Audi 80/90/Coupe

since 1986-1991 release

Repair and operation of the car

Audi 80/90/Coupe
- 1.2. Identification of the car
   1. Maintenance instruction
   1.3. Arrangement of identification plates
   1.4. Dashboard
   - 1.5. Service of the car
      1.5.2. Seasonal change like fuel
      1.5.3. Petrol additives
      1.5.4. The latest news in the field of fuel
      1.5.5. Cowl
      1.5.6. Engine compartment
      + 1.5.7. Engine oil
      1.5.8. Oil filter of the engine
      + 1.5.9. Automatic transmission liquid
      1.5.10. MKPP oil
      1.5.11. Air filter
      1.5.12. Spark plugs
      + 1.5.13. Hydraulic booster of steering and amplifier of the brake system
      + 1.5.14. Brake fluid
      - 1.5.15. Cooling system Check of level of cooling liquid Overheat Addition of cooling liquid Fan of cooling of a radiator Operation of the car during the winter period
      + 1.5.16. Tanks for washers of a windshield and headlights of forward light
      1.5.17. Sprayers
      1.5.18. Brushes of screen wipers
      + 1.5.19. Tires / wheels
   + 1.6. Independent service of the car
   + 1.7. Specifications
   1.8. Capacities
   1.9. Sizes
   1.10. Loadings
   1.11. Schedule of preventive servicing / lubricant 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 Check of level of cooling liquid


Level of cooling liquid needs to be checked from time to time, and also to do it before distant trips.


Not to get burn, never open a cowl if you hear or you see that steam or cooling liquid come out a motive compartment. Wait, it will not be heard yet or it is visible couple or cooling liquid and only after that carefully open a cowl.

As the broad tank of the cooling system is made of transparent plastic, there is no need to open a cover for check of level of cooling liquid.

At the cold engine, the level of cooling liquid in a transparent broad tank has to be at the level of the mark MIN (it is specified by an arrow).

At the warmed engine, the level of cooling liquid has to rise a little above this mark.

On a broad tank the electronic device of check of level of cooling liquid is also installed.

If the level of cooling liquid falls below the mark MIN, then the alarm bulb of the cooling system will light up.

Reduction of level of cooling liquid

Reduction of level of cooling liquid can demonstrate existence of leak in the cooling system. In this case, the cooling system has to be checked. It is insufficiently simple to add cooling liquid.

In tight system leak of liquid can happen only if temperature of liquid rose above a boiling point as a result of an overheat.