See also:

Guide lines in the COMAND display
WARNING Use of rear view camera can be dangerous if you are color-blind or have impaired color vision. Only use rear view camera if you can see and distinguish all colored guidelines shown ...

General notes
If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged. - Check the battery in ...

Cleaning the exterior lighting
– Clean the plastic lenses of the exterior lights with a wet sponge and a mild cleaning agent, e.g. Mercedes-Benz car shampoo or cleaning cloths. Only use cleaning agents or cleaning clo ...