Mercedes-Benz S-Class 2012 - Manual (Page 322)

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 303) 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 ( Y page 78).
or
X Unlock the vehicle using the mechanical key ( Y page 81).
The fuel filler flap is unlocked, but the opening mechanism is
jammed.
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 303).
X Start the engine continuously for up to 10 seconds until it runs
smoothly.
or
X Start the engine via the touch-start function. To do this, turn the
SmartKey to position
3 ( Y page 303) in the ignition lock and
then release it immediately.
If the engine does not start:
X Turn the ignition on again for approximately 10 seconds
(
Y page 303).
X Start the engine again continuously for up to 10 seconds until
it runs smoothly.
or
X Start the engine again via the touch-start function.
If the engine does not start after three attempts:
X Consult a qualified specialist workshop.
320
Refueling
Driving and parking