Mercedes-Benz G-Class 2011 Owners Manual - Manual (Page 122)

Problems with the engine
Problem Possible causes/consequences and M Solutions
The engine does not
start. The starter motor
can be heard. R There is a malfunction in the engine electronics.
R
There is a malfunction in the fuel supply.
X Turn the SmartKey back to position 0 in the ignition lock before
attempting to start the engine again.
X Try to start the engine again ( Y page 117). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop, e.g. an authorized
Mercedes-Benz Center.
The engine does not
start. The starter motor
can be heard. The
reserve fuel warning
lamp is on. The needle
of the fuel gauge is
pointing to the reserve
range and does not
drop any further. The fuel tank is empty.
X Refuel the vehicle.
The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the starter battery is too
weak or discharged.
X Jump-start the vehicle ( Y page 238).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop, e.g. an authorized
Mercedes-Benz Center.
The starter motor was exposed to a thermal load that was too high.
X Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop, e.g. an authorized
Mercedes-Benz Center.
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Driving
Driving and parking