See also:

Vehicle remote opening
If you have unintentionally locked your vehicle (e.g. the SmartKey is still in the vehicle) and a replacement SmartKey is not available, the vehicle can be opened by a Mercedes-Benz Customer Assis ...

Tire pressure of at least 180 kPa(1.8 bar/26 psi) is not reached
If, after five minutes, a pressure of 180 kPa (1.8 bar/26 psi) has not been achieved: ► Press the on/off switch on the tire inflation compressor to 0. The tire inflation compressor is ...

General notes
If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key. If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-the ...