Audi 80/90/Coupe

since 1986-1991 release

Repair and operation of the car



Audi 80/90/Coupe
+ 1.2. Identification of the car
+ 2. Engines, carburetors
3. Lubrication system
+ 4. Cooling system
+ 5. Fuel system
+ 6. Exhaust system
+ 7. System of ignition
+ 8. Transmission
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. Steering
+ 12. Body, salon
+ 13. Air conditioning system
- 14. Electric equipment
   + 14.1.2. Thermoswitch, electronic thermoswitch
   + 14.2. Electrical wiring
   - 14.3. Electrical circuitries
      - 14.3.2. Cooling system
         14.3.2.1. Cooling fan thermoswitch
         14.3.2.2. Index of connections, points of grounding, connection of wires
      + 14.3.3. Engine electric equipment with multipoint injection
      + 14.3.4. Motronic engine electric equipment
      + 14.3.5. Electronic ignition
      + 14.3.6. Power supply
      + 14.3.7. Mechanism of blocking of differential (Quattro model)
      + 14.3.8. 4-speed automatic transmission
      + 14.3.9. System of anti-blocking of brakes (model with the forward drive)
      + 14.3.10. Central lock
      + 14.3.11. Dashboard
      + 14.3.12. Air conditioning system
      + 14.3.13. Radio tape recorder
      + 14.3.14. Headlights of forward light
      + 14.3.15. Stoplight






14.3.2.1. Cooling fan thermoswitch

GENERAL INFORMATION

Cars with the 4-cylinder engine

 
Inhaling moment: 25 N. of m.  

Cars with the 5-cylinder engine

The cooling fan thermoswitch established on the channel of the hot cooling liquid going to a radiator after cooling of the engine

Cars with the 5-cylinder engine

 

Installation of a thermoswitch on cars with the 4-cylinder engine is similar to models with the 5-cylinder engine.

Operation temperature: about 85 °C.

Temperatures at which the thermoswitch works

SPEED OF ROTATION OF THE FAN OF COOLING
THE SWITCH BECOMES ISOLATED
THE SWITCH IS DISCONNECTED
Low
92 – 97 °C
84 – 91 °C
High
99 – 105 °C
91 – 98 °C