CITROËN C4 Handbook page 171

Starting the engine
With the parking brake applied and the gearbox
in neutral or position N or P:
F depress the clutch pedal fully (manual
gearbox),
or
F press the brake pedal firmly (automatic
gearbox),
F insert the key into the ignition switch; the
system recognises the code,
F unlock the steering column by
simultaneously turning the steering and
the key.
In certain cases, you may have to apply
more force to the steering (wheels on
full lock, for example).
F With a petrol engine, operate the starter
motor by turning the key to position 3
without pressing the accelerator pedal,
until the engine starts. Once the engine is
running, release the key.
F With a Diesel engine, turn the key to
position 2, ignition on, to operate the
engine pre-heating system.
Wait until this warning lamp goes off
in the instrument panel then operate
the starter motor by turning the key
to position 3 without pressing the
accelerator pedal, until the engine
starts. Once the engine is running,
release the key.
In wintry conditions, the warning lamp
can stay on for a longer period. When
the engine is hot, the warning lamp
does not come on.
If the engine does not start straight
away, switch off the ignition. Wait a
few moments before operating the
starter motor again. If the engine does
not start after several attempts, do not
keep trying: you risk damaging the
starter motor or the engine. Contact
a CITROËN dealer or a qualified
workshop.
In temperate conditions, do not leave
the engine at idle to warm up but move
off straight away and drive at moderate
speed.
Never leave the engine running in
an enclosed area without adequate
ventilation: internal combustion
engines emit toxic exhaust gases,
such as carbon monoxide. Danger of
intoxication and death!
In very severe wintry conditions
(temperatures below -23°C), to ensure
the correct operation and durability of
the mechanical components of your
vehicle, engine and gearbox, it is
necessary to leave the engine running
for 4 minutes before moving off.
Driving
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