2009 JAGUAR XF performance mode

171
Driving dynamics

TracDSC
TracDSC is an alternative setting of DSC with
reduced system interventions. With TracDSC
engaged, traction may be somewhat increased,
although stability may be reduced compared to
normal DSC. TracDSC is intended for use only
on dry tarmac, by suitably experienced drivers
and should not be select ed for other surfaces
or by drivers with insufficient skill and training
to operate the vehicle safely with the TracDSC
function engaged.
The less restrictive TracDSC setting may be
preferred, for example, by expert drivers
engaged in high performance driving on dry
Tarmac surfaces such as tracks and circuits.
Switching between DSC and Trac DSC
• Press and hold the DSC switch for less
than 10 seconds.
• The message centre will temporarily
display either Trac DSC or DSC ON.
• The warning indicator in the instrument
panel will illuminate while Trac DSC is
selected.
• The warning indicator will flash when DSC
or Trac DSC is active.
Note: If cruise control is engaged, it will
automatically disengage if stability control
activates.
Switching between DSC OFF and ON
Switching DSC OFF
• Press and hold the DSC switch for more
than 10 seconds.
• The message centre will display DSC OFF
and a short warning chime will sound.
• The warning indicator in the instrument
panel will illuminate.
Switching DSC ON
If DSC is OFF:
• Press and release the DSC switch.
• The DSC system will switch on, the
message centre will temporarily display
DSC ON .
• The warning indicator in the instrument
panel will be extinguished.
Note: Switching the engine off and then on
again, will always revert DSC status to DSC ON,
regardless of which Ja guarDrive Control mode
is selected.
WARNING
Vehicle safety may be reduced by
inappropriate use of TracDSC.
TracDSC should only be used in
suitable conditions.
E95149

197
Maintenance

Engine oil dipsticks (Red/yellow) - V6
Petrol only
Power steering fluid reservoir cap
(Black)
Coolant reservoir cap (Black)ENGINE OIL CHECK - V6 Petrol
engines
The oil consumption of an engine is influenced
by many factors. Unde r high loads an engine
will consume more oil than usual. Diesel
engines consume slightly more oil than petrol
engines.
Above normal oil consumption should be
expected when the engine is new.
Check the oil level weekly , when the engine is
cold and with the vehicle resting on level
ground.
E95160
E95161
E96102
CAUTIONS
If the message ENGINE OIL PRESSURE
LOW is displayed, st op the engine as
soon as it is safe to do so and seek qualified
assistance. Do not start the engine until the
cause has been identified and rectified.
Your vehicle’s warranty may be
invalidated if damage is caused by the
use of improper engine oil. Low quality or
obsolete oils do not pr ovide the protection
required by modern, high performance
engines. Failure to use an oil that meets the
required specification could cause excessive
engine wear, a build up of sludge and deposits
and increased pollution. It could also lead to
engine failure.
Do not use oil additi ves of any type as
engine damage coul d occur. Use only
specified lubricants.

199
Maintenance

ENGINE OIL CHECK - V8 Petrol
engines
Engine oil consumption
A certain amount of oil consumption is normal.
The rate of consumpt ion will depend on the
following:
• The quality and viscosity of the oil.
• Climatic conditions.
• The speed at which th e engine is being
operated.
• Road conditions.
Drivers should expe ct above normal
consumption when th e engine is new.
Checking the oil level
For an accurate oil level reading to be taken, the
following conditions must be met:
•The vehicle needs to be parked on level
ground. •
The oil level should be checked when the
oil is hot. It is therefore recommended that
a reading is taken after a journey.
• The vehicle needs to stand for
approximately 10 minutes after the engine
is switched off, to allow the oil to drain
back into the sump.
Note: The system will not gi ve a reading until
the oil level has stabilised.
Once the above conditions are met, check the
oil level as follows:
1. Switch on the ignition - do not start the
engine.
2. Set the transmission to Park ( P).
3. Press the TRIP butt on on the end of the
left-hand column stalk repeatedly, until the
oil can icon is displa yed at the bottom of
the message centre.
4. The oil level and topping- up advice will be
shown in the message centre. Top-up as
instructed.
CAUTIONS
It is recommended that the oil level is
checked weekly. If any significant or
sudden drop in oil level is noted you should
seek qualified assistance immediately.
Your vehicle’s warranty may be
invalidated if damage is caused by the
use of improper engine oil. Low quality or
obsolete oils do not provide the protection
required by modern, high performance
engines. Failure to use an oil that meets the
required specification could cause excessive
engine wear, a build up of sludge and deposits
and increased pollution. It could also lead to
engine failure.
Do not use oil additi ves of any type as
engine damage could occur. Use only
specified lubricants.

201
Maintenance

1.Unscrew the oil filler cap (arrowed).
2. Add the appropriate quantity of oil (as
indicated by the message centre oil level
display). Wait 5 minutes to let the oil level
stabilise and re-check the level.
Clean up any oil spilled during topping up.
3. Once the correct level is achieved, refit the
filler cap and hand tighten securely.
Note: The approximate quantity of oil required
to raise the level from the minimum level of
safe operation to the ma ximum, is 1.5 litres
(2.6 pints).
ENGINE OIL CHECK - V6 Diesel
engines
Engine oil consumption
A certain amount of oil consumption is normal.
The rate of consumption will depend on the
following:
• The quality and visc osity of the oil.
• Climatic conditions.
• The speed at which the engine is being
operated.
• Road conditions.
Drivers should expe ct above normal
consumption when the engine is new.
JAG1383
CAUTIONS
If the warning ENGINE OIL CRITICALLY
LOW is displayed in the message centre,
stop the engine as soon as it is safe to do so
and seek qualified assistance. Do not start the
engine until the cause ha s been identified and
rectified.
Your vehicle’s warranty may be
invalidated if damage is caused by the
use of improper engine oil. Low quality or
obsolete oils do not pr ovide the protection
required by modern, high performance
engines. Failure to use an oil that meets the
required specification could cause excessive
engine wear, a build up of sludge and deposits
and increased pollution. It could also lead to
engine failure.
Do not use oil additives of any type as
engine damage could occur. Use only
specified lubricants.

223
Wheels and tyres

USING WINTER TYRES
Winter tyres are more suitable during extremes
of low temperatures, snow and ice and will
considerably improve the vehicle’s handling
during these conditions.
Do not exceed 240 km/h (150 mph) when
using Jaguar approved winter tyres.
Winter tyres must be fitted to all four wheels.
Approved winter tyre sizes
Front :
• Dunlop Wintersport M3 - 235/55R17 99H,
245/45R18 96V, 245/45R18 100V,
245/40R19 98V.
• W240 Pirelli Sotto Zero - 245/45R18 100V,
245/40R19 98V, 255/35R20 97V
Rear:
• Dunlop Wintersport M3 - 235/55R17 99H,
245/45R18 96V, 245/45R18 100V,
245/40R19 98V.
• W240 Pirelli Sotto Zero - 245/45R18 100V,
245/40R19 98V, 285/30R20 99V
Winter tyre pressures
USING SNOW CHAINS
Snow chains, of the recommended type, can
only be fitted to rear wheels. They should not
be used on temporary use spare wheels.
You should contact your Dealer/Authorised
Repairer for details and availability of approved
snow chains.
The maximum speed when using snow chains
is 50 km/h (30 mph).
Remove the snow chains immediately the
roads are clear of snow.
Ensure the fitting instructions supplied with the
snow chains are kept in a safe place, for
example, with this literature pack.
Note: When using snow chains, select
JaguarDrive Control Winter mode with DSC
switched on.
CAUTION
Tyres with an all season icon or M+S
have a level of winter performance and
need not be replaced.
Up to 240 km/h (150 mph)
Front 2.0 bar (30 lbf/in², 207 kPa)
Rear 2.3 bar (33 lbf/in², 230 kPa)
CAUTION
It is essential that only snow chains of
the recommended type are fitted, other
snow chains may cause damage to the vehicle.