service JAGUAR S TYPE 2005 1.G Technical Guide Update

JAGUARS-TYPE
D.204.400
Chassis
48
D.204.440
VERTICAL FRONT KNUCKLE UPPER CONTROL ARM
D.204.440
D.204.400
Upper Control Arm
The upper control arm is also an aluminium
forging, mounted with two rubber bushes and has
an integral, non-serviceable ball joint.
Vertical Front Knuckle
The vertical front knuckle is an aluminium casting
with integral steering arm, installed between the
upper and lower control arms. The lower ball joint
is serviceable and is a press fit. The knuckle
locates the upper balljoint, riveted disk shield and
brake calliper and wheel bearing/hub. The wheel
bearing is a new type and contains the integral
ABS rotor and sensor. The bearing is not
serviceable and must be replaced as a complete
unit. A service kit is available for the ABS sensor.
Vertical Front Knuckle
Disc Shield
Wheel
Bearing/Hub

JAGUARS-TYPEChassis
53
Driveline
Introduction
The driveline is a standard type with the engine
position at the front and driven rear axle. This will
be the first time that Jaguar has used in-plant
driveline balancing to improve noise, vibration
and handling. The driveline is finely balanced at
the rear driveshaft joint. The centre bearing is
laser aligned during initial factory build.
The alloy rear engine mountings have two
variants, one for automatic transmission and one
for manual transmission. They are both
serviceable items. The V6 auto is the same as the
V8 but rotated in plan by 180 degrees. The rubber
mountings are carry over concept from the
current XJ and XK Series vehicles but are not
D.307.322
DRIVELINE ARRANGEMENTinterchangeable with them. Both automatic
transmission rubber mountings are common but
with a softer unique mount for the manual V6
transmission.
In service if they are replaced, ensure that there
are buffer gaps and that they are approximately
equal. Neither will be contaminated by lubricant
or automatic transmission fluid.
Driveshaft
The S-TYPE has a two-piece welded steel tube
driveshaft with a splined centre slip joint and
locking collar, the whole being aligned with the
body centreline. The driveshaft has rubber flex
couplings and a rubber, body-mounted, centre
bearing. For safety, the front tube is collapsible.

JAGUARS-TYPEChassis
54The centre joint is a conventional hookes joint
with staked lugs and the rubber flex couplings
have spigoted sleeves to the transmission and rear
axle final drive unit (three bolt fixings)
All driveshafts are balanced. If undercoating the
vehicle, protect the driveshaft, universal joints
and the axleshafts to prevent overspray of the
undercoating material.
Driveshaft weight is:
¥ V6 auto 12.7 kg
¥ V8 auto 13.4 kg
¥ V6 manual 14.1 kg
Serviceable parts are the centre bearing, flex
coupling, rubber boot, alignment bearing and
fasteners. Lubrication of the driveshaft
components is unnecessary. The universal joint is
equipped with nylon thrust washers, located at
the base of the bearing cup.
Balancing of the driveshaft is achieved using a
PDU with the new vibration analyser. This gives
details of where the shaft is out of balance and by
how much and where to place the balance nuts.
Final Drive (differential)
The final drive, differential, has a steel case and
rear cover, no drain plug and has a sealed for life
lubricant. Differential weight is 27 kilograms and
oil capacity 1.5 litres of synthetic oil (M2C192A).
The hypoid gearset is mounted in taper roller
bearings. It has a two point differential assembly
retained by bearing straps. The central pinion is
on the body centreline. Pinion and output oil
seals, the companion flange and nut and the
needle roller output bearing are the only
serviceable items.
Final drive ratios are:
3.31:1 (V6 and V8 auto)
2.87:1 (V6 manual)
Differential Mountings
The crossbeam forms the mounting points for the
three differential mounting bushes. All three
bushes are conventional rubber bushes, common
to all S-TYPE vehicles and are serviceable items.
They control the driveline and isolate differential
noise and vibration. Avoid disturbing the subframe
mounts when servicing differential bushes. The
front differential bush is a two-part bush and the
RH and LH rear bushes are handed and colour
coded to differentiate them
Half-shafts
Half-shafts are unequal lengths and are therefore
handed, left and right. Constant velocity joints are
fitted to both ends, the outer is fixed and the
inner is sliding. They are sealed for life and
retained in the differential side gear with a spring
clip.
Weights are approximately
V6 size - 100 8.89kg (LH) 8.76kg (RH)
V8 size - 104 9.43kg (LH) 9.3kg (RH)
Serviceable parts are:
¥ the pinion and output oil seals
¥ companion flange and nut
¥ output bearing (needle roller)
Note: It is possible that the replacement or repair
of gears, bearings or shafts may be introduced at a
later date.
D.307.317
DIFFERENTIAL MOUNTING POINTS
D.307.317
Front Mounting
Rear Mountings

JAGUARS-TYPEChassis
58
Power Assisted Steering
Introduction
The Jaguar S-TYPE has a variable assist rack and
pinion steering gear and variable rack ratio. The
variable steering rack ratio reduces the number of
turns from lock to lock (2.8) to enhance parking
manoeuvrability whilst maintaining the on-centre
steering precision required at high speed. Full
power assistance is provided for parking. Steering
assistance decreases smoothly at a calibrated rate
to raise driver steering efforts as vehicle speed
increases.
Servicing
There are no carry over parts from XK or XJ Series
vehicles.
The rack is mounted to the rear of cross member
Number 2. The PAS pump is belt driven. A PAS
cooler matrix is located within the radiator
package.
Low PAS pump speeds problems are prevented by
increasing engine speed. A power steering
pressure (PSP) switch senses the demand on the
pump at low engine speeds and increases the
speed to a pre-set minimum.
Hose connections to the pump and the steering
gear are quickfit connectors. The quick connect
tube must be pushed into the existing tube nut
port, along the centreline. The assembly is
complete when the tube end bottoms out in the
port with an audible click/snap. Correct assembly
should be verified by pulling the quickfit tube end.
Servicing of the PAS line involves removal of the
quickfit nut. Replacement PAS lines are supplied
complete with quickfit nut and sealing washer. If
the joint is disturbed it is compulsory to replace
the PTFE sealing ring otherwise leaks are
inevitable. Replacement sealing washers may be
installed with the use of Service tool
D90P-3517-A.
Care must be taken when removing the quickfit
nut from the V6 engine pump as the pulley is
PHENOLIC and is susceptible to damage. The V8
pump installation provides a short jumper tube
from the pump to improve accessibility to the
high-pressure hose connection. The PAS pulley
D.211.247
PA S R AC K
D.211.258
POWER STEERING PRESSURE SWITCH

JAGUARS-TYPEChassis
59
D.211.248
FRONT STEERING ARM requires a Service tool to assist removal. Low-
pressure hose connections are made using
Constant Tension (CT) clamps. Pinion hydraulic
connections are orientated with the bottom
connector low pressure with the longer nut, as
current vehicles.
The PAS fluid is for PAS only; it is not to be used
for transmissions. After manual filling, the system
must be bled using a vacuum pump to remove all
the air from the system to prevent system noises.
Fluid level is checked through a sight window on
the reservoir.
Components replaceable are complete pump,
steering rack, reservoir or hose assembly.
A non-serviceable 10-micron filter is located
within the reservoir to maintain fluid cleanliness
throughout the life of the vehicle. It is essential as
with all Jaguars that the system does not become
contaminated. Cap all ports on disassembly to
prevent contamination ingress. As with current
vehicles, the fluid and reservoir must be renewed
if any major component is replaced i.e. Rack,
pump or cooler.
The road wheels should be set straight ahead and
the steering wheel locked (using service tool
F7LC-3F732-BF) when removal and assembly of
the steering gear or intermediate shaft is required.
This is necessary to prevent damage to the air bag
clock spring within the steering upper column
assembly. The intermediate shaft can only be
assembled to its mating components in one
location. Steering wheel alignment can only be
achieved by adjustment at the tie-rods. A
dimensional check of the steering rack position
may be necessary to verify rack centre.
Steering Column
The steering column assembly is completely new
and uses no parts from previous Jaguar
assemblies:
¥ Construction of the upper column assembly is
based on the use of aluminium extrusions and
castings.
¥ A two shaft lower column assembly is used.
¥ The electronically controlled steering lock, the
steering column lock module (SCLM), is a
physically separate component from the
ignition switch which is fascia mounted.
¥ The dynamic stability control (DSC) steering
wheel position sensor is fitted to the upper
column assembly.
Steering Wheel
The steering wheel consists of a magnesium
armature with a central steel insert. The steering
column and wheel insert are splined with a flat so
that the wheel can only be fitted in one position.
Any misalignment of the steering wheel is
corrected by adjusting the tie rods. The splined
fitting also has a locking taper which requires the
use of a 2 legged puller to remove the wheel.
The steering wheel incorporates the the airbag
module, horn mechanism and the optional cruise
control and audio/phone switches.

JAGUARS-TYPEChassis
62
J.211.257
STEERING COLUMN LOCK MODULE
Steering Column Lock (where fitted)
Lock Operation
The steering column lock module (SCLM) and
ignition key switch are separate assemblies and
activation of the lock is remotely controlled by the
instrument pack, GECM and RECM. The column is
unlocked on insertion of the ignition key and is
locked when the key is withdrawn.
The SCLM is mounted on top of the lower casting,
on the upper column assembly, by two shear
bolts. A locking bolt projects down from the SCLM
through a hole in the lower casting to engage into
a splined collar on the steering column. The SCLM
is an integrated non-serviceable assembly, housinga motor and worm drive for the locking bolt and
also an electronic printed circuit board. When
activated, the locking bolt is driven positively in
both the lock (down) and unlock (up) directions
and has a spring to help locate it into the trough
of the splined collar. When disengaging, the
locking bolt is driven upwards until it operates a
microswitch (within the SCLM) which causes the
motor to stop and also signals via the SCP bus that
the steering lock is off. To engage the lock, the
motor is energised for 350ms to lower the bolt.
System Control
The lock motor is powered by a switched 12V line
from the RECM and switched ground line from the
GECM, with both supplies being applied only
during lock operation. Initiation of motor drive
and direction and power supply switching is
controlled by the instrument pack via the SCP bus
when ignition key insertion or withdrawal is
detected. Identification is checked between the
SCLM and the other modules and the system will
not operate if, for example, a module has been
replaced and not re-programmed. System
diagnostics include defective modules and
incorrect module identification and also certain
SCLM faults, ie unconfimed lock or unlock
conditions and failed microswitch.
Steering Column Shrouds
The upper part of the column assembly is
enclosed by two plastic shrouds, upper and lower.
The steering column adjust switch, controlling tilt
and reach for the electrically powered steering
column assembly, is mounted on the side of the
lower shroud.
SCLM

JAGUARS-TYPEElectrical/Electronic
107
Valet Switch (NAS markets only)
The valet switch is located in the glove box and
the owner should lock the glove box with the
black-headed key. The green-headed key should
the be handed to the parking attendant who can
then lock the car after parking, but will be unable
to open the glove box or the luggage
compartment.
JOL.049
VALET SWITCH
JOL.172
GARAGE DOOR OPENER SWITCHESGarage Door Opener (GDO)
(NAS markets only)
The garage door opening electronic module is
fitted in the driverÕs sunvisor. This module can be
programmed to transmit the radio frequencies of
up to three of the ownerÕs current hand-held
transmitters, for the operation of garage doors,
gates, lighting or security systems, and other radio
frequency operated services.
WARNING:
1. This GDO must not be used with
installations that do not have a sensor
that will automatically ÔstopÕ and
ÔreverseÕ a closing garage door if an
object is detected in its path.
2. When programming a channel, the
system that you are programming will
be activated if it is within signal range,
therefore, make sure that people or
objects are clear of the garage doors or
gates being opened or closed.
The procedure for programming the GDO is given
in the OwnerÕs Handbook.
To operate: Simply press the appropriate button
on the sunvisor. The red light on the sunvisor
comes on when the signal is being transmitted.
JOL.172

JAGUARS-TYPEElectrical/Electronic
116
Audio and Communications System
General
The Jaguar sound system is available in two
versions: the Base System and the Premium
System. The audio head unit with integral
amplifier is located in the center stack. The audio
system has a phone interface to access stored
numbers. The antenna module is located on the
vertical panel under the rear parcel shelf
(accessed from the LHS of the trunk), FM and AM
antenna elements are in the rear screen. Four
twin cone 5in x 7in (127mm x 178mm) door
speakers are a modular cassette type for ease of
assembly/disassembly. The assembly consists of a
driverÕs door module (driverÕs door only), speaker,
and wiring and is mounted to the inner door
moulding. A special seal is kept under tension to
avoid water ingress.
JOL.040
1. On/Off button and rotary control
2. Treble, bass, balance and fade selection buttons
3. Cassette tape player button
4. Cassette tape slot
5. Cassette tape eject button
6. CD player button
7. Waveband (AM/FM) selection and Auto-store button
8. Menu function button
9. Seek/tuning control
10. Preset selection buttons (1 to 6)11. Display
12. Program type button
13. Traffic Announcement button (RDS markets only)
14. Phone/Mute button
15. Dolby B button (base system only)
16. Digital signal processing (DSP) button
(Premium system only)
17. Shuffle button (non-RDS markets)
18. Compress button (non-RDS markets)The system is operated by the controls on the
fascia panel and the controls on the LH side of the
multi-function steering wheel (where fitted).
The radio has an alpha-numeric display which
shows information such as station frequency,
program service name, tape & track, CD and track,
phone mode and audio mute. Steering wheel
switch commands however, (when the steering
wheel switches are pressed) are shown on the
Instrument Pack message center.
The radio incorporates communication links with
Jaguar unique features: CD Autochanger, Cellular
Phone, Voice Activation and Navigation system.
Text messages relating to these features appear on
the display.
1
26 5 4 3
109 8 7
11 13 12 1814 16
15
17 AUDIO SYSTEM CONTROL PANEL

JAGUARS-TYPEElectrical/Electronic
123
JOL.136
Quarter-turn Fastener
CD Load Cover
NAVIGATION CONTROL UNIT/CD MAP LOADER controls are incorporated into the Navigation
Head Unit, there is no remote control. Antennas
are integrated into the front and rear bumpers.
Harnesses for the TV are incorporated in all
Japanese vehicles.
Jaguar Assist (North America only)
Assist is an integrated vehicle emergency message
system (VEMS) that uses the Jaguar security
response center for emergency roadside
assistance via the Jaguar in-car telephone
installation. The global positioning system (GPS) is
used to identify the position, direction of travel
and speed of the vehicle. Access to the Assist
feature is through the use of the Navigation
system. The emergency assistance feature allows
rapid access to the emergency services (police,
fire or ambulance) and roadside assistance. Once
assistance has been requested and the vehicle
location confirmed, the appropriate services are
contacted for assistance to be dispatched. In the
unfortunate event of an airbag deployment, the
system will automatically place an emergency call.
Access to the system is gained by pressing the
information button on the Navigation front panel
screen (the ignition must be in position ÔIÕ or ÔIIÕ).
While in use, a sequence of messages is displayed
on the LCD.
Note: If an Assist call is initiated and the operator
cannot establish voice communication, police
assistance will be dispatched to the vehicle.
The system can be used wherever a cellular
phone service is available. The Jaguar phone must
be connected to the vehicle, working correctly
and registered with a cellular network. A roaming
airtime agreement is required so that the system
can be used in all areas.
Diagnostic Light
A diagnostic light is integrated into the
information (ASSIST) button. The diagnostic light
flashes throughout an activation but stays on
continuously when a failure is detected. A
message is given on the display: ÔASSIST
FAILUREÕ. There are four potential failure modes:
1. No VEMS menu is displayed when the
information ASSIST button is pressed
2. No activation is performed when the enter
button is pressed to make a selection3. VEMS is unable to compute the location of
the vehicleÕs current position
4. The Navigation system is unable to display
any VEMS messages or would display the
wrong VEMS messages.
Real Time Traffic Information (RTTI)
In the UK the provider for RTTI is ÔTrafficmasterÕ.
Information is collected from their own unique
network of infra-red road sensors which monitor
the average speed of traffic. This information is
sent by radio data link to TrafficmasterÕs
operational headquarters. After processing and
editing the information, it is transmitted in real
time, in words and graphics to Trafficmaster
control modules installed in vehicles. RTTI will not
be available on early vehicles but could be Dealer
fitted retrospectively.
Other markets will use different traffic congestion
information services which will depend on market
infrastructure and service provider support. Japan
will use the ÔVehicle Information and
Communications SystemÕ (VICS).