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:
Ashtray in the rear-compartment center console
Ashtray in the rear-compartment center console
To open: pull cover 2 out
by its top edge.
To remove the insert: press
release
button 3 and lift the insert up and out.
To install the inse ...
Switching wavebands
See "Switching wavebands" in the radio mode
section. ...
Generous: the interior dimensions and load capacity
The Mercedes-Benz C-Class is amongst the most spacious vehicles in its
segment. The front shoulder room and the elbow width amount to 1390 and 1440
millimetres respectively. In the rear, the saloo ...
