2019 CITROEN RELAY cooling

44
Automatic single zone air
conditioning
1.AUTO mode.
2. Air conditioning off.
3. System completely off.
4. Adjusting the air distribution.
5. Adjusting the air flow.
6. Air intake/Air recirculation.
7. Fast demisting/defrosting.
AUTO mode
FULL AUTO operation: F
U
sing the moving ring surrounding the
AUTO control, set the comfort temperature
to be reached according to a setting
between:
-
H
I (High to ≈32) and
-
L
O (Low to ≈16).
The system controls the distribution, flow and
intake of air to ensure comfort equivalent to the
setting displayed and sufficient recirculation of
air in the passenger compartment.
F
P
ress the AUTO control.
This switches on the
system functions,
confirmed by the FULL
AUTO display. This is the
normal operating mode
for the automatic air
conditioning system.
AUTO mode with
personalisation
In AUTO mode, certain settings can be
modified: distribution, air flow, air conditioning
and air intake/recirculation.
The display changes from FULL AUTO to
AUTO .
To return to fully automatic
operation, press this button
again. The display on the
control panel changes from
AUTO to FULL AUTO .
If the system is not able to maintain the setting
selected following manual adjustments, the
setting flashes then AUTO is cleared. Press
the AUTO control to return to the automatic
settings.
Switching off the air conditioning
F Press this button to halt the cooling functions. The
snowflake is cleared from the
screen.
Complete switch-off
F Press this button to switch off the system. The LED and
display switch off.
Temperature
The settings range between:
- i ncreasing the interior ambient air
temperature HI (High) which heats to
a
maximum setting of 32,
-

c
ooling the interior ambient air temperature
LO (Low) which goes down to a
setting of
16.
Air distribution
F Press one or more buttons to direct the air flow towards:
the windscreen and front side
window vents (demisting/defrosting
the windows),
Ease of use and comfort

51
If after an extended stop in sunshine, the
interior temperature is very high, first air
the passenger compartment for a few
moments.
Put the air flow control at a
setting high
enough to quickly change the air in the
passenger compartment.
The condensation created by the air
conditioning results in a
discharge of
water under the vehicle which is per fectly
normal.
Contains fluorinated greenhouse
gases R134A
Depending on model and country of
sale, the air conditioning system may
contain fluorinated greenhouse gases
R13 4A .
Stop & Star t
The heating and air conditioning systems
only work when the engine is running.
To maintain a
comfortable temperature
in the passenger compartment, you may
temporarily deactivate the Stop & Start
system.
For more information on Stop & Star t ,
refer to the corresponding section.Front demist – defrost
These markings on the control panel
indicate the control positions for
rapid demisting or defrosting of the
windscreen and side windows.
With manual air
conditioning
F Put the air flow and distribution controls to the appropriately
marked position.
For faster and more effective demisting and
defrosting of the windscreen:
F

i

ncrease the air flow setting, F

m
ove the exterior air intake
control temporarily to air
recirculation.
With automatic air
conditioning
F Press this button, the indicator lamp comes on. The system manages the cooling, flow and
intake of air, defrosting of the rear screen and
provides optimum distribution of the air to the
windscreen and front side windows.
If your vehicle is fitted with additional heating,
switch it off to ensure rapid and effective
demisting/defrosting.
Defrosting the rear screen
and door mirrors
F Press this button to activate
demisting/defrosting of the rear
screen and door mirrors. The
indicator lamp comes on.
This function switches off automatically to
prevent excessive energy consumption.
It is possible to stop the demisting/defrosting
operation before it is switched off automatically
by pressing this button again. The indicator
lamp goes off. Rear screen demisting/defrosting can only
operate when the engine is running.
3
Ease of use and comfort

89
Cooling
Towing a trailer on a slope increases the
t emperature of the coolant.
As the fan is electrically controlled, its cooling
capacity is not dependent on the engine speed.
F

T
o lower the engine speed, reduce your
speed.
The maximum towable load on an incline
depends on the gradient and the exterior
temperature.
In all cases, keep a
check on the coolant
temperature.
F

I
f this warning lamp and the
STOP warning lamp come on,
stop the vehicle and switch off
the engine as soon as possible.
New vehicle
Do not pull a
trailer before having driven at
least 620
miles (1,000 kilometres).
Braking
Towing a trailer increases the braking distance.
T o avoid overheating of the brakes, the use of
engine braking is recommended.
Ty r e s
F Check the tyre pressures of the towing vehicle and of the trailer, observing the
recommended pressures.
Lighting
F Check the electrical lighting and signalling on the trailer and the headlamp beam height
of your vehicle.
For more information on Headlamp
beam height adjustment , refer to the
corresponding section.
The rear parking sensors will be
deactivated automatically to avoid the
audible signal if a
genuine CITROËN
towbar is used.
Anti-theft protection
Electronic immobiliser
The keys contain an electronic immobiliser
device.
This device locks the engine supply system.
It activates automatically when the key is
removed from the ignition.
This warning lamp goes off after the
key has been recognised, the ignition is
switched on and the engine can be started.
If the key is not recognised, the engine
cannot be started. Use another key
and have the faulty key checked by
a
CITROËN dealer.
Note the number of the keys carefully; in
case of loss, inter vention by the CITROËN
dealer will be more efficient and quicker
if you present this number and the
confidential card.
When the ignition switch is turned on, a
dialogue is set up between the key and the
electronic immobiliser.
Do not make any modifications to the
electronic immobiliser system.
Operating the remote control, even when it
is in your pocket, may result in involuntary
unlocking of the doors.
The simultaneous use of other high
frequency equipment (mobile telephones,
domestic alarms, etc.), may inter fere
with the operation of the remote control
temporarily.
The remote control does not operate
while the key is in the ignition, even if the
ignition is off, except for reinitialisation.
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Driving

128
For access to the reser voir filler cap, remove
the protective cover by turning its three fixing
screws a quarter turn, then remove the second
cover fitted to the cap.
Engine coolant level
Check the coolant level regularly.
It is normal to top up this fluid
between two services.
Check the coolant level regularly,
according to the use made of your vehicle
(every 3,000
miles (5,000 km)/3 months);
if necessary, top up using coolant
recommended by the manufacturer.
The check and top up must only be done
with the engine cold.
A low coolant level presents a
risk of
serious damage to your engine.
When the engine is hot, the temperature of the
coolant is regulated by the electric fan. This
may operate with the ignition off; furthermore,
because the cooling system is under pressure,
wait for at least one hour after the engine has
stopped before carrying out any work. F

F
or access to the header tank filler cap,
remove the protective cover by turning its
three fixing screws a quarter turn.
F
T
o avoid the risk of scalding, place a cloth
around the cap, then loosen the cap by
a
quarter turn to release the pressure.
F

W
hen the pressure has dropped, remove
the cap and top up the level with coolant.
To p p i n g u p
The level must be between the MIN and MAX
marks on the expansion bottle.
As close as possible to the MAX 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.
Screenwash and headlamp
wash level
To check the level or top up the fluid
on vehicles fitted with headlamp
washers, immobilise the vehicle and
switch off the engine.
Capacity of the reservoir: approximately
5.5


litres.
F

F

or access to the reser voir filler cap, pull on
the telescopic filler pipe and unclip the cap.
Practical information

130
Operation
This filter, fitted in 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 triggered
depending on the amount of particles
accumulated and the vehicle use conditions.
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. 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, etc.) so as to
avoid any risk of fire.
Saturation/Regeneration
If there is risk of blockage of the
filter, this warning lamp comes on in
the instrument panel.
This alert tells you that the particle filter is
starting to saturate (in conditions of urban
driving of exceptionally long duration: low
speeds, traffic jams, etc.).
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
37

mph (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 the filter regeneration;
repeated interruptions could cause premature
deterioration of the engine oil. It is not
recommended to end regeneration of the filter
with the vehicle stationary.
Malfunction
If this alert persists, do not ignore the warning;
it indicates that a fault has occurred in the
exhaust system/particle filter assembly.
Have the whole system checked by a
CITROËN
dealer or a
qualified workshop.
Manual gearbox
The gearbox does not require any
maintenance (no oil change).
Brake pads
Brake wear depends on the style
of driving, particularly in the case
of vehicles used in town, over short
distances. It may be necessary to
have the condition of the brakes
checked, even between vehicle
services.
If this warning lamp comes on, have
the brake pad wear checked by
a
CITROËN dealer or a qualified
workshop.
Practical information

157
Engine technical data and
towed loads
Engines
The engine characteristics are given in the
vehicle's registration document, as well as in
sales brochures.The maximum power corresponds to the
value type-approved on a
test bed, under
conditions defined in European legislation
(Directive 1999/99/EC).
For more information, contact a
CITROËN
dealer or a
qualified workshop.
Weights and towed loads
The maximum weights and towed loads for
your vehicle are given in the registration
document, as well as in sales brochures.
These values are also given on the
manufacturer's plate or label.
For more information, contact a CITROËN
dealer or a
qualified workshop. The GTW and towed load values indicated are
valid up to a
maximum altitude of 1,000 metres.
The towed load value must be reduced by 10%
for each additional 1,000 metres of altitude.
The maximum authorised nose weight
corresponds to the weight permitted on the
towbar (can be dismantled with or without
a

tool).
GT W: Gross train weight.
High ambient temperatures may result
in a reduction in the per formance of
the vehicle to protect the engine. If the
ambient temperature is above 37°C, limit
the towed load.
Towing with a towing vehicle which is only
slightly laden may negatively affect its
handling.
Towing a
trailer increases the braking
distance.
When towing, never exceed the speed
of 62
mph (100 km/h) (obser ve the local
legislation in force). If the exterior temperature is high, it is
recommended that the engine be allowed
to idle for 1
to 2 minutes after the vehicle
comes to a stop, to facilitate its cooling.
9
Technical data