See also:

Additives
Do not use any additives in the engine oil. This could damage the engine. ...

Folding the exterior mirrors in or out automatically
If the "Fold in mirrors when locking" function is activated in the on-board computer: - the exterior mirrors fold in automatically as soon as you lock the vehicle from the outside. - ...

Checking the oil level using the oildipstick
When checking the oil level: • park the vehicle on a level surface. • the engine should be switched off for approximately five minutes if the engine is at normal operating temperature. Example: ...