Mercedes-Benz E-Sedan 2012 Owners Manual - Manual (Page 153)

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 Before attempting to start the engine again, turn the SmartKey
in the ignition back to position
0 or press the Start/Stop button
repeatedly until all indicator lamps in the instrument cluster go
out.
X Try to start the engine again ( Y page 146). 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. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak
or discharged.
X Jump-start the vehicle ( Y page 338).
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.
Driving
151
Driving and parking
Z