Jaguar XJ (2008 year). Service manual — part 47

189

Front Climate Controls

R

Windshield defrost/demist

Frost and heavy misting

To remove frost or heavy
misting from the windshield,
press the DEF button.

• The blower switches on automatically

at a high speed, but the speed can be
increased or decreased manually if
required.

• Air conditioning switches on

automatically and cannot be
deselected.

• Recirculation is cancelled and cannot

be selected.

• The front screen heater and the rear

screen heater/door mirror heaters
switch on automatically, provided the
engine is running.

To deselect defrost mode, press AUTO
(recommended operating mode).

Light misting

To prevent or remove light
windshield misting, select
manual air distribution to

windshield and feet.

Heated screens and door mirrors

The front (F) and rear (R)
screen heaters may be
switched on and off in

any mode, including system off, but only
operate when the engine is running. The
door mirror heaters are also controlled by
the rear screen heater button.

The front screen heater (if fitted) switches
off automatically after 6½ minutes. The
rear screen and door mirror heaters
switch off automatically after 21 minutes.

The windshield heaters may be manually
deselected during the timed period using
the push buttons.

In cold ambient conditions, at the start of
a journey, the front and rear screen
heaters will switch on automatically for
the timed period.

Note: The top three lines of the rear
screen pattern are a concealed antenna
system and do not defrost the rear screen.

Air conditioning

Press to switch the air
conditioning on or off.

The air conditioning system is controlled
automatically in AUTO mode. Deselecting
A/C cancels AUTO mode.

The air conditioning system is also
switched on automatically in defrost
mode (DEF) but cannot be deselected.

Blower speed

Set the blower speed as
required with the rotary control
knob. Blower speed is shown
as a series of bars on the LCD
screen.

When operating in AUTO mode, blower
speed is controlled automatically (but not
displayed) and any adjustment of the
knob will cancel AUTO mode.

Note: In AUTO mode, the blower only
operates at low speed, if heating is
required, until the engine is warm.

Front Climate Controls

190

L

MANUAL AIR DISTRIBUTION

Air distribution is automatically controlled
in AUTO and defrost modes.

Press MODE to select manual
air distribution. Four air
distribution modes are available

and are selected in succession by
pressing the MODE button. A symbol is
displayed for the selected mode.

Airflow distributed to the
windshield and feet; select to
prevent or remove light misting
and when heating the interior.

Airflow directed to foot level;
select to heat the interior.

Airflow distributed to the face
and feet.

Airflow directed at face level
only; select to cool the interior.

AIR RECIRCULATION

Timed air recirculation

Press the button briefly to select
timed air recirculation. The fresh
air intake is opened and the

button LED extinguished at the end of the
time out period.

Latched air recirculation

Press and hold the button for a
few seconds to select latched air
recirculation. Selection is

indicated by the screen symbol and two
beeps.

Selecting latched air recirculation cancels
AUTO operation.

To deselect latched air recirculation,
press the recirculation button again, or
select AUTO.

TO SWITCH THE SYSTEM OFF

Press in the blower rotary
control knob to switch the
climate control system off.

If the blower control knob is

pressed again, the system will switch on
in the previous mode set.

4-Zone climate control system

If 4-zone climate control is fitted,
switching off front climate control (above)
will also cause the rear climate control
system to be switched off. Switching the
front system on again will not switch the
rear system on.

RAM AIR

With the climate control system switched
off, air recirculation is automatically
selected (intake flap closed). To select
fresh air with the system off, press the
MODE button to select one of the air
distribution modes.

With the blower switched off, the fresh
airflow results from the forward motion of
the vehicle (ram air effect).

191

Rear Climate Controls

R

Rear Climate Controls

CONTROL PANEL

1. Blower speed and system on/off.

2. Display panel.

3. Increase right zone temperature.

4. Decrease right zone temperature.

5. Select automatic operation.

6. Select air distribution.

7. Increase left zone temperature.

8. Decrease left zone temperature.

4-ZONE CONTROL

The rear climate control panel provides
independent temperature control of the
rear left and right passenger zones, when
the front control system is operating.

SWITCHING ON

The rear climate control system can only
be switched on if the front system is
already switched on. Switching on the
front system does not switch on the rear
system.

To switch on the rear climate control
system, press AUTO, or press in the
blower control knob (1).

AUTO OPERATION

Selecting AUTO (5) provides full
automatic temperature control, including
blower speed and air distribution, for both
rear positions.

TEMPERATURE CONTROL

The left and right zone temperatures are
set independently using the red (increase
temperature) and blue (decrease
temperature) in the same manner as the
front system.

HI/LO (maximum/minimum temperatures)
cannot be selected on the rear control
panel but selection of HI/LO on the front
panel will apply to all four zones,
overriding rear temperature selection.

MODE BUTTON

Press the MODE button (6) to select
manual air distribution; repeat presses will
cycle through the following options:
• Rear airflow to face level only.
• Rear airflow to face and feet levels.
• Rear airflow to feet only.

Selecting MODE will immediately cause
AUTO operation to be deselected.

BLOWER SPEED

Rotate the blower speed knob (1) to vary
the blower speed as indicated by the
changing number of bars shown on the
LCD display (2).

Adjusting the blower speed will
immediately cause AUTO operation to be
deselected.

Note: If defrost (DEF) is selected on the
front control panel, the rear system will
operate normally but with a limit on the
blower speed.

1

2

3

4

5

6

7

8

E86338

Rear Climate Controls

192

L

SWITCHING OFF

The rear system may be switched off
independently of the front system by
pressing in the blower control knob (1).

The rear system will be switched off if the
front system is switched off.