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:
Please bear the following in mind
The engine oils are matched to the performance of Mercedes-Benz
engines and service intervals. You should therefore only use engine oils and oil
filters that are approved for vehicles with mainten ...
Important safety notes
Observe the "Important safety notes" section ().
ABS regulates brake pressure in such a way that the wheels do not lock when you
brake. This allows you to continue steering the vehicle ...
Please bear the following in mind
The engine oils are matched to the
performance of Mercedes-Benz engines and
service intervals. You should therefore only
use engine oils and oil filters that are
approved for vehicles with mai ...