Standard display
Press and hold the 
button on
the
steering wheel until the Trip menu with
odometer 1 and trip odometer 2 is
shown.
See also:
Ashtray in the rear-compartment center console
Ashtray in the rear-compartment center console
To open: pull cover 2 out
by its top edge.
To remove the insert: press
release
button 3 and lift the insert up and out.
To install the inse ...
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.
...
Please bear the following in mind
At the onset of winter, have your vehicle
winterproofed at a qualified specialist
workshop, e.g. at an authorized Mercedes-
Benz Center.
Observe the notes in the "Changing a wheel"
...