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 A ...

Locking the vehicle
If the vehicle can no longer be locked with the SmartKey, you can lock it by taking the following steps. If the central locking in the vehicle is malfunctioning, you cannot lock the trunk. P ...

Important safety notes
WARNING Air bags are designed to reduce the incidence of injuries and fatalities in certain situations: • frontal impacts (driver's and frontpassenger front air bags and driver's knee bag) • ...