2009 JAGUAR XF engine overheat

Brakes
144

PRINCIPLE OF OPERATION
Brake pads
Brake pads require a period of bedding in when
new. Drive with extra caution for the first
500 km (300 miles) to avoid the need for heavy
braking.
Brake pad wear warning
When the brake pads are wearing low, the
warning message BRAKE PADS LOW is
displayed in the message centre. Arrange for
your vehicle to be se en by your Dealer/
Authorised Repairer at the earliest opportunity.
Wet conditions
Driving through heavy ra in or water can have
an adverse effect on braking efficiency. Under
such circumstances, it is recommended that
you lightly a pply the brakes intermittently to
dry the brakes.
ABS warning indicator
If this amber warning indicator
illuminates while driving and/or
ABS FAULT is displayed in the
message centre, drive with extra caution, avoid
heavy braking where possible, and seek
qualified assistance as soon as possible.
If this red warning indicator
illuminates while driving and/or the
message LOW BRAKE FLUID is
displayed in the message centre, check the
brake fluid level at the earliest opportunity and
top-up as required. See BRAKE FLUID CHECK
(page 206).
HINTS ON DRIVING WITH ABS
ABS (Anti-Lock Braking System) allows
maximum brake pressure, and thus maximum
braking efficiency, to be applied, and prevents
the road wheels locking. This allows the driver
to retain steering control during heavy braking
under most road conditions.
ABS optimises tyre to road adhesion under
maximum braking conditions, though it cannot
provide increased cornering ability.
WARNINGS
Do not rest your foot on the brake
pedal whilst the vehicle is in motion.
This may cause a light application of
the brakes, which can result in overheating,
reduced brake performance, and excessive
brake wear.
Never allow the vehicle to coast
(freewheel) with the engine turned
off. The engine must be running to
provide full braking assistance. The brakes will
still function with the e ngine off, but far more
pressure will be required to operate them.
If the red brake warning indicator
illuminates, safely bring the vehicle to
a stop, as quickly as possible. Seek
qualified assistance before proceeding.
Never place non-approved floor
matting or any ot her obstructions
under the brake pedal. This restricts
pedal travel and braking efficiency.
WARNINGS
ABS cannot overcome the physical
limitations of braking distance. Nor
can it overcome the lack of grip on a
road surface (e.g. aquaplaning on water).
Braking distance is increased on a
slippery surface. This applies to all
vehicles, even those fitted with ABS.
The driver should not be tempted to
take risks when driving, in the hope
that ABS will correct errors of
judgement. In all cases it remains the driver's
responsibility to driv e with due care and
attention, payi ng particular attention to the
effects of speed, weather, road conditions etc.

Towing
184

Diesel engine vehicles
The diesel engine management system
incorporates sensors to determine optimum
performance. It is also designed to protect the
engine when arduous conditions are
encountered during towing. When ambient
temperature exceeds 40°C (104°F), the engine
coolant temperature may increase above
normal operating level. If this occurs, the
management system will initiate a series of
actions to restore norma l operating conditions.
The actions may include:
• A message centre message.
• Engine performance reduction.
• Air conditioning syst em cycling. The
system temperature output will fluctuate
between hot and cold, in order to dissipate
engine heat. If engine overheat persists,
the air conditioning will move to
continuous heat output.
It is advisable to bring the vehicle and trailer to
a convenient stop and allow the engine to idle
until normal temperature is restored. Do not
turn off the engine.
Trailer electrical connection
Note: The rear parking sensors are
automatically disabled when the trailer
electrical conne ction is made using Jaguar
approved towing equipment.
The vehicle's electrical system has been
designed to support all towing requirements,
and comply with legal requirements for the
specific territory in which the vehicle is first
sold.
LEVELLING
To maintain vehicle stabilit y, it is essential that
the trailer is loaded so that it remains parallel to
the ground. This is particularly important when
towing twin axled trailers.
CAUTION
Only connect appr oved electrical
circuits, which are in good condition to
the trailer socket. Connecting incorrect, or
faulty circuits may seriously damage the
vehicle's electrical circuits.
E95506

Maintenance
204

ENGINE COOLANT CHECK
Checking the coolant level
The coolant level in the expansion tank should
be checked at least weekly (more frequently in
high mileage or severe operating conditions).
Always check the level when the system is
cold.
Ensure the coolant level is maintained between
the level indicator mark s located on the inside
of the expansion tank filler neck.
If the level has fallen appreciably, suspect
leakage or overheatin g and arrange for the
vehicle to be examined by a qualified
technician.
Diesel and V6 petrol engines V8 petrol engines
If the message
LOW COOLANT LEVEL is
displayed in the message centre, stop the
vehicle as soon as safe ty permits and top-up
the coolant reservoir with the recommended
antifreeze/water mix.
If the message centre displays the message
ENGINE OVERHEATING, pull off the
carriageway and allow the engine to idle for five
minutes and then switch off the ignition for ten
minutes. Switch on the engine and, provided
that the warning does not occur, continue your
journey, avoiding hars h acceleration. Seek
qualified assistance as soon as possible.
CAUTIONS
Running the engine without coolant will
cause serious engine damage.
If persistent coolant loss is noticed,
seek qualified assistance immediately.
E95163
E96105

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.