See also:

Cleaning the steering wheel and gear or selector lever
  Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...

Position of the steering wheel when the EASY-ENTRY/EXIT feature is activ
The steering wheel swings upwards when you: Rremove the SmartKey from the ignition lock Ropen the driver's door and KEYLESS-GO is in position 1 Ropen the driver's door and the SmartKey is i ...

Problems with the side windows
Problem: a side window cannot be closed because it is blocked by objects, e.g. leaves in the window guide. Remove the objects. Close the side window. Problem: a side window cannot be closed ...