inflation pressure JAGUAR XF 2009 1.G Owners Manual

55
Supplementary restraints system

Note: The general location of airbags fitted to
the vehicle are marked by the word AIRBAG.
Always contact your Dealer/Authorised
repairer if:-
• An airbag inflates.
• The front or sides of the vehicle are
damaged.
• Any part of the SRS shows signs of
cracking or damage, including trim
covering airbags.
Airbag operation
Airbags cannot deploy co rrectly if they are
obstructed. Examples of obstructions are:-
• Any part of an occu pants body in contact
with, or close to, an airbag covering.
• Objects placed on, or close to, an airbag
cover.
• Clothing, sun screens, or other material
hanging from grab handles.
• Clothing, cushions, or other material,
covering seat mounted airbags.
• Seat covers which are not approved by
Jaguar, or specifical ly designed for use
with seat mounted airbags.
• Luggage that intrudes into the area that
will be occupied by a deploying airbag
system.
This list is not exhausti ve and it remains the
responsibility of the driv er and passengers to
ensure that the airbags are not obstructed in
any way.
Deployment and deflation
In the event of a collisi on, the restraints control
system monitors the rate and direction of
deceleration. If required to supplement the seat
belts, airbags will be deployed as appropriate.
After operation, frontal airbags do not retain
pressure.
Front airbags
The front passenger’s and driver’s airbags are
able to deploy in two stages, depending on the
severity of the frontal impact. In a severe
impact, the airbags inflate fully to offer
maximum protection. In a lower severity
impact, less inflation ma y be required, so the
airbags inflate in a different manner.
WARNINGS
Phone systems should only be
installed by qualified persons familiar
with the operation of, and
requirements for, vehicles fitted with SRS. If
you are in any doubt, seek advice from your
Jaguar Dealer/Authorised repairer.
WARNINGS
For the airbags to operate correctly
the roof lining and door post trims
must be in good condition, correctly
fitted, and free from obstruction. Any damage,
wear, or incorrect fitmen t should be referred to
your Dealer/Authorised repairer as soon as
possible for examination and repair.
Do not allow passe ngers to obstruct
the operation of the airbags by
placing any part of their person, or
any objects, in contact with, or close to, an
airbag module. Airbags deploy at very high
speeds and can cause se rious injury or death
if objects or occupants are within the area of
deployment.

217
Wheels and tyres

11.Wear rate indicator. A tyre rated at 400 for
example, will last twice as long as a tyre
rated at 200.
12. The traction rating grades a tyres
performance when stopping on a wet road
surface. The higher the grade the better the
braking performance. The grades from
highest to lowest are, AA, A, B, and C.
13. The maximum load which can be carried
by the tyre.
14. Heat resistance grading. The tyre's
resistance to heat is grade A, B, or C, with
A indicating the greatest resistance to heat.
This grading is provided for a correctly
inflated tyre, which is being used within its
speed and loading limits.
15. The maximum inflation pressure for the
tyre. This pressure should not be used for
normal driving.
† Speed ratings
TYRE CARE
Tyre pressures
Rating Speed km/h (mph)
Q 160 (99)
R 170 (106)S 180 (112)
T 190 (118)
U 200 (124)
H 210 (130)
V 240 (149)
W 270 (168) Y 300 (186)
WARNINGS
Defective tyres are dangerous. Do not
drive the vehicle if a tyre is damaged,
excessively worn, or incorrectly
inflated. Doing so may lead to premature tyre
failure.
Avoid contaminating the tyres with
vehicle fluids as they may cause
damage to the tyre.
Avoid spinning the wh eels. The forces
released can damage the structure of
the tyre and cause it to fail. Doing so
may lead to premature tyre failure.
If wheel spin is unavoidable due to a
loss of traction (i n deep snow, for
example), do not exceed the 50 km/h
(30 mph) point on the speedometer. Doing so
may lead to premature tyre failure.
Do not exceed the maximum pressure
stated on the sidewall of the tyre.
Over-inflation could cause the tyre to
fail suddenly.
WARNINGS
Never drive your vehicle if the tyre
pressures are incorrect.
Under-inflation causes excessive
flexing and uneven tyre we ar. This can lead to
sudden tyre failure. Ov er-inflation causes a
harsh ride, uneven tyre wear and poor
handling.
Pressure checks should only be
carried out when the tyres are cold,
and the vehicle has been stationary
for more than three hours. A hot tyre at or
below recommended cold inflation pressure is
dangerously under-inflated.

Wheels and tyres
218

All of the vehicle's tyres (including the spare)
should be checked regularly for damage, wear
and distortion. If you are in any doubt about the
condition of a tyre, have it checked immediately
by a tyre repair centre or your
Dealer/Authorised repairer.
Checking the tyre pressures
The recommended tyre pressures are listed on
a placard label fixed to the end of the left-hand
side door. These pressures provide optimum
ride and handling charac teristics for all normal
operating conditions.
If winter tyres are fitted, please refer to the
winter tyre pressure information. SeeUSING
WINTER TYRES (page 223).
In the interest of safe ty, reliability and fuel
efficiency, check the tyres, including the spare,
for condition and pressu re on a weekly basis
and before long journeys.
Do not check tyre pressures immediately after
the vehicle has travelled in excess of 1.6 km
(1.0 mile). Tyre temperatures and pressures
increase when running. Deflating a warm tyre
to the recommended pressure will result in
under-inflation.
If tyre pressures are checked while the vehicle
is inside a protected covered area, e.g. a
garage, and subsequent ly driven in lower
outdoor temperatures, tyre under-inflation
could occur.
A slight pressure loss occurs naturally with
time. If this exceeds 0.14 bar (2 lbf/in², 14 kPa,)
per week, have the cause investigated and
rectified by qualified assistance.
Tyre pressures (including the spare) should be
checked at least once a week with normal
on-road use, but should be checked daily if the
vehicle is used off-road. Always check the tyre
pressures before setti ng off on a long journey.
If it is necessary to check tyre pressures when
the tyres are warm, you should expect the
pressures to have increased by up to
0.3-0.4 bar (4-6 lbf/in², 30-40 kpa). Do not
reduce the tyre pressures to the cold inflation
pressure under these circumstances. Allow the
tyres to cool fully before adjusting the
pressures.
If the vehicle has been parked in
strong sunlight, or used in high
ambient temperatures do not reduce
the tyre pressures. move the vehicle into the
shade and allow the tyres to cool before
re-checking the pressures.
WARNING
Tyre pressures should be checked
regularly using an accurate pressure
gauge, when the tyres are cold.
Failure to properly maintain your tyre
pressures could increase the risk of tyre failure
resulting in loss of vehicle control and
personal injury.
WARNINGS
E95180

219
Wheels and tyres

The following procedure should be used to
check and adjust the tyres pressures.
1.Remove the valve cap.
2. Firmly attach a tyre pressure gauge/inflator
to the valve.
3. Read the tyre pressure from the gauge,
and add air if required.
4. If air is added to the tyre, remove the gauge
and re-attach it be fore reading the
pressure. Failure to do so may result in an
inaccurate reading.
5. If the tyre pressure is too high, remove the
gauge and allow air out of the tyre by
pressing the centre of the valve. Refit the
gauge to the valve and check the pressure.
6. Repeat the process a dding or removing air
as required until the correct tyre pressure
is reached.
7. Refit the valve cap.
Note: It is an offence in certain countries to
drive a vehicle with incorrect tyre pressures.
Note: It is the driver's responsibility to ensure
that the tyre pressures are correct.
Tyre valves
Keep the valve caps screwed down firmly to
prevent water or dirt entering the valve. Check
the valves for leaks when checking the tyre
pressures.
Pressure compensation for ambient
temperature changes
If the intended journey will take the vehicle into
an area where the ambien t local temperature is
known to be lower than the journey start point,
tyre pressure under-i nflation could occur. A colder ambient local temperature will reduce
pressure within the tyre. An effect is to
decrease sidewall height
and to increase tyre
shoulder wear with the potential for tyre failure.
Vehicle dynamics could also be adversely
affected.
In order to minimise this effect, tyre pressures
can be adjusted to compensate before the start
of the journey. Alternatively, tyre pressures can
be adjusted when the area of lower ambient
temperature is reached.
In this situation, the vehicle must be left in the
ambient local temperature for a least one hour
before tyre pressu re is adjusted.
To compensate for colder ambient
temperatures, tyre pressures should be
increased by 0.14 bar (2lbf/in², 14 kPa) for
each 10°C (20°F) decrease.
Note: Ensure that correct tyre pressures are
maintained when moving to areas of differing
ambient temperature.
The Tyre Pressure M onitoring system (TPM
system) may issue a warning if the
under-inflation becomes significant. When
driving through variable climatic conditions the
TPM system warnings may be intermittent.
E95181

Wheels and tyres
230

Jaguar tyre repair kit safety information
WARNINGS
Some tyre damage may only be
partially sealed, or may not seal at all,
depending on the amount and type of
damage. Any loss of tyre pressure can
seriously affect vehicle safety.
Do not use the tyre repair kit if the tyre
has been damaged by driving while
under-inflated.
Only use the tyre repair kit to seal
damage located within the tyre tread
area.
Do not use the tyre repair kit to seal
damage to the tyre sidewall.
Do not exceed 80 km/h (50 mph)
when a repaired tyre is fitted to the
vehicle.
The maximum distan ce that should
be driven when a repaired tyre is
fitted, is 200 km (125 miles).
When a repaired tyre is fitted, drive
with caution and avoid sudden
braking or steering manoeuvres.
Only use the tyre repair kit for the
vehicle with which it was supplied.
Do not use the tyre repair kit for any
other purpose than tyre repair.
Never leave the tyre repair kit
unattended when in use.
Only use the tyre repair kit within the
-30 °C to +70 °C temperature range.
Always keep children and animals at a
safe distance from the tyre repair kit
when in use.
Do not stand dire ctly beside the
compressor when it is operating.Check the tyre sidewall prior to
inflation. If any cracks, damage or
deformities are apparent, do not
inflate the tyre.
Watch the tyre sidewall during
inflation. If any cracks, bumps or
similar damage, or deformities
appear, switch off the compressor and deflate
the tyre.
WARNINGS

231
Wheels and tyres

Jaguar tyre repair kit
1.Maximum speed label. 80 km/h (50 mph).
2. Tyre inflation hose.
3. Inflation hose protective cap.
4. Inflation hose connector.
5. Compressor power cable.
6. Power cable connector. 7.
Sealant bottle receiver cap (orange).
8. Sealant bottle receiver.
9. Sealant bottle cap.
10. Sealant bottle.
11. Tyre pressure gauge.
12. Compressor on/off switch ( I = on. 0 = off.).
E96498
34
2
6
5
1
12
11
8
9
10
7

Wheels and tyres
232

Using the Jaguar tyre repair kit
Note: All vehicle drivers and occupants should
be made aware that a temporary repair has
been made to a tyre fitted to the vehicle. They
should also be made aware of the special
driving conditions im posed when using a
repaired tyre.
Repair procedure
1. Open the tyre repair kit and peel off the
maximum speed label. Attach the label to
the fascia in the driver's field of vision.
Take care not to obstruct any of the
instruments or warning lights.
2. Uncoil the compressor power cable and
the inflation hose.
3. Unscrew the orange cap from the sealant
bottle receiver and the sealant bottle cap.
4. Screw the sealant bottle into the receiver
(clockwise) until tight.
•Screwing the bottle onto the receiver will
pierce the bottle's se al. Do not unscrew
a full, or partly us ed bottle from the
receiver. Doing so will result in sealant
leaking from the bottle.
5. Remove the valve cap from the damaged
tyre.
6. Remove the protective cap from the
inflation hose and connect the inflation
hose to the tyre valve. Ensure that the hose
is screwed on firmly.
7. Ensure that the compressor switch is in
the off (0) position.
8. Insert the power cable connector into the
auxiliary power socket. See AUXILIARY
POWER SOCKETS (page 125).
WARNINGS
Avoid skin contact with the sealant
which contains natu ral rubber latex.
If the tyre inflati on pressure does not
reach 1.8 bar (26 lbf/in², 180 kPa)
within seven minutes, the tyre may
have suffered excessive damage. A temporary
repair will not be poss ible, and the vehicle
should not be driven until the tyre has been
replaced.
CAUTIONS
Before attempting a ty re repair, ensure
that the vehicle is parked safely, as far
away from passing traffic as possible.
Ensure that the parki ng brake is applied
and P (Park) is selected.
Do not attempt to remove foreign
objects such as nails, screws, etc. from
the tyre.
Always run the engine when using the
compressor, unless the vehicle is in an
enclosed or poorly ventil ated space, as this
may cause asphyxiation.
To prevent overheating, do not operate
the compressor continuously for longer
than ten minutes.
WARNING
Check the tyre sidewall prior to
inflation. If there are any cracks,
bumps or similar damage, do not
attempt to inflate the tyre. Do not stand
directly beside the tyre while the compressor
is pumping. Watch the ty re sidewall. If any
cracks, bumps or simila r damage appear, turn
off the compressor and let the air out by
means of the pressure relief valve. Do not
continue to use the tyre.

233
Wheels and tyres

9.Unless the vehicle is in an enclosed area,
start the engine.
10. Set the compressor switch to the on ( I)
position.
11. Inflate the tyre to a minimum of 1.9 bar
(26 lbf/in²) and a maximum of 3.5 bar
(51 lbf/in²).
•When pumping the sealant through the
tyre valve, the pressure may rise up to 6
bar (87 lbf/in²). The pressure will drop
again after approximately 30 seconds.
12. During the inflation, switch the
compressor off briefly, to check the tyre
pressure using the gauge mounted on the
compressor.
• It should not take longer than seven
minutes to inflate the tyre. If, after seven
minutes, the tyre has not yet reached
minimum pressure, the tyre should not
be used.
13. Once the tyre has been inflated, switch off
the compressor. If desired, the engine may
be turned off after the compressor has
been turned off.
14. Remove the power connector from the
auxiliary power socket.
15. Remove the inflation hose from the tyre
valve, by unscrewing it as quickly as
possible (count er-clockwise).
16. Replace the inflation hose protective cap
and the tyre valve cap.
17. Do not remove the sealant bottle from the
receiver.
18. Ensure that the tyre repair kit (including
the bottle and receiver caps) are placed
securely in the vehicle. You will need to
use the kit to check the tyre pressure after
approximately 3 km (2 miles), so ensure
they are easily accessible. 19.
Immediately drive the vehicle for
approximately 3 km (2 miles), to allow the
sealant to coat the inner surface of the tyre
and form a seal at the puncture.
Checking the tyre pressure after a repair
1.Drive the vehicle for 3 km (2 miles) then
stop in a safe place. Carry out a visual
examination of the tyres condition.
2. Make sure that the sealant container
section is in its original position.
3. Screw the inflation hos e connector firmly
onto the tyre valve.
4. Read the tyre pressure from the gauge.
5. If the pressure of the sealant filled tyre is
above 1.3 bar (19 lb/in²) adjust the
pressure to the correct value. See TYRE
CARE (page 217).
6. Ensure that the compressor switch is in
the off (O ) position and insert the power
cable connector into the auxiliary power
socket.
If the vehicle is in a well ventilated area,
start the engine.
WARNINGS
When driving the vehicle, if you
experience vibr ations, abnormal
steering, or noises, reduce speed
immediately. Drive with extreme caution and
reduced speed, to the first safe place to stop
the vehicle. Visually examine the tyre and
check its pressure. If there are any signs of
damage or deformity to the tyre, or the tyre
pressure is below 1.3 bar (19 lb/in²), do not
continue driving.
Consult a tyre repair centre or your
Dealer/Authorised Repairer, for
advice concerning the replacement of
a tyre after using a tyre repair kit.

Wheels and tyres
234

7.Switch the compressor to on ( I) and inflate
the tyre to the correct pressure.
8. To check the tyre pressure, turn off the
compressor then read the pressure from
the gauge.
9. When the compressor is off, if the tyre
pressure is too high, release the required
amount of pressure using the pressure
relief valve.
10. Once the tyre is inflated to the correct
pressure, switch off the compressor and
remove the power plug from the auxiliary
socket.
•The use of the tyre re pair kit sealant may
lead to error prompts and incorrect
readings of the Tyre Pressure
Monitoring System. Therefore, use the
tyre repair kit pressure gauge to check
and adjust the damaged tyre's inflation
pressure.
11. Unscrew the inflation hose connector from
the tyre valve, replace the tyre valve cap
and the inflation hose connector protective
cap.
12. Ensure that the tyre repair kit is placed
securely in the vehicle.
13. Drive to the nearest tyre repair centre or
Dealer/Authorised Repairer, for a
replacement tyre to be fitted. Ensure that
you make the repair centre aware that the
tyre repair kit has been used before the tyre
is removed.
14. Both the tyre inflation hose, and the sealant
container should be replaced once a new
tyre has been fitted. Only sealant containers which are
completely empty should be
disposed of with normal household
waste. Sealant containe rs which contain some
sealant, and the tyre in flation hose, should be
disposed of by a tyre specialist or your
Dealer/Authorised Repairer, in compliance with
local waste dispos al regulations.
TYRE PRESSURE MONITORING
SYSTEM
Note: Non-approved accessories may interfere
with the system. If this occurs, TYRE
PRESSURE SYSTEM FAULT is displayed in the
message centre.
WARNINGS
The Tyre Pressure Monitoring (TPM)
system is NOT a substitute for
manually checking ty re pressures.
The TPM system only provides a low pressure
warning and does not re-i nflate your tyres.
Tyre pressures should be checked regularly
using an accurate pressure gauge when cold.
Failure to properly maintain your pressures
could increase the risk of tyre failure, with
consequential loss of vehicle control and
personal injury.
The TPM system can NOT register
damage to a tyre. Regularly check the
condition of your tyre s, especially if
the vehicle is driven off-road.
CAUTION
When inflating tyre s, care should be
taken to avoid bend ing or damaging the
TPM system valves. Always ensure correct
alignment of the inflation head to the valve
stem.

Wheels and tyres
236

Tyre pressure warning with speed
If the vehicle is to be driven at speeds in excess
of 160 km/h (100 mph), the tyre pressures
should be increased as stated in this handbook
or on the placard label. Failure to increase the
tyre pressures and driving in excess of
160 km/h (100 mph), will illuminate the yellow
warning telltale and display a text message
TYRE PRESSURES LOW FOR SPEED . In the
event of this warning be ing displayed, vehicle
speed should be reduced
Temporary use spare wheel and tyre
change
If the temporary use spare wheel is fitted the
system will automatically recognise the change
in wheel positions. The n after approximately
ten minutes of driv ing above 25 km/h
(18 mph), a message TYRE NOT MONITORED
will be displayed accompanied by illumination
of the warning telltale and the corresponding
block in the vehicle graphic.
The warning telltale will initially flash and will
subsequently revert to continuous illumination.
Extended use of the temporary use spare wheel
will produce an additional text message TYRE
PRESSURE SYSTEM FAULT .
This TPM system display sequence will be
activated at every ignition cycle until the
temporary use spare wheel is replaced by a
fully operational full size wheel and tyre
assembly.
Always replace the temporary use wheel before
having TPM system faults investigated. The
fault may well be rectified with the fitment of a
fully operational full size running tyre in lieu of
the temporary use spare wheel assembly.
Tyre changing
Always have your tyres serviced or changed by
a qualified engineer.
Care must be taken to avoid contact between
the bead of the tyre and the sensor during
removal and refitting of the tyre, otherwise the
sensor may become damaged and or
inoperable.
Sensors can be removed from the wheel by the
unscrewing of the va lve retention nut.
Replacement sensor
Should the sensor require replacing, it should
be carried out by a Dealer/Authorised Repairer.
A replacement sensor must be fitted to a
running wheel in order to be recognised by the
system. The vehicle needs to be stationary for
15 minutes during the se nsor fitment before
the system is ready to detect the new sensor.
The vehicle must be driven for a minimum of
fifteen minutes after the sensor change, and
then remain stationary for fifteen minutes to
activate full TPM system operation.
If the TPM system warning for any wheel does
not clear, even after ensuring correct inflation
and driving for more than ten minutes above
25 km/h (18 mph), you should seek qualified
assistance as soon as possible.
CAUTION
Valve stem seal, washer, nut, valve core
and cap should be replaced at every tyre
change. Valve stem seal, washer and nut must
be replaced if valve re tention nut is loosened.
Sensor units and nuts must be refitted using
correct torque figures and associated profile.
Damage to the vehicle may result if these
precautions are not taken.