Citroen C4 DAG 2008 1.G Owner's Manual

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Radiator - coolant
The coolant must only be checked or topped up if the power unit is cold.
Engine hot
As the cooling system is pressu-rised, wait for at least one hour after switching off the engine before inter-vening.
To avoid the risk of scalding, slacken the cap two turns to allow the pres-sure to escape. Once the pressure has fallen, remove the cap and top up the level.
Adding engine oil
Remove the dipstick before topping up.
Check the level after fi lling.
It should never exceed the maxi-mum mark.
Screw on the cap before closing the bonnet.
Quality: See "Maintenance Guide".
Topping up the cooling system
The coolant level should be between the MAX and MINmarks on the header tank.
Top up the level. If you have to add more than 1 litre, you should have the cooling system checked by CITROËN.the cooling the cooling
Make sure that the cap is on cor-rectly
Note: The necessity to top up fre-quently would indicate a malfunction that should be checked at the earli-est opportunity.
Note: On vehicles equipped with a particle fi lter, the cooling fan may operate for some ten minutes after the engine has stopped.
LEVELS

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Windscreen and rear screen washer fl uid
For best results as well as for your safety, use only CITROËN approved For best results as well as for your as well as
products which protect at tempera-tures as low as -25 °C to -30 °C.
It is essential to have suffi cient screen wash fl uid if your vehicle is equipped with Xenon headlamps.
To check the level, place a fi nger on aperture A before removing the cap.
Capacity: 3.5 litres.
Capacity with headlamp washers: 6.5 litres.
Brake fl uid
The synthetic fl uid not only gives protection against corrosion but also ensures correct functioning of the braking system in all environmental conditions, therefore you should only use the synthetic product recom-mended by the CITROËN network. use the synthetic product recom-product
(this fl uid must be replaced every two years).
These important requirements are detailed in your vehicle’s Mainte-nance Guide.
Quality: See "Maintenance Guide".
When working under the bonnet, when the engine is hot (even stopped and the ignition switched off), the cooling fan coul d operate at any time.
Brake fl uid reservoir
Check and top up at regular intervals.
The fl uid level must be situated within the max and min marks visible on the reservoir.
If the warning lamp comes on when driving, stop as quickly as possible and contact a CITROËN dealer.driving, stop as quickly as possible quickly

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Protection cover
HDi 135 and 140 engines
Remove the protection cover by fi rst unclipping point 1, then 3 and4. Detach point 2 by pulling towards you, then lift.
To reposition the protection cover, attach point 2 fi rst. Lower the cover, keeping it centred. Clip points 1 and4, pushing vertically and slightly rearwards. Clip point 3 pushing down vertically.
HDi engines are of a highly technical nature.
All maintenance and repairs require specifi c qualifi cations which only your CITROËN Dealer can guarantee.All maintenance and repairs require specifi c qualifi cations All maintenance and repairs require specifi c qualifi cations
Bleeding of water from the diesel fuel fi lter
To be bled on a regular basis (at every oil change).
To evacuate the water, slacken the bleed screw or the water in diesel fuel sensor, which is located at the base of the fi lter, until water ceases to fl ow out.
Then retighten the bleed screw or the water in diesel fuel sensor.
DIESEL INJECTION EQUIPMENTWear of brake discs, brake pads and brake drums
The rate of wear of the brake pads depends on the use of your vehicle (urban use, frequent stops), and on your style of driving or the type of journey.
For information on checking the discs and drums for wear, contact a CITROËN dealer.
After washing the vehicle, brake progressively to dry out the brake linings.

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Protection cover
HDi 135 and 140 engines
Remove the protection cover by fi rst unclipping point 1, then 3 and4. Detach point 2 by pulling towards you, then lift.
To reposition the protection cover, attach point 2 fi rst. Lower the cover, keeping it centred. Clip points 1 and4, pushing vertically and slightly rearwards. Clip point 3 pushing down vertically.
HDi engines are of a highly technical nature.
All maintenance and repairs require specifi c qualifi cations which only your CITROËN Dealer can guarantee.All maintenance and repairs require specifi c qualifi cations All maintenance and repairs require specifi c qualifi cations
Bleeding of water from the diesel fuel fi lter
To be bled on a regular basis (at every oil change).
To evacuate the water, slacken the bleed screw or the water in diesel fuel sensor, which is located at the base of the fi lter, until water ceases to fl ow out.
Then retighten the bleed screw or the water in diesel fuel sensor.
DIESEL INJECTION EQUIPMENTWear of brake discs, brake pads and brake drums
The rate of wear of the brake pads depends on the use of your vehicle (urban use, frequent stops), and on your style of driving or the type of journey.
For information on checking the discs and drums for wear, contact a CITROËN dealer.
After washing the vehicle, brake progressively to dry out the brake linings.

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HDi 135 and 140 engines
Detach the protection cover to access the priming pump.
HDi engines are of a highly technical nature.
All maintenance and repairs require specifi c qualifi cations which only your CITROËN require specifi c qualifi cations require specifi c qualifi cations
Dealer can guarantee.
HDi 90 and 110 engines
Detach the protection cover to access the priming pump.
In the event of running out of fuel:
- After fi lling (5 litres minimum), operate the manual priming pump until some resistance is felt.
- Operate the starter motor while depressing the accelerator pedal slightly until the engine starts.
If the engine fails to start at the fi rst attempt, wait 15 seconds before trying again.
If the engine fails to start after seve-ral attempts, repeat the procedure from the beginning.
When the engine is idling, accele-rate slightly to complete the bleeding of the circuit.
PRIMING THE DIESEL FUEL SYSTEM

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If you have put in fuel
that is wrong for your
vehicle, it is essential
to have the tank drained
before you start the en-
gine.
For petrol engines with catalytic
converter, use of unleaded fuel is
obligatory
The fi ller neck has a narrower orifi ce
to admit only petrol fi ller nozzles.
When you are fi lling your fuel
tank, do not persist after the third
cutoff; this could cause your ve-
hicle to malfunction.UNLEADED PETROL
DIESEL FUEL
Petrol engines are designed to run on RON 95 fuel.
However, for better vehicle perform-ance (petrol engines), we recom-mend RON 98.
A label on the inside of the fuel fi ller fl ap indicates the approved fuel quality type.
FUELBioFlex
Your vehicle has been designed to
operate
equally on unleaded pet-
rol (95 or 98) or on bioethanol (in
Europe this is a mixture of 85 %
ethanol and 15 % unleaded petrol,
known as E85).
A label inside the fuel fi ller fl ap indi-
cates the fuels authorised:
In winter conditions, starting from cold may seem diffi cult. During periods of very cold weather we recommend the use of 95 or 98 unleaded petrol in preference to B85 so as to ensure optimum starting per-formance.
Other than the question of the two authorised fuels, your vehicle is used in the same way as a traditional pet-rol vehicle.

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Access to the spare wheel
Lift the boot fl oor.
CHANGING A WHEELDimension of the spare wheel
If your spare wheel is of a different dimension to those on the vehicle (identifi ed by a label), it is essential to use it only on a temporary basis, to drive not above 80 km/h (50 mph) and to have the original wheel refi t-ted as soon as possible.
Tyre pressures
This is indicated on a label in the front door aperture.
Switch on your hazard warning lamps.
Never get underneath the vehicle if it is supported only by the jack; use an axle stand.
The jack is designed specifi cally for your vehicle, do not use it for other applications.
Refi t the repaired original wheel as soon as possible.
With a spare wheel fi tted, drive with caution.
Light alloy wheels
If your vehicle is equipped with light alloy wheels and a steel spare wheel, then if fi tting the latter it is normal to note that the heads of the wheel bolts do not come to bear on the wheel rim.
The steel spare wheel is secured by the conical tapering of the wheel bolts’ shafts, see diagram.
When refi tting the light alloy wheel, ensure that the wheel bolt heads are in undamaged condition.

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Removing the wheel
- Undo the yellow central screw by a quarter turn.
- Raise the spare wheel towards you rearwards.
- Remove the wheel from the boots-pace.
Repositioning the wheel
- Refi t the wheel in place.
- Undo the yellow central screw by a few turns, then position it at the centre of the wheel.
- Do up the central screw until tight so that the wheel is securely retai-ned in place.
The wheel should be correctly positioned fl at in the centre of its well.
Tools
The tools are located in a protective holder in the spare wheel, remove the strap to gain access.
1 - Wheelbrace
2 - Centring guide
3 - Tool for removing/refi tting wheel bolts
4 - Jack with handle
5 - Removable towing ring
6 - Tool for bolt protectors on aluminium wheels

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Removal
1 - Park the vehicle on stable, fi rm ground. Apply the handbrake.
Switch off the ignition and engage fi rst gear or reverse gear, depending on any slope (for vehicles with automatic gearbox, select position P).
2 - Detach the embellisher using the wheelbrace 1 by pulling close to the valve.
For vehicles with aluminium wheel rims, slide the removal tool 6 into the slot in the central embellisher and apply fi rm leve-rage to detach.
3 - Slacken the wheel bolts.
For vehicles with aluminium wheels, slacken the anti-theft nut using the tool provided.
4 - Position the jack under the bodyshell, exactly as in the illustration, at the mark A (in the recess in the sill member) clo-sest to the wheel that is to be replaced.
5 - Deploy the jack 4 until its base is in contact with the ground. Make sure that the base of the jack is vertically below the jac-king point used.
6 - Raise the vehicle.
7 - Remove the bolts and disen-gage the wheel.
Refi tting
1 - Position the wheel with the aid of the centring guide.
2 - Do up the 3 bolts by hand and remove the centring guide. Posi-tion the 4th bolt.
3 - Do pre-tightening with the wheel-brace 1.
4 - Retract the jack 4 and disengage it.
5 - Tighten the wheel bolts using the wheelbrace 1.
6 - Reposition the embellisher, com-mencing by placing the slot at the valve, pressing it home with the palm of your hand. For vehicles with aluminium wheels, refi t the bolt protector.
7 - Stow the tools and the wheel in the boot.
8 - Check the tyre pressure and also have its balancing checked.
Make absolutely sure that the occupants have left the vehicle and are in an area that ensures their safety.

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Inspect the tyres regularly for wear and damage such as cuts, cracks or bulges, etc.
Remove any foreign bodies (stones, pieces of metal) that may have pierced the tyre. They could cause further damage to the tyre carcass.
Correctly infl ated tyres provide:
Optimum roadholding.
Precise, light steering.Improved fuel economy.
Increased tyre life.Use the tyre pressures recom-mended by CITROËN.Use the tyre pressures recom-Use the tyre pressures recom-
Check the tyre pressures when the tyres are cold, on a frequent basis.
Never reduce the pressure of a hot tyre
Puncture
A punctured tyre should always be removed from the rim and thoroughly examined for any secondary dam-age before attempting any repair. When a repair is possible, it should be carried out as soon as possible to prevent further damage to the tyre.
Tyre repair should be carried out by a tyre specialist who will assume responsibility for the repair.



Under-infl ated tyres can overheat, leading to struc-tural damage and the risk of a blow-out.
Impacts with kerbs, potholes or hidden obstructions in the road can cause internal damage and premature failure of the tyre. Such impacts can also cause misalign-ment of the steering geometry and subsequent rapid tyre wear.
Advice
We therefore recommend that you have the tyres and suspension geometries checked after any such incidents.
Prolonged driving on poor surfaces may be the cause of damage which may only become evident at a later date.
If replacing your tyres, it is essential to use the tyre sizes that are recom-mended for your vehicle.
Contact a CITROËN dealer.
Wear indicators
Check the tread depth frequently.
Minimum legal depth: 1.6 mm.
Check the wear indicators and the tread depth regularly as worn tyres have reduced grip. The wear indica-tors show when a tyre is at its safe wear limit.
On slippery surfaces, drive prudently.Make sure that all 4 tyres are always in good condition and that the tyre pressures (including for the spare wheel) are always set correctly.

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