General notes

WARNING
If the vehicle becomes trapped in snow, ensure that snow is kept away from the exhaust pipe and from around the vehicle as long as the engine is running. Otherwise, poisonous carbon monoxide (CO) may enter the vehicle, resulting in loss of consciousness and even death.
To assure sufficient fresh air ventilation, open a window slightly on the side of the vehicle not facing the wind.

At the onset of winter, have your vehicle winterproofed at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center.
Observe the notes in the "Winter operation" section.

    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 ...

    R 300 CDI BlueEFFICIENCY: low fuel consumption MPV
    As with all BlueEFFICIENCY models from Mercedes-Benz, the R-Class features a whole range of measures to reduce fuel consumption. In addition to the direct-injection diesel engine and the low-frict ...

    Before changing a fuse
    – Park the vehicle and apply the electric parking brake. – Switch off all electrical consumers. – Remove the SmartKey from the ignition lock. The fuses are located in various fuse boxes: - fus ...