See also:

Opening
You can open the trunk lid automatically using the SmartKey or the handle in the trunk lid. Press and hold the button on the SmartKey until the trunk lid opens. or When the trunk is unloc ...

Storing a destination permanently in the destination memory
Proceed as described in the "From the list of previous destinations" section. ...

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 ...