See also:

Activating/deactivating DSR
Activating You can only activate DSR if you are driving at 25 mph (40 km/h) or slower. – Press button 1. Indicator lamp 2 lights up. The following messages appear in the multifunction displa ...

Problems with your vehicle
If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to contact an authorized Mercedes-Benz Center immediately to ...

Vehicles with manual transmission
Shift to either first gear or reverse gear R. Turn the SmartKey to position 0 in the ignition lock and remove it. The immobilizer is activated. Apply the parking brake firmly. ...