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- Fig. 224 Engine compartment: Cap of coolant expansion tank
Checking coolant level
Park your AudiTT on a level surface.
Switch off the ignition.
Read off the coolant level on the coolant expansion tank Fig. ►. When the engine is cold, the coolant level should be between the marks. When the engine is warm, it may be slightly above the top mark.
Topping up coolant
Important: The coolant expansion tank must not be empty
►.
Wait for the engine to cool down.
Cover the cap on the expansion tank with a cloth, and carefully unscrew the cap anti-clockwise
►.
Add coolant in the correct concentration link► up to the top mark.
You should make sure that the fluid level remains stable. If necessary, add more coolant.
Screw the cap on again tightly.
Any loss of coolant normally indicates a leak in the cooling system. Drive to a qualified workshop without delay and have the cooling system checked. If there are no leaks in the system, a loss of coolant can only occur if the coolant boils and is forced out of the system as a result of overheating.
- The cooling system is under pressure. Do not unscrew the cap on the expansion tank when the engine is hot: you could be scalded by escaping steam.
- The coolant and coolant additive can be a health hazard. Store the coolant additive in the original container in a safe place out of reach of children – risk of poisoning.
- When working in the engine compartment be aware that the radiator fan may start running suddenly, even if the ignition is switched off – risk of injury!