2004 JAGUAR XJ Tyres

Maintenance
Regular Checks . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 3
Hood Release . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 4
Checking and Top Up . . . . . . . . . . . . . . . . . . . . . 7 - 6
Check Engine Oil Level . . . . . . . . . . . . . . . . . . . . 7 - 6
Check Power Steering Fluid Level . . . . . . . . . . . . 7 - 8
Check Brake Fluid Reservoir . . . . . . . . . . . . . . . . 7 - 9
Check Windscreen/Headlight Washer Reservoir. . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 10
Check Coolant Level . . . . . . . . . . . . . . . . . . . . . 7 - 11
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 12
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 13
Battery Warning Signs. . . . . . . . . . . . . . . . . . . . 7 - 14
Check/Top Up Battery Electrolyte . . . . . . . . . . . 7 - 15
Windscreen Wipers . . . . . . . . . . . . . . . . . . . . . 7 - 17
Tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 18
Tyre Pressures . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 18
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 22
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 22
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 23
Electrical Accessories . . . . . . . . . . . . . . . . . . . . 7 - 25

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.

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.

Maintenance 7 - 19
Wear
All tyres fitted as original equipment
include tread wear indicators (TWI) in
their tread pattern. When the tread has
worn to a remaining depth of 1.6 mm the
indicators appear at the surface as bars
which connect the tread pattern across
the full width of the tyre.
It is illegal, in certain countries,
to continue to use tyres after the tread
has worn to less than 1.6 mm over three
quarters of the width and the entire
circumference of the tyre.It should be noted that the properties of
many tyres alter progressively with wear.
In particular the ‘wet grip’ and
aquaplaning resistance are gradually but
substantially reduce
d. Extra care and
speed restriction should therefore be
exercised on wet roads as the effective
tread depth diminishes.
Incorrect wheel alignm ent will accelerate
tyre wear. Fins on the inner or outer
edges of the tread pattern are caused by
excessive toe-in or toe-out respectively.
As fins may also be caused by high
cornering speeds or road camber, it is
advantageous to have the cause detected
by having the wheel alignment checked.
Tyre repair
It is recommended that damaged tyres
are discarded and new tyres fitted.
They must not be repaired in view of the
high performance capability of the
vehicle. Damage
Excessive local distortion can cause the
casing of a tyre to
fracture and may lead
to premature failure. Tyres should be
examined especially for cracked walls,
exposed cords, etc. Flints and other sharp
objects must be removed from the tyre
tread; if left in they may work through the
cover. Clean off any oil or grease
contamination by using a suitable
cleaner.
Caution: Do not use paraffin
(kerosene), because this has a
detrimental effect on rubber.
Tyre use after vehicle storage
After a long period of a vehicle standing,
tyres may become locally distorted with a
flat area. This will cause an uneven ride
for a few miles until the tyres have
warmed up and the ‘flat’ rounds off.
However, to reduce the effects of
flat-spots, the tyres of a stored vehicle
may be inflated to pressures not
exceeding 60 lbf/in² (4.2 bar, 420 kPa,
4.3 kg/cm²).

7-20 Maintenance
United States Department of
Transportation/Uniform Tyre Quality
Grades
The following information relates to the
tyre grading system developed by the
National Highway Traffic Safety
Administration which will grade tyres by
tread wear, traction and temperature
performance.
Tread wear
The tread wear grade is a comparative
rating based on the wear rate of the tyre
when tested under controlled conditions
on a specified government test course.
For example, a tyre graded 150 would
wear one and a half (1.5) times as well on
the government course as a tyre
graded 100.
The relative performance of tyres
depends upon the actual conditions of
their use, however, and may depart
significantly from the norm due to
variations in driving habits, service
practices and differences in road
characteristics and climate. Traction – A, B, C
The traction grades, from the highest to
the lowest are ‘
A’, ‘ B’ and ‘ C’, and they
represent the tyre’s ability to stop on wet
pavements as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tyre
marked ‘ C’ may have poor traction
performance.
!WARNING:
The traction grade assigned to this
tyre is based on braking (straight
ahead) traction tests and does not
include cornering (turning) traction. Temperature – A, B, C
The temperature grades ‘
A’ (the highest),
‘ B ’ and ‘C ’ representing the tyre’s
resistance to the generation of heat and
its ability to dissipate heat when tested
under controlled conditions on a
specified indoor laboratory test wheel.
Sustained high temperature can cause the
material of the tyre to degenerate and
reduce tyre life, and excessive
temperature can lead to sudden tyre
failure.
The grade ‘ C’ corresponds to a level of
performance which all passenger car
tyres must meet under the Federal Motor
Vehicle Safety Standard No. 109.
Grades ‘ B’ and ‘ A’ represent higher levels
of performance on the laboratory test
wheel than the minimum required by
law.
!WARNING:
The temperature grade for this tyre is
established for a tyre that is properly
inflated and not over loaded.
Excessive speed, under-inflation or
excessive loading, either separately
or in combination, can cause heat
build-up and possible tyre failure.

Maintenance 7 - 21
Winter (Snow) Tyres
The tyres fitted as original equipment are
designed with a rubber compound, tread
pattern and width specially suited for
high speeds in normal road conditions,
but they are less suitable during extremes
of low temperatures, snow and ice.
The use of winter tyres will considerably
improve the vehicle’s handling during
these conditions.
It is recommended that only Jaguar
approved winter tyres are used (refer to
Wheels and Tyres on page 8 - 7).
!WARNING:
Do not exceed the tyre speed rating
when using winter tyres.
Tyre directional indicators must be
rotating in a clockwise direction when
viewed from the right-hand side of the
vehicle, and anti-clockwise when viewed
from the left-hand side of the vehicle.
Winter tyres must be used in vehicle sets,
that is, fitted on all four wheels.
Snow Chains
Snow chains, of the recommended type,
may only be fitted to rear wheels.
Contact your Jaguar Retailer for details
and availability of approved snow chains.
The maximum speed when using snow
chains is 30 mph (48 km/h).
Remove the snow chains immediately the
roads are clear of snow.
Ensure the fitting instructions supplied
with the snow chains are kept in a safe
place, for example, wi th this literature
pack.
Note: Dynamic Stability Control MUST
be switched OFF when using snow chains.

7-24 Maintenance
Cleaning the rear screen
To avoid damaging the heating and radio
elements when cleaning the inside of the
rear screen use only a soft damp cloth or
chamois leather. Do not use solvents or
sharp objects to clean the glass.
Polishing paintwork and brightwork
For maximum protection against road
dust, salts, industrial fall-out etc., it is
recommended that the vehicle is polished
regularly using Jaguar Polish and a
Polishing Cloth.
Note:The vehicle’s brightwork should be
cleaned in the same way as the paintwork:
Chrome polish or other abrasive cleaners
must not be used. Paint chips
Scratches and chips should be touched in
before weathering action begins. Inspect
the paintwork imme
diately after the
vehicle has been washed.
Underhood cleaning
Underhood cleaning using high pressure
hoses or steam cleaners should be done
by a Jaguar Retailer. Indiscriminate use of
cleaning equipment could damage or
contaminate the electronic control
modules and fuse boxes.Care of Alloy Road Wheels
The alloy road wheels are covered with a
protective anti-corrosion coating.
To prevent corrosion it is essential that
this coating is not damaged.
When removing or fitting tyres always
advise the tyre fitte r to treat the alloy
wheels with great care and to only use
equipment with spigot or stud hole
clamping. The equipment must not have
any moving parts which contact the
wheel, and tyre levers must not be used.
Wash the wheels with soap and water at
two week intervals to avoid an
accumulation of particles which could
become embedded in the wheel surface.
In salty conditions the wheels should be
cleaned weekly.

Specifications
Vehicle Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 3
Weights (Average/Approximate) . . . . . . . . . . . . . 8 - 4
Roof-rack Capacity and Trailer Weights . . . . . . . 8 - 5
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 6
Wheels and Tyres . . . . . . . . . . . . . . . . . . . . . . . . 8 - 7
Tyre Pressures . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 8
Tow-bar Fixing Points . . . . . . . . . . . . . . . . . . . . . 8 - 9