See also:

Immobilizer
The immobilizer prevents your vehicle from being started without the correct SmartKey. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be starte ...

Adjusting the sound settings
You can select the sound settings in the audio CD/DVD/MP3, video DVD and AUX modes. Switch on an audio operating mode (e.g. audio CD mode). Select Treble or Bass using the buttons on the remo ...

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 ...