FIAT DUCATO 2015 3.G Service Manual

CONTROLS
Air temperature
adjustment knob (I)
Turn the knob either clockwise or
counterclockwise to increase or lower
the requested temperature in the
passenger compartment.
The set temperature is shown on the
display.
Turn the knob either fully to the right or
fully to the left to the extreme HI or
LO position to turn the maximum
heating or maximum cooling functions
on:
❒HI function (maximum heating): select
by turning the temperature knob
clockwise beyond the maximum
value (32°C).
This function may be used to heat up
the passenger compartment by
exploiting the system's potential to the
full. In this event, the system stops
controlling the temperature
automatically and sets the air mixing to
maximum heating. The air speed and
distribution are fixed.
In particular, if the heating fluid is not
sufficiently hot, the maximum fan speed
does not come on straight away in
order to limit the intake of insufficiently
hot air to the passenger compartment.All manual settings will be allowed when
this function is on.
To switch the function off, simply turn
the temperature knob anticlockwise
and set the required temperature.
❒LO function (maximum cooling):
select by turning the temperature
knob anticlockwise beyond the
minimum value (16°C).
This function may be used to cool
down the passenger compartment by
exploiting the system's potential to
the full. In this event, the system stops
controlling the temperature
automatically and sets the air mixing to
maximum cooling. The air speed and
distribution are fixed. All manual
settings will be allowed when this
function is on.
To switch the function off, simply turn
the temperature knob anticlockwise
and set the required temperature.Air distribution buttons
(B)
By pressing these buttons, it is possible
to set one of the seven possible air
distributions manually:
Air flow to the windscreen and front
side window vents to demist or defrost
them.
Air flow to the central and side
dashboard vents to ventilate chest and
face during the hot season.
Air flow to the front and rear footwell
vents. Thanks to the natural tendency
of hot air to rise, this distribution pattern
allows the passenger compartment to
warm up as quickly as possible,
providing an immediate feeling of
warmth.
Air flow distributed between
footwell vents (hotter air) and central
and side dashboard vents (cooler air).
This distribution mode is particularly
useful in spring and autumn on sunny
days.
Air flow distributed between the
footwell vents and the windscreen
and front side window defrosting/
demisting vents. This allows an
adequate warming of the passenger
compartment and prevents the
windows from misting up.
37

Air flow distribution split between
the windscreen and front side windows
defrosting/demisting vents and the
central and side dashboard vents as
well as the footwell vents. This
distribution makes it possible to
maintain good levels of comfort and
keep the passenger compartment
sufficiently cool (summer).
Air flow distributed between
windscreen and front side window
defroster/demister and central and side
dashboard vents. This distribution
allows good air diffusion and maintains
a good level of comfort both in summer
and winter.
The distribution set is shown by the
corresponding LEDs on the selected
buttons coming on.
To restore automatic control of the air
distribution after a manual selection,
press the AUTO button.Fan speed adjustment
buttons (H)
Press the H button to increase or to
decrease the fan speed and therefore
the amount of air sent into the
passenger compartment, though the
required temperature remains set.
The fan speed is shown by the lit bars
on the display:
❒Maximum fan speed = all the bars lit
up;
❒Minimum fan speed = one bar lit up.
The fan can only be excluded if the
climate control system compressor has
been switched off by pressing the F
button.
IMPORTANT To restore automatic
control of the fan speed after a manual
adjustment, press the AUTO button.
IMPORTANT At high vehicle speeds,
the dynamic effect may increase the
flow of air into the passenger
compartment which in this case will not
directly correspond to the fan speed
bar display.AUTO button (A)
(automatic operation)
Press AUTO to make the system
automatically adjust the quantity and
distribution of the air introduced into the
passenger compartment. All previous
manual settings will be cancelled.
The message FULL AUTO will appear
on the front display in this condition.
By manually adjusting at least one
of the functions automatically managed
by the system (air recirculation, air
distribution, fan speed or switching off
the compressor), the word FULL will
disappear from the display, indicating
that the system is no longer
automatically controlling all the
functions (the temperature will still be
controlled automatically).
IMPORTANT Should the system (after
manual settings) no longer be able
to guarantee the required temperature
set in the passenger compartment,
the set temperature value will start
flashing to indicate the difficulties the
system is experiencing and then the
word AUTO will disappear.
To restore system automatic control at
any time, after one or more manual
adjustments, press the AUTO button.
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KNOW YOUR VEHICLE

Air recirculation on/off
button (G)
The air recirculation is managed
according to the following operating
logic:
❒override on (inside air recirculation
always on), indicated by the LED
on button G and the
symbol on
the display;
❒override off (air recirculation
constantly off with air intake from the
outside), signalled by the LED in
the button switching off and by the
symbol in the display
disappearing.
These operating conditions are
obtained by pressing air recirculation
button G in sequence.
IMPORTANT The engagement of the air
recirculation system makes it possible
to reach the required heating or cooling
conditions faster.
It is however inadvisable to use it on
rainy/cold days as it would considerably
increase the possibility of the windows
misting inside, especially if the climate
control compressor is off.
To prevent the windows from misting
up, the recirculation is forced off (i.e. air
is drawn in from the outside) when
the outside temperature is cold.It is advisable not to use the air
recirculation function when the outside
temperature is low to prevent the
windows from rapidly misting up.
Climate control
compressor
enablement/off button
(F)
Press button
to switch the climate
control compressor off (if on). The icon
on the display will go out.
Press the button when the LED is off to
restore automatic system control of
compressor activation. The icon will
light up on the display.
The system will switch recirculation off
when the compressor is switched off to
prevent windows from misting up.
Although the system is capable
of maintaining the required
temperature, the word FULL will
disappear from the display. If, on the
other hand, it is no longer capable
of maintaining the temperature, the
letters flash and the word AUTO goes
out.IMPORTANT With the compressor off, it
is not possible to introduce air cooler
than ambient temperature into the
passenger compartment. Furthermore,
in certain conditions, the windows
could mist up rapidly because the air is
not dehumidified.
The system remembers that the
compressor has been switched off,
even after the engine has stopped.
To restore automatic compressor
control, press the
button again (in
this case, the system will only work as a
heater) or press the AUTO button.
With the compressor switched off, if the
outside temperature is higher than the
one set, the system is not capable
of satisfying this request. This is
signalled by the target temperature
flashing, after which the word AUTO
goes out.
With the climate control compressor
off, the fan speed can be set to zero
manually (no bar shown).
With the compressor enabled and the
engine started, the fan speed may
be reduced to the minimum setting
(only one bar shown).
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Button for rapid window
demisting/defrosting (D)
Press this button and the climate
control system will automatically switch
on all the functions required for fast
windscreen and side window
demisting/defrosting:
❒switches on climate control
compressor when climatic conditions
are suitable;
❒switches air recirculation off;
❒maximum air temperature HI in both
areas;
❒sets the fan speed according to the
engine coolant temperature to limit
the flow of air that is not sufficiently
warm to demist the windows;
❒directs air flow to windscreen and
front side windows vents;
❒heated rear window on.
IMPORTANT The rapid demisting/
defrosting function for the windows
remains on for about 3 minutes from
when the engine coolant reaches the
appropriate temperature for a rapid
demisting of the windows.When this function is active, the LED on
the corresponding button and the one
on the heated rear window button
switch on. The message FULL AUTO
goes off on the display.
You can only adjust the fan speed and
switch off the heated rear window
manually when this function is active.
To restore the previous operating
conditions, simply press button B, air
recirculation button G, compressor
button F or AUTO button A.
NoteTo guarantee rapid demisting/
defrosting, if an additional heater/air
conditioner is present (under the front
or rear seat on Panorama and Combi
versions), if activated, deactivate it
using button F (LED off) located
in control panel F fig. 55.Switching the system
OFF (E)
Press button E to switch the climate
control system off. The display will go
out.
The following climate control conditions
will be present when the system is off:
❒display off;
❒temperature setting not displayed;
❒air recirculation on, thereby insulating
the passenger compartment from the
outside (recirculation LED on);
❒climate control compressor off;
❒fan off.
Press the AUTO button to switch the
climate control system back on in
full automatic mode.
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KNOW YOUR VEHICLE

ADDITIONAL
HEATER
(for versions/markets, where provided)
On some versions, an additional heater
is also present beneath the driver's
seat. The fan for this heater is operated
by means of the button F located on
the control panel fig. 53.
INDEPENDENT
ADDITIONAL
HEATER
(for versions/markets, where provided)
The vehicle is available, on request,
with two different independent heaters:
one fully automatic, the other which
can be programmed.
AUTOMATIC VERSION
The additional heater is turned on in
automatic mode when the engine
is started and the required outside
temperature and coolant conditions are
present. Deactivation is always
automatic.
21)
IMPORTANT During periods with low
outdoor temperatures when the device
cuts in, check that the fuel level is
always higher than the reserve level.
Otherwise the device could lock and
require the assistance of a Fiat
Dealership.PROGRAMMABLE
VERSION
The additional heater operates
completely independently of engine
operation and allows the following:
❒heating the passenger compartment
with the engine off
❒defrosting the windows;
❒heat the engine coolant and then the
engine itself prior to starting.
The system consists of:
❒a diesel burner for heating the water
with an exhaust silencer for the
combustion gases;
❒a metering pump connected to the
reservoir pipes for supplying the
burner;
❒a heat exchanger connected to the
engine cooling system pipes;
❒a control unit connected to the
passenger compartment
heating/ventilation system to allow
automatic operation;
❒an electronic control unit for
controlling and adjusting the built-in
burner;
❒a digital timer fig. 54 for turning the
heater on manually or for
programming the time that it comes
on.
MODEF
53F1A0305
41

The additional heater (during winter)
heats, maintains the temperature of and
circulates engine coolant for a set time
period in order to ensure optimum
engine and passenger compartment
conditions at engine start-up.
The heater can operate automatically
when programmed with a digital timer
or manually by pressing the 'immediate
heating' button on the timer.
After heater activation, whether
programmed or manually, the electronic
control unit operates the coolant pump
and turns on the burner in accordance
with pre-set, controlled procedures.
The circulation pump output is also
controlled by the electronic control unit
in order to minimise the initial heating
time.
When the system operates, the control
unit turns on the passenger
compartment heater unit fan at the
second speed.The thermal power of the boiler is
regulated automatically by the
electronic control unit depending on the
temperature of the engine coolant.
IMPORTANT The heater is equipped
with a thermal limiter that cuts off
combustion in the case of overheating
due to insufficient coolant/coolant
leaks. In this case, after repairing the
fault in the cooling system and/or
topping up the fluid, press the program
selection button before turning the
heater back on.
The heater can turn off spontaneously
due to misfiring after start-up or
because the flame goes out during
operation. In this case, carry out the
turning off procedure and try to turn the
heater back on. If it still does not work,
consult a Fiat Dealership.Activation of the heating
system
When an automatic climate control
system is present, the control unit sets
the air temperature and distribution
when the heater is turned on from the
park position. When a manual
heater/climate control is present, to
obtain maximum heater efficiency,
check that the passenger compartment
heating/ventilation temperature
adjustment knob is in the 'hot air'
position.
To prioritise passenger compartment
pre-heating, set the air distribution knob
to the
position.
To prioritise windscreen demisting, set
the air distribution knob to
position.
To obtain both functions, set the air
distribution knob to
position.
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KNOW YOUR VEHICLE

Digital timer fig. 54
1) Time/timer display
2) Ventilation warning light
3) Time "forward" adjustment button
4) Program selection button
5) Clock preselection recall number
6) Activation button for immediate
heating
7) Time adjustment/reading warning
light
8) Time "backward" adjustment button
9) Heater cycle warning lightHeating turned on
immediately
To switch the system on manually,
press the button 6 of the timer: the
display and warning light 9 will light up
and remain on the entire time the
system is working.
Switching on time will disappear after
10 seconds.Programmed activation
of heating
Before programming system activation,
it is essential to set the time.
Setting the current time
❒Keep button 4 pressed: the display
and warning light 7 will switch on;
❒At the same time, within 10 seconds,
press buttons 3 or 8 to select the
exact time;
❒Release button 4.
When the display goes off, the current
time is stored.
Continuing to press the buttons 3 or 8
will move the digits on the clock
forwards or backwards faster.
Time setting is not possible when the
heating or ventilation functions are
active.
IMPORTANT Pay attention to the
daylight saving time/standard time
setting.
Reading the current
time
To read the current time, press the
button 3 or 8: the time will appear on
the display for about 10 seconds and
warning light 9 will come on at the
same time.
54F1A0057
43

Programming the
switching on time
Activation can be programmed with an
advance of between 1 minute and 24
hours. Three different activation times
may be selected, but only one can
be activated for each pre-heating cycle.
The duration of activation can be
selected between 10 and 60 minutes.
To program the activation time:
❒press button 4: the symbol 10 or the
time set previously and the number 5
corresponding to the preselection
recalled will light up in the display for
10 seconds.
IMPORTANT If you wish to recall other
preselected times, press button 4
from time to time within 10 seconds.
– within 10 seconds, press the buttons
3 or 8 to select the desired switching
on time.
IMPORTANT The confirmation that the
time has been memorised is given by:
❒the disappearance of the switching
on time;
❒the presence of the preselection
number 5;
❒the lighting of the display.IMPORTANT When the boiler comes
on:
❒the flame warning light 9 switches on
in the display;
❒the preselection number 5 goes out.
Standard settings:
Preselected time 1: 6:00
Preselected time 2: 16:00
Preselected time 3: 22:00
IMPORTANT Factory pre-settings are
cancelled with a new setting.
Preselected times are stored until the
following change. If the clock is
detached from the on-board network
(e.g. if the battery is disconnected), the
factory pre-settings are restored.
Deactivation of the
programmed switching
on time
To delete the programmed activation
time, press button 4 briefly: the display
lighting will go off and the number 5
relating to the preselected time will
disappear.Recalling one of the
preselected switching
on times
Operate button 4 within 10 seconds
until the program number with the
desired preselected time is displayed.
The preselected time you have chosen
to set is automatically activated after
about 10 seconds without the need for
any further confirmation with another
button.
Activate the preselected time taking
into account the safety instructions for
the operation of the independent
heating (for this purpose consult the
Owner's Manual for use of independent
heating).
IMPORTANT Independent heating
switches on at the preselected time,
both with vehicle parked and while
driving.
IMPORTANT The programmed
switching on time can be altered or
cancelled by following the instructions
given previously.
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KNOW YOUR VEHICLE

Operation duration
setting
Hold the button pressed. At the same
time press button 3 or 8.
The time and warning light 7 are
displayed.
Hold button 4 pressed again. At the
same time press button 3 or 8.
The preset activation duration is
displayed and warning light 9 or 2
flashes.
Set the activation duration with button
3or8.
The set activation duration is stored as
soon as the text in the display
disappears, or pressing button 4.Switching the heating
system off
Deactivation of the system, depending
on the type of activation (automatic
or manual), may be:
❒automaticwhen the programmed
duration is over; when the set time
is over, the display switches off.
❒manualpressing the “immediate
heating” button on the timer again
(flame button 6).
In both cases, the heating warning light,
the display lighting and the passenger
compartment heater fan go off and
burning stops.
The fluid circulation pump continues to
work for around two minutes to
dissipate as much heat as possible; the
heater can be turned back on during
this stage.
22)
IMPORTANT The parking heater goes
off when battery voltage is low to allow
the vehicle to be started.
IMPORTANT Before turning on the
device, ensure that the fuel level is
above the reserve. Otherwise the
device could lock and require
the assistance of a Fiat Dealership.
❒Always turn off the heater when
refuelling and near service stations to
avoid the risk of explosion or fire
hazards.
❒Do not park the vehicle on
inflammable material such as paper,
grass or dry leaves: fire hazard!
❒The temperature near the heater
should not exceed 120°C (e.g. during
oven painting in a body shop). The
electronic control unit components
may be damaged at higher
temperatures.
❒Whilst the heater is operating with the
engine switched off, it absorbs
energy from the battery; the engine
should therefore be left running
for a while to make sure that the
battery is properly recharged.
45

❒To check the coolant level, follow the
instructions in the "Vehicle
maintenance" chapter, "Engine
coolant system fluid" paragraph. The
water in the heating circuit must
contain a minimum percentage of
10% antifreeze.
❒For maintenance and repairs, consult
only a Fiat Dealership and use only
original parts.
MAINTENANCE
Have the additional heater checked
regularly at a Fiat Dealership (and
always at the start of every winter). This
will guarantee safe and economic
operation of the heater as well as a long
duration.ADDITIONAL REAR
HEATING (Panorama and
Combi)
(for versions/markets, where provided)
The Panorama and Combi versions
are equipped with a main heating
system plus an additional system
(available on request) with controls in
the roof lining above the second row of
seats fig. 55.
In order to work the system must be
enabled through the button F fig. 56 on
the control panel.
Turn the knob D to the maximum cold
position (knob at blue sector); air at
ambient temperature will come out of
the rear footwell vents (located under
the seats in the 2nd and 3rd row for
Panorama versions and the grille on the
left wheel arch side for Combi
versions);Turn the knob D to the maximum
heating position (knob at red
sector);warm air will emerge (with the
engine warmed up), from the rear
footwell outlets (located under the seats
in the 2nd and 3rd row for Panorama
versions and the grille on the left wheel
arch side for Combi versions).
55F1A0062
MODEF
56F1A0305
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KNOW YOUR VEHICLE