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>> Check of a condition of hydraulic system

Fig. 12.1. Hydraulic scheme of brakes: 1–right forward support; 2–tank of the main brake cylinder; 3–vacuum amplifier of brakes; 4–to the right back brake cylinder; 5–to the left back brake cylinder; 6–brake pedal; 7–left forward support; 8–main brake cylinder


Check of a condition of hydraulic system carry out in the following order (fig. 12.1) :
will hang out the car and remove all wheels;
check brake tubes and hoses on tightness, damages and corrosion;
check flexible brake hoses on existence of cracks and attritions. For detection of possible damages bend a brake hose a hand in different directions;

       PREVENTION
Brake tubes for protection against corrosion are covered with a plastic layer. At damage of this layer the intensive korrodirovaniye of tubes begins. In this regard do not apply to cleaning of brake tubes metal brushes and other tool which can damage a plastic covering.

be convinced that brake hoses are not overwound and do not concern body or suspension bracket panels for what turn a steering wheel of the car against the stop in one and other parties and visually check the situation occupied by brake hoses;
check the main brake cylinder, a pressure regulator in brake system, brake mechanisms, working brake cylinders, and system of the hydraulic ABS modulator on tightness and damages;
check nuts and bolts on reliability of fastening;
places of connection of tubes and hoses should not be damp.