2012 Citroen DS4 battery

The system is reactivated automaticallyat every new star t using the key.
Reactivation

This system requires a specific battery with aspecial specification and technology (reference numbers available from a CITROËN dealer or a qualified workshop).
Fitting a battery not listed by CITROËN
introduces the risk of malfunction of the system. In the event of a malfunction with the s
ystem,
the "ECO OFF"switch warning lamp flashes,
then comes on continuously.
Have it checked by a CITROËN dealer or aqualified workshop.


Operating fault
Maintenance

Before doing anything under the bonnet, deactivate the Stop & Start system to avoid any risk of injury resulting from automatic operation of STA R T mode.

The Stop & Star t system makes use of advanced technology. All work on this type of battery must be done only by a CITROËN dealer or a qualifiedworkshop. Pr
ess the "ECO OFF"switch again.
The system is active again; this is confirmed
by the switch warning lamp going off and the
display of a message.
In the event of a fault in STOP mode, thevehicle may stall. All of the instrumentpanel warning lamps come on.Depending on version, an alert message may also be displayed askingyou to put the gear lever into position Nand put your foot on the brake pedal.
It is then necessary to switch off the ignition, then restart the engine using the key.

235
Checks














Petrol engines

The various caps and covers allow access for
checking the levels of the various fluids and for
replacing cer tain components.
1. Power steering reservoir.2.Screenwash and headlamp wash reservoir.3.Coolant reservoir.4.
Brake fluid reservoir.
5. Battery/Fuses.
6.Fusebox.
7. Air filter.8.Engine oil dipstick.9.
Engine oil filler cap.

Diesel engines
The various caps and covers allow access for
checking the levels of the various fluids, for replacing cer tain components and for primingthe fuel system.
1.
Power steering reservoir.2.
Screenwash and headlamp wash reservoir.3.
Coolant reser voir. 4.
Brake fluid reservoir.5.
Battery/Fuses.
6.Fusebox.7. Air filter.8.Engine oil dipstick. 9.
Engine oil filler cap.10.Priming pump *
. 11.
Bleed screw *
.
*
Accordin
g to engine.

Checks


Air filter and passenger compartment filter


Oil filter
Unless other wise indicated, check these components in accordance with the ser vicing booklet and according to your engine.
Other wise, have them checked b
y a CITROËN dealer or a qualified workshop.
The batter
y does not require anymaintenance.
However, check that the terminals
are clean and correctl
y tightened, particularly in summer and winter.
When carrying out work on the battery, refer
to the "Practical information" section for
details of the precautions to be taken before
disconnecting the battery and following itsreconnection. Re
fer to the ser vicing booklet for
details of the replacement inter vals
for these components.
Depending on the environment(e.g. dusty atmosphere) and the use of the vehicle (e.g. city driving), replace them twice as often if necessary(refer to the "Engines" section). y A clogged passenger compar tment filter mayhave an adverse effect on the performance
of the air conditioning system and generate undesirable odours.
Re
place the oil filter each timethe engine oil is changed.
Refer to the ser vicing booklet for
details of the replacement inter val for
this component.
The presence of this label, in particular with the Stop & Star t system, indicates the use of a specific 12 V lead-acid battery with special technology and specification. The involvement of a CITROËN dealer or a qualified workshop is essential when replacingor disconnecting the battery.

269Practical information
The fusebox is placed in the engine compartment near the battery (left-hand side).
Access to the fuses
)
Unclip the cover.
)
Change the fuse (see correspondingparagraph). )
When you have finished, close the cover carefully to ensure correct sealing of the fusebox.


Engine compartment fuses

271Practical information














12 V battery
Procedure for starting the engine using another battery or for charging your flat 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.
Access to the battery

After refitting the battery, the Stop & Start system will only be active after acontinuous 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).
The presence of this label, in particular with the Stop & Star t system, indicatesthe use of a 12 V lead-acid battery withspecial technology and specification;
the involvement of a CITROËN dealer or a qualified workshop is essential when replacing or disconnecting the battery.

Check that the battery posts and terminals are clean. If they are coveredwith sulphate (white or green deposit), disconnect them and clean them.


Batteries contain harmful substancessuch as sulphuric acid and lead. Theymust be disposed of in accordancewith regulations and must not, in any circumstances, be discarded with household waste. Ta k e used cell batteries and vehiclebatteries to an authorised collection point.



Before doing any work
Immobilise the vehicle: apply theparking brake, put the gearbox inneutral *
, then switch off the ignition. Check that all electrical equipment is switched off.


*
or position Pfor an automatic gearbox.

can be star ted using a slave battery (external or
in another vehicle
) and jump leads.
Starting using another
battery
)Connect the red lead to the (+) terminal of
the flat battery A, then to the (+) terminal of
the slave battery B.)Connect one end of the green or black lead
to the (-) terminal of the slave battery B (or
the ear th point on the slave vehicle). )Connect the other end to the ear th point Con the broken-down vehicle.)Star t the engine on the slave vehicle andleave the engine running for a few minutes.

First ensure that the slave battery has anominal voltage of 12 V and a capacityat least equal to that of the flat battery.
Do not try to star t the engine by connecting a battery charger.
Do not disconnect the (+) terminal when the engine is running.
)
Operate the star ter on the broken-down
vehicle and leave the engine running.
I
f the engine does not star t straight away, switch off the ignition and wait a few
moments before trying again.) With the engine idling, disconnect the jumpleads in reverse order.
)Position the open clamp Eof the cable on
the positive post (+) of the battery. )Press down on the clamp to position itcorrectly on the battery post. )Lock the clamp by lowering the lever D .


Reconnecting the (+)
term
inal
Disconnectin
g the (+)
terminal
)Raise the lever D
fully to release the clamp E.


Do not force the lever as locking will not be possible if the clamp is not positioned
correctly; star t the procedure again.

273Practical information

Charging the battery using
a battery charger

If the battery of your vehicle is flat or prior
to taking the vehicle out of ser vice for an extended period, you can charge the battery
using a battery charger.
For information on the specification of batterychargers compatible with your battery, refer to
a CITROËN dealer or a qualified workshop.

The Stop & Start battery does not haveto be disconnected for charging.


Reinitialisation after
reconnection
After any reconnection of the battery, switch on
the ignition and wait at least one minute before
starting, to allow time for the initialisation of theelectronic systems.
By referring to the corresponding sections, you should set or initialise the following systems yourself:


- one-touch electric windows,

- time and date,

- audio and navigation system settings.

It is recommended that the battery be disconnected if the vehicle is not be used for more than a month.

Check that no aler t message or warning lamp comes on after switching on the ignition.
However, if minor problems persist after carrying out these operations, contact a CITROËN dealer or a qualified workshop.



Before disconnecting
)Go to the battery. )Check that all of the openings - doors, boot... - are closed but not locked.)Wait at least four minutes after switchingoff the ignition.
Charging
)
Disconnect the (+)terminal. )
Follow the instructions on use provided by
the manufacturer of the charger.) Connect the red cable of the charger to the (+) post of the battery, then the black cable
to the (-) terminal.) Once charging is complete, disconnect thecharger cables in reverse order.
The charging operation must be carried outin a well ventilated area and well away from naked flames and sources of sparks, so as to avoid any risk of explosion and fire. Do not try to charge a frozen battery; the
battery must first be thawed out to avoid any risk of explosion. If the battery hasfrozen, before charging, have it checkedby a CITROËN dealer or a qualified workshop, who will ensure that the internal components have not been damaged and that the casing is not cracked, which wouldintroduce the risk of a leak of toxic and corrosive acid.