wheel 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
49
Rear Suspension
The rear suspension is a double wishbone
arrangement with aluminium control arms. The
rear crossbeam is steel fabricated and isolated to
the body with four bushes. The crossbeam locates
the upper and lower control arms and the anti-
roll bar.
Control arms are aluminium castings and heavily
inclined in plan view. The lower control arm
locates the damper and anti-roll bar drop link.
The damper fixing is tapped into the aluminium
casting.
The upper control arm has one cross axis bush
and one rubber bush. It contains an integral
balljoint.
The rear knuckle is an aluminium casting and has
a press fit cartridge bearing.
The independent rear suspension upper and
lower front bushes are conventional rubber
bonded bushes. The upper and lower rear bushes
contain no rubber and are essentially pressed in
ÔroseÕ bearings for superior suspension geometry
control. These are common components between
all vehicle variants and are a similar concept to
D.204.370
D.204.441
REAR SUSPENSION
D.204.370
REAR KNUCKLE
D.204.441
Rear Knuckle
Disc Shield
Wheel
Bearing/Hub

JAGUARS-TYPEChassis
50
D.204.399
FRONT SPRING AND DAMPER
D.204.399
Wheel Alignment
Camber caster and toe are adjustable on the front
suspension only. Toe is the only adjustment on the
rear suspension. Camber and caster are adjusted
by means of eccentric cams on the lower control
arm mounting bolts. The front toe is adjusted by
use of the front tie rod. The rear toe is adjusted by
the use of toe link assemblies connecting the
knuckles to the rear sub-frame.
Anti-roll Bars
There are two types of front anti-roll bars, one for
all V6 and base V8 engined vehicles and one for
V8 sport. There are two types of rear anti-roll
bars, one for all V6 and base V8 engined vehicles
and one for V8 sport.
All anti-roll bars are similar to current saloon
except that the front bushes have moulded insert
for tuning.
Springs and Dampers
There are numerous variants to suit both
ÔstandardÕ and ÔsportÕ derivatives of the V6 and V8
engined vehicles. Both front and rear springs and
dampers are similar to current sports vehicles.
With a strut type assembly, integrated top mount
and two-position lower spring pan. The front and
rear co-axial strut and spring assemblies are
installed between the lower control arms and the
vehicle body.
Sports dampers are CATS only, as XK series.
The CATS suspension is similar to the system
introduced on the XK8. It is a two-stage adaptive
damping ride control. The control module is
located in the rear left-hand corner of the spare
wheel well. Three accelerometers are fitted. The
front vertical and lateral accelerometers are
mounted as an assembly to the vapour
management valve bracket. The lateral
D.204.401
the A-frame bush on current sports and saloon
vehicles. The bushes are not bonded in place but
require a special lubricant when assembling. Care
must be taken to ensure that the replacement
bushes are pushed fully home, the angular
orientation of the bushes is important and it is
essential to mark the position of the subframe
before removing from the vehicle or else driveline
alignment will be lost.
REAR SPRING AND DAMPER
D.204.401

JAGUARS-TYPEChassis
51 accelerometer is used for Dynamic Stability
control (yaw control). The rear vertical
accelerometer is fixed to the rear electronic
control module (RECM) bracket on the rear right-
hand side of the luggage compartment between
the rear wheel arch and the rear lamp pack.
Suspension Alignment
A special tool has been designed to enable correct
alignment of the suspension to the body.
Connected to a personal computer, a transducer
with a wire measuring device is fitted to a plate
attached to the Number 2 cross member.
Alignment pins are fitted to the body front and
rear to the left-hand side chassis rail and to the
rear suspension beam. Measurements are taken
from one point on the Number 2 beam. Then the
transducer is transferred to the other point on the
beam and a second set of measurements taken.
The PC then calculates if there is any
misalignment and by how much, and displays the
information on the screen. The beam(s) are then
adjusted to bring the alignment back within limits
and a further series of measurements are taken.
This process is repeated until the alignment is
correct and the beams are then tightened. A
print-out of the measurements is to be attached to
the job card as a permanent record of alignment.
Note that camber, caster and toe may be required
if any of the beams have been adjusted.

JAGUARS-TYPE
Wheels and Tyres
Chassis
52
Wheels
All wheels are alloy except for the space saver
wheel which is steel. The space saver wheel is not
available for USA, Canada or Mexico.
There are three wheel styles:
¥ 7 x 16 Classic
¥ 7.5 x 16 Dynamic
¥ 7.5 x 17 Sport (option)
Each wheel has five exposed wheel nuts which are
smaller than current cars at 19mm A/F
Locking wheel nut policy is the same as current
sedan vehicles.
Ty r e s
Two sizes - three types:
¥ 225/55R16
All season (NAS markets)
Summer (European/Rest of World)
Winter (accessory)
¥ 235/50R17
Summer (European/Rest of World)
Winter (accessory)
Tyres for the European and Rest of World markets
Summer/Winter, are Pirelli.
The all season tyres are Bridgestone and for the
NAS markets only.
Tyre pressures are:
¥ 26/28 psi comfort
¥ 32/34 high speed or fully laden.
D.501.1477
S-TYPE WHEELS
D.501.1477,1478 & 1479
Classic
Sport
Dynamic
D.501.1478
D.501.1479

JAGUARS-TYPEChassis
56
D.206.177
current vehicles and the 12 valve unit has a 47-
way connector with lever cam. DSC calculates the
real vehicle motion (forward and gearing) and
compares it to the direction initially chosen by the
driver. A steering rate sensor is located on the
steering column and is used to calculate steering
angle. A yaw rate sensor and lateral accelerometer
are located on a bracket behind the hand brake
lever and are used to calculate the vehicle under
or over steer and any side slip.
As soon as DSC recognises that the driver is not
reacting sufficiently to compensate a deviation,
DSC intervenes by applying brake force to each of
the four wheels individually to control yaw
Front Wheel Sensor
The front wheel active ABS speed sensors are
incorporated into the wheel bearings, connected
via a flying lead routed along the brake hose.
Rear Wheel Sensor
The rear sensors are mounted on the hub carrier
and connected by a flying lead routed along the
control arm. None of the sensors are adjustable.
Wheel speed sensors are new active sensors,
which are more sensitive at lower speeds that the
current saloon and sports wheel speed sensors.
Front and Rear Callipers
Front callipers are twin piston aluminium
construction. The ventilated disc sizes are 300 mm
x 32 mm. The rear brakes have cast iron callipers.
This is because of the hand brake operation using
the rear callipers. The ventilated disc sizes are 288
mm x 20 mm. Each rear calliper has a ball and
ramp park brake mechanism, operating on the
main calliper pads.
D.206.178
D.206.177
FRONT WHEEL SENSOR
REAR WHEEL SENSOR
D.206.178

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
60
D.211.255
ELECTRICALLY ADJUSTABLE STEERING COLUMN
Adjustable Column Assembly
The electrically powered upper steering column
assembly provides adjustment for 16û of steering
wheel tilt and 50mm of reach (telescoping
movement) and also features automatic wheel tilt
on entry and exit. A combined joystick and on/off
switch on the side of the column shroud controls
the the tilt and reach movements (see page 106).
Where fitted, the two position memory system
stores settings for steering wheel tilt and reach
together with seat and mirror positions.
The upper column assembly comprises the
following :
¥ The fixed sub-assembly forms a supporting
outer enclosure for the column and consists
of two aluminium extrusions and a steel
stiffening plate bolted together with the lower
extrusion bolted to a lower casting. The
steering column runs in a bearing in the
lower casting which also carries the tilt and
reach drive motors. The complete column
assembly is fixed to the car cross beam via
four bolts to the lower extrusion.¥ The moving section consists of an aluminium
inner housing running on top and bottom ball
bearings within the fixed enclosure and
supporting the tilt head casting. The
telescoping upper section of the steering
column passes through this inner housing and
connects to the steering wheel shaft via a
universal joint located in the tilt head casting.
¥ The tilt and reach motors have integral
gearboxes which directly drive screw
actuators via flexible shafts.
¥ The tilt and reach position measuring
potentiometers, for the driver memorised
positions, are combined in a single
component with linear sliders which are
directly driven by the moving actuators.
¥ Connection to the lower steering column
assembly is via a rag joint (rubber Ôdo-nutÕ
type coupling).
¥ The dynamic stability control (DSC) sensor
ring is located on the column with the sensor
unit fixed to the drive motors (see section on
DSC).
Tilt Motor
Reach MotorRag Joint
SCLM
DSC Sensor Ring
DSC Sensor
Tilt Coupling
Tilt Pivot

JAGUARS-TYPEClimate Control
67 Pipework
The suction hose and liquid line are a one-piece
assembly. A single screw connects them to the air
conditioning unit manifold at the bulkhead. A
further screw fixing and push-in clip secures them
at the side of the engine bay. The liquid line fixed
to the cooling module then joins with a block
fitting and the suction hose connects with a quick
connect fitting and routes across the underneath
of the cooling module to the compressor. The
compressor suction and discharge hoses are also a
one piece assembly.
A pressure transducer is fitted to the discharge
hose as it connects to the rear of the condenser.
The high side charge port is situated on the
manifold connecting to the receiver drier whilst
the low side is adjacent to the compressor behind
the LH front wheel.
The compressor is a 9Occ scroll, which is variable
from 100% to 30%. Compressor is standard
specification to all vehicles although package
makes them unique to V6 and V8.
Air Distribution
Air distribution is as follows:
¥ Defrost duct integral with the fascia.
¥ Face vents, plenum, manifold, centre face
duct, side face duct, side window demist duct
are all sub-assembled into the fascia.
¥ Driver and front seat passenger foot ducts are
installed in the fascia after it has been fitted
to the vehicle.
¥ Rear foot ducts are fitted to the underframe.
¥ Rear face duct fitted to transmission tunnel.
¥ Rear face vent fitted to console.
¥ Extractor boxes fitted in rear quarter panels.
All flaps are electric servo controlled and
comprise:
¥ Fresh/recirculation - heater/evaporator unit.
¥ Cold air bypass - heater/evaporator unit.
¥ Foot flap - mounted on plenum.
¥ Defrost flap - mounted on plenum.
¥ Face flap - mounted on plenum.
Sensors, for operation of the system, are:
¥ Ambient temperature sensor - located behind
the lower front grille.
¥ Solar sensor - fitted to the top centre of the
fascia at the defrost grille
¥ In-car sensor - aspirated from the plenum
venturi sensor mounted inboard of the
steering column.¥ Two heater air outlet sensors
¥ One evaporator air outlet sensor
Servicing
Routine servicing consists of particle filter
replacement.
Replaceable items on the climate control system
are:
¥ Servo complete with linkages
¥ Sensors
¥ Evaporator and seals
¥ Heater core and seals
¥ Blower motor
¥ Impeller/blower motor wheel
¥ Hoses
¥ Registers/vents
¥ Ducts, except the defrost
¥ Defrost and side window demist grilles
¥ Control unit
¥ Compressor
¥ Water pump
¥ Water valve
¥ Receiver/drier
¥ Condenser
There are no panel diagnostics but PDU facility is
available with extensive capability, similar to
current XJ and XK Series.
System refrigerant is R134a. Vehicle charge weight
is 800 gms and charging is through the high side
charge port only.
Oil type is WSH-MIC231-B and refill quantity is
180 cc -220 cc.
Special tools are hose clamp pliers and air-
conditioning hoses spring lock de-coupler.
General information
Ensure that the grille at the base of the windshield
is kept clear of leaves, snow or other obstructions.
A solar sensor is mounted on top of the fascia, in
the centre of the defrost grille, and this should not
be covered.
The air conditioning system should be run briefly
at least once each week with a cold setting to
prevent the seals from drying out with subsequent
refrigerant leaks.
When the engine and vehicle interior are cold the
fan speed may be low until the engine has warmed
up, this avoids excessively cold air being blown
into the cabin.

JAGUARS-TYPEElectrical/Electronic
74The SCP communication network will remain
operational even with severing of one of the bus
wires. Communications will also continue if one
of the bus wires is shorted to ground or battery
positive voltage (B+), or if some , but not all,
termination resistors are lost.
Unlike the SCP communication network, the
ISO 9141 communication network will not
function if the wire is shorted to ground or battery
positive voltage (B+). Also, if one of the modules
on the ISO 9141 network loses power or shorts
internally, communication to that module will fail.
Control Modules
The vehicle control module functions are
described briefly below (for further information
refer to the relevant sections throughout the
Guide).
Anti Lock Brake/Traction Control and
Dynamic Stability Control, Control Modules
The anti-lock brake control module is connected
to the SCP communication network. The module
comes in two forms. The first type is the standard
equipped anti-lock brake system (ABS) with
traction control (TC). It controls the brake
pressure to the four wheels to keep the vehicle
under control while braking.
The second type of ABS is optional and is called
dynamic stability control (DSC). This control
module adds yaw sensors to the package to help
in sensing a loss of vehicle control.
Audio Control Unit
The audio control unit is connected to the SCP
communication network and also to the audio
control protocol (ACP) communication network.
The audio control unit communicates with the
compact disc and the cellular phone transceiver.
Driver Door Control Module (DDCM)
DDCM is connected to the SCP communication
network. The module controls many functions
including power windows, driver mirror, power
locks, and keyless remote entry.Driver Seat Control Module (DSCM)
The DSCM is connected to the SCP
communication network. The DSCM is located
under the driver seat and controls the seat
positions. The module also communicates with the
DDCM to control the driver seat memory
functions.
Control Module Locations
Key to illustration on following page:
1.Anti-lock brake system/Traction control
system or Dynamic stability control
(ABS/TCCM or DSCCM)
(non-handed)
2.Throttle actuator control module (TACM)
(non-handed)
3.Powertrain control module (PCM) (handed)
4.Air conditioning control module (A/CCM)
(non-handed)
5.Restraint control module (RCM) (non-handed)
6.Sliding roof control module (SRCM)
(non-handed)
7.Passenger seat heater control module
(PSHCM) (non-handed)
8.Rear electronic control module (RECM)
(non-handed)
9.Vehicle information control module (VICM)
(Japan only)
10.Adaptive damping control module (ADCM)
(non-handed)
11.Parking aid control module (PACM)
(non-handed)
12.Navigation control module (NCM)
(non-handed)
13.Vehicle emergency control module (VECM)
(non-handed)
14.Voice-activated control module (VACM)
(non-handed)
15.Cellular telephone control module (CTCM)
(non-handed)
16.Driver seat heater control module (DSHCM)
(non-handed)
17.Driver seat control module (DSCM) (handed)
18.Driver door control module (DDCM)
(handed)
19.Instrument pack (handed)
20.General electronics control module (GECM)
(non-handed)
21.Steering column lock module (SCLM) (handed)