2004 JAGUAR XJ fuel

4-68 On the Road
Catalytic Converters
A few precautions on the use of vehicles
fitted with catalytic converters are
necessary. These are:
1. In order to maintain the efficiency of the emission control system it is
essential that unleaded fuel is used.
Use of leaded fuel will seriously
damage the catalytic converters.
2. Heavy impact on the converter casings must be avoided.
3. The engine settings must not be altered; they have been established to
ensure that the vehicle will comply
with stringent exhaust emission
regulations. Incorrect engine settings
could cause unusually high catalytic
converter temperatures and thus
result in damage to the converter and
vehicle. If adjustment to the settings is
considered necessary, this should be
performed by a Jaguar Retailer. 4. A correctly tuned engine optimises
exhaust emissions, performance and
fuel economy and it is recommended
that the vehicle is regularly
maintained.
5. Do not continue to operate the vehicle if any engine malfunction is evident;
malfunctions should be rectified
immediately. For instance, misfire,
loss of engine performance, excessive
oil consumption or engine run-on may
lead to unusually high catalytic
converter temperatures and may
result in damage to the converters and
vehicle.
6. The use of catalytic converters increases exhaust system
temperatures, therefore, do not
operate or park the vehicle in areas
where combustible materials such as
dry grass or leaves may come into
contact with the exhaust system. 7. Do not run the engine with either a
spark plug lead disconnected or a
spark plug removed. Do not use any
device that requires an insert into a
spark plug hole in order to generate air
pressure e.g. tyre pump, paint spray
attachment etc., as this could also
result in catalyti c converter damage.
8. The vehicle is designed for normal road use. Below are examples of abuse
which could damage the catalytic
converters and vehicle. These may
lead to a dangerous condition due to
excessively high catalytic converter
temperatures.
• Competition or off-road use.
• Excessive engine speed.
• Overloading the vehicle.
• Switching off the engine whilst in gear.

Roadside Emergency 6 - 3
6 Roadside Emergency
Inertia Switch
In the event of an accident, the inertia switch may trip
(depending on the severity an d type of impact), isolating
operation of the fuel pump. Once the switch has tripped it must
be reset before attempting to restart the engine.
The inertia switch is located behind the trim on the left-hand
side of the vehicle, forward of the front door post, below the
fascia. A finger access hole in the trim allows the driver to reset
the switch.
Resetting the Switch
!WARNING:
To avoid the possibility of fire or personal injury, do not
reset the inertia switch if you see or smell fuel.
If no fuel leak is apparent, reset the inertia switch as follows:
1. Turn the ignition switch to position ‘0’.
2. Press down the red reset butt on on the top of the inertia
switch.
3. Turn the ignition switch to position ‘II’, pause for a few seconds, then return the key to position ‘0’.
4. Make a further check for fuel leaks.

6 - 24 Roadside Emergency
Engine compartment fuse boxFuse No Fuse
Type Rating
(amps) Colour
Circuit
F1 ATO 10A Red Front ignition, UHEGO, fu el pump, rear ignition relay coils
F2 – F3 Not used
F4 ATO 30A Green Powerwash pump
F5 Not used
F6 ATO 40A Orange Air suspension compressor
F7 ATO 40A Orange Right-hand front screen heater or wiper park zone heater
F8 ATO 20A Yellow Right-hand dipped beam
F9 ATO 20A Yellow Left-hand dipped beam
F10, F11 Not used
F12 ATO 10A Red Engine control module
F13 ATO 10A Red Fuel injectors
F14 ATO 10A Red Purge valve, EGR valve, canister close valve (CCV), port deactivation, V6 intake manifold
tuning valves (IMTV), MAFS, air filter solenoid, radiator fan controller
F15 Not used
F16 ATO 20A Yellow Right-hand main beam, left-hand main beam
F17 ATO 10A Red Engine control module, transmission control module
F18 ATO 15A Blue Front fog lights, instrument cluster front fog status

Roadside Emergency 6 - 27
F17 ATO 5A Tan ABS module
F18 Not used
F19 ATO 5A Tan Ignition relay, ECM, REM, fuel pump relay, start relay
F20 ATO 5A Tan Telephone transceiver, TV module, VICS (Japan), voice module, rear telematics
F21 – F23 Not used
F24 ATO 10A Red PATS transponder
F25 ATO 10A Red Right-hand direction indicator and repe ater, right-hand front lamp, header console map
lamp
F26 ATO 15A Blue Screenwash pump
F27 ATO 10A Red ACC module
F28 ATO 10A Red Climate control modules (front and rear), driver’s door module (DDM)
F29 ATO 10A Red Air bag module, occupancy se nsing module, passenger weight sensor
F30 ATO 10A Red Voice, front/rear sound, DVD, telematics, TV
F31 ATO 15A Blue Sunroof
F32 ATO 5A Tan Front/rear parking aid, trailer tow module, battery backed sounder, voice module, telephone receiver
F33 ATO 5A Tan Transmission control, J-gate, generator
F34 ATO 5A Tan Navigation system
Fuse No
Fuse
Type Rating
(amps) Colour
Circuit

6 - 30 Roadside Emergency
F20 ATO 10A Red Heated door mirrors
F21 ATO 25A Natural Rear seat motors
F22 ATO 10A Red Accessory connector
F23 Not used
F24 ATO 20A Yellow Fuel pump driver module
F25 ATO 15A Blue Front accessory socket
F26 ATO 15A Blue Rear accessory socket
F27 ATO 10A Red Rear CD
F28 ATO 25A Natural Left-hand rear window
F29 Not used
F30 ATO 10A Red Generator, battery backed sounder, transit relay
F31 ATO 40A Orange Right-hand front seat
F32 ATO 30A Green Electric park brake actuator
F33 ATO 20A Yellow Rear electronic module (fuel pump)
F34 ATO 30A Green Power amplifier
F35 – F39 Not used
F40 ATO 25A Natural Right-hand rear window
Fuse No
Fuse
Type Rating
(amps) Colour
Circuit

Maintenance 7 - 3
7 Maintenance
Regular Checks
In the interests of safety and reliability,
it is advisable to carry out the following
checks at the recommended intervals,
and always before starting on a long
journey.
Daily
Check that there is sufficient fuel for the
journey intended, particularly at night
and before joining motorways.
Weekly
Tyres– Check the tyres, including the
spare, for condition and pressure.
Tyre pressures are explained on page 8 - 8
and shown on a label inside the fuel filler
flap.
Lights – Check that all exterior lights and
direction indicators function correctly
and that the lenses are clean.
Engine oil – With the vehicle standing
on level ground, check the oil level and
top up if necessary with oil of the correct
grade.
Engine coolant – With the engine cold,
check the level of the coolant in the
coolant reservoir header tank. Any loss of
fluid must be checked by a Jaguar
Retailer. Brake fluid
– Check the level of the fluid
in the brake fluid reservoir. Top up if
necessary with new, unused Jaguar
approved brake fluid.
The reservoir is initially nearly full,
but the level will drop as the brake pads
wear. If the level appears unusually low,
location of the fluid leakage must be
checked by a Jaguar Retailer.
Power steering fluid – With the engine
cold, check the level of the fluid in the
power steering fluid reservoir. Top up if
necessary with fluid of the correct
specification. Any loss of fluid should be
checked by a Jaguar Retailer.
Windscreen washer fluid – Top up
with windscreen washer fluid and clean
soft water. Check the operation of the
washers. It is recommended that you
use Jaguar Windscreen Washer Fluid to
keep the glass clean and also to prevent
the fluid from freezing during cold
weather.
Monthly
Wiper blades – Check the quality of the
wipe. If smearing or juddering is evident,
clean the windscreen and wiper blades.
Used Engine Oil
!WARNING:
Prolonged and repeated contact may
cause serious skin disorders,
including dermatitis and cancer.
Always use a hand cream to protect the
skin from oil contamination.
Avoid contact with the skin as far as
possible and wash thoroughly after any
contact. Keep oils out of reach of
children.
PROTECT THE ENVIRONMENT: It is
illegal to pollute drai ns, watercourses and
soil. Use authorised waste collection
facilities, including civic amenity sites and
garages providing fa cilities for the
disposal of used oi l, oil filters and
batteries. If in doubt, contact your Local
Authority for advice on disposal.

Maintenance 7 - 7
Recommended Engine Oil
When the oil level is at the lower dipstick mark, add 1 US quart
(1.0 litre) of oil.Oil specification
– API SJ/EC and ILSAC GF–3
When topping up between oil chan ges, make sure that you use
oil that has the correct quality le vel (API service) and viscosity
grade. Your vehicle’s warranty ma y be invalidated if damage is
caused by use of improper engine oil.
For maximum fuel economy, 5W–30 oil is recommended.
SAE viscosity rating
For climates ranging from –22°F (–30°C) and +122°F (+50°C),
the following oil viscosities may be used:
0W–30
5W–30 (preferred)
0W–40
5W–40
Note: It is recommended that the oil level is topped up using oil
of the same viscosity. If you are unsure which oil viscosity is used
in your car, your Jaguar Retailer will be able to advise.
If you are operating this vehicle in climates outside the above
temperature range, contact your Jaguar Retailer for advice.
Jaguar recommends

7-18 Maintenance
Tyres
Tyres of the correct type, manufacturer
and dimensions, with correct cold
inflation pressures are an integral part of
every vehicle’s design. Regular
maintenance of tyres contributes not only
to safety, but to the de signed function of
the vehicle. Road-holding, steering and
braking are especially vulnerable to
incorrectly pressurised, badly fitted or
worn tyres.
Tyres of the correct size and type, but of
different make have widely varying
characteristics. It is therefore
recommended that Jaguar approved tyres
are fitted to all wheels.
A tyre recommendation placard is placed
on the inside of the fuel filler flap, giving
information specific to the vehicle’s
wheel and tyre equipment.
Always ensure that the wheel nuts are
fully seated before finally tightening the
nuts in alternate sequence.
W, Y and Z-rated performance tyres are
optimised for driving dynamics and have
limited winter traction ability. Compared
with H-rated all-season tyres, they may
incur increased tread wear, reduced ride
comfort, and increased road noise.
Tyre Renewal
When renewing tyres, it is preferable to
fit a complete vehicle set. If either front
or rear tyres only need to be renewed,
new tyres must be fitted, as axle sets,
to replace worn ones. After new tyres
have been fitted the wheels need to be
dynamically balanced. The radial ply
tyres specified are designed to meet the
high-speed performance capability of this
vehicle (see page 8 - 7) . Do not fit tyres
with a different tread pattern, size or
speed rating.
Tyre Pressures
The recommended tyre pressures are
written on a label, inside the fuel filler
flap. These tyre pressures provide
optimum ride and handling
characteristics for all normal operating
conditions. The pressures should be
checked, and correctly set each week
with the tyres cold. Tyre temperatures
and pressures increase when running.
Deflating a warm tyre to the
recommended pressure will result in
under inflation whic h may be dangerous.
A slight natural pressure loss occurs with
time. If this exceeds 2 lbf/in² (0.14 bar,
14 kPa, 0.14 kg/cm²) per week, the cause
should be investigated and rectified.
Note: It is an offence in certain countries
to drive a vehicle with tyres that are not
inflated in accordance with the vehicle’s
proper use.