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:

    Underinflated tires
    WARNING Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more ...

    LATCH-type (ISOFIX) child seat anchors in the rear
    WARNING Children that are too large for a child restraint must travel in seats using normal seat belts. Position shoulder belt across the chest and shoulder, not face or neck. In order to atta ...

    Safety systems
    Problem Possible causes/consequences and Solutions (USA only) (Canada only) The red brake system warning lamp comes on while the engine is running. A warnin ...