Mercedes-Benz M-Class Owner's Manual page 159

Refuelling
156
Problems with the fuel and fuel tank
Problem
Fuel is leaking from the
vehicle.
The engine does not
start.
The fuel filler flap can-
not be opened.
Possible causes/consequences and M Solutions
G Risk of explosion or fire
The fuel line or the fuel tank is faulty.
Turn the key to position 0(
X
immediately and remove it.
Do not restart the engine under any circumstances.
X
Consult a qualified specialist workshop.
X
The fuel tank of a vehicle with a diesel engine has been run com-
pletely dry.
Refuel the vehicle with at least five litres of diesel.
X
Turn the ignition on for at least 10 seconds (
X
Start the engine continuously for up to 10 seconds until it runs
X
smoothly.
If the engine does not start:
Turn the ignition on again for approximately 10 seconds
X
( page 139).
Y
Start the engine again continuously for up to 10 seconds until
X
it runs smoothly.
If the engine does not start after three attempts:
Consult a qualified specialist workshop.
X
The fuel filler flap is not unlocked.
or
The key battery is discharged.
Unlock the vehicle (
X
or
Unlock the vehicle using the emergency key element
X
( page 74).
Y
The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
Consult a qualified specialist workshop.
X
page 139) in the ignition lock
Y
page 72).
Y
page 139).
Y