Mercedes-Benz M-Class Owners Manual

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Fuse box in the battery case
The fuses in the battery case do not usually need to be replaced. If a fuse change is necessary, consult a qualified specialist workshop. ...

Engine oil
Notes on the oil level Depending on the driving style, the vehicle consumes up to 0.9 US qt (0.8 l) of oil over a distance of 600 miles (1000 km). The oil consumption may be higher than this when ...

Activating/deactivating airrecirculation mode
WARNING Fogged windows impair visibility, endangering you and others. If the windows begin to fog on the inside, switching off the air recirculation mode immediately should clear interior window ...