Downhill gradients
On long and steep gradients, you must reduce the load on the brakes by shifting early to a lower gear. This allows you to take advantage of the engine braking effect and helps avoid overheating and excessive wear of the brakes.
When you take advantage of the engine braking effect, a drive wheel may not turn for some time, e.g. on a slippery road surface. This could cause damage to the drive train. This type of damage is not covered by the Mercedes-Benz warranty.
See also:
Important safety notes
WARNING
Severe conditions (e.g. strong air pollution) may require replacement of the
filter before its scheduled replacement interval. A clogged filter will reduce the
air volume to the inte ...
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 ...
Menu overview
The number of menus shown depends on the optional equipment in the vehicle.
1. Trip menu
2. Navi menu (navigation instructions)
3. Audio menu
4. Tel menu (telephone)
5. DriveAssist. ...
