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
      12.3.1. Check of wear of brake shoes
      12.3.2. Check of a condition of hydraulic system
      12.3.3. Check of level of liquid in a feeding tank
      12.3.4. Replacement of brake liquid
   + 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>> Maintenance>> Replacement of brake liquid
Through a time of brake hoses and a ventilating opening brake liquid adsorbs moisture from air therefore the boiling point of brake liquid goes down. At intensive operation of brakes there is a probability of emergence of steam jams in brake system that considerably will worsen work of brakes.
Replacement of brake liquid is necessary for carrying out every two years.
Replacement of brake liquid carry out in the following order:
cнимите a cover from a tank and, using a syringe, pump out brake liquid from a tank of the main brake cylinder, thus level of the brake liquid which has remained in a tank, should make 10 mm;

In order to avoid air hit in brake system do not pump out brake liquid completely.

add in a tank new brake liquid to the mark «Мax»;
remove a dustproof cap from the valve of pumping of the wheel cylinder of a back right wheel, clear it and put on it the pure transparent hose which other end lower in the capacity which has been partially filled with brake liquid. The capacity should be at least on 300 mm above the pumping valve. Thanks to it air hit in the cylinder through a valve carving is prevented;
unscrew on some turns the union of pumping and 10 times press a brake pedal against the stop;

Press a pedal until pure brake liquid will not start to follow from a tube.

twirl the valve of pumping and add in a tank fresh brake liquid;
similarly replace brake liquid in pipelines and brake mechanisms of other wheels.
On cars with a hydraulic drive of coupling the tank of the main brake cylinder at the same time carries out function and a tank of a hydraulic actuator of coupling therefore at replacement of brake liquid also it is recommended to replace liquid in a coupling drive.