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:
Engine
Display messages
Top Up Coolant See
Operator's Manual
Possible causes/consequences and ►
Solutions
The coolant level is too low.
► Add coolant, observing the warning notes
...
Center console, lower section
Stowage compartment Ashtray Cigarette lighter Power socket
Selector lever
Cup holder
Stowage compartment
Audio/COMAND controller
Selects the drive program
...
Roadside Assistance button
•► Press and hold Roadside Assistance
button 1 for more than two seconds.
This initiates a call to the Mercedes-Benz
Customer Assistance Center. The indicator
lamp in Roadside Assistanc ...