil in a permanent full drive clutch.

Coupling Haldex Volkswagen Tiguan at the request of the manufacturer the eternal node and does not require maintenance. We understand that the eternal nodes and liquids does not happen, everything comes to all, it is especially true for transmission assemblies - distribution, gearboxes, gearboxes and couplings, including Haldex. Elsa, of course, more visible, we completely trust German Kudesnikov engineers, but the saying "trust, but check" no one has not been canceled.

Given:

Car: Volkswagen Tiguan
Year of release: 2011
Model year: 2011
Engine: CAWA (2.0 l., 1984 cubic meters. See, 200 hp)
Features of DVS: gasoline, 4 valves per cylinder, chain drive GRM
Transmission: JVZ ( classic ACPP, 6 steps, modification 09g)
Preselective PPP Robot DSG: No
Mileage: 60191 kilometers

Haldex coupling was invented in 1988 by the Swedish engineer Sigvard Johansson, which developed the idea of \u200b\u200bautomatic redistribution of the torque between the axes of the car in unpredictable rally conditions, as it was also a rally rider. In 1992, he sold his invention to the Swedish company Haldex, after which it began to be introduced into the structure of the All-wheel drive quattro transmission, thereby implementing the concept of automatically connected full drive. The Haldex coupling serial machines applied since 1998. The first were Audi A3 Quattro, Audi TT and VW Golf.

Coupling Haldex Volkswagen Tiguan was improved and adapted by German engineers. It was used to be used by the Viscuft, which gave a four-wheel drive, but had a number of restrictions and inconveniences, most importantly of which low speed Warning, which allowed the wheels to slip when the driver did not expect it. Haldex is regulated by a computer that tracks the speed of each wheel, movement in turns, how the car slows down and accelerates, relieves the data from the crying sensor, on the basis of which controls the coupling. All this is greatly combined with ABS, EDS, ESR, ASR, which allows us to ride comfortably and safely.

The hub, discs, working and sliding pistons are drunk, pressure, compress each other, which means wear. Coupling Haldex Volkswagen Tiguan is equipped with a filter that is installed in the gearbox crankcase rear bridge and is activated when the full drive is turned on. Vag engineers somehow missed a logical chain "If there is a filter, then there is dirt", and therefore it must be changed. For a long time, the formula for the periodicity of oil replacement in the Tiguan gearbox is already displayed - every 50,000 kilometers with unloaded ride. Why is that? When the rear axle is working into oil, wear products (metal, plastic, paper) and, like the Chinese, which are cut through all the markets of the world, these abrasive particles are cutting into the work of the rear gearbox. The contact of the metal with metal provokes oxidation in this node, over time, pouring into more serious malfunctions, up to the conversion of the car to the front-wheel drive - it's how to get a snowball from a small child, like a trifle, but the bruise can be impressive.

Getting Started: First, the diagnosis of Tiguana, then drive a car through a technical sink, raise the needy in the lifting, inspect the bottom and suspension for damage, heights and some suspicious things. We are convinced that everything is fine and go directly to replacement.

The filter is hidden behind the lid.

It is not difficult to remove it, first you need to weaken the bolts on it, but do not unscrew them entirely.

Bolts are weakened, the scanner is connected, - Lyhukh! - Include a four-wheel drive with one finger movement and the lid is neatly extruded with pressure from the gearbox. Quickly, clean, neatly! Moving on.

Go to the bolt in the drain hole. Remove it and get rid of the old oil with impurities unworthy. We wait for the cessation of a self-shot: the oil will flow like from drain plugand from the hole where the filter is located.

Now you can safely unscrew the bolts, remove the lid and pull out the filter.

So close-up looks like a filter with a rider of 53,000 mileage. In oil there are truly wear particles.

Install new filter On the place put it and close the lid.

To get a guaranteed result from the procedure only use original oil from the manufacturer. We share the serial number of the oil, we do not feel sorry.

We restrict ourselves to the consideration of devices haldex couplings 4 and 5 generations.

The first started on the modular tiguan platform and used on all initially front-wheel drive models concern Vag. (from Transporter T5 to Audi TT) to implement the full drive. Later, somewhere in 2010, were replaced by the following - the fifth generation.

How it works

The moment is transmitted from the transmission through disposal box And the cardan transfer to the rear axle is always moving, but comes to the wheels only as needed. There is a complete drive clutch between the rear axle reducer and the cardan transmission.

In fact, the mechanism is extremely simple. The electronic full-wheel drive control unit integrated into the coupling housing, along the digital CAN bus signals receives information about the operation (from the motor unit - about the state of the gas and load pedal status, from ABS - about the speed of rotation of each wheel (you need to know, When the back axle slip will begin), when automatic box - also about the transmission included). According to the results of the processing of these signals, a decision is made to suggest a clutch, that is, how much of the cardan Transmission The moment to transfer the rear wheels.

In the coupling itself there is a multi-disc wet clutch (like clutches in an automatic box or even the coupling of motorcycles), it is clamped with a hydraulic cylinder with a different signal over the signal from the full-wheel drive control unit, that is, it can work with a full or partial slip or completely closed. The hydraulic fluid is always under pressure, the injected pump, the valve is regulated by the piston force.

As you can see, the device is extremely simple and quite reliable.

The device of couplings 4 and 5 generations are quite similar. In the 8 generation couplings to the hydraulic highway, a filter was built-in, which seems more logical solution. The fact is that the hydraulic fluid, which is transmitted to the piston force for closing a multi-disc clutch, is simultaneously a liquid in which the friction discs of the same coupling clutch are floating, smoothing slippages, providing acceptable temperature characteristics of the work.

In this place and the most common malfunction is lighted. The products of the wear of the clutch friction material will certainly appear in the hydraulic fluid over time and can cause the failure of the injection pump.

Remember, we said that in 4 generation couplings was an additional filter, and in 5 it was not? The manufacturer noted the change of design and the change of service regulations:

Such a replacement is designed to extend the service life of the pump.

From myself I will add that even in 5 generation it is worth changing the oil also about once in 60000km.

Please do not forget about frequent mistake of masters who work without ELSA. In the rear axle reducer two separate cranks: for the reverse bridge differential - there is normal transmission fluid For the entire service life of the car, for the coupling rear drive. Fluids are not mixed, the plugs are constructively nearby, confuse and do it is extremely simple. Make sure the person came to your car, who understands what he does.

The yield of the pump is marked by a deterioration in the passability, but not the fact that the mistake declares itself. The machine can not control the result of the closure of the coupling, except for the wheel rotation speed sensors on the rear axle in the ABS block. In the coupling itself there is only a temperature and pressure sensor of the hydraulic fluid (overheating, by the way, it may cause a short-term limit of the transfer of the moment on the rear axle - an unpleasant surprise when moving off-road). Well, at least the most frequent malfunction - the yield of the pump is out of order - just make a car front-wheel drive without any serious consequences.

ELSA provides various procedures for checking closures / opening the coupling depending on its generation and car. All functional checks are made using diagnostic equipment.

From the practice, we once saw when the coupling was shrouded in a closed state and the moment was constantly shared between the front and rear axis in half. The car bounced internal wheels In turns. At the insistence of the client, we removed the cardan and turned the car into the front-wheel drive. The reasons for such a breakdown we did not know. We think so so far the car and rides.

For the sake of justice, it should be noted that most of these machines are completely driven by these machines. Failures and mass breakage do not have.

Simple and without fanaticism every 60000 km, change the hydraulic fluid in the coupling. If there is a filter (4 generation of Haldex), then it is also. Everything will work - simple design.

More and more modern vehicles Equipped with special couplings of the full drive, which are name Haldex. They help correctly distribute the torque on the wheels. Such a coupling is equipped with electric drive, and it is constructively located in the Carter the main transfer (reverse).

Haldex coupling helps to optimize pressure due to hydraulic system - She is very comfortable to control even in difficult conditions. Constantly working reverse gear - Another feature of this kind of design. She is dominated by NAD brake systemas well as above aBS systems and ESP.

Coupling - one of the most important structural elements automotive system, the absence of which affects not only on the quality of the ride, but also poses the question of its possibility. Replacement oil fluid in different constructive elements – required condition Proper vehicle service.

The lubricant coupling is very important for its proper functioning. It helps to lubricate details that rub each other, reducing their wear. You should change the lubricant inside the system every 60,000 mileage kilometers, but if the car is operated in heavy conditions And, moreover, very intensively, it is necessary to make a replacement earlier. Replacing the oil in the Haldex system on Tiguan can be carried out on its own under the compliance of the basic rules.

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

Input and slave shaft;
Friction discs;
Working piston;
Axial piston pump;
Disk cam;
Drive head.

When the car is running with one wheel, the design of the slave and the drive shaft is formed in the design, as a result of which the element of the cam washer begins to enter the piston. During reciprocal work, in which the piston is involved, the pressure of the lubricant increases, as a result of which the shafts are compressed and engaged.

The coupling itself has an electric drive control, which consists of sensors, electronic block and special executive devices. temperature sensor oil lubricant is input.

The control unit may convert an impact on the actuator into the information that the electroblock subsequently uses. Executive devices are a special valve that regulates the compression of the disks, and the battery is associated with the pump with the pump. superior pressure Oil.

Benefits

The system of the system will be correctly set only with due service and timely replacement of lubrication. Observing these conditions, it is possible to extend its operational period for a long time. First of all, it is necessary to regularly monitor the level lubricant. It is also necessary to carefully control the leaks, and the lubricant is replaced only with the filter.

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

The advantage of the front drive is saved;
No too high voltage in transmissions during maneuvers;
Lack of sensitivity at different tires;
Constant sensation of a full drive;
Opportunity electronic control system.

Replacing lubricant Coupling Haldex: features and stages of work

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

It is necessary to trace that the purchased materials have high quality, therefore it is not necessary to purchase oil in dubious places and at an too low price. For fluid change, you will need:

Capacity for the drain of the spent oil composition - the old oil will merge in it;
A set of necessary keys;
Rag;
Protective gloves and glasses;
Pliers;
Lighting device;
Syringe with a tube for a neat fill of a new liquid into the hole.

Replacing the oil in the Haldex couphe in Tiguan is made without special difficulties, so such a procedure is under the power of each person, even to someone who has no special skills.

Important moment: During the change of oil, you need to carefully monitor so that the couplings of the couplings and the rear axle are not confused - this error can hardly harm the car.

First of all, it is necessary to drain the spent fluid. To do this, we need to substitute a pre-prepared container under the drain hole, reloading its plug;
Making sure that the remnant fluid is completely removed, it is necessary to unscrew the upper tube, after which the lower can be returned to the place;
Next, you need to dial a new lubricant into the syringe and pour oil through the bay hole until it is poured through the edge.
Final stage - you need to wipe the blurred elements and screw the hole with a plug. After that, you can carry out a trial trip.

Conclusion

Replacing the oil in the couphe - the occupation is useful and pretty simple. It helps to improve performance features both couplings and the whole car as a whole. The coupling helps to improve automotive characteristics Only in the case of timely replacement of lubricants. Regular shift and control of the level of oil lubricant in the Haldex coupheus will save from unpleasant surprises and will help her for a long time and regularly serve.

Original Coupling OilHaldex 2nd 4th and fifth generation.

Article: G 055 175 A2

Capacity: 1l / 1000 ml (for replacement without washing enough single package)

Archive number: G055175A1 and G060175A2

Haldex coupling The fourth generation applies on these cars of the concernVAG GROUP. released before 04.11.2013:

Audi A1 8X.
Audi A3 / S3 / RS3 8P since 2010.
Audi A3 / S3 / RS3 8V
Audi Q3 / RSQ3 8U
Audi TT 8J since 2010
Seat Alhambra from 2011
Seat Altea Freetrack from 02.03.2010.
Skoda Octavia 1Z FL
Skoda Superb 3T.
Skoda Yeti.
VW TRANSPORTER / CARAVELLE / MULTIVAN T5 T5 +since 2010
VW Passat B7.
VW Passat CC.
VW Golf VI
Tiguan 5 N.

Haldex pump number: / Archive number: 0ay598549

The oil change regulations set as an official dealer is 60,000 km. Constructively, the mechanism has a filter element, but the concernVAG GROUP. separately as spare part he does not offer what makes the resource of the pumpHaldex limited and it fails on mileage 100-120 thousand km. For longer operation of the pump, it is recommended to replace the oil every 30,000 km and the replacement together with the filmer every 60,000 km.

On cars Volvo. Sets a similar coupling Haldex fourth generationBut for it there is a filter in the form of a separate spare part. To replace it, you will need to unscrew two bolts of the regular filter cover. Next with softwareVAG - COM. it is necessary to start the test of the performers - "Pumping the coupling pumpHaldex ", Either on the installed car, turn on the transmission for a few seconds. After these manipulations, the sealing cover will be pulled out, then it must be accurately removed (as a separate spare part it is not supplied). The next step is removed by the filter and is replaced by a new, the old oil merges and the new one is poured. After all operations, you need to start a car and give it to work on the transfer, after which it is to add oil to the control opening (plug-in tube).

It is also recommended to remove the coupling pump.Haldex for cleaning its mesh oil worker. Often it accumulates the clutch products of the coupling products, which adversely affects it. throughput And accordingly reduces the resource.

Articles for order:

Filter coupling Haldex 4 generation for VW Audi Skoda Seat "Volvo" -

If necessary:

Haldex coupling The fifth generation is applied on cars issuedc 05.11.2013:

Audi A1.
AUDI A3 / S3 / RS3 / 8V
Audi Q3 RSQ3 8U
SEAT LEON III.
Seat Alhambra 7N.
Skoda Octavia A7.
Skoda Yeti.
Skoda Superb 3.
Volkswagen Golf 7.
Volkswagen Tiguan.
Volkswagen Sharan 7N.
Volkswagen Passat B8.
Volkswagen Transporter / Caravelle / Multivan T6

Haldex pump number:

5 generation of full drive couplingHaldex it does not have a filter element in the system, which undoubtedly reduces its resource in working conditions in friction sediments. Oil replacement regulations once every 3 years established official dealer will lead to the replacement of the pump on a run of 80-100 thousand km., depending on the style of driving. To extend the duration of the pump, it is recommended to replace the clutch oilHaldex once at 25-30,000 km. With the removal of the pump for washing the filter of coarse cleaning (grid) of the oil worker. If when replacing the liquid has a very dark color Or there is a pronounced precipitate, it is recommended to replace the oil in the Haldex couphe after 500-1000 km. Run.

For replacement, only oil is necessary.

If necessary:

Cork with a filling ring -

Cork with a decaling ring -

Pump sealing rings (2pcs kit) -

Haldex coupling The second generation is applied on the data of the concern cars.VAG GROUP:

Audi A3 S3 8P
Audi TT 8J.
Seat Altea Freetrack until 01.03.2010. release
Skoda Octavia until 2008
VW Passat B. 6 to 30.06.2008 release
VW Golf V.

Haldex pump number: / Archive number: 0AV598549

VW TRANSPORTER / CARAVELLE / MULTIVAN T5until 2010

Article Pump Haldex: / Archive number: 02W598549

Replacing the oil in the coupling is required every 30,000 km., Every 60,000 km. The replacement is made with the filter element.

Articles for order:

Haldex Couplings Filter -

If necessary:

Cork with a filling ring -

Cork with a decaling ring -
Pump sealing rings (2pcs kit) -

Pump sealing rings (2pcs) for T5 -

Variants of the cost and delivery period of this spare part:

Prices for spare parts G055175A2, analogues and replacements:

Manufacturer:	Room:	Name:	Delivery time:	Price:
G 055175A2.	G055175A2.	Oil with high exploitation.	5 - 7 days.	2100 rub.	buy
Vag.	G055175A2.	Haldex oil	0 - 2 days.	2300 rub.	buy
Vag.	G055175A2.	Haldex oil	5 - 14 days.	2300 rub.

The oil in the coupling plays a very important role. It lubricates the details and requires replacement after 60,000 km of the car. But in the event that the machine is operated with elevated loads and mainly on off-road, the oil replacement is recommended earlier. Replacing lubricant in the coupling with your own hands a completely simple procedure.

Coupling and the principle of her work

The mechanical part consists of:

Input shaft.
Axial piston pump.
Working piston.
Slave shaft.
Drive head.
Disk cam.
Friction discs.

In the case of slipping the same wheel, the car occurs on the machine in rotation of the master, as well as the slave shaft, thereby entering the piston or the omitting part of the cam washer. With reciprocating work of the piston in the hydraulic system, an increase in the pressure of the lubricant liquid occurs.
After that, the set of discs is compressing between the shafts, and then the engagement.

The hydraulic part consists of:

Electronasus.
Oil filter.
Point valve.
Inlet valve.
Pressure regulator with adjustable valve.
Safety triggering valve.
Hydroaccumulator.

In order for the entire system to work quickly, the electronasus of feeding starts its rotation at 400 revolutions per minute, thereby pump pressure up to 4 kgf / cm2. The feeding pressure is maintained by a hydroaccumulator, thereby affecting the surface of the piston of the electric pump, as well as the piston itself.

The advantage is the fact that the piston comes into contact with the cam wrist on the one hand. And the other side, with the help of the pressure of the backpage, eliminates the gap on the friction disc set.
The hydroaccumulator, in addition to maintaining pressure, performs another important task - aligns incoming fluctuations in pressure. When the pressure on the feeding line does not occur, the spring on the battery is omitted. And through the battery itself, the lubricant is not reset from the entire highway. Wherein high blood pressure It does not occur on the highway due to the reversal of the lubricating fluid through the battery to the tank of the grease collection itself. When the pressure decreases, in this case the spring is squeezed, and reduces, or completely stops throwing the lubricant into the container.

That car: plums and fill of lubricating fluid from a device that connects the grinding shafts

The coupling is controlled by electronics, which includes input sensors, and then actuators and the electronic unit. The input is the temperature sensor of the lubricating fluid.

The control unit converts control effects on the actuator into the input information. In addition to the temperature sensor, the lubricating fluid, the electroble uses the transmitted information from the control of the engine block and the ABS control unit, which is obtained by the CAN bus.

The control system of the executive control device is the valve that adjusts the compressive pressure friction discs From 0% to 100% maximum value. In this case, the pump and the battery provide support for the pressure of the lubricating fluid in the 3 MPa system.

Coupling lubrication system and its maintenance

During the work of the coupling requires attention and timely service. If you observe completely simple maintenance, the coupling will serve for a very long time.

Need to follow the lubrication level. Also inspect the clutch on leak fluid.
Replacing the lubricating fluid and filter should be made in a timely manner.

Advantages of Haldex Coupling

The dignity of the front drive is preserved.
In transmissions, there is no high voltage during maneuvering and parking.
No sensitivity occurs in the presence of different tires.
There are no restrictions when towing with a suspended axis.
Unlimited combination with other ABS, EDS, ASR, ESP systems.
All-wheel drive is constantly carried out, as well as electronic control of the coupling itself.

Preparatory work and operations

The main thing is to prepare all the tools that will be required for work, as well as buy oil and filter. Oil must be bought G055175A2. It is consumed within 650 ml, so it is advisable to buy a liter. Oil, as well as a filter, you need to buy high Qualitybecause from this coupling will last more. It is not worth buying too cheap oil, as it may not be very good for quality.

List of necessary tools:

A small vessel where the drained fluid drain will occur.
Keys to unscrew the drain and fuel plug.
The key for unscrewing the lid under which the filter is located.
Pliers.
Portable lamp or flashlight.
Latex gloves.
Rag.
Protective glasses.
Stockbuby syringe with a tube for pouring a lubricating fluid in the Haldex coupling.

Replacement process

Drain of exhaust engine oil and removing the old filter

Installing a new filter in Haldex coupling

The old filter must be thrown out, as it is not suitable for further operation. You must always install only new.

Bay of oil in the coupling

How to easily and quickly change lubricating liquid in the car?

This article will help to replace the lubricant with their own hands without resorting to the help of a hundred, thereby saving money, as well as its time. And most importantly, you can execute this operation on the replacement of lubrication and all the same time to change the oil without any problems.

And a little about the secrets of the author

My life is not only connected with the car, namely repair and maintenance. But also I have a hobby like all men. My hobby is fishing.

I started a personal blog in which I share my experience. Many things try, various methods and methods for increasing the catch. If interested, you can read. Nothing superfluous, only my personal experience.

ATTENTION, only today!