Audi 80/Avant (B4)

since 1991-1995 release

Repair and operation of the car



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
+ System of injection
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
+ Body electrical system
+ System of ignition
+ Lighting
+ Signaling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
- Specifications
   Engine
   Cooling system
   Fuel supply system
   Fuel supply systems (continuation)
   Transmission
   Chassis
   Brake system
   Electrical system
   Filling volumes (in liters)
   Dimensions
   Plan of servicing





Brake system

The brake system with pedal
drive in front
Cars
with 4-and 5-cylinder engines
One-piston brake
the mechanism with a floating bracket,
the ventilated brake disks
with the 85 kW engines and above, and also with the 66 kW engine with AKP
with 6-cylinder engines
The two-piston brake mechanism with a floating bracket, the ventilated brake disks
Diameter of brake disks, mm
256
276
Thickness of brake disks new / minimum, mm
13/11
25/23
the ventilated disks: 22/20
Thickness of frictional slips
new / at least 14/2 (without plate holder)
13/2 (without plate holder)
Drum brake mechanisms behind
drum brake mechanisms with internal blocks with automatic adjustment, Simplex
(only the cars with the 66 kW engine released to 10/92, equipped with the check point without ABS)
Diameter of the brake drum
new / minimum, mm
230/231
Thickness of frictional overlays of, at least, a mm
2,5 (without brake shoe)
Disk brake mechanisms behind
One-piston brake mechanisms with the automatic adjusting device for the brake mechanism of the parking brake system
Diameter of brake disks, mm
245
Thickness of brake disks
new / minimum, mm
10/8
Thickness of frictional slips new / at least
12/2 (without plate holder)







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