See also:

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

Setting the interior/exterior lighting delayed switch-off time
Interior lighting: you can set whether and for how long you wish the interior lighting to remain on in the dark after you have removed the SmartKey from the ignition lock. Exterior light: you c ...

Operating video DVD
– Switch on COMAND and select video DVD (see the separate operating instructions). – Press the or button on the steering wheel to select the Audio menu. DVD changer display (example) 1 Cur ...