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:
Handling, Ride & Braking
More a cruiser than a corner-carver, the C300 handles OK. Despite our
tester's sport-tuned suspension, midcorner body roll can become intrusive, and
the Continental ContiProContact all-season tire ...
General notes
Here you will find further information on the
following topics:
• safety notes
• notes on DVDs ...
General notes
The roller sunblinds shield the vehicle interior
from sunlight. The two roller sunblinds can
only be opened and closed together when the
panorama roof with power tilt/sliding panel
is closed.
...
