Problems with fuel and the fuel tank

Problem Possible causes/consequences and Solutions
Fuel is leaking from the vehicle. fireThe fuel line or the fuel tank is defective. Risk of explosion or fire

The fuel line or the fuel tank is defective.

position 0 in the ignition lock immediately and remove it. Turn the SmartKey to position 0 in the ignition lock immediately and remove it.
under any circumstances. Do not restart the engine under any circumstances.
specialist workshop. Consult a qualified specialist workshop.
The fuel filler flap cannot be opened. The fuel filler flap is not unlocked.
or
The SmartKey battery is discharged.
the mechanical key. Unlock the vehicle using the mechanical key.
Manually unlock the fuel Open the trunk lid.
filler flap using the emergency release Manually unlock the fuel filler flap using the emergency release
The fuel filler flap is unlocked, but the opening mechanism is jammed.
specialist workshop. Consult a qualified specialist workshop.
    See also:

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    Make sure that the roller sunblind can move freely. Otherwise, the roller sunblind or other objects could be damaged. Turn the SmartKey to position 2 in the ignition lock. To extend o ...

    Displaying real-time traffic reports
    If necessary, switch to navigation mode and show the menu. Select Traffic in the navigation system menu bar by turning the COMAND controller and press to confirm. If you see the No traff ...

    Additives
    Only use DEF in accordance with ISO 22241. Do not use additives with DEF and do not dilute DEF with water. This may destroy the BlueTEC exhaust gas aftertreatment system. ...