2011.5 Citroen DS5 HYBRID4 RHD cooling

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 STOPwarning lamp comes on,
accompanied by an audible signal and amessage in the instrument panel screen.Youmuststop 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).

101Comfort
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).

113Comfort
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
optimum comfort. However, depending on your
requirements, a setting between 18 and 24 isnormal.
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.

225
Practical 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
the axle and the nose wei
ght 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 every1 000 metres of altitude.
Refer to the "Technical Data" section for details
of the weights and towed loads which apply toyour vehicle.
Side wind
)
Take into account the increased sensitivityto side wind.

Cooling
To w i ng a trailer on a slope increases the
temperature of the coolant.
As the fan is electricall
y 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 en
gine 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 engine
braking is recommended.


Tyres
)
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.

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 lon
g incline
depends on the gradient and the ambienttemperature.
In all cases, keep a check on the coolant
temperature.

237
Checks
Coolant level
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 bythe fan. This can operate with the ignition off.
On vehicles which are fitted with a par ticle
emission filter, the fan ma
y operate after
the vehicle has been switched off, even if
the en
gine is cold.

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 en
gine cold,
to check the level. Th
e brake fluid level should be closeto 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.