Audi 80/Avant (B4)



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 intake 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 pads the disk mechanism
   The control of a condition of brake disks
   Replacement pads disk brake mechanisms
   The drum-type brake mechanism
   Measurement brake pads 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 pads 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
body electrosystem
Ignition system
Illumination
Signalling devices
Devices and auxiliary devices
Heating and ventilation
Body elements
Search of malfunctions
Specifications




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The control of a condition of brake disks

If for condition check pads wheels simultaneously it is necessary to check up and a condition of brake disks are removed.

 PERFORMANCE ORDER

  1. On disks there should be no deep grooves (appeared as a result of influence of a dirt or strongly worn out pads). Otherwise these grooves deeply врежутся in new brake pads that will essentially reduce term of their service and, besides, will lower brake influence.
  2. The brake disks damaged by furrows can be processed on a lathe, in a case if they not истончились as a result of long service life till the minimum size (look the table below).
  3. It is necessary to replace too thin disks in pairs.
  4. The bluish shade of brake disks has no value.

The sizes of brake disks

Brake disks
Lobbies not ventilated
Lobbies ventilated (the one-piston brake mechanism)
Lobbies ventilated (the two-piston brake mechanism)
The back
Thickness of new disks
13 mm
22 mm
25 mm
10 mm
The minimum thickness
11 mm
20 mm
23 mm
8 mm