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Problems with the fuel and fuel tank
Problem
Fuel is leaking from the
vehicle.
The engine does not
start.
The fuel filler flap cannot
be opened.
Possible causes/consequences and M M Solutions
G
WARNING
The fuel line or the fuel tank is faulty.
There is a risk of fire or explosion.
Apply the electric parking brake.
X
Switch off the engine.
X
Remove the key from the ignition lock.
X
or, on vehicles with KEYLESS-GO start function or KEYLESS‑GO:
Open the driver's door.
X
The on-board electronics now have status 0. This is the same as the
key 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 completely
dry.
Refuel the vehicle with at least 5 litres of diesel.
X
Turn the ignition on for approximately ten seconds (
X
Start the engine continuously for a maximum of ten seconds until it
X
runs smoothly.
If the engine does not start:
Turn the ignition on again for a maximum of ten seconds
X
(
page 158).
Y
Start the engine again continuously for a maximum of ten seconds
X
until 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.
Unlock the vehicle (
X
PLUG-IN HYBRID vehicles: depressurise the fuel tank
X
(
page 176).
Y
The key battery is discharged or nearly discharged.
Unlock the vehicle using the emergency key element (
X
The fuel filler flap is unlocked, but the opening mechanism is jammed.
Consult a qualified specialist workshop.
X
page 85).
Y
Refuelling
179
page 158).
Y
page 86).
Y
Z
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