See also:

General notes
If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged. Check the battery in ...

Checking the coolant level
Only check the coolant level when the vehicle is on a level surface and the engine has cooled down. Turn the SmartKey to position 2 in the ignition lock. On vehicles with KEYLESS-GO, press ...

Problems with the sliding sunroof
In the following section, the term "sliding sunroof" refers to the panorama roof with power tilt/sliding panel. Problem: the sunroof cannot be closed and you cannot see the cause. W ...