check engine CITROEN RELAY 2015 Handbook (in English)

122
Under the bonnet
On the inside
This operation must only be carried out with the
vehicle stationary and the driver's door open.
Pull the release lever on the side of the
dashboard towards you.
On the outside
Push the safety catch lever located above
the grille to the right and raise the bonnet. Before closing the bonnet, put the stay back
in its housing.
Lower the bonnet and release it at the end of
its travel. Check that the bonnet has latched.
OPENING THE BONNET
Do not open the bonnet in strong
winds.
When the engine is hot, handle the safety
catch and stay with care (risk of burns). If the bonnet is not closed
correctly, this warning lamp
comes on in the instrument panel.
Before doing anything under the
bonnet, switch off the ignition with the
key to avoid any risk of injury resulting from
an automatic change to START mode.
CLOSING THE BONNET
Bonnet stay
Unclip the stay and tilt it to insert it in the
first notch, then the second.
Because of the presence of electrical
equipment under the bonnet, it is
recommended that exposure to water
(rain, washing, ...) be limited.

123
7
Under the bonnet
CHECKS
1. Windscreen/headlamp wash fluid reservoir.
2. Fusebox.
3. Coolant reservoir.
4. Brake and clutch fluid reservoir.
5. Air filter. 6. Dipstick.
2.2 Iitre HDi engine
7. Engine oil filler cap.
2.2 Iitre HDi engine
8. Power steering fluid reservoir.
Battery connections :
+ Positive terminal.
- Negative terminal (earth).
UNDER THE BONNET - DIESEL ENGINES

124
Levels and checks
Used products
Avoid prolonged contact of used oil or fluids
with the skin.
Most of these fluids are harmful to health or
indeed very corrosive.
Do not discard used oil or fluids into sewers
or onto the ground.
Take used oil to a CITROËN dealer or
a qualified workshop (France) or to an
authorised waste disposal site.
LEVELS
These regular maintenance operations
will keep your vehicle in good running
order. Ask for advice at a CITROËN dealer
or consult the maintenance and warranty
guide contained in the handbook pack.
To maintain the reliability of engines and
emission control systems, the use of
additives in engine oil is prohibited.
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 or a qualified workshop
as soon as possible.
If you have to remove/refit the
engine styling cover, handle it
with care to avoid damaging the
fixing clips. Dipstick
There are two marks on
the dipstick:
Oil change
It is imperative that this is carried out at the
intervals specified in the manufacturer's
servicing schedule. Ask for advice at at
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.
Viscosity selection
When topping-up, the oil selected must meet
the manufacturer's requirements.
Warning lamps
Checking by means of the warning
lamps on the instrument panel is
described in the "Ready to go -
Instruments and controls" section.
A
= maximum
If you fill past this mark,
contact a CITROËN dealer
or a qualified workshop.
B = minimum
Never allow the level to fall
below this mark.
Oil level
Check the level regularly and top up
between changes. The maximum
consumption is 0.5 litre per 600 miles
(1 000 km). Check the level with the vehicle
level, engine cold, using the dipstick.

125
7
CHECKS
Levels and checks
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.
Slacken the cap by 1/4 of a turn to release
the pressure to prevent any risk of scalding.
When the pressure has dropped, remove the
cap and top up the level with coolant.
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.
For access to the reservoir filler cap, remove
the protective cover by removing its three
fixing screws, then remove the second cover
fitted to the cap. 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 or a qualified workshop.
Windscreen wash and headlamp wash level
Capacity of the reservoir: approximately
5.5 litres.
For access to the reservoir filler cap, pull on
the telescopic filler pipe and unscrew the
cap a quarter of a turn.
For best quality cleaning and to prevent
freezing, this fluid must not be topped up or
replaced with plain water.
In wintry conditions, the use of an alcohol or
methanol based fluid is recommended.
For access to the header tank filler cap,
remove the protective cover by removing its
three fixing screws.
If fluid has to be added frequently, this
indicates a failure which must be checked by
a CITROËN dealer or a qualified workshop
as soon as possible.

126
Levels and checks

The presence of this label, in particular
with the Stop & Start system, indicates the
use of a specific 12 V lead-acid battery
with special technology and specification.
The involvement of a CITROËN dealer
or a qualified workshop is essential when
replacing or disconnecting the battery. These operations will keep your vehicle
in good running order. Ask for advice
from a CITROËN dealer or refer to the
maintenance and warranty guide included in
the handbook pack.
CHECKS
Battery
At the start of winter, have your battery
checked by a CITROËN dealer or a qualified
workshop.
Bleeding water from the Diesel filter
If this warning lamp comes on,
bleed the filter, or bleed regularly
each time the engine oil is
changed.
To drain the water out, unscrew the bleed
screw or the water in Diesel sensor, located
at the base of the filter. Leave open until
all of the water has been drained out. Then
tighten the bleed screw or the water sensor.
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 given in
the maintenance and warranty guide.
Depending on the environment (dusty
atmosphere...) and the use of the vehicle
(urban driving...), change them twice as
often if necessary.
Refer to the "Checks - Under the
bonnet" section.
HDi engines use advanced technology.
All work requires a special qualification
which is guaranteed by a CITROËN dealer
or a qualified workshop.

127
7
CHECKS
Levels and checks
Manual gearbox
Have the level checked in accordance with
the manufacturer's servicing schedule.
Good practice
To check the main levels and certain
components, in accordance with the
manufacturer's servicing schedule, refer to
the pages of the maintenance and warranty
guide which correspond to your vehicle's
engine.
Only use products recommended by
CITROËN or products of equivalent quality
and specification.
In order to optimise the operation of units as
important as the braking system, CITROËN
selects and offers specific products.
Oil filter
Change the filter regularly, in accordance
with the manufacturer's servicing schedule.
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.
Brake disc/drum wear status
For any information relating to checking
the brake disc/drum wear status, contact a
CITROËN dealer or a qualified workshop.
Parking brake
Where the parking brake travel is too great
or there is a reduction in the performance
of the system, the parking brake should be
adjusted, even between services.
Have the system checked by a CITROËN
dealer or a qualified workshop.
If this warning lamp comes on,
have the brake pad wear checked
by a CITROËN dealer or a
qualified workshop. In order to avoid damaging the
electrical units, high pressure washing
to clean the engine compartment is strictly
prohibited.
After washing the vehicle dampness, or in
winter, ice may form on the brake discs and
pads: braking efficiency may be reduced.
Make some light brake applications to dry
and de-ice the brakes.

128
Levels and checks
Operating fault
If this alert persists, do not ignore the
warning; it indicates that a fault has occurred
in the exhaust / particle filter system.
Have the whole system checked by a
CITROËN dealer or a qualified workshop.
If there is risk of blockage of the
filter, this warning lamp comes on
in the instrument panel.
Saturation / Regeneration Because of the higher exhaust
gas temperature resulting from the
normal operation of the particle filter, it is
recommended that you do not park the
vehicle over inflammable materials (grass,
dry leaves, pine needles, ...) so as to avoid
any risk of fire.
Particle filter system (Diesel)
An addition to the catalytic converter, this
filter makes an active contribution to the
preservation of air quality by the retaining
of the unburnt pollutant particles. Black
exhaust fumes are thus no longer emitted.
Operation
This filter, fitted to the exhaust system,
accumulates particles of soot. The engine
management unit controls the automatic
periodic elimination of the soot particles
(regeneration).
The regeneration procedure is invoked
according to the quantity of particles
accumulated and the driving conditions
of the vehicle. During this phase, you
may notice some unusual phenomena -
increased idling speed, cooling fan running,
increase in smoke and higher exhaust gas
temperature - which does not affect the
operation of the vehicle or the environment. After prolonged idling or driving at very
low speeds, you may occasionally
notice water vapour being emitted from the
exhaust when accelerating. This is of no
consequence to the running of the vehicle or
to the environment. To regenerate the filter, it is advised to drive
as soon as possible, when traffic conditions
and the law permit, at a speed of at least
40 mph (around 60 km/h), with an engine
speed above 2 000 rpm for about fifteen
minutes (until the warning lamp and/or the
message disappears).
If possible, avoid switching off the engine
before the end of regeneration of the
filter; repeated interruptions could cause
premature deterioration of the engine oil. It
is not recommended to end regeneration of
the filter with the vehicle stationary.
This alert tells you that the particle filter
is starting to fill up (in conditions of urban
driving of exceptionally long duration: low
speeds, traffic jams etc.)

129
7
CHECKS
Fuel
Low fuel level
When the fuel tank level E
(Empty) is reached, this warning
lamp comes on. At this moment,
you have around 10 to 12 litres
in the reserve, depending on the capacity
of the tank, the engine type, the driving
conditions and the profile of the road. Refuel
without delay to avoid running out of fuel.
The capacity of the fuel tank is
approximately 90 litres.
Fuel tanks of different capacities, 60 and
125 litres, may be fitted.
REFUELLING
In low temperatures
In mountainous and/or cold areas, it is
advisable to use a "winter" type fuel suited
to low or minus temperatures. With Stop & Start, never refuel
with the system in STOP mode;
you must switch off the ignition with
the key. 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 anticlockwise.
- Remove the cap and hook it onto the clip located on the inside of the flap.
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.
- After filling the fuel tank, lock the cap and close the flap.

130
Fuel
FUEL SYSTEM CUT-OFF
After the collision and before restore
these supplies, check that there is no
fuel leak or sparks, to avoid the risk of fire. In the event of a collision, a device
automatically cuts off the fuel supply
from the engine and cuts off the vehicle's
electrical supply .
It triggers operation of the hazard warning
lamps and courtesy lamps, and unlocking of
the doors. To restore the fuel supply, press the first
button, located below the steering wheel.
Then to restore the electrical power
supply, press the second button, located
in the battery compartment under the front
passenger's floor (Minibus).
On other versions, the second button is
replaced by a fuse; contact a CITROËN
dealer or a qualified workshop.

131
Discharged battery
QUICK HELP
8
A. Positive metal point on your vehicle
B. Slave battery
C. Earth on your vehicle
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.
Charging the battery using a charger
- Go to the battery located in the front left floor.
- 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.
BATTERY