Engine
Problem
Possible causes/consequences and
X
X
Solutions
The engine will not
start.
The HOLD function or Distronic Plus* is activated.
X
Switch off HOLD (
Y
page 151) or Distronic Plus (
Y
page 146).
X
Try to start the engine again.
The engine will not
start. You can hear the
starter motor operat-
ing.
R
There is a malfunction in the engine electronics.
R
There is a malfunction in the fuel supply.
R
The on-board voltage is too low because the starter battery is
too weak or discharged.
X
Before the next start attempt, turn the key back to position 0
(
Y
page 75) in the ignition lock or press the Start/Stop but-
ton* until all the indicator lights in the instrument cluster have
gone out.
X
Try to start the engine again (
Y
page 103). When doing so,
remember that excessively long and frequent attempts to start
the engine will drain the battery.
If the engine does not start after several attempts:
X
Consult a qualified specialist workshop.
The engine will not
start. You can hear the
starter motor operat-
ing. The reserve fuel
warning lamp is on and
the fuel gauge
shows 0.
The fuel tank has been run dry.
X
Refuel the vehicle.
The engine will 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 323).
If the engine does not start despite attempting to jump-start it:
X
Consult a qualified specialist workshop.
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.
Troubleshooting
291
Pr
act
ical
ad
vice
* optional
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