Mercedes-Benz 2016 GL Operator's Manual page 187

Problems with fuel and the 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 WARNING
The fuel line or the fuel tank is faulty.
Risk of explosion or fire.
Apply the electric parking brake.
X
Switch off the engine.
X
Remove the SmartKey from the ignition lock.
X
or, on vehicles with KEYLESS‑GO:
Open the driver's door.
X
The on-board electronics now have status 0. This is the same as
the SmartKey having been removed.
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 5.3 US qt (5 liters) of diesel.
X
Turn the ignition on for approximately ten seconds
X
( page 165).
Y
Start the engine continuously for up to ten seconds until it runs
X
smoothly.
If the engine does not start:
Turn the ignition on again for approximately ten seconds
X
( page 165).
Y
Start the engine again continuously for up to ten seconds until it
X
runs smoothly.
If the engine does not start after three attempts:
Consult a qualified specialist workshop.
X
The fuel filler flap is not unlocked.
Unlock the vehicle (
X
The SmartKey battery is discharged or nearly discharged.
Unlock the vehicle using the mechanical key (
X
The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
Consult a qualified specialist workshop.
X
page 82).
Y
Refueling
185
page 84).
Y
Z