Fuel filler flap
The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or using KEYLESSGO.
The position of the fuel filler cap is displayed
in the instrument cluster 
. The
arrow
next to the filling pump indicates the side of
the vehicle.
Example: Sedan
1. To open the fuel filler flap
2. To insert the fuel filler cap
3. Tire pressure table
4. Fuel type
See also:
Mercedes-Benz M-Class
With the 2012 M-Class, Mercedes brings the comfortable, luxurious driving
experience of its flagship S-Class sedan to its most popular SUV.
If you don't like to be disturbed by the world around yo ...
Hiding display messages
You can hide some display messages with a low priority.
•► Press the or
button on the steering wheel to
hide the display message.
The display message is cleared.
Display messages with a ...
Setting the interior/exterior lighting
delayed switch-off time
Interior lighting: you can set whether and for
how long you wish the interior lighting to
remain on in the dark after you have removed
the SmartKey from the ignition lock.
Exterior light: you c ...