Check of level and density of a cooling liquid

Expansion tank engine cooling system is located in the engine compartment.

The coolant level can be correctly verified only on the idle engine.

On the cold engine it must be between the MIN and MAX expansion tank on the hot engine level may be slightly above the mark MAX.

To check the density necessary to use a hydrometer.

A significant decrease in the coolant level indicates the likely tightness of seals. In this case, you should immediately contact your dealer Audi.

In the cooling system without opening the coolant level may be reduced if the motor overheats when the coolant boils and out.