2012 Citroen C4 RHD engine coolant

1
MONITORING
33









Warning and indicator lamps

Visual indicators which inform the driver of the occurrence of a malfunction (warn-
ing 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 instru-
ment panel central 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 instrument panel central
screen associated with the satellite navigation system.
If your vehicle has a screen, a
warning lamp coming on is al-
ways 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
CHECKS
176














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
CHECKS
177
*
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
178

























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
corresponding system checked by a
CITROËN dealer or a qualifi ed work-
shop.

When working under the bonnet,
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
ignition is switched on using the oil level
indicator in the instrument panel, or using
the dipstick.
It is normal to top up the oil level between
two services. CITROËN recommends that
you check the oil level, and top up if neces-
sary, every 3 000 miles (5 000 kilometres).

Oil level


Engine oil change
Refer to the servicing booklet 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
recommendations.



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 servicing booklet 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 ig-
nition off.

On vehicles which are fi tted with a par-
ticle emission fi lter, the fan may oper-
ate 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
207





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 towbar is not fi tted by a
CITROËN dealer, it is impera-
tive that it is fi tted in accordance
with the vehicle 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.
To avoid overheating of the brakes on a
long mountain type of descent, the use
of engine braking is recommended.

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.

314
VISUAL SEARCH
TECHNICAL DATA - MAINTENANCE


Running out of Diesel fuel ............. 175

Checking levels ...................... 178-179


- oil

- brake fl uid

- coolant

- power steering fl uid

- screenwash/headlamp wash fl uid

- additive (Diesel with particle
emissions fi lter)


Changing bulbs....................... 191-196


- front

- rear

Petrol engines..........................211-214
LPG engine............................. 215-216
Diesel engines ........................ 217-219
Dimensions .................................... 220
Identifi cation markings ................... 221

Bonnet ........................................... 174
Petrol underbonnet ........................ 176
Diesel underbonnet ....................... 177
Checking components ............ 180-181


- battery

- air fi lter/passenger compartment fi lter

- oil fi lter

- particle emissions fi lter (Diesel)

- brake pads/discs


Battery .................................... 201-202
Energy economy mode.................. 203

Engine compartment fuses .... 197, 200

315
ALPHABETICAL INDEX
A ABS and EBFD systems ............132
Accessories ................................209
Accessory socket,
12 V ................... 112, 113, 115, 119
Adjusting headlamps ..................102
Adjusting head restraints ..............73
Adjusting seat belt height ...135, 136
Adjusting the steering wheel ........78
Airbags, curtain ..................140, 141
Airbags, front ......................138, 141
Airbags, lateral ...................140, 141
Air conditioning .............................26
Air conditioning, digital ...........64, 67
Air conditioning, manual .........64, 65
Air fi lter .......................................180
Air fl ow .........................................26
Air vents .......................................63
Alarm ............................................86
Anti-lock braking system
(ABS) ........................................132
Anti-pinch .....................................90
Anti-theft .......................................81
Armrest, front ..................... 114, 115
Armrest, rear .............................. 117
Ashtray, portable ........................ 111
Assistance call ...................134, 224
Audible warning ..........................130
Audio streaming
(Bluetooth) ........................264, 290
Audio system ..................51, 53, 277
Automatic illumination
of headlamps ......................97, 100
Automatic operation of hazard
warning lamps ..........................130
Automatic rain sensitive
windscreen wipers ............105, 106
Auxiliary socket .......... 112, 265, 289B Battery ................................180, 201
Battery, charging ........................201
Battery, remote control ...........82, 83
Black panel ...................................49
Blind spot sensors ......................161
Bluetooth (hands-free) .......248, 291
Bluetooth (telephone) .................248
Bonnet ........................................174
Bonnet stay ................................174
Boot ..............................................89
Boot lamp ...........................109, 120
Brake discs .................................181
Brake lamps ...............................195
Brake pads .................................181
Brakes ........................................181
Braking assistance system .........132
C Capacity, fuel tank ........................93
CD ..............................................284
CD MP3 ..............................285, 286
Central locking .......................80, 84
Centre console ........................... 113
Changing a bulb .................191, 195
Changing a fuse .........................197
Changing a wheel ......................187
Changing a wiper blade .....107, 203
Changing the date ..............267, 302
Changing the remote
control battery ............................82
Changing the time ........48, 267, 302
CHECK ...................................31, 47
Checking levels ..................178, 179
Checking the engine oil level .......44
Checking tyre pressures
(using the kit) ............................182
Checks ...............176, 177, 180, 181
Child lock ....................................129C Children ......................124, 127, 128
Child seats ................ 121, 123-125
Cigar lighter ................................ 112
Clock ............................................48
Closing the boot .....................80, 89
Closing the doors ...................80, 88
Cold climate screen ....................204
Commandes au volant .......228, 279
Connectors, audio ...... 112, 287, 289
Coolant level ..............................178
Courtesy lamps ..................101, 108
Courtesy mirror .......................... 111
Cruise control .....................164, 167
Cup holder .................................. 113
D Date (setting) ..............................267
Daytime
running lamps .............97, 191, 193
Deactivating the passenger
airbag .......................................138
Deadlocking .................................80
Defrosting .....................................70
Diesel additive level ...................179
Dimensions ................................220
Dipped beam ................96, 191, 193
Dipstick .................................44, 178
Directional lighting ..............103, 104
Direction
indicators ....99, 130, 191, 192, 195
Doors ............................................88
Doors, rear .................................129
Doors emergency control .............85
Door trays ................................... 110
Dynamic
emergency braking ...........142, 145