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:
Under the Hood
Depending on the model, there are two engine options that can be teamed with
a five- or seven-speed automatic transmission.
G550's V-8 produces 382 horsepower and 391 pounds-feet of torque and tea ...
Charging the battery
WARNING
Never charge a battery still installed in the
vehicle unless a battery charger unit approved
by Mercedes-Benz is being used. Gases may
escape during charging and cause explosions
tha ...
Radiator
Vehicles with a diesel engine: do not
cover the radiator, for example with a
winter front or bug cover. The readings of
the on-board-diagnostic system may
otherwise be inaccurate. Some of ...