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:

    S-Class Foundation
    The CL-Class is an impressive car for one very good reason: It has everything that helps the S-Class dominate the full-size luxury-sedan market. Stretched taut over a coupe form, the sedan's hands ...

    Cleaning the wheels
    WARNING Do not use power washers with circular-jet nozzles (dirt grinders) to clean your vehicle, in particular the tires. You could otherwise damage the tires and cause an accident. ...

    Switching on DISTRONIC PLUS, storing the current speed and maintaining it
    Important safety notes WARNING The vehicle can be braked when DISTRONIC PLUS is activated. For this reason, deactivate DISTRONIC PLUS if the vehicle is to be set in motion by other means ( ...