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

1.5.15. Cooling system


The cooling system is tight and does not require great attention.

It is necessary to use only qualitative antifreeze which is containing ethylene glycol and not containing phosphatic connections.


Antifreeze – is poisonous! Always you store antifreeze only in a company container and out of reach of children.

Audi models (1986-1989)

By production in the cooling system the all-weather antifreeze intended for operation at a temperature up to -25 °C is filled in.

As it has anticorrosive properties, antifreeze should not be merged from the cooling system for the summer period.

Audi models (1990-1992)

By production in the cooling system all-weather cooling liquid which does not demand replacement is filled in. Cooling liquid represents mix of water and additive to cooling liquid a detail G 11 – antifreeze on an etilenglikolevy basis with anticorrosive additives (which content makes 40%–60%. This mix guarantees protection against freezing and protects all cooling system against emergence of corrosion and a scum, and also raises a boiling point of cooling liquid.

Do not lower concentration of cooling liquid adding simple water to the summer period. Content of antifreeze has to be not less than 40% and no more than 60%, for preservation of protection against freezing and efficiency of cooling.

The cooling liquid which is filled in in the cooling system by production is intended for all-weather use at a temperature up to -25 °C or to -40 °C.