2011 Citroen DS3 cooling
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37Monitoring
Warning lamp
is on
Cause
Action/Observations
Engine
autodiagnosis
system
fixed. 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
qualified workshop without delay.
flashing. The engine management system has
a fault. Risk of destruction of the catalytic conver ter.
Have it checked by a CITROËN dealer or a qualified
workshop.
Low fuel level
fixed. When it first comes on there remains
approximately 5 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 sufficient addition of fuel
is made.
Fuel tank capacity: approximately 50 litres (petrol) or
46 litres (Diesel); depending on version: approximately
30 litres (petrol or Diesel).
Never continue to drive until you run out of fuel as
this could damage the emission control and injection
systems.
Maximum coolant
temperature
fixed 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
qualified workshop.
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With the engine running, when the needle is:
- in zone A
, the temperature is correct,
- in zone B
, the temperature is too high;
the central STOP
warning lamp and the
maximum temperature warning lamp 1
come on in red, accompanied by an audible
signal and a message in the multifunction
screen.
You must stop as soon as it is safe to do so.
Wait a few minutes before switching off the
engine.
Contact a CITROËN dealer or a qualified
workshop.
Coolant temperature indicator
After driving for a few minutes, the temperature
and pressure in the cooling system increase.
To top up the level:
)
wait for the engine to cool down,
)
unscrew the cap by two turns to allow the
pressure to drop,
)
when the pressure has dropped, remove
the cap,
)
top up the level to the "MA X" mark.
Page 66 of 324
Vent ilat ion
Air intake
The air circulating in the passenger compar tment
is filtered and originates either from the outside
via the grille located at the base of the windscreen
or from the inside in air recirculation mode.
Air treatment
The incoming air follows various routes
depending on the controls selected by
the driver:
- direct arrival in the passenger compartment
(air int ake),
- passage through a heating circuit (heating),
- passage through a cooling circuit (air
conditioning).
The temperature control enables you to obtain
the level of comfor t required by mixing the air of
the various circuits.
The air distribution control enables you to
diffuse the air in the passenger compar tment
combining several air vents.
The air flow control enables you to increase or
reduce the speed of the ventilation blower.
Control panel
The controls of this system are grouped
together on control panel A
on the centre
console. Depending on the model, the functions
offered are:
- the level of comfor t required,
- air flow,
- air distribution,
- demisting-defrosting,
- manual or digital air conditioning controls.
Air distribution
1.
Windscreen demisting-defrosting vents.
2.
Front side window demisting-defrosting
vents.
3.
Side adjustable air vents.
4.
Central adjustable air vents.
5.
Air outlets to the front footwells.
6.
Air outlets to the rear footwells.
Page 74 of 324
It is possible to adjust one or more functions
manually while leaving the other functions in
automatic mode.
The "AU TO "
symbol switches off.
To return to automatic mode, press the "AU TO "
button.
Manual override
4. Air conditioning on/off
For maximum cooling or heating of the
cabin, it is possible to go beyond the
minimum 14 or maximum 28 values.
)
Press the blue button 2
until "LO"
is displayed or the red button 2
until
"HI"
is displayed. Press this button to switch off the air
conditioning.
Stopping the air conditioning may cause
some problems (humidity, misting).
Automatic operation of the air conditioning is
resumed when the button is pressed again. The
symbol "A /C "
is displayed.
5. Air intake/Air recirculation
Press this button for recirculation of
the interior air. The air recirculation
symbol 5
is displayed.
Air recirculation enables the passenger
compar tment to be isolated from exterior
odours and smoke.
Press this button again or press the "AU TO "
button to resume automatic management of
the intake of air. The air recirculation symbol 5
goes off.
Avoid prolonged recirculation of interior
air (risk of condensation or deterioration
of the air quality). Switching to manual mode may not be
suitable (temperature, humidity, odour,
condensation) and does not provide
optimum comfort.
Page 186 of 324
Changing the coolant
The coolant does not have to be changed.
Fluid specifi cation
The coolant must conform to the
manufacturer's recommendations.
Screenwash fluid level
Fluid specifi cation
For optimum cleaning and to avoid freezing,
this fluid must not be topped up or replaced
with water.
Take care when carrying out checks
under the bonnet as some parts of the
engine can be very hot (risk of burns).
Coolant level
Top up the level when necessary.
The coolant level should be close
to the "MA X" 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 ignition off.
On vehicles which are fitted with a par ticle
emission filter, 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 pressure to drop.
When the pressure has dropped, remove the
cap and top up the level.
Page 216 of 324
Fuse table
Fuse N°
Rating
Functions
F1
20 A
Engine control unit supply, cooling fan unit control relay, multifunction engine control main relay, injection pump
(Diesel).
F2
15 A
Horn.
F3
10 A
Front/rear screenwash.
F4
20 A
LED lamps.
F5
15 A
Diesel heater (Diesel), par ticle filter additive pump (Diesel), air flow sensor (Diesel), blow-by heater and
electrovalves (VTi).
F6
10 A
ABS/ESP control unit, secondary stop switch.
F7
10 A
Electric power steering, automatic gearbox.
F8
25 A
Starter control.
F9
10 A
Switching and protection unit (Diesel).
F10
30 A
Fuel heater (Diesel), blow-by heater (Diesel), fuel pump (VTi), injectors and ignition coils (petrol).
F11
40 A
Heater blower.
Page 218 of 324
Table of maxi-fuses
Fuse N°
Rating
Functions
MF1 *
60 A
Fan assembly.
MF2 *
30 A
ABS/ESP pump.
MF3 *
30 A
ABS/ESP electrovalves.
MF4 *
60 A
Built-in Systems Inter face (BSI) supply.
MF5 *
60 A
Built-in Systems Inter face (BSI) supply.
MF6 *
30 A
Additional cooling fan unit (THP).
MF7 *
80 A
Dashboard fusebox.
MF8 *
-
Not used.
*
The maxi-fuses provide additional protection for the electrical systems. All work on the maxi-fuses must be carried out by a CITROËN dealer or a
qualified workshop.
Page 226 of 324
The rear parking sensors will be
deactivated automatically if a genuine
CITROËN towbar is used.
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 incline
depends on the gradient and the ambient
temperature.
In all cases, keep a check on the coolant
temperature.
Braking
Towing a trailer increases the braking distance.
Ty r e s
)
Check the tyre pressures of the towing
vehicle and of the trailer, obser ving the
recommended pressures.
Lighting
)
Check the electrical lighting and signalling
on the trailer.
)
If the warning lamp and the
STOP
warning lamp come on,
stop the vehicle and switch off
the engine as soon as possible.
RACING towbar
Your vehicle cannot be fitted with a
towbar. The space occupied by the
spor t diffuser prevents this.