Access To The Battery; Starting Using Another Battery; 12 V Battery - CITROEN Grand C4 PICASSO Owner's Handbook Manual

12 V battery

Procedure for starting the engine using another battery or charging a discharged battery.
The presence of this label, in particular
with the Stop & Start system, indicates
the use of a 12 V lead-acid battery with
special technology and specification;
the involvement of a CITROËN dealer
or a qualified workshop is essential
when replacing or disconnecting the
battery.
After refitting the battery, the Stop &
Start system will only be active after a
continuous period of immobilisation of the
vehicle, a period which depends on the
climatic conditions and the state of charge
of the battery (up to about 8 hours).

Access to the battery

The battery is located under the bonnet.
For access to the (+) terminal:
release the bonnet using the interior lever,
then the exterior safety catch,
raise the bonnet and secure it with its stay,
lift the plastic cover for access to the (+)
terminal.
Before doing any work
Immobilise the vehicle: apply the
parking brake, put the gearbox in
neutral, then switch off the ignition.
Check that all electrical equipment is
switched off.
Practical information
Starting using another
battery
When your vehicle's battery is discharged, the
engine can be started using a slave battery
(external or on another vehicle) and jump lead
cables.
First check that the slave battery has a
nominal voltage of 12 V and a capacity
at least equal to that of the discharged
battery.
Do not try to start the engine by
connecting a battery charger.
Do not disconnect the (+) terminal when
the engine is running.
Connect the red cable to the positive
terminal (+) of the flat battery A, then to the
positive terminal (+) of the slave battery B.
Connect one end of the green or black
cable to the negative terminal (-) of the
slave battery B (or earth point on the other
vehicle).
Connect the other end of the green or black
cable to the earth point C on the broken
down vehicle (or on the engine mounting).
Start the engine of the vehicle with the
good battery and leave it running for a
few minutes.
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