2009 JAGUAR XF Warning

Starting the engine
132

GENERAL INFORMATION
START/STOP button
The START/STOP button is used to start or
stop the engine, or to turn on the ignition
without starting the engine.
Note: The START/STOP button will only be
operational if a valid Jaguar Smart key is
detected within the vehicle.
Switching on the ignition
To turn on the ignition without starting the
engine, make sure the brake pedal is not
applied and that there is a valid Jaguar Smart
Key in the vehicle, then press and release the
START/STOP button. The warning indicators
illuminate and most electr ical systems will be
operational.
Note: If the brake pedal is pressed when the
START/STOP button is pressed, the engine will
start.
Steering column lock
Your vehicle is fitted with an electronic steering
column lock. The column unlocks when it
detects a Jaguar Smart Key inside the vehicle.
The steering column automatically locks when
the starter switch is turned off and the driver's
door is opened.
If the steering column remains locked, even
with a valid Jaguar Smart Key in the vehicle,
STEERING COLUMN LOCKED is displayed in
the message centre. If this occurs:
1. Press the starter button to return to the
convenience mode.
2. Try again to unlock the steering column
lock, by turning the steering wheel gently
to the left and right.
3. If the malfunction still persists, seek
qualified assistance as soon as possible.
E94135
CAUTION
During vehicle recovery, the Jaguar
Smart Key must remain inside the
vehicle (or be stowed in the starter control unit
in the centre console), so that the steering
column remains unlocked.

133
Starting the engine

KEYLESS STARTING
With the Jaguar Smart Key inside the vehicle
and the brake pedal depressed, press and
release the START/STOP button to start the
engine.
Note: On diesel models, Smart Start in
progress is displayed in the message centre. If
the brake pedal is released, a gear change is
made or if a fault occurs, Smart Start
cancelled is displayed in the message centre
and the start procedure is cancelled.
Starting a petrol engine
With the brake pedal applied and with a valid
Jaguar Smart Key in the vehicle, press and
release the START/STOP button. The engine
will start, the JaguarDrive selector will elevate
out of the centre console and the air vents in
the front fascia will ro tate to the open position.
Starting a diesel engine
With the brake pedal applied and with a valid
Jaguar Smart Key in the vehicle, press and
release the START/STOP button. In ambient
conditions, after 3 seconds, the engine will
start to crank. The JaguarDrive selector will
elevate out of the centre console and the air
vents in the front fascia will rotate to the open
position.
Note: Smart Start in progress is displayed in
the message centre prior to the engine
cranking. If, during the start procedure, the
brake pedal is released, a gear change is made
or if a fault occurs, Smart Start cancelled is
displayed in the message centre and the start
procedure is cancelled.
Cold climates
In very cold conditions, the delay between
pressing the START/STOP button and the
engine cranking, can be up to 12 seconds.
During this delay, keep the brake pedal applied
and do not press the START/STOP button
again, as this will switch off the ignition. Also in
very cold conditions, expect engine cranking
times to increase.
WARNING
Never start the engine or leave it
running, when the vehicle is in an
enclosed space. Exhaust gases are
poisonous and can cause unconsciousness
and death if inhaled.
E94136

Starting the engine
134

Engine block heaters
Engines are more difficult to start when the
ambient temperature is very low. In
geographical areas where temperatures below
-10°C (14°F) are experienced frequently, it is
advisable to fit an engine block heater. The
block heater will have an insulated connector at
the front of the vehicle, which is connected to a
mains supply using a suitable extension cable.
The heater can remain in use overnight if
required. Typically, an e ngine block heater will
use between 400W and 1000W per hour.
For further information consult your Jaguar
Dealer/Authorised Repairer.
If the engine fails to start
When pressing the engine START/STOP button
to start the engine, if the security status
indicator lamp on the top surface of the
instrument panel rema ins flashing, a fault
condition is indicate d. Seek qualified
assistance as soon as possible.
Note: If the Jaguar Smart Key is placed in the
door pocket, it may be outside the range of the
sensors when the door is opened.
Note: If the fuel system inertia switch has
tripped, the ignition circuit will be isolated.
See FUEL CUT-OFF (page 177).
Petrol engines
If the engine persistently fails to start, press the
START/STOP button (without applying the
brake pedal) to return the ignition to
convenience mode. Slowly depress the
accelerator pedal fully, hold it in this position
and press the START/STOP button with the
brake pedal applied, the engine will start to
crank. Release the accelerator pedal when the
engine starts.
If the engine still fails to start, consult your
Dealer/Authorised Repairer.
Diesel engines
If the engine persistently fails to start, press
and hold the START/STOP button (with the
brake pedal applied). Keep the START/STOP
button and the brake pedal pressed until the
engine starts, then release.
If the engine still fails to start, consult your
Dealer/Authorised Repairer.
SWITCHING OFF THE ENGINE
With the gear selector in position P, press the
engine START/STOP button. The engine will
stop and the ignition syst em will return to
convenience mode. The audio, telephone and
touch-screen systems will revert to stand-by
mode and the JaguarDrive selector will retract
into the centre console. Pressing the
START/STOP button ag ain (without pressing
the brake pedal) will activate the systems.
CAUTION
The fitting of an engine block heater
does not eliminate the need for
antifreeze.
WARNING
Never switch off the engine when the
vehicle is in motion.

135
Starting the engine

DIESEL PARTICULATE FILTER (DPF)
The Diesel Particulate Filter (DPF) forms part of
the emissions reduction system fitted to your
vehicle. The DPF will remove a high proportion
of the harmful car bon microspheres (soot)
before they leave the exhaust. It achieves this
by filtering out the particles, which are then
stored until they are burnt away and the filter is
emptied.
Regeneration
Unlike a normal filter which requires periodic
replacement, the DPF has been designed to
regenerate, or clean itself, to maintain
operating efficiency. Th is regeneration process
takes place automatically in most cases.
However, some unfavourable driving
conditions may mean th at the regeneration
process must be initiate d deliberately by the
driver.
Warning indicators and messages
If regeneration cannot be achieved
automatically by the system, due to short
journeys for example, the driver will be notified
via a warning indicator or message.
DPF FULL
If this message appears in the message centre
(with a red backlight), the vehicle should be
taken to your Dealer/Authorised Repairer as
soon as possible.
DPF FULL SEE HANDBOOK
If this message appears in the message centre
(with an amber backlight), the driver should
carry out the DPF regene ration procedure that
follows, as soon as possible.
CAUTION
The regeneration procedure produces
high temperatures in the DPF. Heat can
be felt radiating from beneath the vehicle,
which is normal and not a cause for concern.
However, the vehicle should not be parked
over combustible material, particularly during
dry weather. The heat generated could be
sufficient to start a fire when in close proximity
to combustible material such as long dry
grass, paper etc.
CAUTION
Failure to take the appropriate action
when a warning message appears, may
result in damage to the engine and DPF
system, increased vehicle emissions and
costly repairs.

Starting the engine
136

Regeneration procedure
If the warning DPF FULL SEE HANDBOOK
appears in the message centre, carry out the
following procedure as soon as possible.
Note: At all times during this procedure you
should observe all releva nt speed limits, laws
and regulations. Always ta ke account of traffic
and weather conditions and drive with
consideration for other road users.
1. Drive the vehicle until the engine reaches
normal operating temp erature. The engine
should not be left idli ng to achieve working
temperature.
2. Drive the vehicle for a further twenty
minutes, keeping the vehicle at a steady
speed between 75 km/h (45 mph) and
120 km/h (75 mph).
Keeping a constant speed enables the DPF
to regenerate more efficiently. It is
therefore recommended that Cruise
control is used to achieve this, if possible.
3. If regeneration is su ccessful, the warning
message will extinguish. If the message
remains, repeat the process.
If the warning message fa ils to extinguish after
60 minutes of driving, contact your Dealer/
Authorised Repairer for assistance.

143
Transmission

Limp-home mode
Note: The driver should be aware that the
vehicle’s performance will be reduced and
must take this into account when driving. Also
the use of the Jaguar Sequential Shift paddles
will be disabled. In this event, seek qualified
assistance as soon as possible.
In the unlikely event of an electrical or
mechanical failure, tran smission operation will
be limited. The vehicle gear selector ranges P,
R , N , D and S may still be used to enable the
vehicle to be driven to a safe area.
Some faults will cause the selector to be locked
in position until the igniti on is switched off. If
the selected range flashes, it signifies that the
driver request cannot be engaged. Re-select N
and repeat the attempt.
If the transmission is still unable to select the
requested gear, contact your Dealer/
Authorised Repairer.
Message centre display
The message centre will confirm the
JaguarDrive selector pos ition (selected gear). Selector position is sh
own highlighted at the
top of the message cent re and confirmed by
the dot on the circular representation of the
selector.
If manual mode is se lected, the numbers 1 to 6
appear at the top of the display, with the
currently selected gear highlighted.
Note: With the transmission set to permanent
manual mode and Dynamic mode selected,
when the rev limit is re ached, the gear position
indicator in the message centre will glow
amber, to indicate that the next gear should be
selected.
The message centre may also display the
following messages with associated warning
indicators:
ENGINE SYSTEMS FAULT (Red)
RESTRICTED PERFORMANCE (Red or Amber)
GEARBOX FAULT (Amber)
If any of these messages are displayed it is
likely that loss of power or driveability will be
experienced. Seek qualified assistance as soon
as possible.
A
km
l/100km
JAG1629

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.

145
Brakes

During emergency braking conditions ABS
constantly monitors the speed of each wheel.
ABS varies the brake pressure to individual
wheels, according to the grip available. The
constant alteration of brake pressure can be
felt as a pulsing sensation through the brake
pedal. This is not a caus e for concern, as it is
designed to demonstrate to the driver that ABS
is operating.
ABS braking techniques
For optimum ABS performance, these
instructions on braking techniques during ABS
operation should be followed:
• Do not release the brake pressure when
the pulsating effect is felt. Maintain a
constant pressure until the manoeuvre is
completed.
• To familiarise y ourself with the feel of the
brake pedal during ABS braking, practise
an emergency stop pr ocedure, always
making sure it is safe to do so. With the
seat belts fitted to all occupants, drive the
vehicle at 32 km/h (20 mph) and brake
sharply.
• ABS enables the driver to steer around
obstacles during em ergency braking.
However, the consequences of turning
sharply at high speed cannot be overcome
by the ABS.
• Do not attempt to pump the brakes to
avoid skidding, as this can interfere with
ABS operation. The ABS will not allow the
wheels to skid under normal road
conditions.
• The ABS will tend to keep the vehicle
straight during braki ng. Because braking
distances may increase under certain road
conditions, it is nece ssary to plan and
make turning manoeuvres as early as
possible.
Electronic Brakeforce Distribution (EBD)
EBD balances the distribution of braking forces
between the wheels on the front and rear axles,
to maintain maximum braking under all vehicle
loading conditions.
For example; Under light loads, EBD applies
less braking effort to the rear wheels, to
maintain stability. Conv ersely, it allows full
braking effort to the rear wheels when the
vehicle is towing or is heavily laden.
A fault with the EBD system is
indicated by illumination of the red
brake warning indicator and the
message EBD FAULT is displayed in the
message centre. Gently stop the vehicle, as
soon as safety permit s, and seek qualified
assistance.