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:
Resetting triggered NECK-PRO head restraints
WARNING
For safety reasons, have the NECK-PRO head restraints checked at an authorized
Mercedes-Benz Center after a rear-end collision.
WARNING
When pushing back the NECK-PRO head restr ...
Opening
Switch off the engine.
Remove the SmartKey from the
ignition lock.
KEYLESS-GO: open the driver’s door. This
switches the ignition to position 0, which
corresponds to having removed the
Sma ...
Installing the ball coupling
WARNING
If the vehicle/trailer combination is not
secured, the trailer may come loose. As a
result, you could cause an accident.
Therefore, make sure that the ball coupling is
secured with th ...