See also:

Changing the battery
You require a CR 2025 3 V cell battery. •► Take the mechanical key out of the SmartKey •► Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow unti ...

Cleaning the sensors
  Clean sensors 1 of the driving systems with water, car shampoo and a soft cloth. When cleaning the sensors with a power washer, maintain a distance between the vehicle and the nozzl ...

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 ...