See also:

Checking the oil level using the oil dipstick
Park the vehicle on a level surface. To check the oil level with the engine at operating temperature, switch the engine off and wait for approximately five minutes. Pull oil dipstick 1 ou ...

Adding engine oil
WARNING If engine oil comes into contact with hot engine parts, it may ignite and you could burn yourself. Do not spill any engine oil on hot engine parts. Environmental note When adding oi ...

Cleaning the trailer tow hitch
The ball coupling must be cleaned if it becomes dirty or corroded. – Remove rust on the ball of the ball coupling, e.g. with a wire brush. – Remove dirt with a clean, lint-free cloth or a brus ...