See also:

Activating the rear view camera
Make sure that the SmartKey is in position 2 in the ignition lock. Make sure that the "rear view camera" function is selected in COMAND (see the separate operating instructions for C ...

Mercedes-Benz M-Class Owners Manual
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Tire size designation, load-bearingcapacity and speed index
1 Tire width 2 Nominal aspect ratio in % 3 Tire code 4 Rim diameter 5 Load bearing index 6 Tire speed rating Tire data is vehicle-specific and may deviate from the data in the example. Ge ...