2008.5 Citroen NEMO check engine

44
Gearbox and steering wheel
Stopping - Starting on a gradient
This is an electronic gearbox system without
a clutch pedal.
To immobilise the vehicle on a gradient,
you must use the parking brake and not
the accelerator.
When starting on a gradient, accelerate
gradually while releasing the parking brake.
Changing to sequential mode
Once you have started the engine, you
can go into sequential mode by selecting
position M.
Changing to automatic mode
When in sequential mode, you can return to
automatic mode by selecting position A.
Stopping the vehicle
Before switching off the engine, you can:
- select position N to engage neutral.
- leave a gear engaged, such as first or
reverse gear.
In either case, you must engage the parking
brake to immobilise the vehicle.
Reinitialising
Following a battery disconnection, you must
reinitialise the gearbox:
- switch on the ignition, "AUTO" appears
on the instrument panel display,
- press on the brake pedal,
- wait for about 30 seconds until "N" or
a gear appears on the instrument panel
display,
- release the brake pedal.
The gearbox is now operational again.
Operating anomaly
"AUTO" is displayed and the
gear selected appears on the
instrument panel display.
The gearbox operates in
automatic mode, without the need for driver
intervention.
It always selects the gear best suited to the
following parameters:
- driving style,
- road profile,
- vehicle load.
To maximise driving comfort and obtain the
most suitable gear, avoid making rough
movements on the accelerator pedal.
If you press the accelerator beyond the point
of resistance, the gearbox selects the next
gear down to allow for faster acceleration.
"AUTO" disappears and
the gears selected appear
successively on the instrument
panel display.
Gear change requests are only possible if
the engine speed allows them.
Gently lift your foot from the accelerator
pedal to select the gear.
When driving at low speed (e.g. approaching
a stop sign or at traffic lights), the gearbox
automatically changes down to first gear.
With the ignition switched on, the
fl ashing of "AUTO" and the lighting
of this warning lamp, accompanied
by a sound signal and a message on
the instrument panel display, indicate a gearbox
malfunction.
Have the system checked by your CITROËN dealer.
You must always press the brake pedal down when starting the engine. When the vehicle is moving, never select neutral N.Only select reverse gear R with the vehicle stationary and your foot on the brake pedal.In all cases, you must engage the parking brake to immobilise the vehicle.When on a steep gradient, you are advised to use sequential mode.

102
Towing a trailer
In certain cases of particularly arduous
use (towing the maximum load up a steep
slope in high temperatures), the engine
automatically limits its power. In this
case, the automatic cutting off of the air
conditioning allows the engine power to be
recovered.
If the coolant temperature
warning light comes on, stop the
vehicle and switch off the engine
as soon as possible.
See the "Levels" section of chapter 7.
Tyres: check the tyre pressures of the
towing vehicle (see the "Identification
features" section of chapter 7) and of
the trailer, observing the recommended
pressure.
Brakes: towing increases the braking
distance. Drive at a moderate speed,
change down early and brake gradually.
Side wind: sensitivity to side wind is
increased. Drive smoothly and at a
moderate speed.
ABS: the system only controls the vehicle,
not the trailer.
Rear parking assistance:
the assistance will be deactivated
automatically when a CITROËN towbar is
used (see the "Rear parking assistance"
section of chapter 4).
Towbar
We recommend the use of CITROËN
towbars and their harnesses, which have
been tested and approved from the design
stage of your vehicle, and that the fitting of
this equipment is entrusted to a CITROËN
dealer .
If this equipment is not fitted by a CITROËN
dealer , it is essential that it is fitted using
the electrical pre-equipment located at the
rear of the vehicle in accordance with the
manufacturer ’s instructions.
The operation of the sensors is deactivated
automatically when the pin of the trailer
cable is inserted in the towbar socket.
When the trailer cable pin is removed, the
sensors are re-activated.
Distribution of loads
Distribute the load in the trailer so that the
heaviest objects are as close as possible
to the axle and the nose weight is close to
the maximum authorised without, however,
exceeding it. The air density decreases with
altitude, so reducing the performance of
the engine. The maximum towed load must
be reduced by 10 % for each 1 000 metres
of altitude. Refer to the "Technical data"
chapter for details of the weights and towed
loads applicable to your vehicle and also to
the administrative documents
(V5 registration document, etc.).

105
7
TROUBLESHOOTING
Battery
BATTERY

A. Positive metal point on your vehicle

B. Slave battery

C. Earth on your vehicle
CHARGING THE BATTERY USING A CHARGER
- disconnect the battery,
- follow the instructions for use given by
the battery charger manufacturer,
- reconnect starting with the negative (-) terminal,
- check that the terminals and connectors are clean. If they are covered with
sulphate (white or greenish deposit),
disconnect them and clean them. The charging operation must be carried
out in a ventilated area away from naked
fl ames or any possible sources of sparks to
eliminate the risk of explosion and fi re.
Do not attempt to charge a frozen battery: it
must first be thawed to eliminate the risks of
explosion. If the battery has frozen, before
charging it have it checked by a specialist
who will check that the internal components
have not been damaged and that the
container is not cracked, which could mean
that there is a risk of a leak of toxic and
corrosive acid.
STARTING FROM ANOTHER BATTERY
- connect the red cable to the metal point
A then to the positive (+) terminal of the
slave battery B ,
- connect one end of the green or black cable to the negative (-) terminal of the
slave battery B ,
- connect the other end of the green or black cable to the earth point C on your
vehicle,
- operate the starter, let the engine run,
- wait for the engine to return to idle, then disconnect the cables.

122
Fuel
FILLING WITH FUEL
Low fuel level
When the minimum fuel tank
level is reached, this warning
light comes on. At this moment,
you have approximately 6 litres
remaining. Fill up without delay to avoid
running out of fuel.
The fuel tank must be filled with the engine
off .
- Open the fuel filler flap.
- Hold the cap with one hand.
- With the other hand, insert the key and turn it a third of a turn.
- Remove the cap. When the fuel filler flap is open, a
safety system prevents sliding of the
side door.
A label affixed to the inside of the flap
reminds you of the type of fuel to be used.
When filling the fuel tank, do not continue
after the 3rd cut-off of the nozzle. This could
cause malfunctions.
The capacity of the fuel tank is
approximately 45 litres.
After filling the fuel tank, lock the cap and
close the flap.
FUEL CIRCUIT DEACTIVATED
In the event of a serious collision, a device
automatically cuts off the fuel supply to the
engine and the vehicle’s electrical supply.
This also automatically unlocks the doors
and switches on the interior lights.
A message is displayed on the instrument
panel (depending on model).
Turn the key to position STOP to avoid the
battery being discharged.

Check that there is no smell or leak of fuel
outside the vehicle.
Reactivating
To continue driving, manually re-establish
the fuel supply and the electrical supply:
- with the ignition key in position STOP,
turn it to position RUNNING,
- move the direction indicators control stalk all the way upwards,
- put it to position "Stop",
- move the direction indicators control stalk all the way downwards,
- put it to position "Stop" again,
- move it all the way upwards again,
- put it to position "Stop" again,
- move it all the way downwards again,
- put it to position "Stop" again,
- turn the ignition key to position STOP.

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7
TROUBLESHOOTING
Levels
These regular maintenance operations
will keep your vehicle in good
running order. Consult the instructions at a
CITROËN dealer or in the servicing booklet
enclosed in the handbook pack.
LEVELS

Oil level
Check the level regularly and top up
between changes. The maximum
consumption is 0.5 l per 600 miles
(1 000 km). Check the level with the vehicle
level, engine cold, using the dipstick.

Dipstick
There are two marks on the
dipstick:
A = maximum
If you fill past this mark,
consult a CITROËN dealer .
B = minimum
Never allow the level to fall
below this mark.
To maintain the reliability of engines and
emission control systems, the use of
additives in engine oil is prohibited.
Oil change
It is imperative that this is carried out at the
intervals specified and the viscosity grade of
the oil selected must fulfil the requirements
in accordance with the manufacturer ’s
servicing schedule. Consult the instructions
at a CITROËN dealer .
Remove the dipstick before filling.
Check the level after filling (never exceed
the maximum mark).
Screw the cap back onto the sump before
closing the bonnet.
Changing the brake fluid
The brake fluid must be changed at
the intervals stated, according to the
manufacturer ’s servicing schedule.
Use fluids recommended by the
manufacturer, which fulfil DOT4 standards.
The level must be between the MIN and

MAX marks on the reservoir.
If fluid has to be added frequently, this
indicates a failure which must be checked by
a CITROËN dealer as soon as possible.

Warning lights
Checking by means of the warning
lights on the instrument panel is
described in chapter 1, refer to the
"Instruments and controls" section.

128
Levels

Cooling system
Only use the fluid recommended by the
manufacturer. Otherwise, you risk seriously
damaging your engine. When the engine
is warm, the temperature of the coolant is
controlled by the engine fan. As this fan can
operate with the ignition key removed and
because the cooling system is pressurised,
wait for at least one hour after the engine
has stopped before carrying out any work.
To avoid any risk of burns, unscrew the cap
2 turns to release the pressure. When the
pressure has fallen, remove the cap and top
up the level with coolant.
If fluid has to be added frequently, this
indicates a failure which must be checked by
a CITROËN dealer as soon as possible.
Topping up
The level must be between the MIN and

MAX marks on the expansion bottle. If
more than 1 litre of fluid is required to top
up the level, have the system checked by a
CITROËN dealer .

Power steering fluid level
The vehicle must be parked on level ground with
the engine cold. Unscrew the cap integrated with
the gauge and check the level which must be
between the MIN and MAX marks.

Windscreen wash level
For best quality cleaning and for your safety,
we would advise that you use products of
the CITROËN Universal range.
Capacity of the reservoir: approximately
5.5 litres.
Used oil
Avoid prolonged contact of used oil with the
skin.
Brake fluid is harmful to health and very
corrosive.
Do not dispose of used oil, brake fluid or
coolant into drains or into the ground but
into the containers dedicated to this use at a
CITROËN dealer .

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7
TROUBLESHOOTING
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 filter and passenger compartment
filter
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.