See also:

Standard display
– Press and hold the button on the steering wheel until the Trip menu with odometer 1 and trip odometer 2 is shown. ...

General notes
If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-theft alarm system will be triggered. There are several ways to turn off the alarm: To turn the a ...

SmartKey battery
Important safety notes It is advisable to have batteries replaced at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center. WARNING   Batteries contain toxic and c ...