Audi 80/Avant (B4)

Since 1991-1995 of release

Repair and car operation



Audi 80/Avant
+ The description
+ Engines
+ System of release of the fulfilled gases
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and воздухозаборные channels
+ Injection system
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
- Brake system
   Check of brake mechanisms
   Brake liquid
   Check of level of a brake liquid
   Check of tightness of brake system
   Replacement of a brake liquid
   Disk brake mechanisms
   Measurement of a thickness колодок the disk mechanism
   The control of a condition of brake disks
   Replacement колодок disk brake mechanisms
   The drum-type brake mechanism
   Measurement brake колодок the drum-type mechanism
   Check of a course of a pedal of a brake
   The disk brake mechanism of back wheels
   Measurement of a thickness колодок back disk brakes
   Check of a free wheeling of the lever of a lay brake
   The main brake cylinder
   The amplifier of brakes
   Check of the amplifier of brakes
   Regulator of brake forces
   Repair of a hydraulic drive of brakes
   Prorolling of brake system
   The list of malfunctions
+ Antiblocking system of brakes
+ Wheels and tyres
+ Kuzovnaja electrosystem
+ Ignition system
+ Illumination
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications



The list of malfunctions

Malfunction
Its reason
Than to help
A.Avtomobil at braking withdraws aside 1. Non-uniform pressure in tyres
2. A non-uniform profile of tyres
3. Brake Pads have become covered by a dirt, were made oily or have non-uniformly worn out
4. Directing to a support of the disk brake mechanism are covered by a dirt or have rusted
5. Приржавел the piston in a support of the disk brake mechanism or in the wheel brake cylinder
6. Brake Pads incorrectly adjoin to a drum
7. Brake disks have scratches or too thin
8. The deformed brake drums
9. The inflated brake hoses
To modify on cold tyres
To replace tyres
To replace Pads
To clear

To clear of a rust or to replace


To check up, if necessary to establish new brake Pads

To replace brake disks

To process on a lathe or to replace

To replace hoses

V.Tormoza creak 1. Are picked incorrectly up Pads
2. A dust and a dirt on disk brake mechanisms or in drum-type brake mechanisms
3. See And 4, 5, 7 and 8
To establish original Pads
To remove Pads, to remove pollution
S.Tormoza knock and are blocked 1. See And 5
2. Acting rivets of linings
3. See And 8
4. Too weak returnable springs brake колодок
5. Palpation of a brake disk
To replace

To replace

To replace
To replace

D. One or all wheel brake mechanisms strongly heat up 1. The compensatory aperture in the main brake cylinder is hammered
2. Is not present люфта between a brake pedal (a press bar) and the piston of the main brake cylinder
3. The rusted supports of the disk brake mechanism
4. The lay brake is not disconnected completely
5. The returnable spring (the drum-type brake mechanism) is broken
To clean

To establish


To give to repair

To check up cables of a brake drive and brake mechanisms of back wheels
To replace

E.Slishkom the big course of a pedal of a brake, a pedal is pressed softly and springs 1. Air in brake system
2. Негерметичность in brake system
3. The faulty main brake cylinder
4. At strong loading on brake system (overheat) formation of vials of steam in too old brake liquid
5. See And 5
To remove air from brake system
To inspect on tightness
To replace
To replace a brake liquid
F. An ill effect of brakes at the big effort to a pedal 1. A normal course of a pedal: Pads are covered by oil or have glazed over
2. A short course of a pedal: the amplifier of a brake drive is faulty
3. A long course of a pedal: one brake contour does not work because of негерметичности
To replace

To check up

To check up, replace the damaged details

G. The lay brake operates односторонне or is too weak 1. The description see under And
2. The rusted cable of a brake drive
3. The adjusting mechanism is faulty
To replace
To check up