See also:

Restoring the factory settings
- Press the and buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...

Remote vehicle locking
If you forget to lock your vehicle but are no longer in the vicinity of the vehicle, it can be locked for you by the Mercedes-Benz Customer Assistance Center. The vehicle can be locked remotely ...

Weight of optional extras
The combined weight of those optional extras that weigh more than the replaced standard part and more than 2.3 kilograms (5 lbs). These optional extras, such as highperformance brakes, level co ...