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.

- 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:

    Side marker lamps
    - Remove the cover in the front wheel arch. - Turn cap 2 counter-clockwise and remove it. - Pull out bulb holder 1. - Take the bulb out of bulb holder 1. - Insert the new bulb into bulb holder 1 ...

    Refueling
    Fuel filler flap The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or using KEYLESSGO. The position of the fuel filler cap is displaye ...

    4MATIC (permanent four-wheel drive)
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