See also:

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

Resetting the rear sunblind
Door control panel in rear Turn the SmartKey to position 1 or 2 in the ignition lock. Pull switch 1 repeatedly until the rear roller sunblind is fully closed. Keep switch 1 pulled for ...

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