Problems with fuel and the fuel tank

Problem Possible causes/consequences and Solutions
Fuel is leaking from the vehicle. Risk of explosion or fire

The fuel line or the fuel tank is defective.
- Turn the SmartKey to position 0 in the ignition lock immediately and remove it.
- Do not restart the engine under any circumstances.
- 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.
- Unlock the vehicle.
or
- Unlock the vehicle using the mechanical key.
The fuel filler flap is unlocked, but the opening mechanism is jammed.
- Consult a qualified specialist workshop.
The engine will not start. The fuel tank of a vehicle with a diesel engine has been run completely dry.
- Refuel the vehicle with at least 5.3 US qt (5 liters) of diesel.
- Turn the ignition on for at least 10 seconds.
- Start the engine continuously for up to 10 seconds until it runs smoothly.
If the engine does not start:
- Turn the ignition on again for approximately 10 seconds.
- Start the engine again continuously for up to 10 seconds until it runs smoothly.
If the engine does not start after three attempts:
- Consult a qualified specialist workshop.
    See also:

    Cleaning the headliner and carpets
    Roof lining: use soft brushes or dry shampoo if it is particularly dirty. Carpets: use carpet and textile cleaners that have been approved and recommended by Mercedes-Benz. ...

    Important safety notes
    WARNING When operating the climate control, the air that enters the passenger compartment through the air vents can be very hot or very cold (depending on the set temperature). This could c ...

    Rear window roller sunblind (Sedan)
    Important safety notes WARNING When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children una ...