Opening the DEF filler cap
The filler neck for DEF is behind the fuel filler flap.
The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or with KEYLESSGO.

- Switch off the ignition.
- Press the fuel filler flap in the direction of
arrow 1.
The fuel filler flap swings up.
- Turn blue DEF filler cap 2
counterclockwise and remove it.
DEF filler cap 2 is secured with a plastic
strap.
See also:
Storing the ball coupling
WARNING
Do not carry the ball coupling in the vehicle
interior if it is not secured.
Otherwise, you and others could be injured by
the ball coupling being thrown around if you:
- brake sharply ...
Automatic drive program
Drive program E (drive program C on AMG
vehicles) is characterized by the following:
• the vehicle pulling away more gently in
forward and reverse gears, unless the
accelerator pedal is depre ...
Opening and closing the service flap
You must open the service flap in the cargo
compartment before you can change the
bulbs in the tail lamps.
Left-hand service flap
Right-hand service flap
- To open: release service flap 1 a ...
