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 ...

Installing/removing the towing eye
Installing the towing eye Vehicles with a trailer tow hitch: if possible secure the towing device on the trailer tow hitch. ► Remove the towing eye from the vehicle tool kit. WARNING&nbs ...

Problems with the SmartKey
Problem Possible causes/consequences and Solutions You cannot lock or unlock the vehicle using the SmartKey. The SmartKey battery is discharged or nearly discharged. - ...