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
+ Signalling 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

Brake system with the pedal drive in front	Cars
	with 4-and 5-cylinder engines The 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 firms
(only the cars with the 66 kW engine released to 10/92, equipped with a 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 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)