Audi A3

since 1997 of release

Repair and car operation

Audi A3
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
+ the Power supply system and production of the fulfilled gases
+ engine Electric equipment
+ Manual box of gear shifting
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
- Brake system
   Replacement of forward brake shoes
   Removal and installation of disk brake mechanisms of back wheels
   Check of thickness of a brake disk
   Removal and installation of a brake disk/support
   Adjustment of the parking brake
   Brake liquid
   Air removal from brake system
   Removal and installation of a brake hose
   Check of the amplifier of a brake
   Removal, installation and adjustment of the switch of a stoplight
   Removal and installation of the lever and cable of the parking brake
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Elektroskhema


Check of the amplifier of a brake


The amplifier of a brake it is necessary to check, if for achievement of sufficient effort of braking the application of very big effort to a pedal is demanded.

1. Press a brake pedal at the standing car not less than 5 times. Then at the pressed pedal start the engine. Now the pedal should be felt under a foot.
2. Otherwise disconnect a vacuum hose at the amplifier of a brake and start the engine. Put a finger by the end of a vacuum hose and check, whether there is a vacuum.
3. If the vacuum is not present: Check tightness of a hose. If necessary replace it. Tighten fastenings of all collars.
4. If the vacuum is available: Measure value of vacuum. If necessary replace the amplifier (work HUNDRED).