2009 JAGUAR XF Head

163
Adaptive cruise control (ACC)

Detection beam issues
Detection issues can occur:
1.When driving on a different line to the
vehicle in front.
2. When a vehicle edges into your lane. The
vehicle will only be detected once it has
moved fully into your lane.
3. There may be issues with the detection of
vehicles in front when going into and
coming out of a bend.
In these cases ACC may brake late or
unexpectedly. The driver should stay alert and
intervene if necessary.
ACC malfunction
If a malfunction occurs during operation of the
system in cruise or follow modes, the ACC
system will switch off a nd cannot be used until
the fault is cleared. The message DRIVER
INTERVENE appears briefly and is then
replaced by the message CRUISE NOT
AVAILABLE . If malfunction of the ACC or any
related system occurs at any other time, the
message CRUISE NOT AVAILABLE will be
displayed. It will not be possible to activate the
ACC system in any mode.
Accumulations of dirt, snow or ice on the
sensor or cover may inhibit ACC operation.
Fitting of a vehicle front protector or metallised
badges may also affect ACC operation.
The ACC system relies on its radar to detect
objects and constantly scans ahead. If the
radar detects no objects ahead in ACC or follow
mode , then the ACC will be deactivated, the
audible alarm sounds and the message
DRIVER INTERVENE displays briefly. The
message ACC SENSOR BLOCKED will then be
displayed.
The same messages may also be displayed
while driving on open roads with few objects
for the radar to detect.
Clearing the obstruction allows the system to
return to normal operation. If the obstruction is
present when ACC is inac tive, e.g. on initial
starting or with the ACC system switched off,
the message ACC SENSOR BLOCKED will be
displayed.
Tyres other than those recommended may
have different sizes. This can affect the correct
operation of the ACC.1
2
3
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Adaptive cruise control (ACC)
164

Adverse weather conditions
During adverse weather conditions such as
heavy rain or snowfall, the sensitivity of radar
blockage detection is incr eased, so that it can
correctly detect any reduced performance
caused by a blocked sensor.
During these conditions, the warning message
ACC SENSOR BLOCKED may be displayed
more frequently, especially in areas where
there are few roadside objects for the radar to
detect.
FORWARD ALERT FUNCTION
Limited detection and warning of objects
ahead, is provided during ACC operation by the
ACC FORWARD ALERT warning. The enhanced
forward alert feature additionally provides
warnings when ACC is not engaged; if an object
is detected close ahead, then the warning tone
and message will be issued. The brakes will not
be applied. The forward alert system does not initiate any
action. The driver must
take appropriate action
when the FORWARD ALERT message is
displayed. However, the system monitors
driver actions (e.g. braking, steering or
indicating) and may not initiate the warning
display if the appropriate action has been taken
early enough.
The Forward alert function may be switched on
or off using the forward alert switch, located
where shown.
When the indicator in the
instrument panel is on, Forward
alert is active.
The sensitivity of the warning may be changed:
• Press the gap decrease button when ACC
is disengaged to displa y and then decrease
the sensitivity of the alert.
• Press the gap increase button to display
and then increase the sensitivity of the
alert.
FORWARD ALERT is
displayed in the
message centre.
WARNING
Do not use in poor visibility,
specifically fog, heavy rain, spray or
snow.
Do not use on icy or slippery roads.
JAG1303

165
Adaptive cruise control (ACC)

ADVANCED EMERGENCY BRAKE
ASSIST
On vehicles fitted with Advanced Emergency
Brake Assist, brake response is improved
during emergency braking when a moving
vehicle is detected close ahead.
Advanced Emergency Brake Assist activates If
the risk of collision increases after the
FORWARD ALERT warning is displayed.
See FORWARD ALERT FUNCTION (page 164).
The brakes are automatica lly applied gently in
preparation for rapid braking (which may be
noticeable). If the brake pedal is then pressed
quickly, then braking is implemented fully,
even if the pressure on the pedal is light.
See HINTS ON DRIVING WITH ABS
(page 144).
Advanced Emergency Brake Assist is available
at speeds above approximately 7 km/h (5 mph)
and will function even if Forward Alert and
Adaptive Cruise Control are switched off. A
fault with the system will be indicated by the
warning FORWARD ALER T UNAVAILABLE
appearing in the mess age centre. Advanced
Emergency Brake Assist will not be available
until the fault is rectified.
WARNING
Advanced Emergency Brake Assist, is
an additional safety system and is not
intended to relieve the driver of the
responsibility for exer cising due care and
attention when driving.
CAUTION
The system may not react to slow
moving vehicles and will not react to
stationary vehicles or vehicles not
travelling in the same direction as your vehicle.
Advanced Emergency Brake Assist can
only improve braking performance if the
driver applies the brakes.
Warnings may not appear if the distance
to the vehicle ahead is very small or if
steering wheel and pedal movements
are large (e.g. to avoid a collision).
Advanced Emergency Brake Assist
utilises the same radar sensor as
Adaptive Cruise Control and Forward
Alert - the same limita tions of performance
apply.
See PRINCIPLE OF OPERATION (page 159).
See USING ACC (page 159).
See FORWARD ALERT FUNCTION
(page 164).

209
Maintenance

WASHER FLUID CHECK
The washer reservoir supplies the windscreen
and headlamp washer jets.
Check and top-up the reservoir level at least
every week.
Fill with Jaguar Windscreen Washer Fluid,
diluted with clean water, as specified in the
instructions on the bottle. Using a
non-approved fluid may adversely affect the
wiper blade rubber, resulting in ineffectual and
noisy wiping.
Operate the washer switches periodically to
check that the nozzles are clear and properly
directed.
Topping up the fluid
1. Clean the filler cap before removing to
prevent dirt from entering the reservoir.
2. Open filler cap.
3. Top-up the reservoir until the fluid is
visible in the filler neck.
4. Close filler cap.
WARNINGS
Some screen washer products are
inflammable, particularly if high or
undiluted concentrations are exposed
to sparking. Do not allow screen washer fluid
to come into contact with naked flames or
sources of ignition.
If the vehicle is operated in
temperatures below 4°C (40°F), use a
washer fluid with frost protection. In
cold weather, failure to use a washer fluid with
frost protection, could result in impaired
vision and increase the risk of a vehicle crash.
CAUTIONS
Do not use an antifreeze or
vinegar/water solution in the washer
reservoir - antifreeze will damage painted
surfaces, while vinegar can damage the
windscreen washer pump.
Body panels may suffer discolouration
as a result of screen washer fluid
spillage. Take care to avoid spillage,
particularly if an undiluted or high
concentration is being us ed. If spillage occurs,
wash the affected area immediately with water.
E95174

211
Maintenance

Capacities
The quoted capacities are approximate and provided as a guide only. All levels must be checked
using the dipstick or le vel marks as applicable.
Item Variant Capacity
Fuel tank Diesel vehicles 68.1 litres (15 gallons)
Petrol vehicles 69.5 litres (15.3 gallons)
Fuel capacity (when the fuel gauge
indicates empty) Diesel vehicles 64
litres (14.1 gallons)
Petrol vehicles 64 litres (14.1 gallons)
Reserve capacity (when the fuel
gauge indicates empty) Diesel vehicles 5.5 litres (1.2 gallons)
Petrol vehicles 5.5 li
tres (1.2 gallons)
Engine oil refill and filter change Diesel vehicles 6.4 litres (11.3 pints)
V6 Petrol vehicles 6.5 litres (11.4 pints)
V8 Petrol vehicles 7.25 litres (12.8 pints)
Engine oil MIN to MAX on dipstick Diesel vehicl es1.0 litres (1.8 pints)
Petrol vehicles 1.0 litres (1.8 pints)
Washer reservoir With headlamp wash 5.5 litres (9.7 pints)
Washer reservoir Without headlamp wash 4.4 litres (7.7 pints)
Cooling system (fill from dry) Diesel vehicles 12.5 litres (22 pints)
V6 Petrol vehicles 9.25 litres (16.3 pints)
V8 Normally As pirated Petrol
vehicles 12.5 litres (22 pints)
V8 Supercharged Petrol vehi cles 12.3 litres (21.6 pints)
Cooling system (service fill) Diesel vehicles 9.7 litres (17.1 pints)
V6 Petrol vehicles 7.42 litres (13.1 pints)
V8 Normally As pirated Petrol
vehicles 7.5 litres (13.2 pints)
V8 Supercharged Petrol vehicles
- both drain points used 8.6 litres (15.1 pints)

227
Wheels and tyres

Wheel changing safety
Before raising the vehicle, or changing a wheel
ensure that you read, and comply with the
following warnings.
WARNINGS
Always find a safe place to stop, off
the highway and away from traffic.
Ensure that the vehicle is on firm level
ground.
Disconnect traile r/caravan from
vehicle.
Switch on the hazard warning lamps.
Ensure that all passengers, and
animals, are out of the vehicle and in
a safe place away from the highway.
Place a warning triangle at a suitable
distance behind th e vehicle, facing
towards oncoming traffic.
Ensure that the front wheels are in the
straight ahead position, and engage
the steering lock.
Apply the parking br ake, and engage
Park (P).
Ensure that the jack is on firm level
ground.
Never place anything between the
jack and the ground, or the jack and
the vehicle.
When one rear wheel is lifted off the
ground the selection P (Park) position
will not prevent the vehicle from
moving and possibly slipping off the jack as
the park brake only operates on the rear
wheels.
Do not start or run the engine while
the vehicle is supported only by a
jack.
The jack is designed for use when
changing a wheel only. Never work
beneath the vehicle with the jack as
the only means of s upport - use vehicle
support stands.
Always chock the wheel diagonally
opposite the wheel to be changed,
using the wheel chock supplied in the
tool kit. Chock the front of a front wheel, or the
rear of a rear wheel.
If jacking the vehicle on a slight slope
is unavoidable, place chocks on the
downhill side of the two opposite
wheels. An additional chock will be
needed.
Take care when lifting the spare
wheel, and removing the punctured
wheel. The wheels are heavy, and can
cause injuries if not handled
correctly.
Remove the spare wheel prior to
jacking the vehicle. To avoid
destabilising the vehicle when raised.
Take care when loosening the wheel
nuts. The wheel brace may slip off if
not properly attached, and the wheel
nuts may give way suddenly. Either
unexpected movement ma y cause an injury.
WARNINGS

Wheels and tyres
228

Wheel changing procedure
1.Ensure that all passengers are in a safe
place, clear of the vehicle.
2. Apply the parking brake and select gear
position P (Park).
3. Ensure that the jack is placed on firm and
level ground.
Observe the instructions printed on the jack.
Use the jack only for lifting the vehicle during
wheel changing and only us e the jack which is
stored in the vehicle.
Before raising the vehi cle slacken but do not
remove the wheel nuts. There are four jacking points on the underside
of the floor. Two indented, triangular indicators
are provided on each sill cover. These indicate
the location for the jack.
The simplest way to correctly locate the jacking
point is to feel along
the sill panel to the
triangular indentation and then fit the jack to
the body, not to the sill panel.
Carefully raise the vehicle by turning the jack
handle. Stop jacking the vehicle when the tyre
just clears the ground. Minimum tyre lift gives
maximum vehicle stability.
Remove the wheel nuts and the wheel.
To remove the centre badge use the plastic
tipped end of the wheel nut wrench handle,
push the centre badge from its housing from
the inside of the wheel.
Push the centre badge into the replacement
wheel. If the temporary use spare wheel is to be
fitted, keep the centre badge safely and fit it to
the repaired full size wheel when it has been
refitted.
Fit the spare wheel and loosely secure with the
wheel nuts.
WARNINGS
Do not attempt to lift the vehicle
unless the jack head is fully engaged
in the jacking point.
Ensure that the park brake is applied.
CAUTION
Ensure before raising the vehicle that
the jack is correctly positioned to avoid
any damage to the vehicle sills or sill panels.
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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.