See also:

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

Safety
The R-Class received a Good overall score — the highest rating possible — in the Insurance Institute for Highway Safety's frontal-offset and side-impact crash tests. It hadn't yet undergone IIHS' ...

Canceling or continuing route guidance
Canceling route guidance To activate navigation mode: press the function button once or twice. To show the menu: press the COMAND controller. Select Destination in the navigation sys ...