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:

    Unlocking the trunk (mechanical key)
    The trunk lid swings upwards when opened. Therefore, make sure that there is sufficient clearance above the trunk lid. If the trunk cannot be unlocked with the SmartKey or KEYLESS-GO, use the ...

    Important safety notes
    WARNING   If you tow the vehicle, you must use a rigid towing bar if: • the engine is not running. • there is a brake system malfunction. • there is a malfunction in the power suppl ...

    Notes on the oil level
    Depending on the driving style, the vehicle consumes up to 0.9 US qts. (0.8 l) of oil over a distance of 600 miles (1000 km). The oil consumption may be higher than this when the vehicle is ne ...