2019 CITROEN RELAY cold start

46
Air outlet
Press this control to activate
extraction of air to the outside; the
LED comes on. Press again to
switch off.
Air intake
Pressing this control activates the
exterior air intake into the passenger
compartment; the LED comes on.
Press again to switch off.
Additional heating
systems
Additional heating
This is passenger compartment heating,
additional to the standard equipment.
It can operate independently of the engine.
Additional heater or
programmable additional
heating
This is an additional, programmable and
separate system which heats the Diesel engine
hot coolant loop to make starting easier.
It improves the demisting and defrosting
per formance and that of the heated seats, if
fitted to the vehicle.
Automatic additional
heating
This is an additional system which starts
automatically when the ignition is switched
on. Its activation depends on the exterior
temperature and the temperature inside the
vehicle.
It switches off automatically once the heating
system is started manually. The passenger compartment heating is brought
up to temperature more rapidly.
This system must be programmed to start up
before you enter the vehicle.
Supplementary heating
On the 2-3 seats model, this is located under
t he seat on the driver's side with air diffusion
directed forwards.
On the 5 -9
seats model, it is
located at the rear. Depending
on the model, the air diffusion
is either direct from the rear
or comes from the rail located
under each of the two rows of
seats.
F

P
ress this control to activate/
deactivate the heating. The
LED comes on if the heating is
activated.
When rapid demisting and defrosting is
required, switch off the control.
Rear heating and/or air
conditioning
If your vehicle is fitted with an additional air
conditioning unit, located in the rear of the
vehicle: the distribution rail located in the
roof and the individual diffusion vents provide
a
per fect diffusion of cold air.
Ease of use and comfort

47
The warm air diffused at floor level from the
front air conditioning unit is distributed at the
feet of the rear passengers of rows 2 and 3.
A warm air diffusion vent, located on the rear
left wheel arch, can supplement the unit for the
feet of the rear passengers in row 3.
Activation/Deactivation
F From the driver's seat, press this button on the MODE control
panel to activate the operation
of the rear controls. The
indicator lamp comes on.
Air flow
F Turn the control to your chosen position to obtain sufficient air
flow for your comfort.
Comfort temperature
adjustment
F Turn the control to select a position between blue
(cold) and red (hot) so as to
adjust the temperature to your
requirements.
The OFF control on the "Single zone"
central control panel switches off the
function.
However, a safety device will ventilate the
rear circuit automatically, even if the control
is in position 0, to prevent condensation
forming.
Pressing this button again deactivates the rear
controls. The indicator lamp goes out.
Programmable additional
heating
This also facilitates passenger
compartment heating, demisting and
defrosting.
Digital programming
control
The programmable heating control panel is
located to the side of the steering wheel below
the MODE control panel.
Time display
Heating cycle indicator
Time setting and reading indicator
If your vehicle is fitted with separate
programmable heating, it gradually brings the
engine up to a
good temperature to facilitate
starting.
An integrated clock permits programming of its
start time. The passenger compartment will be
heated more quickly.
3
Ease of use and comfort

50
To avoid the risks of poisoning or
asphyxia, the additional heating must
not be used, even for short periods, in
a closed environment such as a garage or
workshop which are not equipped with an
exhaust gas extraction system.
The additional heating switches off when
the battery voltage is low, so as to allow
engine starting.
The additional heating is fed by the
vehicle's fuel tank. Ensure that the low fuel
warning lamp is not on.
Always switch off the additional heating
when refuelling to avoid any risk of fire or
explosion!
The temperature near the heating
system must not exceed 120°C. A higher
temperature (e.g. when baking the
paint) could damage the components of
electronic circuits.
The additional heating is fitted with
a
temperature limiter which cuts off
the combustion in the event of engine
overheating due to a
lack of coolant.
Check the level and top up if necessary.
For more information on Checking levels ,
refer to the corresponding section.
Then press the programme selection
button before switching the heating on
again.Recommendations for ventilation and air conditioning
In order for these systems to be fully effective,
follow the operation and maintenance
guidelines below:
F

T
o ensure that the air is distributed evenly,
keep the external air intake grilles at the
base of the windscreen, the nozzles, the
vents, the air outlets and the air extractor
in the boot free from obstructions.
F

D
o not cover the sunshine sensor,
located on the dashboard; this is used for
regulation of the automatic air conditioning
system.
F

O
perate the air conditioning system for
at least 5
to 10 minutes once or twice
a
month to keep it in per fect working order.
F

E
nsure that the passenger compartment
filter is in good condition and replace
the filter elements periodically. We
recommend the use of a
combined
passenger compartment filter. Thanks to
its special active additive, it helps both to
purify the air breathed by the occupants
and to keep the passenger compartment
clean (reduction of allergic symptoms, bad
odours and greasy deposits). F
T o ensure correct operation of the
air conditioning system, you are also
advised to have it checked regularly as
recommended in the Maintenance and
Warranty Guide.
F

I
f the system does not produce cold air,
switch it off and contact a
CITROËN
dealer or a
qualified workshop.
When towing the maximum load on a
steep
gradient in high temperatures, switching off
the air conditioning increases the available
engine power and so improves the towing
ability.
To avoid the windows misting up and
deterioration in the quality of the air:
-

d
o not drive for too long with the
ventilation switched off.
-

d
o not keep air recirculation set for an
extended period.
Ease of use and comfort

132
Freezing of the AdBlue®
AdBlue® freezes at temperatures below
around -11°C.
The SCR system includes a
heater for the
AdBlue
® tank, allowing you to continue
driving in very cold conditions.
Topping up with AdBlue®
Before topping up, please read the
following warnings carefully.
Precautions for use
AdBlue® is a urea-based solution. This fluid
is
non-flammable, colourless and odourless
(stored in a
cool place).
In the event of contact with the skin, wash the
affected area with soap and running water. In
the event of contact with the eyes, immediately
rinse the eyes with large amounts of water
or with an eye wash solution for at least
15

minutes. If a burning sensation or irritation
persists, get medical attention.
If swallowed, immediately wash out the mouth
with clean water and then drink plenty of water.
In certain conditions (high exterior temperature,
for example), the risk of ammonia being
released cannot be excluded: do not inhale
the vapours. Ammonia has an irritant effect on
mucous membranes (eyes, nose and throat).
AdBlue® (BlueHDi
engines)
To respect the environment and ensure
compliance with the Euro 6
standard, without
adversely affecting the per formance or fuel
consumption of Diesel engines, CITROËN
has taken the decision to equip its vehicles
with a
system that associates SCR (Selective
Catalytic Reduction) with a
Diesel particle filter
(DPF) for the treatment of exhaust gases.
SCR system
Using a liquid called AdBlue® containing urea, a
catalytic converter turns up to 85% of nitrogen
oxides (NOx) into nitrogen and water, which are
harmless to health and the environment.
The AdBlue
® is contained in a special tank with
a
capacity of approximately 14 litres.
It has an exterior filler located behind the fuel
filler flap below the fuel filler cap and closed
with a

blue filler cap .
An alarm system is triggered once the
remaining range is 1,500 (2,400 km), in other
words once the reser ve level is reached. Once the AdBlue
® tank is empty, a
regulatory device prevents the engine
from being restarted.
If the SCR system is faulty, the level of
emissions from your vehicle no longer
meet the Euro 6

regulations: your vehicle
becomes polluting.
In the event of a

confirmed fault with the
SCR system, you must go to a
CITROËN
dealer or a

qualified workshop as soon
as possible: having travelled 250 miles
(400 km), a device will be triggered
automatically to prevent the engine from
starting.
Practical information

134
Refilling
F Insert the AdBlue® pump nozzle and refill
the tank until the nozzle stops automatically. Important:
-

N
ever pour AdBlue
® into the Diesel fuel
tank.
-

T

o avoid over flowing the AdBlue
® tank,
it is recommended:
•

T

o do a

top up between 10

and
13

litres using the AdBlue
® container
or bottle.
Or
•

I

f filling in a

ser vice station, to stop
after the first automatic shut-off of
the nozzle.
-
I

f your vehicle's AdBlue
® tank is
completely empty – which is confirmed
by the alert messages and the
impossibility of starting the engine –
you must add at least 4

litres.
If any AdBlue
® is splashed, or if there are
any spillages on the side of the body, rinse
immediately with cold water or wipe with
a

damp cloth.
If the fluid has crystallised, clean it off
using a

sponge and hot water.
F

O

btain an


AdBlue
® container or bottle. After
first checking the use-by date, read the
instructions on the label carefully before
pouring the contents of the container or
bottle into your vehicle's AdBlue tank.
Or F

R
efit the blue cap to the tank filler and turn it
1/6 of a turn clockwise, to its stop.
F
C
lose the fuel filler flap.
Important: In the event of a top-up after
running out of AdBlue , you must wait
about five minutes before switching on the
ignition, without opening the driver's
door, unlocking the vehicle or inser ting
the key in the ignition switch .
Switch on the ignition, then wait for
10 seconds before starting the engine.
Practical information