See also:

Problems with the seat ventilation
The seat ventilation has switched off prematurely or cannot be switched on. The vehicle's electrical system voltage is too low because too many electrical consumers are switched on. •► ...

Important safety notes
WARNING Do not adjust the steering wheel while driving. Adjusting the steering wheel while driving, or driving without the steering wheel adjustment feature locked could cause the driver to lo ...

Activating/deactivating PRE-SAFE® Brake
PRE-SAFE® Brake is only available in vehicles with DISTRONIC PLUS. Press the or button on the steering wheel to select the DriveAssist menu. Press or to select PRE-SAFE Brake. Pres ...