2017 CITROEN RELAY engine

134
driving advice
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.
c

ooling: towing a trailer on a slope
increases the coolant temperature.
As the fan is electrically controlled, its
cooling capacity is not dependent on the
engine speed.
On the contrary, use a high gear to lower the
engine speed and reduce your speed.
In all cases, pay attention to the coolant
temperature.
tyres:

check the tyre pressures of the
towing vehicle and of the trailer, observing
the recommended pressures.
Fitting a towbar
We recommend the use of genuine
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.
These genuine towbars are compatible with
the operation of the rear parking sensors
and the reversing camera, if fitted to your
vehicle.
If this equipment is not fitted by a CITROËN
dealer, it must be fitted in line with the
manufacturer's instructions.
Good practice
If the coolant temperature
warning lamp comes on, stop the
vehicle and switch off the engine
as soon as possible.
Refer to the "Checks - Levels and
checks" section.
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.
r

ear parking sensors: the system is
deactivated while the vehicle is towing with a
genuine CITROËN towbar fitted.
Refer to the "Technical data -
Identification markings" section.
transport solutions

138TOTAL & CITROËN
Partners in performance and
protecting the environment
Innovation in the search for performance
For over 40 years, the TOTAL Research and
Development departments have developed
lubricants for CITROËN, to match the latest
technical innovations on CITROËN vehicles, both
for competition and for everyday motoring.
For you, this is an assurance that you will obtain
the best performance from your engine.
Optimum protection for your
engine
By having your CITROËN vehicle
serviced with TOTAL lubricants, you
are contributing towards improving
the life and performance of your
engine, while also protecting the
environment.
Maintenance with TOTAL

139
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
Raise 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).
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 of the
Stop & Start system.
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.
7
under the bonnet
cHEcKS

140
1. Windscreen/headlamp wash fluid
reservoir.
2.

Power steering fluid reservoir
.
3.

Coolant header tank.
4.


Brake and clutch fluid reservoir
.
5.

Diesel fuel filter
.
6.

Fusebox.
7.


Air filter
.
8.

Dipstick.
9.


Engine oil filler cap.
undErBOnnEt - dIESEL
E

n GI n ES
Battery connections:
+
Positive terminal.
-
Negative terminal (earth).
T

o understand the significance of the
precautions mentioned on the labels,
refer to the "Quick help - Glossary of
labels" section.
under the bonnet

141
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
To maintain the reliability of engines and
emission control systems, the use of
additives in engine oil is prohibited.
If you have to remove/refit the engine


styling cover, handle it with care to
avoid damaging the fixing clips.
d
ipstick
There are two marks on
the dipstick:
topping-up
Remove the dipstick before topping-up.
T
ake the oil filler funnel from the tool box.
Remove the oil filler cap.
Place the oil filler funnel in the filler orifice.
Top-up the oil.
Remove the oil filler funnel from the filler
orifice.
Refit the oil filler cap.
Refit the dipstick.
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.
Warning lamps
These regular maintenance operations
will keep your vehicle in good running
order. Ask for advice from a CITROËN
dealer or consult the manufacturer's service
schedule contained in the handbook pack.
Checking by means of the warning
lamps on the instrument panel is
described in the "Ready to go -
Instruments and controls" section.
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.
7
cHEcKS
Levels and checks

142
cooling system
Check the coolant level regularly,
according to the use made of your
vehicle (every 3 000 miles or 5 000 kms
/
3

months);
if necessary, top-up using coolant
recommended by the manufacturer.
Topping-up the coolant between services is
normal.
The check and top-up must be done with the
engine cold.
A low coolant level presents the risk of
serious damage to your engine. For access to the header tank filler cap,
remove the protective cover by turning its
three fixing screws a quarter turn.
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 the risk of scalding, with a cloth
around the cap, slacken the cap by a quarter
turn to release the pressure. When the
pressure has dropped, remove the cap and
top-up the level with coolant.changing the brake fluid
The brake fluid must be changed at
the intervals stated, according to the
manufacturer's service schedule.
Use brake fluid recommended by the
manufacturer, meeting the DOT4 standard.
The level must be between the MI
n and
MA
x 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. Engine oil grade
When topping-up, the oil selected must meet
the manufacturer's requirements. Oil change
It is imperative that this is carried out at the
intervals specified in the manufacturer's
service schedule. Ask for advice from a
CITROËN dealer.
Refill the engine oil using the procedure
described for topping-up.
Check the level after filling (never exceed
the maximum mark).
Levels and checks

143
topping-up
The level must be between the MI n and
MA
x marks on the expansion bottle.
As close as possible to the MA
x mark is
recommended.
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.
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 MI
n and
MA
x marks.
For access to the reservoir filler cap, remove
the protective cover by turning its three
fixing screws a quarter turn, then remove the
second cover fitted to the cap.
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 unclip the cap.
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.
7
cHEcKS
Levels and checks

145
Manual gearbox
Have the level checked in accordance with
the manufacturer's servicing schedule.
Good practice
In order to avoid damaging the
electrical units, we strongly advise you
not to use high pressure washing to clean
the engine compartment.
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. 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.
diesel fuel filter
The Diesel fuel filter is located under the
bonnet, close to the brake fluid reservoir.
If this warning lamp comes on, the
filter must be bled to remove water.
Y

ou can also bleed the fuel filter
regularly, every time the engine oil
is changed.
Bleeding water from the filter
-

Connect a transparent pipe to the head

of the bleed screw 1 .
-

Place the other end of the transparent

pipe in a recipient.
-

Slacken the bleed screw
2. HDi engines uses advanced
technology. All work must be done by
personnel that have had special training,
which can be ensured by going to a
CITROËN dealer or a qualified workshop. -
Switch on the ignition.
-

W
ait until the lift pump stops running.
-
Switch of
f the ignition.
-
T
ighten the bleed screw 2
.
-
Remove, then empty the transparent

pipe and the recipient.
-
Start the engine.
-

Check for the absence of leaks.
7
cHEcKS
Levels and checks