2011 Citroen C4 RHD engine coolant

1
MONITORING
32
Warning and indicator lamps
Visual indicators which inform the driver of the occurrence of a malfunction (warning
lamp) or of the operation of a system (operation or deactivation indicator lamp).

When the ignition is switched on
Certain warning lamps come on for a few seconds when the ignition is switched on.
When the engine is started, these warning lamps should go off.
If they remain on, before moving off, refer to the information on the warning lamp
in question.

Associated warnings
The illumination, fi xed or fl ashing, of certain warning lamps may be accompanied
by an audible signal and a message in the multifunction screen or in the central
colour screen associated with the satellite navigation system.

Warning lamps

When the engine is running or the vehicle is being driven, the illumination of one of the follow-
ing warning lamps indicates a malfunction which requires action on the part of the driver.
The warning comes on in the instrument panel or appears in the central colour screen
associated with the satellite navigation system.
If your vehicle has a screen,
a warning lamp coming on is
always accompanied by the dis-
play of an additional message,
to assist you in identifying the
problem.
If you encounter any problems,
do not hesitate to contact a
CITROËN dealer or a qualifi ed
workshop.



Warning lamp



is on



Cause



Action/Observations




STOP


fi xed, alone
or associated
with another
warning lamp,
accompanied by
an audible signal
and a message in
the screen. Illumination of this warning
lamp is associated with
a serious braking system,
power steering, engine
lubrication or cooling system
malfunction or a punctured
tyre. Stop as soon as it is safe to do so as
there is a risk that the engine will cut out
while driving.
Park, switch off the ignition and contact a
CITROËN dealer or a qualifi ed workshop.


Maximum
coolant
temperature


fi xed red. The temperature of the
cooling system is too high. Stop as soon as it is safe to do so.
Wait until the engine has cooled down
before topping up the level, if necessary.
If the problem persists, contact a
CITROËN dealer or qualifi ed workshop.

10
172
PETROL ENGINES
The various caps and covers allow access for checking the levels of the various fl uids and for replacing certain components.


1.
Power steering reservoir.

2.
Screenwash and headlamp wash
reservoir.

3.
Coolant reservoir.
4.
Brake fl uid reservoir.

5.
Battery/Fuses.

6.
Fusebox.
7.
Air fi lter.

8.
Engine oil dipstick.

9.
Engine oil fi ller cap.

10
173
*
According to engine.
DIESEL ENGINES

The various caps and covers allow access for checking the levels of the various fl uids, for replacing certain components and
for priming the fuel system.


1.
Power steering reservoir.

2.
Screenwash and headlamp wash
reservoir.

3.
Coolant reservoir.
4.
Brake fl uid reservoir.

5.
Battery/Fuses.

6.
Fusebox.

7.
Air fi lter.
8.
Engine oil dipstick.

9.
Engine oil fi ller cap.

10.
Priming pump * .

11 .
Bleed screw * .

10
CHECKS
174
CHECKING LEVELS
Check all of these levels regularly and
top them up if necessary, unless other-
wise indicated.
If a level drops signifi cantly, have the corre-
sponding system checked by a CITROËN
dealer or a qualifi ed workshop.

When working under the bon-
net, take care, as certain areas
of the engine may be extremely
hot (risk of burns).

The reading will only be correct if
the vehicle is on level ground and
the engine has been off for more
than 30 minutes.
The check is carried out either when the igni-
tion is switched on using the oil level indicator
in the instrument panel, or using the dipstick.

Oil level


Engine oil change
Refer to the Maintenance and Warranty
Guide for the interval for this operation.
In order to maintain the reliability of the
engine and emission control system,
the use of additives in the engine oil is
prohibited.

Oil specifi cation
The oil must correspond to your engine
and conform to the manufacturer's rec-
ommendations.



Brake fluid level

The brake fl uid level should be
close to the "MAX" mark. If it is
not, check the brake pad wear.

Changing the fl uid
Refer to the Maintenance and Warranty
Guide for the interval for this operation.

Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations and
meet the DOT4 standard.



Power steering fluid level

The power steering fl uid level
should be close to the "MAX"
mark. Unscrew the cap, with the
engine cold, to check the level.
Coolant level

The coolant level should be
close to the "MAX" 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 igni-
tion off.

On vehicles which are fi tted with a par-
ticle emission fi lter, the fan may operate
after the vehicle has been switched off,
even if the engine 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 pres-
sure 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.

Coolant specifi cation
The coolant must conform to the manu-
facturer's recommendations.

11
PRACTICAL INFORMATION
203
TOWING A TRAILER,
A CARAVAN, ETC.
We recommend the use of genu-
ine CITROËN towbars and their
harnesses that have been tested
and approved from the design
stage of your vehicle, and that
the fi tting of the towbar is en-
trusted to a CITROËN dealer or
a qualifi ed workshop.
If the trailer is not fi tted by a
CITROËN dealer, it is imperative
that it is fi tted using the vehicle's
electrical pre-equipment, in ac-
cordance with the manufacturer's
instructions. The rear parking sensors will
be deactivated automatically if
a genuine CITROËN towbar is
used.

Towbar suitable for the attachment of a
trailer or caravan with additional lighting
and signalling.
Your vehicle is primarily designed for
transporting people and luggage, but it
may also be used for towing a trailer. Driving with a trailer places greater de-
mands on the towing vehicle and the
driver must take particular care.


Driving advice


Distribution of loads


)
Distribute the load in the trailer so
that the heaviest 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 towed load
must be reduced by 10 % for every
1 000 metres of altitude.
Refer to the "Technical Data" section for
details of the weights and towed loads
which apply to your vehicle.

Side wind


)
Take into account the increased
sensitivity to side wind.


Cooling
Towing a trailer on a slope increases
the temperature of the coolant.
As the fan is electrically controlled, its
cooling capacity is not dependent on
the engine speed.


)
To lower the engine speed, reduce
your speed. The maximum towed load on a long in-
cline depends on the gradient and the
ambient temperature.
In all cases, keep a check on the coolant
temperature.


)
If the warning lamp and the
STOP
warning lamp come
on, stop the vehicle and
switch off the engine as
soon as possible.


Braking
Towing a trailer increases the braking
distance.

Tyres


)
Check the tyre pressures of the towing
vehicle and of the trailer, observing the
recommended pressures.


Lighting


)
Check the electrical lighting and sig-
nalling on the trailer.

306
VISUAL SEARCH
TECHNICAL DATA - MAINTENANCE


Running out of Diesel fuel ............. 171

Checking levels ...................... 174-175


- oil

- brake fl uid

- coolant

- power steering fl uid

- screenwash/headlamp wash fl uid

- additive (Diesel with particle
emissions fi lter)


Changing bulbs....................... 187-192


- front

- rear

Petrol engines......................... 207-210
Diesel engines .........................211-212
Dimensions .................................... 213
Identifi cation markings ................... 214

Bonnet ........................................... 170
Petrol underbonnet ........................ 172
Diesel underbonnet ....................... 173
Checking components ............ 176-177


- battery

- air fi lter/passenger compartment
fi lter

- oil fi lter

- particle emissions fi lter (Diesel)

- brake pads/discs


Battery .................................... 197-199
Energy economy mode.................. 199

Engine compartment fuses .... 193, 196

307
ALPHABETICAL INDEX
A ABS and EBFD systems ............128
Accessories ................................205
Accessories
socket, 12 V ..... 109, 110, 112, 116
Adjusting headlamps ....................98
Adjusting head restraints ..............72
Adjusting seat belt height ............131
Adjusting the steering wheel ........77
Air conditioning (digital) ..........63, 66
Air conditioning (manual) .......63, 64
Air fi lter .......................................176
Air vents .......................................62
Alarm ............................................85
Anti-lock braking system
(ABS) ........................................128
Anti-pinch .....................................89
Anti-theft steering lock ..................80
Ashtray, portable ........................108
Assistance call ...................130, 216
Audible warning ..........................126
Audio streaming
(Bluetooth) ........................256, 282
Audio system ..................50, 52, 269
Automatic gearbox .............150, 177
Automatic illumination
of headlamps ........................94, 97
Automatic operation of hazard
warning lamps ..........................126
Automatic rain sensitive
windscreen wipers ............101, 102
Auxiliary sockets ........109, 278, 281
B Battery ................................176, 197
Battery, remote control ...........81, 82
Battery recharge .........................198
Bench seat, rear ...........................74
Black panel ...................................48B Blind spot sensors ......................157
Bluetooth (hands-free) .......240, 283
Bluetooth (telephone) .........240, 283
Bonnet ........................................170
Bonnet stay ................................170
Boot ..............................................88
Boot lamp ........................... 106, 117
Brake discs .................................177
Brake lamps ...............................191
Brake pads .................................177
Brakes ........................................177
Braking assistance system .........128
C Capacity, fuel tank ........................92
CD ..............................................276
CD MP3 ..............................253, 277
Central locking .......................79, 83
Centre console ........................... 110
Changing a bulb ..................187-192
Changing a fuse ..................193-196
Changing a wheel ...............183-186
Changing a wiper blade .....103, 200
Changing the date ..............259, 294
Changing the remote
control battery ............................81
Changing the time ........47, 259, 294
CHECK ...................................30, 46
Checking levels ..................174, 175
Checking the engine oil level .......43
Checking tyre pressures
(using the kit) ............................182
Checks ................................170-177
Child lock ....................................125
Children ........................ 90, 118-125,
133, 135, 139
Child seats ......................... 118-124
Cigarette lighter ..........................109
Clock ............................47, 259, 294C Closing the boot .....................79, 88
Closing the doors ...................79, 87
Cold climate screen ....................200
Colour and map
screen ..................55, 56, 221, 260
Connectors,
audio ................109, 257, 279, 281
Control stalk, wipers ............101-103
Coolant level ..............................174
Courtesy lamps ..........................104
Courtesy mirror ..........................108
Cruise control .....................160, 163
Cup holder .................................. 110
Curtain airbags ...................136, 137
Customisation ..............................49
D Dashboard fusebox ....................194
Date (display) .....................259, 294
Daytime running
lamps ..........................96, 187, 189
Deactivating
the passenger airbag ...............135
Deadlocking .................................79
Defrosting .....................................69
Diesel additive level ...................175
Diesel engine ....... 93, 171, 173, 211
Dimensions ................................213
Dipped beam ................94, 187, 189
Dipstick .................................43, 174
Directional lighting ................99, 100
Direction
indicators ....97, 126, 187, 188, 191
Door mirrors ...................75, 76, 157
Doors ............................................87
Doors emergency control .............84
Door pockets ..............................107
Dynamic emergency
braking .............................138, 141