See also:

Important safety notes
RACE START is only available in AMG vehicles. RACE START enables optimal acceleration from a standing start. The precondition for this is a suitable high-grip road surface. WARNING RACE ...

Unlocking the driver's door(mechanical key)
If the vehicle can no longer be unlocked with the SmartKey, use the mechanical key. If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system will be trigge ...

MB Info call button
– Press and hold MB Info call button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center. The indicator lamp in MB Info call button 1 flashes ...