See also:

Mercedes-Benz M-Class Owners Manual
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Cleaning the plastic trim
WARNING   When cleaning the steering wheel boss and dashboard, do not use cockpit sprays or cleaning agents containing solvents. Cleaning agents containing solvents cause the surface to ...

Tailgate emergency release (Wagon)
If the tailgate can no longer be opened from outside the vehicle, use the emergency release on inside of the tailgate. On vehicles with a folding bench seat you can open the tailgate from insid ...