Jaguar XK. Manual — part 43

175

Driving hints

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Driving hints

BREAKING IN

Apart from a few precautionary
recommendations, there are no strict
running-in procedures for this vehicle.

By observing the following advisory
precautions you will ensure maximum
engine, transmission and brake life for
your vehicle:

Engine

• Allow the engine to reach operating

temperature before operating at
engine speeds over 3 500 rev/min.

• Vary the speed frequently.
• From 1 500 kilometres (940 miles)

onwards, gradually increase
performance of the vehicle up to the
permitted maximum speed.

Engine oil consumption

A certain amount of oil consumption is
normal. The rate of consumption will
depend on the following:
• The quality and viscosity of the oil.
• Climatic conditions.
• The speed at which the engine is

being operated.

• Road conditions.

Drivers should expect above normal
consumption when the engine is new,
and after running-in if high speeds are
sustained.

Brakes

To ensure that brake pads reach their
optimum wear and performance
condition, usually within 480 kilometres
(300 miles), observe the following points
are recommended.
• Where possible, avoid heavy braking

as this can result in damage to the
brake pads and discs.

• Avoid prolonged use of the brakes,

for example, when descending
severe gradients.

• Frequent light application of the

brakes is desirable. This helps to fully
bed-in the brake pads.

Final drive unit

During the first 1 500 kilometers (940
miles):
• Avoid full throttle applications and do

not exceed 190 km/h (120 mph).
Observe the national speed limits in
the country in which you are
travelling.

• Do not participate in motor racing

events, test track days, sports driving
schools or similar for the first 8 000
kilometers (4 975 miles).

ECONOMICAL DRIVING

There are two main factors which
influence fuel economy, the way the
vehicle is driven and maintenance.

Driving tips for economy

• Avoid unnecessary journeys,

especially short stop-start trips.

• Accelerate smoothly and gently from

a stand still.

Driving hints

176

L

• Allow time to brake gently and

smoothly.

• Be aware of traffic and road

conditions ahead, and take action in
time to avoid hard braking or
acceleration.

• When stationary apply the park

brake, and select neutral.

• Turn off the air conditioning when not

needed.

Maintenance and fuel economy

Regular servicing by a Jaguar Dealer,
along with regular checks by the driver
are essential for vehicle longevity and fuel
economy.

The condition of the engine (oils, filters,
spark plugs, settings etc.) tire pressures,
and wheel alignment, will all have a
bearing on fuel economy. For this reason
it is essential that the vehicle is checked
regularly by the driver, and serviced by an
approved Jaguar Dealer at the correct
intervals.

Note: If you are in any doubt about the
maintenance requirements, intervals, or
checks required, contact your Jaguar
Dealer for advice.

177

Cruise control

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Cruise control

PRINCIPLE OF OPERATION

Cruise control enables the driver to
maintain a constant road speed without
using the accelerator pedal. This is
particularly useful for motorway cruising,
or for any journey where a constant
speed can be maintained for a lengthy
period.

The cruise (speed) control system can be
used by the driver to maintain a selected
vehicle speed above 30 km/h (18 mph).

Adjustment controls on the steering
wheel allow the driver manual control of
the system. Brake operations also
influence the cruise control system.

1. The speed adjustment control thumb
wheel is used to engage cruise control
initially by rolling it upwards. It is also
used to increase (+) or decrease (-) the
set speed until the desired speed is
obtained.

2.CANCEL - Cancels cruise control but
retains the set speed in memory.

3. RESUME - Resumes the cruise control
set speed after it has been cancelled.

USING CRUISE CONTROL

Setting vehicle speed

When you are travelling at the speed you
require, which must be above 30 km/h
(18 mph), roll the speed adjustment
control 1 upwards or downwards to
increase or decrease speed.

Cruise control will engage and maintain
the set speed and you can remove your
foot from the accelerator pedal.

Note: Cruise control will automatically
disengage when the brake pedal is
pressed or when the vehicle speed falls
below 30 km/h (18 mph).

Changing the speed

There are two ways to change the set
speed:
• Accelerate or decelerate to the

desired speed then roll the speed
adjustment control upwards (+).

• Increase or decrease the speed by

rolling the speed adjustment control
upwards (+) or downwards (-) until the
desired speed is obtained.

1

2

3

E91491

WARNING

Only use cruise control when
conditions are favourable, for
example, straight, dry, open roads

with light traffic.

E91492

Cruise control

178

L

Note: The set speed can be increased or
decreased in steps of 2 km/h (1 mph) by
rolling the speed adjustment control
upwards (+) or downwards(-) briefly until
the desired speed is obtained.

Resuming the speed

If the vehicle is accelerated above the set
speed, then the set speed will be
resumed when the accelerator pedal is
released.

If CANCEL is pressed, or the brake pedal
is pressed, the cruise control will
disengage but the set speed memory will
be retained. Press RESUME and the
vehicle will return to the set speed.

Note: Cruise control will not resume at
speeds below 30 km/h (18 mph).

RESUME will not operate if the ignition
has been turned OFF.

Cruise control will switch OFF and clear
the memory when:
• The ignition system is switched OFF.
• A fault occurs. The cruise control

system will switch OFF and cannot be
used until the fault is cleared.

Automatic switch off

Cruise control will switch off but the set
speed will remain in the memory when:
• The CANCEL button is pressed.
• The brake pedal is pressed.

• Speed falls below 30 km/h (18 mph).
• Neutral, Park or Reverse gear

positions are selected.

• Dynamic Stability Control is

operating.

• The difference between the actual

and set speed is too great.

• When the vehicle reaches a maximum

speed of 192 km/h (120 mph).

• The accelerator pedal is used to

accelerate beyond the set speed for
too long a period.

CAUTIONS

RESUME should only be used if the
driver is aware of the set speed and
intends to return to it.

It is not recommended to resume
set speed when a low gear is
selected as excessive engine

speeds will occur.