Caps on motor oil bottles, pop bottles and beer bottles keep the liquid in. But a radiator cap is not any ordinary cap. Though it seals the cooling system from the outside, the radiator cap is ...

The best way forward here is to take the car to a workshop that knows Audis and have them pressure test the cooling system. Modern cars have sealed coolant systems, suggesting that they shouldn’t lose ...

Regularly checking your car’s coolant during summer is essential to prevent engine overheating and costly mechanical damage. High temperatures and frequent air-conditioning use increase stress on the ...