check engine Citroen DS3 2012.5 1.G User Guide

Deactivation
In exceptional conditions (starting a vehicle
which is bogged down, stuck in snow, on softground...), it may be advisable to deactivate the ASR and ESP systems, so that the wheels can
move freely and regain grip. )Press the "ESP OFF"button, located on
the left below the steering wheel.

If this warnin
g lamp comes on in the
instrument panel and the indicator
lamp in the button comes on, this
indicates that the ASR and ESP
systems are deactivated.

Reactivation

These systems are reactivated automatically each time the ignition is switched back on or from 30 mph (50 km/h) except 1.6 litre (THP 150, THP 155 and THP 160) and
RACING petrol engines. )
Press the "ESP OFF"
button again to
reactivate them manually.

Operating fault

The ESP/ASR systems offer exceptional safety in normal driving, butthis should not encourage the driver to take extra risks or drive at high speed.
The correct functioning of these systems depends on obser vation of themanufacturer's recommendations on:


- wheels (tyres and rims),

- braking components,

- electronic components,

- assembly and repair procedures.
After an impact, have these systems checked by a CITROËN dealer or a qualified workshop.

If this warning lamp comes on, accompanied by an audible signal and amessage in the multifunction screen, this
indicates a mal
function of these systems. Have it checked by a CITROËN dealer or a qualified workshop.

169Driving

Operating fault
With the ignition on, if this warninglamp comes on and AUTOflashes,
accompanied by an audible signal and a
message in the multifunction screen, this
indicates a gearbox fault. Have it checked by a CITROËN dealer or a qualified workshop.


Reinitialisation
(5-speed electronic
gearbox)
In exceptional circumstances, thegearbox may need an automatic reinitialisation: starting and gear changing are no longer possible.
AUTO
and - -appear in theinstrument panel. AUTO

and - -
appear in the instrument panel.
)Select position N.)Press the brake pedal.)Wait for around 30 seconds until Nor a gear appears in the instrument panel. )Move the gear lever to position A, then toposition N . )With your foot still on the brake pedal, start
the engine.
The gearbox is operational again. Followin
g disconnection of the battery, it is necessary to reinitialise the gearbox. )Switch on the ignition.
Follow the procedure described above.

The system is reactivated automaticallyat every new star t using the key.
Reactivation
This system requires a battery with a specialspecification 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 fault with the system, the
"ECO OFF"
switch warning lamp flashes thencomes on continuously.
Have it checked by a CITROËN dealer or aqualified workshop.
In the event of a fault in STOP mode, the
vehicle may stall. All of the instrument panel
warning lamps come on. It is then necessaryto switch off the ignition and star t the engine
again using the key.


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 & Start system makes use of advanced technology. All work
on this type of battery must be doneby 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,accompanied by a message in the screen.

177Driving





Hill start assist
System which holds your vehicle temporarily (approximately 2 seconds) when star ting on a slope, the time it takes to move your foot from
the brake pedal to the accelerator pedal.
This function is onl
y active when:


- the vehicle is completel
y stationary, with your foot on the brake pedal,

- certain conditions on a slope are met,

- with the driver’s door closed.
The hill start assist function cannot bedeactivated.
On an ascending slope, with the vehicle
stationar
y, the vehicle is held momentarilywhen you release the brake pedal:- provided you are in automated mode(position A) or in manual mode (position AM )
on an electronic gearbox.

Do not leave the vehicle while it is being held in the hill star t assist phase.
If you need to leave the vehicle withthe engine running, manually apply the parking brake then ensure that the parking brake warning lamp is on (notflashing) in the instrument panel.
Operation
On a descending slope, with the vehicle
stationary and reverse gear engaged, thevehicle is held momentarily when you
release the brake pedal.

Operating fault

If a malfunction of the system occurs, these
warning lamps come on. Contact a CITROËN
dealer or a qualified workshop to have the
system checked.

010
Checks
This section describes access to the engine compar tment, the procedure
for bleeding the fuel system on Diesel engines after running out of fuel,
the location of various engine components needed to check the levelsand the main wearing parts.

187
Checks








Bonnet
Protects the components of the engine and provides access for checking levels.


Opening
)Open the front left door.)Pull the interior release lever A
, located at
the bottom of the door aper ture.
) Push the exterior safety catch Bto the leftand raise the bonnet. )
Unclip the bonnet stay Cfrom its housing, holding it by its foam protection.)
Fix the stay in the notch to hold the bonnetopen.

The location of the interior release lever prevents opening of the bonnet whilethe front left door is closed.

When the engine is hot, handle theexterior safety catch and the stay withcare.
Before doing anything under the bonnet, switch off the Stop & Startsystem to avoid any risk of injury resulting from an automatic change toSTA R T m o d e .

Closing








Running out of fuel
(Diesel)
If your vehicle is fitted with an HDI engine,
the fuel system must be primed if you run out of fuel.
This system consists of a priming pump and a
transparent pipe under the bonnet.
)Fill the fuel tank with at least five litres of
Diesel.)Open the bonnet. )Depending on version, unclip the cover togain access to the priming pump.)Squeeze and release the priming pump
until resistance is felt (could be from the
first application) and fuel appears in the
transparent pipe with the green connector. )Operate the star ter until the engine star ts.)Depending on version, put the cover back in position and clip it in place.)Close the bonnet.
If the engine does not star t at the firstattempt, do not try again. Operate the priming pump again, thenthe starter.
)Take the stay out of the support notch.)Clip the stay in its housing. )Lower the bonnet and release it at the end of its travel. )Pull on the bonnet to check that it is fully latched.

189Checks














Petrol engines
1.
Screenwash fluid reservoir. 2.Coolant header tank.3.Air filter.
4.
Brake fluid reservoir.
5. Battery.
6.Fusebox.
7. Engine oil dipstick.8.Engine oil filler cap.

191Checks




























Checking levels
Check all of these levels regularly and top them up if necessary, unless other wise indicated.
If a level drops si
gnificantly, have the corresponding system checked by a CITROËN dealer or a qualified workshop.


Oil level
Engine oil change
Refer to the servicing booklet for details of
the inter val for this operation.
In order to maintain the reliabilit
y of the engine and emission control system, the use of additives in the engine oil is prohibited.
Oil grade
The oil must be suitable for your engine and conform to the manufacturer'srecommendations.



Brake fluid level


Changing the fl uid

Refer to the servicing booklet for details of
the interval for this operation.

Fluid specifi cation

The brake fluid must conform to themanufacturer's recommendations and meet
the DOT4 s t a n d a r d .Th
e brake fluid level should be closeto the "MA X" mark. If it is not, check
the brake pad wear. The reading will only be correct if
the vehicle is on level ground and
the engine has been off for more than30 minutes.
The check is carried out either when the ignition is switched on using the oil level indicator in
the instrument panel, or using the dipstick.
It is normal to top up the engine oil between services. CITROËNrecommends that you check the oil
level and top up if necessary, every 3 000 miles (5 000 kilometres).

Changing the coolant

The coolant does not have to be changed.


Fluid specifi cation

The coolant must conform to the
manufacturer's recommendations.



Screenwash fluid level


Fluid specifi cation

For optimum cleaning and to avoid freezing,
this fluid must not be topped up or replaced
with plain water.

Take care when carrying out checks under the bonnet as some parts of theengine can be very hot (risk of burns).

Coolant level
Top up the level when necessary.
Th
e coolant level should be close
to the "MA X" mark but should never exceed it. When the engine is warm, the
temperature of the coolant is regulated by the fan. This can operate with the ignition off.
On vehicles which are fitted with a particle emission filter, the fan may operate after
the vehicle has been switched off, even if
the en
gine is cold.
In addition, as the cooling system is pressurised, wait at least one hour after switching off the engine before carrying out any
work.
To avoid any risk of scalding, unscrew the cap
by two turns to allow the pressure to drop.
When the pressure has dropped, remove the
cap and top up the level.