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:
Adding engine oil
WARNING
If engine oil comes into contact with hot engine parts, it may ignite and you
could burn yourself. Do not spill any engine oil on hot engine parts.
Environmental note
When adding oil ...
Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
Cruise control activated:
The segments light up from the stored speed
to the maximum speed.
DISTRONIC PLUS activated:
O ...
Adjusting the steering wheel
electrically
1 To adjust the steering wheel height
2 To adjust the steering wheel position
(fore-and-aft adjustment)
Other topics:
- EASY-ENTRY/EXIT feature
- Storing settings ...
