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:
Gadgets
The CL's standard equipment list is long. Our test car came with a number of
option packages; here are some of the highlights:
For starters, the blind spot monitors are included in a package that ...
Notes on technical data
The data stated here specifically refers to a vehicle with standard equipment.
Consult an authorized Mercedes-Benz Center for the data for all vehicle variants
and trim levels. ...
Cleaning the wheels
WARNING
Do not use power washers with circular-jet nozzles (dirt grinders) to clean your
vehicle, in particular the tires. You could otherwise damage the tires and cause
an accident. ...
