Mercedes-Benz A Series Owner's Manual page 235

Practical advice
Troubleshooting
Fuel and fuel tank
Problem
Fuel is leaking from the vehicle.
The fuel filler flap cannot be
opened.
The fuel tank in a diesel engine
vehicle has been run completely
dry and the engine will not start.
232
Possible cause/consequence
G Risk of explosion or fire
The fuel line or the fuel tank is
defective.
The fuel filler flap is not released.
The opening mechanism is jam-
med.
There is air in the fuel system.
Suggested solutions
Turn the key to position 0 (
X
Y
ately and remove it.
Do not restart the engine under any circumstances.
X
Consult a qualified specialist workshop.
X
Unlock the vehicle ( page 241).
X
Y
or
Unlock the vehicle manually (
X
Consult a qualified specialist workshop.
X
Refuel the vehicle.
X
Switch on the ignition for approximately 10 seconds (key in posi-
X
tion 2 ( page 62) in the ignition lock).
Y
Start the engine continuously for up to 40 seconds until it runs
X
smoothly.
The fuel system is now free of air.
If the engine does not start:
Wait two minutes.
X
Repeat the starting procedure for up to 40 seconds.
X
If the engine still does not start:
Consult a qualified specialist workshop.
X
page 62) in the ignition lock immedi-
page 242).
Y