See also:

Parking lamps/standing lamps (halogen headlamps)
- Turn housing cover 1 counter-clockwise and pull it out. - Pull out bulb holder 2. - Take the bulb out of bulb holder 2. - Insert the new bulb into bulb holder 2. - Insert bulb holder 2. - A ...

Mercedes-Benz M-Class Owners Manual
...

Brake fluid level
If you notice that the brake fluid level in the brake fluid reservoir has fallen to the MIN mark or less, check the brake system immediately for leaks. Also check the thickness of the brake li ...