since 1997 of release

Repair and car operation

Foltsvagen Golf 4
+ 1. Maintenance instruction
+ 2. Engine
+ 3. Cooling system
+ 4. Fuel system
+ 5. Exhaust system
+ 6. Ventilation and heating system
+ 7. Coupling
+ 8. Transmission
+ 9. Suspension brackets and power shafts
+ 10. Steering
+ 11. Wheels and tires
- 12. Brake system
   12.1. Technical characteristics
   + 12.2. ABS/EBV/EDS/ASR/MSR
   + 12.3. Replacement of forward brake shoes on FS-III support
   + 12.4. Replacement of brake shoes on FN-3 support
   + 12.5. Replacement of back brake shoes on disk brakes
   + 12.6. Brake disk
   12.7. Adjustment of the hand brake
   + 12.8. Replacement of back brake shoes on drum-type brakes
   12.9. Removal and installation of the back working brake cylinder
   + 12.10. Pumping of hydraulic brake system
   12.11. Brake pipelines and hoses
   12.12. Check of the vacuum amplifier of brakes
   12.13. Removal, installation and adjustment of the switch of a stoplight
   12.14. Removal and installation of cables of the hand brake
   12.15. Main malfunctions of brakes
+ 13. Body
+ 14. Electric equipment and electroschemes

12.12. Check of the vacuum amplifier of brakes


The vacuum amplifier of brakes reduces effort on a brake pedal, facilitating thereby driving. Operation of the vacuum amplifier of brakes is based on depression use in an inlet collector. At an exit of the vacuum amplifier out of operation operability of brake system is not broken, but for pressing of a pedal of a brake it is necessary to make the bigger effort is considerable.

1. Press a brake pedal several times at the idle engine to create in cavities of the vacuum amplifier the identical pressure close to the atmospheric.
2. At the same time on the effort enclosed to a pedal, define, whether there is no jamming of the case of the valve.
3. Stop brake loops in the middle of its course and start the engine.
4. At the serviceable vacuum amplifier the brake pedal after start of the engine should leave forward.
5. If the pedal does not leave forward, check fastening of a tip of a hose, connection of fastening of a flange of a tip in the amplifier, a hose and union condition.
6. On cars with diesel engines check operability of the vacuum pump.