Page 320 of 527

318
C4-Picasso-II_en_Chap08_en-cas-panne_ed02-2016
12 V battery
The battery is located under the bonnet.
For access to the (+) terminal:
F
r
elease the bonnet using the interior lever,
then the exterior safety catch,
F
r
aise the bonnet and secure it with its stay,
F
l
ift the plastic cover for access to the (+)
terminal.
Access to the battery
Procedure for starting the engine using another battery or charging a discharged battery.
Protect your eyes and face before
handling the battery.
All operations on the battery must be
carried out in a well ventilated area and
away from naked flames and sources
of sparks, so as to avoid the risk of
explosion or fire.
Wash your hands after wards.
Versions equipped with Stop & Start are
fitted with a 12 V lead-acid battery of
specific technology and specification.
Its replacement should be carried out
only by a CITROËN dealer or a qualified
workshop.
Batteries contain harmful substances
such as sulphuric acid and lead.
They must be disposed of in
accordance with regulations and must
not, in any circumstances, be discarded
with household waste.
Take used remote control batteries and
vehicle batteries to a special collection
point.
General points
Lead-acid starter batteries
If your vehicle has an automatic
gearbox, do not try to start the engine
by pushing the vehicle.
The (-) battery terminal is not accessible.
A remote earth point is located in the upper
section under the bonnet (alongside the
battery).
In the event of a breakdown
Page 321 of 527

319
C4-Picasso-II_en_Chap08_en-cas-panne_ed02-2016
F Start the engine of the vehicle with the good battery and leave it running for a
few
m
inutes.
F
O
perate the starter on the broken down
vehicle and let the engine run.
I
f the engine does not start straight
away, switch off the ignition and wait a
few
moments before trying again.
F
W
ait until the engine returns to idle then
disconnect the jump lead cables in the
reverse order.
F
R
efit the plastic cover to the (+) terminal, if
your vehicle has one.
F
A
llow the engine to run for at least
30
minutes, by driving or with the vehicle
stationary, so that the battery reaches an
adequate state of charge.
Starting using another battery
Some functions, including Stop & Start,
are not available if the battery is not
sufficiently charged.
F
R
aise the plastic cover on the (+) terminal,
if your vehicle has one.
F
C
onnect the red cable to the positive
terminal (+) of the flat battery A (at the metal
elbow) then to the positive terminal
(+) of the
slave battery B or the booster.
F
C
onnect one end of the green or black
cable to the negative terminal (-) of the
slave battery B or the booster (or earth
point on the other vehicle).
F
C
onnect the other end of the green or black
cable to the earth point C on the broken
down vehicle.
Never try to start the engine by
connecting a battery charger.
Never use a 24 V or higher battery
b o o s t e r.
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.
The two vehicles must not be in contact
with each other.
Switch off the electrical consumers on
both vehicles (audio system, wipers,
lighting,
...
).
Ensure that the jump lead cables do
not pass close to moving parts of the
engine (cooling fan, belts,
...).
Do not disconnect the (+) terminal when
the engine is running.
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 or a battery booster.
8
In the event of a breakdown
Page 326 of 527

324
C4-Picasso-II_en_Chap08_en-cas-panne_ed02-2016
Running out of fuel (Diesel)
On vehicles fitted with Diesel engines, the fuel
system must be primed if you run out of fuel.
For all versions other than BlueHDi, refer to the
corresponding engine compartment view.Other HDi engines
(except BlueHDi version)
For more information on Diesel misfuel
prevention , refer to the corresponding
section.
If the engine does not start first time,
don't keep trying but start the procedure
again from the beginning.
BlueHDi engines
F Fill the fuel tank with at least five litres of Diesel.
F
S
witch on the ignition (without starting the
engine).
F
W
ait around 6 seconds and switch off the
ignition.
F
R
epeat the operation 10 times.
F
O
perate the starter to run the engine. F
A
dd at least five litres of Diesel fuel to the
tank.
F
O
pen the bonnet.
F
I
f necessary, unclip the styling cover for
access to the priming pump.
F
S
queeze and release the priming pump
repeatedly until resistance is felt (there
may be resistance at the first press).
F
O
perate the starter to start the engine
(if the engine does not start at the first
attempt, wait around 15 seconds before
trying again).
F
I
f the engine does not start after a
few
attempts, operate the priming pump
again then start the engine.
F
R
efit the styling cover and clip it in place.
F
C
lose the bonnet.
In the event of a breakdown