See also:

Connecting an external device
Do not leave external devices in the vehicle as extreme temperatures (e.g. direct sunlight or extremely low outside temperatures) could cause them to malfunction (see the operating instructions ...

Important safety notes
WARNING The DISTRONIC PLUS requires familiarity with its operational characteristics. We strongly recommend that you review the following information carefully before operating the system. ...

Activating/deactivating
The evaporator is ventilated when the airconditioning system is operated. The blower is activated automatically approximately one hour after the vehicle has been locked. The blower operates on ...