Instruction book AUDI A1
 Audi A1   General maintenance   Checking and topping up fluids  Cooling system
If the coolant level has dropped below the MIN mark, add more coolant.
Checking coolant level
Switch off the ignition.
Read off the coolant level on the coolant expansion tank. When the engine is cold, the coolant level should be between the MIN and MAX marks. When the engine is warm, it may be slightly above the MAX mark.
Topping up coolant
Wait for the engine to cool down.
Cover the cap on the expansion tank with a cloth, and carefully unscrew the cap anti-clockwise WARNING!.
Add 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.
WARNING!
  • 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.

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