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:
Vehicle remote closing
If you forget to lock your vehicle but are no
longer in the vicinity of the vehicle, it can be
locked for you by the Mercedes-Benz
Customer Assistance Center.
The vehicle can be locked remotely ...
DEF
Important safety notes
For BlueTEC vehicles only.
DEF is a non-flammable, non-toxic, colorless,
odorless and water-soluble fluid.
Rinse surfaces that have come into
contact with DEF immediately ...
Shift ranges
WARNING
Always wait until the procedure of shifting
from HIGH RANGE to LOW RANGE – and from
LOW RANGE to HIGH RANGE – has been
entirely completed. During this procedure do not turn o ...