Audi 80/90/Coupe

since 1986-1991 of release

Repair and car operation

Audi 80/90/Coupe
- 1.2. Car identification
   1. Maintenance instruction
   1.3. Arrangement of identification plates
   1.4. Dashboard
   - 1.5. Car service
      1.5.2. Seasonal change such as 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. AKPP liquid
      1.5.10. MKPP oil
      1.5.11. Air filter
      1.5.12. Spark plugs
      + 1.5.13. Hydraulic booster of a steering and amplifier of brake system
      - 1.5.14. Brake liquid Check of level of brake liquid Replacement of brake liquid
      + 1.5.15. Cooling system
      + 1.5.16. Tanks for washers of a windscreen and headlights of forward light
      1.5.17. Razbryzgivateli
      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 preventive car servicings / greasings
+ 2. Engines, carburetors
3. Greasing system
+ 4. Cooling system
+ 5. Fuel system
+ 6. Exhaust system
+ 7. Ignition system
+ 8. Transmission
+ 9. Suspension brackets, wheels
+ 10. Brake system
+ 11. Steering
+ 12. Body, salon
+ 13. Central air
+ 14. Electric equipment

dfe5d7b3 Check of level of brake liquid


The correct level of brake liquid is important for work of brake system. Level of brake liquid in a tank always should be between marks the MOVE and MIN. At fall of level of brake liquid the alarm bulb of brake system automatically joins.

Level of brake liquid can go down a little eventually in view of automatic adjustment of brake shoes. It should not be at the bottom for concern.

If level of brake liquid falls much below "MIN" mark, the alarm bulb of brake system will light up. In this case, all brake system should be carefully checked and eliminated the reason of fall of level of brake liquid.


Brake liquid is poisonous. Brake liquid also negatively influences car painting.

Do not use brake liquid which absorbed moisture from air or the polluted brake liquid. It can result in premature wear of brake system or unreliable work of brakes.

Do not add and do not mix silicone brake DOT 5 liquid with brake liquid in your car as it can lead to serious corrosion of elements of brake system. Such corrosion can lead to an exit of brake system out of operation.