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



Disk brake mechanisms

Together with a forward wheel in air stream the steel disk rotates. It седловидно is covered by a so-called support of the disk brake mechanism. By pressing a pedal of a brake pistons press brake Pads to disks – there is a braking process.

For achievement of higher forces operating on brake колодку, model Audi 80 with the 6-cylinder engine is equipped by two brake cylinders on a support.

The stream of air running at movement constantly cools the disk brake mechanism. Additional cooling of forward disk brake mechanisms is provided at the models equipped with engines by capacity of 85 kw and more, but also at models with the engine capacity of 66 kw in a combination to an automatic transmission: on a disk of the brake mechanism there are big dredging which grasp air, thereby improving cooling.

The design of disk brake mechanisms of forward wheels Аudi 80 and (there where they are established) back wheels has so-called floating скобу. The support of the brake mechanism looks as the clenched fist. The brake cylinder with the piston presses внутренную колодку to a brake disk because of what the cylinder case moves ahead on directing and presses brake колодку to a brake disk on other party.

Disk brakes at damp weather

At a constant rain the located openly brake disks are plentifully moistened, and as consequence of it brake influence attacks a fraction of a second later. The moisture between brake disks and brake колодками should evaporate at first. In the winter when salt is actively used, this effect is shown even more strongly because got on brake Pads and disks salt at braking at first should be erased from them.





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