suspension JAGUAR S TYPE 2005 1.G Technical Guide Update

Contents
1
Subject Page
Glossary
Abbreviations 3
Introduction4
Vehicle Weights 5
Dimensions 5
Vehicle Features 6
Body
Body Structure 10
Engine Compartment 15
Trunk 16
Jacking and Towing 18
Glazing 19
Doors and Door Mirrors 21
Windshield Wipers and Washers 23
Exterior and Interior Trim 24
Seats 26
Interior Features 30
Occupant Protection
Seat Belts 32
Airbags 33
SRS Operation 35
Fuel System
Introduction 38
Evaporative Emissions System 42
Exhaust System
Introduction 44
Transmission
Introduction 45
Chassis
Introduction 46
Front Suspension 47
Rear Suspension 49
Wheels and Tyres 52
Driveline 53
Final Drive (differential) 54
Brakes 55
Power Assisted Steering 58
Steering Column 59
Climate Control
System Overview 63
continued:
JAGUARS-TYPE

JAGUARS-TYPEGlossary
3 A Ab
bb
br
re
ev
vi
ia
at
ti
io
on
nD
De
es
sc
cr
ri
ip
pt
ti
io
on
n
ABS anti-lock braking system
ABS/TCCM anti-lock braking system/
traction control system control
module
A/C air conditioning
A/CCM air conditioning control
module
ADCM adaptive damping control
module
ADRC adaptive damper ride control
ALR automatic locking retractor
BIW body-in-white
ûC degree Celsius
CAN controller area network
CATS computer active technology
suspension
CD compact disc
CTCM cellular telephone control
module
DATC dual automatic temperature
control
DDCM driver door control module
DSC(CM) dynamic stability control
(control module)
DSCM driver seat control module
DSHCM driver seat heater control
module
ECM electronic control module
EFT engine fuel temperature
(sensor)
EVAP evaporative emission
FTP fuel tank pressure (sensor)
GDO garage door opener
GECM general electronic control
module
GPS global positioning system
HO2S heated oxygen sensor
in inch
IP injection pressure (sensor)
IVD interactive vehicle dynamics
kg kilogram
km/h kilometer per hour
kW kilowatt
lb pound
m meter The following abbreviations are used in this document:
A Ab
bb
br
re
ev
vi
ia
at
ti
io
on
nD
De
es
sc
cr
ri
ip
pt
ti
io
on
n
LH(D) left-hand (drive)
mile/h mile per hour
mm millimeter
ms millisecond
NAS North American specification
NCM navigation control module
Nm Newton meter
OBD on-board diagnostics
PAS power assisted steering
PATS passive anti-theft system
PCM powertrain control module
PDU portable diagnostic unit
PSHCM passenger seat heater control
module
RECM rear electronic control module
RCM restraints control module
RH(D) right-hand (drive)
RPC(M) reverse park control (module)
RTTI real time traffic information
SAE Society of Automotive Engineers
SCLM steering column lock module
SCP standard corporate protocol
SRCM sliding roof control module
SRS supplementary restraints
system
TACM throttle actuator control
module
UK United Kingdom
USA United States of America
V volt
VACM voice-activated control module
VECM vehicle emergency control
module
VEMS vehicle emergency messaging
system
VICM vehicle information control
module
VICS vehicle information and
communication system
VIN vehicle identification number

JAGUARS-TYPEIntroduction
5
Vehicle Weights
Vehicles with Vehicles with
3.0 litre V6 engines 4.0 litre V8 engines
Kgs (lbs) Kgs (lbs)
Kerb weight1635 (3604) 1725 (3803)
Front axle kerb weight 850 (1874) 915 (2017)
Rear axle kerb weight 785 (1730) 810 (1786)
Unladen weight 1705 (3759) 1795 (3957)
Gross vehicle weight2175 (4795) 2195 (4839)
Gross front axle 998 (2200) 1018 (2244)
Gross rear axle 1177 (2595) 1177 (2595)
Gross combination weight 4025 (8873) 4045 (8918)
D.501.1476
EXTERNAL DIMENSIONS
2909 (114.5)
*Height, with Comfort suspension 1401 (55.2) with Sports suspension 1411 (55.5)
Turning circle curb to curb 11.40 m (37 ft 9 in)
D.501.1476
Dimensions
4861 (191.4)
1819 (71.6)
1544 (60.78)
2040 (80.3)
1537 (60.51)
*
All dimensions in mm (in)

JAGUARS-TYPEBody
12
Front and Centre Floor Pan
The floor pan is a three-piece construction with
handed dash panels, welded front suspension
housing, an integral centre bearing panel for the
driveshaft and a large under-tunnel heatshield.
Rear Floor Pan
Multi-piece floor pan design, the rear tub is
designed to accept either a full size or space saver
spare wheel and the luggage compartment has
four tie-down luggage loops. Two plastic covers
are located under the rear seat and these give
easy access to the fuel tank mounted components.
A plastic battery tray is located below the luggage
load floor.
Roof
Provision has been made for roof rack fixings and
the roof has reinforcement for vehicles fitted with
a the sliding roof.
Sliding Roof
The sliding roof has an exterior encapsulated glass
roof panel, with sliding sunshade, and has tilt and
slide operation. The sunshade is available in two
colours to match the headlining. Note that the
sunshade cannot be closed if the sliding roof is in
the fully open position or has been partly closed
from the fully open position; this is because the
J.501.1775
SLIDING ROOF MOTOR ASSEMBLYpull-cup is hidden. To allow access to the
sunshade pull-cup, the sliding roof must be fully
closed. Special screws are used in some locations.
When replacements are required these screws are
supplied in packs, do not use any other screws
than those supplied. Low battery voltage may
prevent operation of the sliding roof although the
relays may be heard operating. The sliding roof
cannot be fitted as a retrofit item.
Body Side and Quarter
The vehicle has one piece body sides and one
piece door opening panels, with full height ÔAÕ
post and ÔB-CÕ post reinforcement. The jacking
reinforcement joins the door opening panel to
rear quarter inner reinforcement panel. Large
vacuum-formed wheel arch liners are fitted front
and rear. A sill appliquŽ protects the BIW
sheetmetal from stone damage and an anti-chip
coating is applied to the sills
Closures
One piece door inner and outer pressing with side
impact beams. One piece front and rear door
hinge reinforcement panels.
Door sealing is a triple seal system:
¥ primary seals - single sponge profile with part
dense rubber foot, ÔCÕ-channel mounted on
the upper door and peg mounted below the
waist.
¥ secondary seals - body side flange mounted
carrier with sponge and dense rubber,
colour-keyed trim flap
¥ margin sealing - flange mounted roof
rail/gutter seal which closes off the upper
door opening line above the waist and
terminates with a shaped moulding at each
end.
A variety of different profiles are peg mounted to
the ÔAÕ and ÔCÕ pillar periphery below the waist
and also door bottoms. A separate ÔBÕ pillar seal is
riveted as part of the ÔBÕ pillar appliquŽ.
Sliding Roof Control
Module (SRCM)

JAGUARS-TYPEChassis
46
Introduction
The Jaguar S-TYPE has an all-new suspension,
designed with traditional Jaguar refinement but
with an added sporty feel for the driver. Both
front and rear suspensions have double wishbone
construction with the front having a high balljoint.
JaguarÕs Computer Active Technology Suspension
(CATS), is offered as an optional fit to further
enhance the vehicle ride and handling quality.
The suspension arrangement offers a standard set-
up for most markets. The front and rear control
arms are set at angles to counteract dive when
braking and squat when accelerating, giving a
stable platform under most conditions. It is vitally
J.204.369
FRONT SUSPENSION
J.204.369
Number 1
Cross Member
Number 2
Cross Memberimportant that before removing either of the front
cross members or the rear axle cross members,
the vehicle body and the component being
removed are marked to ensure correct
realignment during assembly. The Jaguar S-TYPE
body-in-white fixings have a greater clearance
than previous Jaguar cars so require this extra
special care with alignment on re-assembly.
Vibration and ride and handling concerns may
arise if alignment is not maintained.

JAGUARS-TYPEChassis
47
Front Suspension
The independent front wheel suspension is a
double wishbone axle arrangement with
aluminium control arms. The two arms are of
different lengths, which minimises the changes in
track and camber. Inclination of the upper control
arm axis provides anti-dive front suspension
action. There are two front cross members,
known as Number 1 and Number 2.
Number 1, the forward cross member, is a steel
fabrication, non-isolated, which locates the lower
control arm front mounting, the anti-roll bar and
the cooling module.
The rear cross member, Number 2, is an
aluminium casting, non-isolated and it locates the
lower control arm rear mounting, the power
steering rack and the engine hydro-mounts.
WARNING: No attempt must be made to
weld or repair the aluminium cross
member. If it is damaged, a new one must
be installed.
Lower Control Arm
The lower control arm is an aluminium forging
and has locations for the damper and the anti-roll
bar drop link. It is mounted with one hydro-bush,
the front lower bush, and one rubber bush, both
serviceable. This is the first time that a hydraulic
bush has been fitted to a Jaguar wishbone. The
hydro-bush is tuned for refinement and helps to
J.204.402
reduce brake vibration.
Service adjustments for caster and camber can be
made to the lower control arm geometry with the
addition of cam bolts (not supplied with the
vehicle).
LOWER CONTROL ARM
J.204.402
Lower
Control Arm
Anti-roll BarAnti-roll Bar
Drop Link

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-TYPEChassis
55
Brakes
Brake Control Module
Brakes are controlled with a Teeves Mk 20E brake
modulator.
The anti-lock brake/traction control, control
module (ABS/TCCM) contains the integral software
for ABS and traction control, similar to current XJ
and XK Series vehicles. It is supplied as a 10 valve,
4-channel module and calibration is the same to
all powertrains. It is connected to the SCP bus for
traction control, warnings and vehicle speed.
Dynamic Stability Control
Dynamic stability control (DSC) is a new Jaguar
safety feature, which uses ABS and traction
control to control yaw movements of the vehicle.
Yaw is the rotary motion of the vehicle on its
vertical axis, a force that would cause oversteer or
oversteer or sideslip. The dynamic stability
control module (DSCM) contains the same
software as described but with the addition of IVD
software. The modulator is supplied as a 12 valve,
4-channel module calibrated for base suspension
only. The connectors differ between the two; the
10 valve unit has a 25-way with sliding cam, as
D.206.254
D.206.175
BRAKE CONTROL MODULE
BRAKE SYSTEM LAYOUT