Smart Key battery
See also:
Service messages
Information on the type of service and service
intervals (see separate Service Booklet).
You can obtain further information from an
authorized Mercedes-Benz Center or at
http://www.mbusa.com (U ...
Driving tips
Maintain a greater distance from the vehicle in front than when driving
without a trailer.
Avoid braking abruptly. If possible, brake gently at first to allow the
trailer to run on. Then, i ...
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 ...
