2011 Citroen C4 engine

1
MONITORING
36


Warning lamp



is on



Cause



Action/Observations




Anti-lock
Braking
System (ABS)


fi xed. The anti-lock braking system
has a fault. The vehicle retains conventional braking.
Drive carefully at reduced speed and
contact a CITROËN dealer or a qualifi ed
workshop without delay.


Dynamic
stability control
(ESP/ASR)


fl ashing. The ESP/ASR regulation is
active. The system optimises traction and
improves the directional stability of the
vehicle.

fi xed. Unless it has been
deactivated (button pressed
and its indicator lamp on), the
ESP/ASR or hill start assist
system has a fault. Have it checked by a CITROËN dealer or
a qualifi ed workshop.

Engine
autodiagnosis
system


fi xed. The emission control system
has a fault. The warning lamp should go off when the
engine is started.
If it does not go off, contact a CITROËN
dealer or qualifi ed workshop without delay.

fl ashing. The engine management
system has a fault. Risk of destruction of the catalytic converter.
Have it checked by a CITROËN dealer or
a qualifi ed workshop.


Low fuel level


fi xed with the two
last bars fl ashing.
When it fi rst comes on there
remains approximately
6 litres of

fuel
in the tank. You must refuel as soon as possible to
avoid running out of fuel.
This warning lamp will come on every
time the ignition is switched on, until a
suffi cient addition of fuel is made.
Fuel tank capacity: approximately 60 litres.
Never continue to drive until you run out
of fuel as this could damage the emission
control and injection systems.

1
MONITORING
37


Warning lamp



is on



Cause



Action/Observations




Airbags


temporarily. This lamp comes on for a few
seconds when you turn on the
ignition, then goes off. This lamp should go off when the engine
is started.
If it does not go off, contact a CITROËN
dealer or a qualifi ed workshop.

fi xed. One of the airbag or seat belt
pretensioner systems has a
fault. Have it checked by a CITROËN dealer or
a qualifi ed workshop.

Foot on the
clutch **


fi xed. In the STOP mode of Stop
& Start, changing to START
mode is refused because the
clutch pedal is not fully down. You must declutch fully to allow the
change to engine START mode.

**
Only on the two-tone instrument panel without audio system.
Power steering
fi xed. The power steering has a
fault. Drive carefully at reduced speed.
Have it checked by a CITROËN dealer or
a qualifi ed workshop.


Under-infl ated
tyre


fi xed. The pressure in one or more
wheels is too low. Check the pressure of the tyres as soon
as possible.
This check should preferably be carried
out when the tyres are cold.


Directional
headlamps


fl ashing. The directional headlamps
system has a fault. Have it checked by a CITROËN dealer or
a qualifi ed workshop.

1
MONITORING
38


Water in Diesel


fi xed. The Diesel fuel fi lter contains
water. Risk of damage to the injection system
on Diesel engines.
Contact a CITROËN dealer or a qualifi ed
workshop without delay.

Particle
emissions fi lter
(Diesel)
fi xed,
accompanied by
an audible signal
message on the
risk of blockage
of the particle
emissions fi lter. This indicates that the particle
emissions fi lter is starting to
become saturated. As soon as driving conditions allow,
regenerate the fi lter by driving at a speed
of at least 35 mph (60 km/h) until the
warning lamp goes off.
fi xed, accompanied
by an audible
signal and and a
message that the
particle emissions
fi lter additive level
is too low. This indicates the low level of
the additive reservoir. Have the reservoir topped up as soon
as possible by a CITROËN dealer or a
qualifi ed workshop.

Warning lamp



is on



Cause



Action/Observations

1
MONITORING
40


Warning lamp



is on



Cause



Action/Observations




Parking brake


fi xed. The parking brake is applied
or not properly released. Release the parking brake to switch off
the warning lamp, keeping your foot on
the brake pedal.
Observe the safety recommendations.
For further information on the parking
brake, refer to the "Driving" section.


Electric
parking brake


fi xed. The electric parking brake is
applied. Release the electric parking brake to
switch off the warning lamp: with your
foot on the brake pedal, pull the electric
brake control.
Observe the safety recommendations.
For more information on the electric
parking brake, refer to the "Driving"
section.


Deactivation of
the automatic
functions of
the electric
parking brake


fi xed. The "automatic application"
(on switching off the engine)
and "automatic release"
functions are deactivated or
faulty. Activate the function (according to
country) via the vehicle confi guration
menu or contact a CITROËN dealer or a
qualifi ed workshop.


Diesel engine
pre-heating


fi xed. The ignition switch is at the
2nd position (ignition on). Wait until the warning lamp goes off
before starting.
The period of illumination of the warning
lamp is determined by the climatic
conditions (up to about thirty seconds in
extreme climatic conditions).
If the engine does not start, switch the
ignition off and then on, wait until the
warning lamp goes off again, then start
the engine.

1
41

Passenger's
airbag system
fi xed in the
seat belt and
passenger's front
airbag warning
lamps display. The control switch, located
in the glove box, has been
placed in the "ON"
position.
The passenger's front airbag
is activated.
In this case, do not install a
"rear facing" child seat. Move the control switch to the "OFF"

position to deactivate the passenger's
front airbag.
In this case, you can install a "rear
facing" child seat.

Warning lamp



is on



Cause



Action/Observations




Stop & Start


fi xed. The Stop & Start system has
put the engine in STOP mode
at a vehicle stop (traffi c lights,
traffi c jam, or other...). The warning lamp goes off and the
engine restarts automatically in START
mode, as soon as you want to move off.

fl ashes for a few
seconds, then
goes off. STOP mode is temporarily
unavailable.
or
START mode is invoked
automatically. Refer to "Driving - § Stop & Start" for
special cases with STOP mode and
START mode.


Parking space
sensors


fi xed. The parking space sensors
function is selected. To start measurement, operate the direction
indicator on the side of the space to be
measured, and do not exceed 12 mph
(20 km/h). A message is displayed once the
measurement has been completed.

Automatic
wiping


fi xed. The wiper control is pushed
downwards.
Automatic front wiping is activated.


Lighting
rheostat


fi xed. The lighting rheostat is
making an adjustment. You can adjust the level of illumination of
the instruments between 1 and 16.

1
43
Engine oil level indicator
The vehicle must be on level
ground and the engine must
have been off for more than
30 minutes for this level check to
be accurate.
Oil level correct
This is indicated by the fl ashing of
"OIL"
or the display of a specifi c mes-
sage in the instrument panel, coupled
with the service warning lamp and ac-
companied by an audible signal.
If the low oil level is confi rmed by a
check using the dipstick, the level must
be topped up to avoid damage to the
engine.
Oil level indicator error

Dipstick
Refer to the "Checks" section to locate
the dipstick and the oil fi ller cap on your
engine.
Oil level incorrect This is indicated by the fl ashing of
"OIL--"
or the display of a specifi c mes-
sage in the instrument panel. Contact a
CITROËN or a qualifi ed workshop.
There are 2 marks on the
dipstick:


- A
= max; never exceed
this level (risk of dam-
age to the engine),

- B
= min; top up the level
via the oil fi ller cap, us-
ing the correct grade of
oil for your engine.

This information is displayed for a few
seconds when the ignition is switched
on, at the same time as the service in-
formation.

1
MONITORING
46
Manual test in the central colour screen associated with
the satellite navigation system
This function allows you to check the
status of the vehicle systems (reminder
of the "activated"/"deactivated" status
of the confi gurable functions) and to
display the alerts log.


)
With the engine running, to start a
manual test, briefl y press the ".../000"

button on the instrument panel. The following information appears suc-
cessively in the instrument panel cen-
tral colour screen:


- engine oil level indicator (see corre-
sponding section),

- service indicator (see corresponding
section),

- under-infl ation detection (if your ve-
hicle is fi tted with this system; see
the "Safety" section),

- current warnings and alert messag-
es, if any (see corresponding sec-
tion for the warning lamp or system
concerned),

- status of confi gurable functions (see
"Multifunction screens").
This information also appears every
time the ignition is switched on (au-
tomatic test).

3
COMFORT
63
RECOMMENDATIONS FOR VENTILATION AND AIR CONDITIONING
In order for these systems to be fully effective, follow the operation and
maintenance guidelines below:


)
To obtain an even air distribution, take care not to obstruct the exterior
air intake grilles located at the base of the windscreen, the nozzles,
the vents and the air outlets, as well as the air extractor located in the
boot.

)
Do not cover the sunshine sensor, located on the dashboard; this is
used for regulation of the digital air conditioning system.

)
Operate the air conditioning system for at least 5 to 10 minutes, once or
twice a month to keep it in perfect working order.

)
Ensure that the passenger compartment fi lter is in good condition and have
the fi lter elements replaced regularly (refer to the "Checks" section).
We recommend the use of a combined passenger compartment fi lter.
Thanks to its special active additive, it contributes to the purifi cation of
the air breathed by the occupants and the cleanliness of the passenger
compartment (reduction of allergic symptoms, bad odours and greasy
deposits).

)
To ensure correct operation of the air conditioning system, you are
also advised to have it checked regularly as recommended in the
Maintenance and Warranty Guide.

)
If the system does not produce cold air, switch it off and contact a
CITROËN dealer or a qualifi ed workshop.
When towing the maximum load on a steep gradient in high temperatures,
switching off the air conditioning increases the available engine power and
so improves the towing ability.
If after an extended stop in sun-
shine, the interior temperature is
very high, fi rst ventilate the pas-
senger compartment for a few
moments.
Put the air fl ow control at a set-
ting high enough to quickly
change the air in the passenger
compartment.
The air conditioning system
does not contain chlorine and
does not present any danger to
the ozone layer.

The condensation created by
the air conditioning results in a
discharge of water under the ve-
hicle which is perfectly normal.