2009 JAGUAR XF inflation pressure

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.

Wheels and tyres
238

TYRE GLOSSARY
lbf/in² or psi
Pounds per square inch, an imperial unit of
measure for pressure.
kPa
Kilo Pascal, a metric unit of measure for
pressure.
Cold tyre pressure
The air pressure in a tyre which has been
standing in excess of th ree hours, or driven for
less than 1.6 km (1 mile).
Maximum inflation pressure
The maximum pressure to which the tyre
should be inflated. This pressure is given on
the tyre side wall in lbf/in² (psi) and kPa.
Note: This pressure is the maximum allowed
by the tyre manufacturer. It is not the pressure
recommended for use.
Kerb weight
The weight of a standa rd vehicle, including a
full tank of fuel, any optional equipment fitted,
and with the correct coolant and oil levels.
Gross vehicle weight
The maximum permissible weight of a vehicle
with driver, passen gers, load, luggage,
equipment, and towbar load.
Accessory weight
The combined weight (in excess of those items
replaced) of items available as factory installed
equipment.
Production options weight
The combined weight of options installed
which weigh in excess of 1.4 kg (3 lb) more
than the standard items that they replaced, and
are not already considered in kerb or accessory
weights. Items such as heavy duty brakes, high
capacity battery, special trim etc.
Vehicle capacity weight
The number of seats multiplied by 68 kg
(150 lb) plus the rated amount of load/luggage.
Maximum loaded vehicle weight
The sum of kerb wei ght, accessory weight,
vehicle capacity weig ht, plus any production
option weights.
Rim
The metal support for a ty re, or tyre and tube,
upon which the tyre beads are seated.
Bead
The inner edge of a tyre th at is shaped to fit to
the rim and form an air tight seal. The bead is
constructed of steel wires which are wrapped,
or reinforced, by the ply cords.