Audi A3

Since 1997 of release

Repair and car operation

Audi A3
+ The maintenance instruction
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ The power supply system and release of the fulfilled gases
+ Engine electric equipment
+ Manual box of a gear change
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
- Brake system
   Replacement of lobbies brake колодок
   Removal and installation of disk brake mechanisms of back wheels
   Check of a thickness of a brake disk
   Removal and installation of a brake disk/support
   Adjustment of a lay brake
   Brake liquid
   Removal of air 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 a lay brake
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Electroschemes

Check of a thickness of a brake disk


1. Mark a paint position of wheels concerning a nave. It will allow to establish at assemblage отбалансированное a wheel in its former position. Loosen the bolts of fastening of a wheel on the car standing on the earth. Lift the car and establish it on supports. Remove wheels.
2. It is necessary to measure a thickness of a brake disk always in the most thin place. HUNDRED apply for this purpose a special calliper or micrometric скобу as as a result of deterioration of a brake disk the fillet is formed. It is possible to measure a thickness of a brake disk by means of a usual calliper. For this purpose on each party of a disk it is necessary to enclose a corresponding thickness a lining (for example, a coin). Then it is necessary to subtract a thickness of linings from the value received as a result of measurement.


It is necessary to measure a thickness of a disk in several points.

3. The sizes of brake disks are resulted in Specifications.
4. At achievement of a limit of deterioration it is necessary to replace a disk.
5. In the presence of the big cracks or задиров more a disk it is necessary to replace than 0.5 mm with depth.
6. Establish wheels so that the marks put at removal of wheels have coincided. Wrap bolts of fastening of wheels. Lower the car on wheels. Tighten fastening bolts cross-wise the moment 120 Н•м. To grease bolts of fastening of wheels does not follow.

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