Repair VW Sharan

. Diesel engines: 1,9 l TDI.
+ 1. Introduction
+ 2. Engine VR6
+ 3. The two-litre engine (ADY)
+ 4. System of greasing of the engine
+ 5. Cooling system
+ 6. System of injection of fuel of engine VR6
+ 7. System Simos of injection of fuel of the 2,0-litre engine
+ 8. Ignition system
+ 9. Coupling
+ 10. A mechanical 5-step transmission
+ 11. Shaft of a drive of wheels
+ 12. The steering hydraulic booster
+ 13. A forward suspension bracket
+ 14. A back suspension bracket
- 15. Brake system
   + 15.1. Adjustment of brake system
   + 15.2. Disk brakes of forward wheels
   - 15.3. Brakes of back wheels
      15.3.1. Check of a thickness of overlays brake колодок
      15.3.2. Replacement brake колодок
      15.3.3. Dismantling and assemblage of the brake mechanism of a back wheel
   15.4. Processing of brake disks
   + 15.5. The main brake cylinder
   15.6. Check of the vacuum amplifier of a brake drive
   15.7. Prorolling of brakes
   + 15.8. A lay brake
   + 15.9. System ABS (antiblocking brake system)
+ 16. An electric equipment
+ 17. The diesel engine
+ 18. System of greasing of the diesel engine
+ 19. System of cooling of the diesel engine
+ 20. The power supply system of the diesel engine and turbocharger
+ Maintenance service card
+ Specifications and characteristics
+ Electroschemes




Folksvagen Sharan/Sharan repair>> Brake system>> Brakes of back wheels>> Replacement brake колодок
The note
If it is planned to establish old brake колодки before their removal mark with a paint (a marker, a core) a relative positioning brake колодок in relation to supports that at installation not to mix internal and external brake колодки, and also a wheel on which they have been established.

Removal brake колодок back wheels spend in a following order:
- Slightly release bolts of fastening of back wheels;
- Mark with a paint (marker) a relative positioning of wheels, brake disks and naves of wheels;
- Lift a back part of the car, put it on a support, turn away bolts of fastening and remove back wheels;
- Remove the car from a lay brake. Disconnect a cable of a lay brake from a brake support;

Fig. 322. The Locations of bolts of fastening of a support are shown by arrows





- Turn out the top and bottom bolts of fastening (fig. 322) a brake support face шестигранным a key, holding thus from проворачивания thin рожковым with a key directing finger for it шестигранную a part;
- Remove a support, having moved it upwards and back, and tie up a wire to a spring of a back suspension bracket. A brake hose do not disconnect, do not overwind and leave in the tense condition;
- Remove brake колодки, preliminary having put on them labels (if they are used again).

The prevention
It is forbidden at removed brake колодках to press a brake pedal as it will lead to loss of the piston from the brake cylinder, вытеканию to a brake liquid and system depressurization.

Check of a technical condition of the brake mechanism spend before installation back brake колодок in a following order:
- Clear all details and attentively check up their condition;
- Check up a condition of a surface of the piston and the cylinder. At their deterioration, damage or strong корродировании replace the cylinder and the piston. From the case of the cylinder corrosion remove a wire brush;
- Carefully clear directing surfaces and installation sites колодок in an aperture of the case a soft metal brush and wipe the rags moistened in spirit (gasoline it is impossible to use). Do not use thus маслосодержащие solutions or sharp tools;

The prevention
All works on cleaning of brake mechanisms spend in protection frames of respiratory organs — respirators as the dust from brake колодок, allocated as a result of functioning of brake mechanisms, is unhealthy.

- Check up protective caps of directing fingers. The hardened and torn protective caps replace;
- Remove from working surfaces of brake disks oil and a dirt. On working surfaces teases, коробление are not supposed, deep risks and other damages from which deterioration of overlays increases or efficiency of braking decreases. Polishing or проточка a disk simultaneously from two parties is supposed, but thus both parties should be processed on identical depth, and the thickness of a back brake disk should not be less admissible;

The prevention
Brake disks with корродированной a brake surface are subject to replacement.

- Measure a real thickness of back brake disks and overlays brake колодок. Brake disks with dark blue or grey touch before installation new колодок clear;
- Check up, whether there are no cracks on a dustproof cap of the piston of the brake cylinder. The damaged dustproof cap replace, as the getting dust quickly will lead to leak of a brake liquid.
Installation brake колодок back wheels
On modern models Volkswagen pistons of the brake cylinder are modernised and now for return of the self-unscrewed piston (because of work of the adjusting mechanism) in the brake cylinder it is necessary to have special key VW3272. In the piston there are two grooves, located opposite each other in which the special key is established. If such key is not present, instead of it it is possible to use a steel strip in the width equal to diameter of the piston and the thickness, an equal thickness of grooves for screwing up.

The prevention
Unlike forward brakes to press pistons into brake cylinders by means of a clamp or the hammer handle it is impossible, as thus it is possible to damage the adjusting mechanism (the mechanism подводки brake колодок).

Installation - brake колодок spend in a following order:

Fig. 323. A reversing and вворачивание the piston in the brake cylinder special key VW3272. In a place shown by an arrow And, it is possible to put on and a wrench 13 mm





- By means of special key VW3272 (fig. 323) screw the piston in the brake cylinder clockwise.

The note
Before ввертыванием the piston pump out from a tank a siphon-pear a liquid part not to admit it выплескивания from a tank.

The prevention
The brake liquid is poisonous, destroys a paint and varnish covering and accelerates processes of corrosion of metals! At all do not pump out a brake liquid a mouth through a hose, and use for this purpose a siphon-pear. A brake liquid merge in a bottle which should be used only for a brake liquid.

- Establish brake колодки. Probably, thus it is necessary to screw the piston on the big size;

The note
Before support installation into position, check up correctness of installation brake колодок.

- Establish a support on a brake disk, into position, fix its new self-stopped bolts and turn their moment of an inhaling 35 Нм. If new bolts use them are enclosed to repair complete set Volkswagen;
- Connect a cable of a lay brake to a brake support and adjust a lay brake (item 15.1.2 see);
- Some times strongly press a brake pedal, yet will not feel strong counteraction. Thus brake колодки will occupy the working position and will provide good прилегание to a brake disk;
- Pump over brake system if it is necessary;
- Establish and temporarily fix (by hand) bolts of fastening of wheels;
- Lower the car and tighten bolts of fastening of wheels cross-wise;
- Check up connections on tightness. Podtekanie liquids it is not supposed;
- Check up level of a brake liquid in a compensatory tank and restore it to demanded level;
- Check up tightness of brake system on the working engine. For what press some times a pedal of a brake and keep it within several seconds. The pedal thus should not просаживаться.