Power washers

WARNING
Do not use power washers with circular-jet nozzles (dirt grinders) to clean your vehicle, in particular the tires. You could otherwise damage the tires and cause an accident.

least Always maintain a distance of at least 11.8 in (30 cm) between the vehicle and the power washer nozzle. Information about the correct distance is available from the equipment manufacturer.
Move the power washer nozzle around when cleaning your vehicle.
Do not aim directly at any of the following:
• tires
• door gaps, roof gaps, joints etc.
• electrical components
• battery
• connectors
• lights
• seals
• trim elements
• ventilation slots
Damaged seals or electrical components can lead to leaks or failures.

    See also:

    Mercedes-Benz M-Class Owners Manual
    ...

    Problems with the rear window defroster
    The rear window defroster has deactivated itself prematurely or cannot be activated. Switch off any consumers that are not required, e.g. reading lamps or interior lighting. When the battery ...

    Off-road drive program
    The off-road drive program is available only in vehicles without the Off-Road Pro engineering package. The off-road drive program assists you in driving off-road. The engine’s performance char ...