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
   Check of level of cooling liquid
   Frost resistance check
   Check of the cooling system on tightness
   Carving cover of a broad tank
   List of malfunctions
   Water pump
   Maple belt of the water pump
   Cooling system fan
   Malfunctions of the fan of the cooling system
   List of malfunctions
+ 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

Maple belt of the water pump

The drive of the water pump 5-and the 6-cylinder engine is provided with a gear belt – here can get off nothing. On another on models with the 4-cylinder engine: this engine cannot be operated without maple belt and by that without water pump! Otherwise the most serious damages of the engine are possible.

Cold water is heavier, than hot, and therefore it can slowly circulate on the engine and a radiator and without water pump. However this thermosiphon cooling, modern engines have not enough. In more detail a maple belt it is written in the section Generator.