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
   12.5. 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>> Main brake cylinder

Fig. 12.21. Main brake cylinder: 1–a cover with the sensor of level of brake liquid; 2–contact socket; 3–laying;
4–tank; 5–return valve; 6–vacuum amplifier of brakes; 7–laying; 8–intermediate link; 9–laying; 10-fastening element; 11-nuts; 12-arm; 13-laying; 14-laying; 15-laying; 16-earring; 17-nut; 18-nut; 19-thermoprotective plate; 20-sealing ring; 21-pumping union; 22-main brake cylinder; 23-sealing plugs

Removal of the cylinder of the main brake cylinder (fig. 12.21) carry out in the following order:
cнимите an air inlet branch pipe between the air filter and the throttle case.
several times press a pedal of a brake to fill with air the vacuum amplifier of brakes, or to remove pressure in the hydraulic block of the servomotor.
cнимите a cover of a feeding tank of brake system and a syringe pump out brake liquid. Avoid hit of brake liquid on a paint and varnish covering of the car;
on cars with a hydraulic drive of coupling, disconnect a hose of giving of a food of coupling from a tank;
put labels on the brake tubes suitable to the main brake cylinder;
unscrew nuts of fastening of brake tubes and take away tubes in the parties from the main brake cylinder. Muffle the ends of tubes jams of the corresponding diameter;
unscrew nuts of fastening and remove the main brake cylinder from the vacuum amplifier of brakes together with laying.
Repair of the main brake cylinder. The main brake cylinder does not understand and in case of failure is subject to obligatory replacement.
Installation of the main brake cylinder carry out to sequences, return to removal, taking into account the following:
at installation of the main brake cylinder establish new laying;
remove air from hydraulic brake system;
tighten nuts of fastening of brake tubes the regulated moment: in case of pulling there is a probability of damage of a flange on the tube end.