VW Passat repair


+ 1. Ekspluatatsiiya of the car
+ 2. Maintenance
+ 3. Engines
+ 4. Cooling system
+ 5. Power supply system
+ 6. Ignition system
+ 7. Coupling
+ 8. Transmission
+ 9. Drive of forward wheels
+ 10. Suspension brackets
+ 11. Steering
- 12. Brake system
   12.1. Technical characteristics
   12.2. General information
   + 12.3. Maintenance
   - 12.4. Replacement of forward brake shoes
      12.4.1. Brake VW mechanism
      12.4.2. Brake Girling mechanism
   12.5. Replacement of a forward support
   12.6. Replacement of a forward brake disk
   12.7. Replacement of a brake drum and back brake shoes on brakes of drum-type type
   12.8. Wheel cylinder of the back brake mechanism
   12.9. Replacement of brake shoes on back disk brakes
   12.10. Replacement of a support of the back brake mechanism
   12.11. Pressure regulator
   12.12. Main brake cylinder
   12.13. Tubes and hoses of brake system
   12.14. Air removal from a hydraulic actuator of brake system
   + 12.15. Anti-blocking system of brakes (ABS)
   12.16. Brake pedal
   12.17. Lever of the parking brake
   12.18. Cables of the parking brake
   12.19. Adjustment of the parking brake
   12.20. Vacuum amplifier of brakes
   12.21. Stoplight switch
   12.22. Elimination of noise of brakes
+ 13. Wheels and tires
+ 14. Systems of heating, ventilation and conditioning
+ 15. Electric equipment
+ 16. Body
+ 17. Electric circuits


Repair B3-B4/Passat B3-B4 Volkswagen Passat>> Brake system>> Replacement of forward brake shoes>> Brake VW mechanism

Fig. 12.3. Forward brake VW mechanism: 1 — a bolt; 2 — a protective plate; 3 — a brake disk; 4 — a bolt of fastening of a brake disk; 5 — the holder of a support; 6 — a bolt; 7 — springs of fixing of brake shoes; 8 — brake shoes; 9 — a protective cover; 10 — a sealing ring of the piston; 11 — a support; 12 — the plug; 13 — the plug; 14 — laying; 15 — a bolt of fastening of a directing finger; 16 — the pumping union; 17 — a cap


Removal of forward brake shoes carry out in the following order:
weaken bolts of fastening of a forward wheel, will hang out a forward part of the car and fix on supports. Unscrew bolts of fastening of a wheel and remove a wheel;

       NOTE
Surely make replacement of all blocks of one axis of the car even if the limit of wear were reached by only one block. If blocks are repeatedly established, before removal they are necessary for marking.

unscrew two bolts of fastening of a support to the holder of a support. Pay attention that bolts of fastening of a support самоконтрящиеся and have various length;
disconnect the holder of a brake hose from a rotary fist;
take a support from the holder of a support and a wire tie up a support to a forward suspension bracket;

       PREVENTION
Do not involve for support fastening to a suspension bracket a brake hose. Watch that the brake hose did not stretch and it was not overwound.

remove spring clamps of brake shoes;
take brake shoes.
Installation of forward brake shoes carry out in the following order:
clear a support and the piston of a dust and dirt;
press the piston into a support. It can be made a wooden core or the hammer handle. Track, that the piston had no distortion and its surface, as well as a boot surface, had no damages.

       PREVENTION
At piston installation brake liquid is forced out from the brake cylinder in a broad tank. Therefore it is necessary to supervise liquid level in a tank and if necessary a syringe to select from a tank a small amount of liquid.

At the maximum wear of brake shoes check ease and smoothness of moving of the piston. For this purpose insert into a support wooden whetstone and ask the assistant to press a brake pedal smoothly. The piston should easily and to leave a support smoothly.
Surely replace spring clamps of brake shoes. Spring clamps establish the short party inside.
establish in the holder of a support the bottom spring clamp of brake shoes. Put the top spring clamp and insert in the holder of a support sideways over clamps an internal brake shoe. The internal brake shoe has a smaller surface of a slip.
establish an external brake shoe;

       PREVENTION
At stronger pressing of a support to the holder, spring clamps of brake shoes that can lead to emergence of noise in the brake mechanism are deformed.

establish a support in the holder of a support and press it so that it was possible to screw in fastening bolts;
establish bolts and tighten them the demanded moment. Longer bolts are usually established from above;
fix the holder of a brake hose on a rotary fist;
repeat operation on an opposite wheel;
check level of brake liquid in a tank. Level should not exceed «Max» mark. Several times press a brake pedal in order that blocks nestled on a disk, and repeatedly check level of brake liquid in a tank;
establish wheels and lower the car.