Mercedes-Benz M-Class Owners Manual

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Headlamps fogged up on the inside
The headlamps may fog up on the inside if there is high atmospheric humidity. ► Drive with the headlamps switched on. The level of moisture diminishes, depending on the length of the jou ...

Closing
- Replace the fuel filler cap and turn it clockwise. The fuel filler cap audibly engages. - Close the fuel filler flap. If you drive with the fuel filler cap open, reserve fuel warning la ...

Important safety notes
The coolant is a mixture of water and antifreeze/corrosion inhibitor. It performs the following tasks: • corrosion protection • antifreeze protection • raising the boiling point The engi ...