CITROEN C3 AIRCROSS Handbook page 70

In the event of a breakdown
The negative cable must be connected
to the car ground (not to the battery
negative terminal) so that the battery sensor
can detect all charging and discharging
currents.
► Lift the cover on the (+) terminal, if the
vehicle has one.
► Connect the red cable to the (+) terminal of
flat battery A (at the metal elbow), then to the
(+) terminal of the backup battery B or of the
booster.
► Connect one end of the green or black
cable to the (-) terminal of the backup battery B
or of the booster (or to an earth point on the
assisting vehicle).
► Connect the other end of the green or black
cable to the earth point C on the broken down
vehicle.
► Start the engine on the assisting vehicle and
leave it running for a few minutes.
► Operate the starter on the broken down
vehicle and let the engine run.
If the engine does not start immediately, switch
off the ignition and wait a few moments before
trying again.
► Wait for it to return to idle.
► Disconnect the jump leads in reverse order:
first remove (-) terminal then (+) terminal..
► Refit the cover to the (+) terminal, if the
vehicle has one.
► Allow the engine to run for at least
30 minutes, with the vehicle stationary, so
68
that the battery reaches an adequate state of
charge.
Disconnecting/removing
the battery
In order to maintain an adequate state
of charge for starting the engine, it
is recommended that the battery be
disconnected if the vehicle is taken out of
service for a long period.
Before disconnecting the battery:
► Close all openings (doors, boot, windows).
► Switch off all electrical consumers (audio
system, wipers, lighting, etc.).
► Switch off the ignition and wait for
4 minutes.
► Disconnect the negative cable.
► Disconnect the positive cable.
► Remove the bottom mounting bracket if you
need to remove the battery.
Be careful not to cause accidental
short circuits between the positive
and negative battery terminals.
Do not allow smoking, sparks or flames
around fuel or the battery.
After reconnection
After reconnecting the battery, turn on the
ignition and wait 1 minute before starting the
engine, to enable the electronic systems to
initialise.
If minor problems nevertheless persist following
this operation, contact a CITROËN dealer.
Referring to the relevant section, initialise or
reset certain equipment:
– Date and time.
– Preset radio stations.
Towing the vehicle
General recommendations
Observe the legislation in force in the
country where you are driving.
Ensure that the weight of the towing vehicle
is higher than that of the towed vehicle.
The driver must remain at the wheel of the
towed vehicle and must have a valid driving
licence.
When towing a vehicle with all four wheels
on the ground, always use an approved
towing arm; rope and straps are prohibited.
The towing vehicle must move off gently.