2009 Citroen NEMO air filter

81
4
ERGONOMICS and COMFORT
Ventilation
DE-ICING AND DEMISTING
Windscreen
The ventilation outlets located at the base
of the windscreen and the side vents for the
side windows increase the effectiveness of
the de-icing and demisting. Do not obstruct
these eight air outlets.
The manual air conditioning consists of the
pollen filter and air recirculation.
The pollen filter permits continuous and
effective filtering of dust.
The air recirculation (which can be activated
by the driver or the passenger) isolates the
passenger compartment from the exterior
atmosphere. However, this position should
only be used temporarily, the norm is to
drive with the control positioned with the
exterior air intake open.
Manual mode
Direct the control to this air
distribution setting.
For faster and more effective
de-icing and demisting of the
windscreen: - increase the air flow setting,
Returning to the exterior air intake
position permits renewal of the air
in the passenger compartment.
Rear screen and mirrors de-icing
This function only operates when
the engine is running. Pressing
this button activates the rapid
demisting/de-icing of the rear
screen and mirrors. This function switches
off automatically to prevent an excessive
consumption of energy. It switches off when
the engine is switched off. Pressing this
button switches the function off.
- move the exterior air intake
control temporarily to air
recirculation.

82
Ventilation
CORRECT USE OF THE AIR CONDITIONING
For even air distribution, ensure that the
exterior air intake grille located at the base of
the windscreen is not obstructed and that the
side and central vents, the air outlets on the
fl oor and the air extractor at the rear are open.
The air conditioning is useful in all seasons as
it eliminates condensation and air humidity. Operate the air conditioning system for
5 to 10 minutes, once or twice a month,
to keep it in perfect working order.
Have the filter elements (air filter and
passenger compartment filter) replaced
regularly. If you drive in a dusty environment,
have them replaced twice as often.
It is normal that the condensation created by
the air conditioning system results in a flow
of water which may form a puddle under the
vehicle when parked.
If the system does not produce cold air, do
not use it and contact a CITROËN dealer. VENTS
For optimum distribution and diffusion of hot
or cool air in the passenger compartment,
there are:
- 2 adjustable central vents,
- 2 adjustable and closing side vents,
- 2 vents directed towards the floor of the vehicle.
In order to be effective, the air conditioning
should only be used with the windows
closed. However, if the interior temperature
remains high after a prolonged period
parked in the sun, do not hesitate to
ventilate the passenger compartment for a
few minutes.

132
Under the bonnet
Diesel engine
UNDER THE BONNET

4. Brake and clutch fluid reservoir.

5. Air filter.
6. Dipstick.

7. Engine oil filler cap.

8. Power steering fluid reservoir.

1. Windscreen wash reservoir.

2. Fuse box.

3. Engine coolant reservoir.

133
7
TROUBLESHOOTING
Under the bonnet
Petrol engine
UNDER THE BONNET

4. Brake and clutch fluid reservoir.

5. Air filter.

6. Dipstick.
7. Engine oil filler cap.

8. Power steering fluid reservoir.

1. Windscreen wash reservoir.

2. Fuse box.

3. Engine coolant reservoir.

136
Checks
CHECKS

Bleeding the water contained in the
diesel filter
If this warning light comes on,
bleed the filter, otherwise bleed
regularly each time the engine is
drained.
To evacuate the water, unscrew the bleed
screw or the water in diesel sensor, located
at the base of the filter. Operate until all
of the water has been drained out. Then
tighten the bleed screw or the water sensor.
HDi engines use advanced technology. All
work requires a special qualification which is
guaranteed by a CITROËN dealer.

Battery
At the start of winter, have it checked by a
CITROËN dealer.
Air fi lter and passenger compartment fi lter
A clogged passenger compartment filter
may reduce the performance of the
air conditioning system and generate
undesirable odours. The replacement
intervals for these components are indicated
in the servicing booklet.
Depending on the environment (dusty
atmosphere...) and the use of the vehicle
(urban driving...), change them twice as
often if necessary, refer to the "Under the
bonnet" section of chapter 7.

Brake pads
Brake pad wear depends on the style of
driving, in particular for vehicles which are
used in town, over short distances. It may
be necessary to check the thickness of the
pads, even between services.
Unless there is a leak on the circuit, a drop
in the brake fluid level indicates that the
brake pads are worn.

Brake disc/drum wear status
For any information relating to checking
the brake disc/drum wear status, consult a
CITROËN dealer.
Handbrake
Where the handbrake travel is too great
or there is a reduction in the performance
of the system, the handbrake should be
adjusted, even between services.
Have it checked by a CITROËN dealer.

Oil filter
Change the filter regularly, in accordance
with the servicing schedule.
Manual gearbox
Have the level checked in accordance with
the manufacturer ’s servicing schedule.
To check the main levels and certain
components, in accordance with the
manufacturer ’s servicing schedule, refer
to the pages of the servicing booklet which
correspond to your vehicle’s engine.
Only use products recommended by
CITROËN or products of equivalent quality
and characteristics.
In order to optimise the operation of units as
important as the braking circuit, CITROËN
selects and offers specific products.
In order to avoid damaging the electrical
units, high pressure washing to clean the
engine compartment is strictly prohibited.