cooling Citroen DS5 HYBRID4 2012 1.G Owner's Manual

This system does not work continuously,
but adapts the force of the fan cooling to the requirements of the battery.
Its operation can be heard at the rear, even if
the vehicle is stopped after a run.
If the air intake is blocked, the battery may
overheat, damaging the battery and causing a
loss of performance of the hybrid system.







Fan cooling of the high voltage battery


For the best use of the high voltagebattery, please follow theserecommendations:


- do not obstruct the air intake with loose articles, otherwise, the battery may overheat, causing aloss of performance of the hybridsystem

- do not spill fluids, as this may cause damage to the battery.


The high voltage battery has an air cooling system, comprising an air intake(located on the side of the left hand rear seat) and a fan (located behind the lefthand boot trim panel).

Coolant temperature
gauge
With the hybrid system active:
- in zone A
, the temperature is correct,
- in zone B, the temperature is too high; the central STOP
warning lamp comes on,
accompanied by an audible signal and amessage in the instrument panel 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.
A
fter 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, )
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 "MAX" mark.

Be aware of the risk of burns whentopping up the cooling system. Do not fill above the maximum level (indicated on the reservoir).

103Comfort
These have one position for use (up) and a stowed position (down).
They can also be removed.
To remove a head restraint: ) release the backrest using control 1,)
tilt the backrest 2
slightly forwards, )
pull the head restraint upwards to the stop, )
then, press the lug A.
Rear head restraints

Never drive with the head restraintsremoved; they must be in place and correctly adjusted.









Fan cooling of the high voltage battery


This system does not work continuously,
but adapts the force of the fan cooling to the
requirements of the battery.
Its operation can be heard at the rear, even if
the vehicle is stopped after a run.
If the air intake is blocked, the batter
y mayoverheat, damaging the battery and causing a
loss of performance of the hybrid system.
For the best use of the high voltage battery, please follow these recommendations: - do not obstruct the air intake with loose ar ticles, other wise, the battery may overheat, causing a loss of performance of the hybrid system- do not spill fluids, as this may cause damage to the battery.
The high voltage battery has an air cooling system, comprising an air intake
(located on the side of the left hand rear seat) and a fan (located behind the lefthand boot trim panel).

115
Comfort
4. Automatic visibilityprogramme


For maximum cooling or heating of thepassenger compar tment, it is possibleto exceed the minimum value 14 or themaximum value 28.)
Turn control 2or 3
to the left until "LO"is displayed or to the right until "HI"
is displayed. See "Front demistin
g - defrosting".


2-3. Driver's-passenger's side
settings
The driver and front passenger can each adjust the temperature to their requirements.
The value indicated on the display corresponds to a level of comfor t and not to a
temperature in degrees Celsius or Fahrenheit.
)Turn control 2or 3to the left or to the right respectively to decrease or increase this
value.
A setting around the value 21 provides optimumcomfort. However, depending on your requirements,
a setting between 18 and 24 is normal. You are advised to avoid a left / right settingdifference of more than 3.

Manual operation

If you wish, you can make a different choice from that offered by the system by changing asetting. The "AUTO"
indicator lamps go off; theother functions, except the air conditioning, willstill be controlled automatically.)
Pressing the "AUTO"
button returns the system to completely automatic operation.
With Stop & Start, when demisting hasbeen switched on, the Diesel engine does not stop.

227Practical information

We recommend the use of genuine
CITROËN towbars and their harnesses that have been tested and approvedfrom the design stage of your vehicle,and that the fitting of the towbar is
entrusted to a CITROËN dealer or aqualified workshop.
If the towbar is not fitted by a CITROËN dealer, it is imperative that it isfitted in accordance with the vehiclemanufacturer's instructions.
Driving advice
Distribution of loads
)
Distribute the load in the trailer so that the
heaviest items are as close as possible to
t
he 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 b
y 10 % for every 1 000 metres of altitude.
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 electrically controlled, its cooling capacity is not dependent on the engine speed. )
To lower the engine speed, reduce your speed.
)If the warning lamp and the STOP
warning lamp come on,
stop the vehicle and switch off
the engine as soon as possible.

Braking

To w i ng a trailer increases the braking distance.
To avoid overheating of the brakes on a long
mountain type of descent, the use of enginebraking is recommended.

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



Lighting
)
Check the electrical lighting and signalling on the trailer.



The rear parking sensors will be deactivated automatically if a genuineCITROËN towbar is used.



Driving with a trailer places greater demands on the towing vehicle and the driver must take par ticular care.
The maximum towed load on a long incline depends on the gradient and the ambient
tem
perature.
In all cases, keep a check on the coolant
temperature.
R
efer to the "Technical Data" section for details
of the weights and towed loads which apply toyour vehicle.

239Checks
Coolant level
The coolant level should be closeto the "MA X" mark but should never exceed it.


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


Coolant specifi cation

The coolant must conform to the
manufacturer's recommendations.

Power steering fluid
level
The power steering fluid level should
be close to the "MA X" mark. Unscrew
the cap, with the engine cold,
to check the level. 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 the inter val for
this operation.

Fluid specifi cation

The brake fluid must conform to themanufacturer's recommendations and meet the
DOT4 standard.
In addition, as the cooling system ispressurised, wait at least one hour after
switching off the engine before carrying out any work. To avoid any risk of scalding, unscrewthe cap by two turns to allow the pressure to drop. When the pressure has dropped, remove the cap and topup the level. When the en
gine 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 particle
emission filter, the fan may operate after
the vehicle has been switched off, even if
the engine is cold
.