Mercedes-Benz GL-Class 2012 Owners Manual - Manual (Page 165)

Problems with fuel and the fuel tank
Problem Possible causes/consequences and M Solutions
Fuel is leaking from the
vehicle. G Risk of explosion or fire
The fuel line or the fuel tank is defective.
X Turn the SmartKey to position 0( Y page 149) in the ignition lock
immediately and remove it.
X Do not restart the engine under any circumstances.
X 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.
X Unlock the vehicle using the mechanical key ( Y page 79).
X Open the tailgate.
X Manually unlock the fuel filler flap using the emergency release
(
Y page 161).
The fuel filler flap is unlocked, but the opening mechanism is
jammed.
X Manually unlock the fuel filler flap using the emergency release
(
Y page 161).
X 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.
X Refuel the vehicle with at least 5.3 US qt (5 liters) of diesel.
X Turn the ignition on for at least 10 seconds ( Y page 149).
X Start the engine continuously for up to 10 seconds until it runs
smoothly.
If the engine does not start:
X Turn the ignition on again for approximately 10 seconds
(
Y page 149).
X Start the engine again continuously for up to 10 seconds until
it runs smoothly.
If the engine does not start after three attempts:
X Consult a qualified specialist workshop.
Refueling
163
Driving and parking
Z