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 key back to position 0 in the ignition lock before
attempting to start the engine again.
X
Try to start the engine again (Y page 111). Avoid excessively
long and frequent attempts to start the engine, as this will drain
the battery.
If the engine does not start after several attempts:
X
Consult a qualified specialist workshop, e.g. a Mercedes-Benz
Service Centre.
The engine does not
start. The starter motor
can be heard. The
reserve fuel warning
lamp is lit and the fuel
gauge display shows 0.
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 235).
If the engine does not start despite attempts to jump-start it:
X
Consult a qualified specialist workshop, e.g. a Mercedes-Benz
Service Centre.
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. a Mercedes-Benz
Service Centre.
Vehicles with a petrol
engine:
The engine is not run-
ning smoothly and is
misfiring.
There is a malfunction in the engine electronics or a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
X
Have the cause rectified immediately at a qualified specialist
workshop, e.g. a Mercedes-Benz Service Centre.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
Driving
115
Driving and parking
Z
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