2011.5 Citroen C4 engine coolant

46
Monitoring
When the engine is
running, this indicates the
temperature of the coolant.
Range
When the engine isrunning , this indicates
the distance which can still be travelled with thefuel remaining in the tankbased on the average
fuel consumption over the
last few miles/kilometres
travelled.

This value may vary following a change
in the style of driving or the relief,resulting in a large variation in the current fuel consumption.
If you only add a few litres, the value
displayed will be incorrect. Therefore,you must fill the tank whenever possible.
Coolant temperature
gauge
If the bar is close to the criticalposition located
on the right, the temperature is too high.
The symbol flashes when your engine is
overheating.
You must stop your vehicle as soon as it is
safe to do so.Wait a few minutes before switching off theengine.
When the range is less than 30 miles (50 km),
dashes are displayed.
Refuel as soon as possible. The display of the range is updated.


Wait for the engine to cool beforetopping up the level. The cooling system is pressurised.
To avoid any risk of scalding, unscrew the cap by two turns to allow thepressure to drop. When the pressure has dropped,remove the cap and top up the level, if necessary.
Contact a CITROËN dealer or aqualified workshop.


When you disconnect the battery, the previous fuel consumption data is lost and the value displayed will be different from that displayed before thebattery was disconnected. The distancedisplayed must be considered anapproximate indication.

200
Practical information
Driving advice
Distribution of loads
)Distribute the load in the trailer so that theheaviest items are as close as possible to
the axle and the nose weight approaches the maximum permitted without exceeding it.
Air density decreases with altitude, thus reducing engine performance. Above
1 000 metres, the maximum towing load must
be reduced by 10 % of the GTW and so on for every 1 000 metres of altitude.
Refer to the "Technical Data" section for details
of the weights and towing loads which apply to your vehicle.
Side wind
)Take into account the increased sensitivity
to side wind.

Cooling

To w i ng a trailer on a slope increases the
temperature of the coolant.
As the fan is electricall
y controlled, its cooling capacity is not dependent on the engine speed.)
To lower the engine speed, reduce your speed.
The maximum towing load on a long slope
depends on the gradient and the outside
tem
perature.
In all cases, pay attention to the coolant
temperature.
) If this message is displayed, stop your vehicle as soon as it is safe to do so.


Braking

To w i ng a trailer increases the braking distance.


Tyres
)Check the tyre pressures of the towingvehicle and of the trailer, obser ving the recommended pressures.



Lighting
)Check the lighting and signalling on the
trailer.
I
f the message flashes slowly, wait for the engine to cool before topping up the level, if necessary.
If the messa
ge flashes rapidly, contact a CITROËN dealer or a qualified workshop
without delay.

206
Checks
fluids and the replacement of cer taincomponents.














Petrol engines
1.
Screenwash and headlamp wash fluidreservoir.2.
Coolant header tank.3.
Brake fluid reservoir.4.
Battery. 5.
Fusebox.
6.Air filter.
7. Engine oil dipstick. 8.Engine oil filler cap.
1.6 litre 115
2.0 litre 150

207
8
Checks
checking the levels of the various fluids, for
replacing cer tain components and for primingthe fuel system.














Diesel engines
1.
Screenwash and headlamp wash fluidreservoir.2.Coolant reservoir.3.Brake fluid reservoir.4.
Battery.
5. Fusebox.
6.Air filter.
7. Engine oil dipstick.8.Engine oil filler cap.9.
Priming pump * . 1.6HDi 110
1.8 HDi 150
*

According to engine.

212
Checks
The coolant level should be closeto the "MA X" mark but should never exceed it.

In addition, as the cooling system is pressurised,
wait at least one hour after switching off the engine before carrying out any work.
To a v o i d a ny 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.

Changing the coolant
The coolant does not have to be changed.


Fluid specifi cation

The coolant must conform to themanufacturer's recommendations. Th
e brake fluid level should be close
to the "MA X" mark. If it is not, check
the brake pad wear.
Brake fluid level
Changing the fl uid
Refer to the ser vicing booklet for details of the
interval for this operation.
Fluid specifi cation
The brake fluid must conform to themanufacturer's recommendations and meet the
DOT3 or DOT4 standard.

The cooling fan may start after switching off the engine: take care with ar ticles and
clothing that might become caught by the
fan blades.
When the engine is warm, the temperature of
the coolant is regulated by the fan.

.
321 Alphabetical index
ABS and EBFD systems ...............................146Accessories..................................................202Accessory socket, 12V ...................98, 100,101Access to bulbs.............................................181Active stability control (ASC)........................148Adjusting headlamps....................................137Adjusting head restraints ................................81Adjusting seat belt height..............................150Adjusting the steering wheel ...........................87Airbag, knee..........................................156,158Airbags, curtain .....................................157,158Airbags, front.........................................154,158Airbags, lateral......................................156,158Air conditioning...............................................22Air conditioning, automatic .......................89, 92Air conditioning, manual...........................89,90Air filter..........................................................r214Air flow............................................................22Air intake.........................................................92Air vents..........................................................88Alarm ...............................................................73Anti-lock braking system (ABS)..........................................................146Anti-theft........................................................110Apple® player®.........................................266-268Armrest, front....................................82,98,101Armrest, rear...................................................r84ASC...............................................................148Ashtray, por table.....................................98,100Audible warning............................................145Audio- CD system..................................283-320Audio-telematic system........................223-282Audio-video...................................................236Audio streaming (Bluetooth).................269,307Audio system functions .........................224, 285
Automatic illumination of headlamps ....132, 134Automatic operation of hazard warninglamps..........................................................145Automatic rain sensitive windscreen wipers...140Automatic switching off of lighting ................134Auxiliary sockets ..................102, 264,304,305
Capacity, fuel tank ........................................208CD changer...................................................r301CD MP3 .................................................240,299Central locking..........................................62,65Changing a bulb.....................................180-185Changing a fuse.....................................186-191
A
C
Changing a wheel ..................................174-179Changing a wiper blade................................195Changing the remote control battery..............68Changing the time.....................................54,58Checking levels ......................................211-213Checking the engine oil level ........................211Checks..................................................205-216Child seats ............................................159-168Child lock .......................................................169Cigarette lighter.............................................r100Closing the boot ........................................62, 71Closing the doors................................62,65, 70Colour screen.................................56, 224, 225Connectors, audio ................102,264,304, 305Controls for air conditioning ......................90, 92Coolant............................................................46Coolant level.................................................212Courtesy lamp, front.....................................142Cour tesy lamp, rear......................................r143Copying a CD ................................................241Cruise control................................................124Cup holder.......................................................r98CVT gearbox .........................................113,215
Battery...................................................192,214Battery, charging...........................................194
Battery, remote control .............................68,69Bluetooth (telephone) .............269 -282, 309 -319Bonnet...........................................................205Bonnet stay...................................................205Boot .................................................................71Boot lamp ......................................................144Bottle holder....................................................r98Brake discs....................................................216Brake lamps ..................................................184
Brake pads ....................................................216Brakes........................................................... 216Braking assistance system...........................146Bulbs (changing, type)..........................180, 184
B
Daytime running lamps.........................134, 182Deactivating ASC..........................................148Deactivating the passenger airbag...............155Deactivation of the passenger and
rear window control switches.......................77Deadlocking..............................................63, 65Defrosting ..................................................96, 97Demisting..................................................96, 97Dials................................................................24Diesel additive level ......................................213
D

328
Visual search
Maintenance - Technical data
Engine compar tment fuses 18 6, 189 -191


Running out of fuel, Diesel 210
Checking levels 211-213 - oil - brake fluid - coolant - screenwash/headlamp wash fluid

Changing bulbs 180 -185 - front - rear




Petrol engines 217
Petrol weights 218
Diesel engines 219
Diesel weights 220
Dimensions 221
Identification markings 222


Bonnnet 205
Petrol engine compartment 206
Diesel engine compar tment 207
Battery 192-194
Automatic cut of power supply to accessories 195
Checking components 214 -216 - battery electrolyte - air filter - oil filter - particle emissions filter (Diesel) - brake pads / discs