See also:

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 tri ...

State-of-the-art multimedia technology
In line with its self-assured character and its claim to be a technological trendsetter, the 2010 Mercedes-Benz S-Class also sets standards where onboard infotainment is concerned. As a world firs ...

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: the v ...