2009 Citroen NEMO DAG check engine light

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7
TROUBLESHOOTING
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.
- Support the cap with one hand.
- With the other hand, insert the key, then 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.
It also triggers the automatic unlocking of
the doors and switching on of the courtesy
lights. A message appears on the instrument
panel display according to version.
Turn the key to the STOP position to prevent
discharging of the battery.
Check that there is no smell or leak of fuel
outside the vehicle.
Re-activation
To set off again, restore the fuel supply and
the electrical supply manually:
- with the key in the STOP position, turn
the key to the RUNNING position,
- push the direction indicators control up fully,
- place it in the "Off" position,
- press the direction indicators control down fully,
- return it to the "Off" position,
- push it up fully again,
- return it to the "Off" position,
- press it down fully again,
- return it to the "Off" position,
- turn the key to the STOP position.

134
Levels These regular maintenance operations
will keep your vehicle in good
running order. Consult the instructions at
a CITROËN dealership 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 dealership.
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.

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 filter and passenger compartment
filter
A clogged passenger compartment fi lter 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.