See also:

Automatic locking feature
The vehicle locks automatically when the ignition is switched on and the wheels of the vehicle are turning at a speed of more than 9 mph (15 km/h). You could therefore be locked out when: • th ...

Driving systems
Problem Possible causes/consequences and Solutions The red distance warning lamp lights up while the vehicle is in motion. A warning tone also sounds. Risk of accide ...

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 ...