Audi 80/Avant (B4)

since 1991-1995 of release

Repair and car operation



Audi 80/Avant
+ Technical specification
+ Engines
+ System of production of the fulfilled gases
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and airintaking channels
+ injection System
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
- Brake system
   Check of brake mechanisms
   Brake liquid
   Check of level of brake liquid
   Check of tightness of brake system
   Replacement of brake liquid
   Disk brake mechanisms
   Measurement of thickness of blocks of the disk mechanism
   Control of a condition of brake disks
   Replacement of blocks of disk brake mechanisms
   Drum-type brake mechanism
   Measurement of brake shoes of the drum-type mechanism
   Check of a course of a pedal of a brake
   Disk brake mechanism of back wheels
   Measurement of thickness of blocks of back disk brakes
   Check of a free wheeling of the lever of the parking brake
   Main brake cylinder
   Amplifier of brakes
   Check of the amplifier of brakes
   Regulator of brake forces
   Repair of a hydraulic drive of brakes
   Pumping of brake system
   List of malfunctions
+ Anti-blocking system of brakes
+ Wheels and tires
+ Body electrosystem
+ ignition System
+ Lighting
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ body Elements
+ Search of malfunctions
+ Specifications





List of malfunctions

Malfunction
Its reason
Than to help
A.Avtomobil when braking withdraws aside 1. Non-uniform pressure in tires
2. Non-uniform profile of tires
3. Brake shoes became covered by dirt, were made oily or non-uniformly wore out
4. Directing in a support of the disk brake mechanism are covered with dirt or rusted
5. Prirzhavel the piston in a support of the disk brake mechanism or in the wheel brake cylinder
6. Brake shoes 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 tires
To replace tires
To replace blocks
To clear

To clear of a rust or to replace


To check, if necessary to establish new brake shoes

To replace brake disks

To process on the lathe or to replace

To replace hoses

V.Tormoza creak 1. Blocks are picked incorrectly up
2. A dust and dirt on disk brake mechanisms or in drum-type brake mechanisms
3. See. And 4, 5, 7 and 8
To establish original blocks
To remove blocks, to remove pollution
S.Tormoza knock and are blocked 1. See. And 5
2. Acting rivets of laying
3. See. And 8
4. Too weak returnable springs of brake shoes
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 opening 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 parking 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 cables of a brake drive and brake mechanisms of back wheels
To replace

E.Slishkom a big course of a pedal of a brake, a pedal is pressed softly and springs 1. Air in brake system
2. A leakage in brake system
3. Faulty main brake cylinder
4. At strong load of 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 brake liquid
F. Ill effect of brakes at big effort to a pedal 1. Normal course of a pedal: blocks are covered with oil or glazed over
2. Short course of a pedal: the amplifier of a brake drive is faulty
3. Long course of a pedal: one brake contour does not work because of a leakage
To replace

To check

To check, replace the damaged details

G. The parking brake operates unilaterally or too poorly 1. See the description under And
2. The rusted cable of a brake drive
3. The adjusting mechanism is faulty
To replace
To check