Closing
•► Replace the fuel filler cap and turn it clockwise. The fuel filler cap audibly engages.
•► Press the fuel filler flap closed until it engages audibly.
If you drive with the fuel filler cap open,
reserve fuel warning lamp 
flashes.
In
addition, the 
Check Engine warning
lamp may light up. A message appears in
the multifunction display.
For further information on warning and indicator lamps in the instrument cluster
Close the fuel filler flap before locking the vehicle. A locking pin otherwise prevents the fuel filler flap from closing after the vehicle has been locked.
See also:
Cleaning the exhaust tail pipes
Impurities combined with the effects of road
grit and corrosive environmental factors may
cause flash rust to form on the surface. You
can restore the original shine of the exhaust
tail pipe b ...
Vehicle equipment
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences a ...
Body: high energy absorption in the event of a front impact
The extremely robust occupant compartment of the Mercedes-Benz M-Class,
together with the front and rear deformation zones, forms an effective basis for
the occupant protection system. The focus o ...