See also:

Resetting triggered NECK-PRO head restraints
WARNING For safety reasons, have the NECK-PRO head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision. WARNING When pushing back the NECK-PRO head restr ...

Resetting values
You can reset the values of the following functions: • Trip odometer • Trip computer "From start" • Trip computer "From reset" Press the or button on the steering ...

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 ...