Switching Off The Engine; Emergency Switch-Off - CITROEN C4 Spacetourer Handbook

Driving
F Place the gear selector at P or N for
vehicles with an automatic gearbox or
neutral for vehicles with a manual gearbox.
F Place the electronic key in the reader.
F Press the brake pedal for vehicles with an
automatic gearbox, or fully depress the
clutch pedal for vehicles with a manual
gearbox.
F Briefly press the "START/STOP" button.
The steering column unlocks and the engine
starts more or less instantly.
On certain versions with the automatic gearbox
(EAT6/EAT8), the steering column does not
lock.
For Diesel vehicles, in sub-zero temperatures
the engine will not start until the pre-heater
warning lamp has gone off.
If this warning lamp comes on after
pressing the "START/STOP" button,
press down on the brake or clutch
pedal until the warning lamp goes
off, without pressing the "START/
STOP" button again, until the engine
starts and runs.
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If one of the starting conditions is not met,
a reminder message is displayed in the
instrument panel. In some circumstances, it is
necessary to turn the steering wheel slightly
while pressing the "START/STOP" button to
assist unlocking of the steering; a message
warns you when this is needed.
With petrol engines, after a cold start,
preheating the catalytic converter can
cause noticeable engine vibrations for
anything up to 2 minutes while stationary
with the engine running (accelerated idle
speed).

Switching off the engine

F Immobilise the vehicle.
F Place the gear selector at P or N for
vehicles with an automatic gearbox or
neutral for vehicles with a manual gearbox.
F Press the "START/STOP" button.
The engine stops and the steering column
locks.
On certain versions with the automatic gearbox
(EAT6/EAT8), the steering column does not
lock.
F Remove the electronic key from the reader.
If the vehicle is not immobilised, the
engine will not stop.
Switching off the engine leads to a loss of
braking assistance.

Emergency switch-off

In the event of an emergency only, the engine
can be switched off without conditions (even
when driving).
Press the "START/STOP" button for about
three seconds.
In this case, the steering column locks as soon
as the vehicle stops.
On certain versions with the automatic gearbox
(EAT6/EAT8), the steering column does not
lock.
Electronic key left in the reader
You will be warned by a message if the
electronic key is still in the reader on
opening the driver's door.