2004 JAGUAR XJ engine

Before Driving 3 - 5
Heated Seats
Some seats have heaters in the backrests
and cushions. The heaters have three
heat settings and each seat has its own
control.
The front seat buttons are located at the
top of the centre console.
With the engine running, pressing a
heater button will select the highest heat
setting, as indicated by three illuminated
red lights.
A second press selects the mid setting
(two red lights) and a third press selects
the lowest heat setting (one red light).
A fourth press turns the seat heater off;
all indicator lights off. The rear seat heater buttons are located
below the rear air vents.
Note:
The heater will automatically
switch off if the engine is turned off or if a
fault is detected.
A heater will maintain a preset
temperature while it is switched on.
Storage of the vehicle in a heated garage,
body heat or warm ambient temperatures
may prevent operation of the seat heater.
Heated Steering Wheel
A heater is incorporated in the steering
wheel rim and operates in conjunction
with the driver’s seat heater. The steering
wheel heater is switched on in any of the
three driver seat heater positions.

On the Road 4 - 3
4 On the Road
Instruments
None of the instruments will show
correct indications until the ignition is
switched ON (position ‘II’).
If the exterior light switch is ON and the
ignition is ON, the display brightness can
be varied using the dimmer switch
(page 4 - 25).
Tachometer (A)
The tachometer indicates engine speed in
revolutions per minute and is calibrated
in increments of 250 rev/min extending
to 8000 rev/min (to 7000 rev/min for
supercharged vehicles).
Caution: Do not allow the needle to
enter the red sector.
Speedometer (B)
Speed indication is in either:
USA– Miles per hour, the outer figures,
and kilometres per hour on the inner
ring.
Canada and Mexico – Kilometres per
hour, the outer figures, and miles per
hour on the inner ring,
Odometer (C)
Records the total distance covered by the
vehicle.
The odometer reading is displayed below
the speedometer, al ong with the trip
distance since it was last reset. To reset
the trip distance, press the reset button
on the trip computer switchpack. The trip
distance will roll-over at 9999.9 miles
(or 16,090 kilometres).
The odometer is displayed in the message
centre unless a message has priority or a
trip computer function has been selected.
Fuel Level Gauge (D)
Indicates the amount of fuel in the tank.
A warning light is displayed in the gauge
when the fuel in the tank is at a low level.
The tank should be refilled at the earliest
opportunity.
The small arrow, shown beside the fuel
pump symbol, identifies on which side of
the vehicle the filler cap is located.

4-4 On the Road
Engine Temperature (E)
Drive at moderate road and engine
speeds until normal operating
temperature is reached. This is indicated
when the pointer is between the
blue (cold) segment and the red (hot)
segment.
The engine operating temperature will
vary with changes in weather and engine
load. The engine temperature may rise in
some circumstances, such as:
• Idling for long periods in slow moving traffic.
• Driving up a long hill in hot weather.
• Driving slowly or stopping after driving at high speed.
• Towing a trailer or caravan.!WARNING:
1. The radiator cooling fans may continue to run after the ignition
has been switched off but will
automatically switch off when the
engine has cooled sufficiently.
2. It is unsafe to run the engine in an overheated condition.
3. Do not remove the coolant reservoir filler cap while the
engine is hot. If it is essential, then
protect your hands against
escaping steam. SLOWLY turn the
cap anti-clockwise to allow the
steam pressure to escape
completely before removing the
cap. Should the pointer move into the red
segment (
H) of the coolant gauge, stop
the vehicle as soon as it is safely possible,
turn off the engine and open the hood to
allow the engine to cool.

On the Road 4 - 5
Warning Lights
Warning lights are arranged within the
instrument cluster.
There are two warning lights, one red,
the other amber, located above the
message centre for primary and
secondary status of the warnings
displayed by the message centre.
‘RED’ warning lights are for primary
warnings. A primary warning must be
investigated immediately by the driver or
a Jaguar Retailer.
‘AMBER’ warning lights are for secondary
warnings when the driver must take
action and then report the fault to a
Retailer at the earliest opportunity.
Other lights within the instrument cluster
indicate system status, such as blue for
main beam and green for direction
indicators, when in operation. Lamp check
A lamp check is initiated when the
ignition is switched ON and lasts for
three seconds (excepting the air bag
warning light which will remain on for
6seconds). Ifany wa
rning light remains
on after this period, investigate the cause
before driving.
Note: Not all lamps are included in the
lamp check, for example main beam
headlights or direction indicators.
Low Oil Pressure (RED)
This lights up with the ignition
switched ON and should go
out once the engine is running.
If the light remains ON once the engine
has started or comes ON whilst driving,
loss of oil pressure is indicated.
STOP the engine immediately and
investigate the cause.
Caution: Do not restart the engine
until the cause of loss of oil pressure
has been identified and rectified.
First check the engine oil level,
seepage7-6.

4-6 On the Road
Charge Indicator (RED)
This lights up when the ignition
is switched ON and should go
out when the engine is
running.
If the light stays ON when the engine is
running it indicates that there is either a
battery voltage fault or a generator fault.
Turn OFF all electrical accessories, radio,
climate control, rear screen heater etc.
Try to use the minimum electrical load as
possible such as power windows, electric
sunroof etc. Report the fault to a Jaguar
Retailer.
Seat Belt (RED)
The warning lamp lights when
the ignition is ON and:
• The driver’s seat belt is not fastened.
• A passenger is sitting in the front seat and their seat belt is not fastened.
The light should go out when the driver’s
seat belt (and the front passenger’s if the
seat is occupied) is fastened.
Note: The vehicle must be moving above
10 mph (16 km/h) for the lamp to
illuminate if the passeng er seat belt is not
fastened.
Beltminder
The Beltminder feature is a supplemental
warning to the seat be lt warning function.
This feature provides additional
reminders to the driver that the driver’s
and/or front passenger’s seat belt is
unbuckled by intermittently sounding a
chime and illuminating the seat belt
warning light in the instrument cluster. If the vehicle is moving above 10 mph
(16 km/h) and one or both front seats are
occupied and a seat belt is not fastened,
a warning chime will be heard and the
light will flash.
The chime sound and the light flashing
will last for 10 seconds and then repeat
every 30 seconds for five minutes or until
the belts are fastened or the vehicle
stops.
If the warning light stays ON steady with
the seat belt(s) fastened, report the fault
to a Jaguar Retailer. It is safe to drive the
vehicle with the light ON steady,
provided that the seat belt(s) is properly
fastened. Ensure that all occupants seat
belts are fastened before driving.
Although not advisable, it is possible to
disable or reinstate the Beltminder
function. Please see a Jaguar Retailer.
Note:
If a heavy object is placed on the
front passenger seat it may activate the
Beltminder feature. It is recommended
that the object be placed in the luggage
compartment.

On the Road 4 - 7
Brake (RED)
Lights up when:
• The ignition is ON and the parkbrake is ON.
• There is a fault with the parkbrake.
• The brake fluid is low.
If the light is ON and there are no
associated messages it means that the
parkbrake is applied.
If the light flashes, th ere is a fault with the
parkbrake system and the parkbrake
cannot be applied.
If the light is ON and the message
‘PARKBRAKE ON’ is displayed, it means
that the parkbrake is applied but the
vehicle is moving. Release the parkbrake
or stop the vehicle when it is safe to do
so. If the light is ON and the message ‘LOW
BRAKE FLUID’ message with a RED
priority light is displayed on the message
centre, low brake fluid is indicated.
In this case, loss of braking in one,
or both, brake circuits may be imminent.
!WARNING:
If the message ‘LOW BRAKE FLUID’ is
displayed, DO NOT drive the vehicle
until the fault is rectified. Consult a
Jaguar Retailer immediately.
Anti-lock Braking
System (ABS) (AMBER)
If a fault has been detected in
the anti-lock brake
system (ABS) or the electric
parkbrake system, this light will
illuminate.
A warning message will appear with this
light to indicate either ABS fault or
parkbrake fault.
The brake system will continue to
function normally, but without ABS
braking.
Should the light come on or stay on after
the bulb check cycle, stop the vehicle at
the first opportunity, turn the engine OFF
and then restart.
If the ABS light comes on again,
the vehicle should be driven to a Jaguar
Retailer at the earliest opportunity.
!WARNING:
If the ABS and brake warning lights
are ON at the same time, DO NOT
drive the vehicle until the fault is
rectified. Consult a Jaguar Retailer
immediately.

4-8 On the Road
Dynamic Stability Control
(DSC) (AMBER)
The light will flash at the rate of
twice a second when DSC is
operating.
The message ‘DSC NOT AVAILABLE’ will
be displayed and the light will be ON
continuously when a fault is detected in
the system.
If the system is turned OFF, a message
‘DSC OFF’ will be displayed for 4 seconds
and the warning light will remain ON.
Engine Malfunction (AMBER)
This light comes on when the
ignition is on and remains on
until the engine is started.
If the light comes on when the engine is
running then there is an engine
malfunction.
Specialised diagnostic equipment is
required to repair such faults. Report the
fault to a Jaguar Retailer.
The vehicle may go to ‘limp-home’ mode,
with the possibility of reduced engine
performance. Drive the vehicle with
caution.
ACC Follow Mode (AMBER)
If adaptive cruise control is
active, this lights up to indicate
that the vehicle is in ‘follow
mode’ and automatically maintaining the
desired gap to the vehicle immediately
ahead.
Only applicable to vehicles fitted with
adaptive cruise control.
Air Bag (AMBER)
If the air bag system develops a
fault, the warning light will
flash and then come ON and
remain on until the fault has been
diagnosed and cleared.
Report the fault to a Jaguar Retailer
immediately.
It is safe to drive the vehicle; however,
in an accident the air bags may not
operate.

4-16 On the Road
Messages
The table on this and the following pages lists all messages and warning lights and explains their meaning.
Message Warning
Light Priority
Indicator Meaning
LOW BRAKE FLUID Brake Red Displayed when the brake fluid level is low. Complete loss of braking may occur.
!WARNING:
DO NOT drive the vehicle until the fault is rectified. Consult a Jaguar
Retailer immediately.
ENGINE
COOLANT LOW None Red Displayed when the coolant level in
the reservoir is too low or is empty.
Check temperature gauge often. The coolant reservoir should be topped up at the
earliest opportunity and any leaks repaired.
CATS SYSTEM FAULT None Amber Displayed when a fault is detected in the adaptive damping (CATS) system (only those vehicles fitted with adaptive damping suspension). Report the fault to a
Jaguar Retailer at the earliest opportunity.
RESTRICTED
PERFORMANCE None Red This will be displayed when the vehicl
e has possible loss of power or driveability.
Report the fault to a Jaguar Retailer.
ENGINE SYSTEMS FAULT Malfunction
Indicator lamp Red Displayed when the engine has defaulted to ‘limp-home’ mode.
Report the fault to a Jaguar Retailer at the earliest opportunity.