ECU JAGUAR XFR 2010 1.G Service Manual
[x] Cancel search | Manufacturer: JAGUAR, Model Year: 2010, Model line: XFR, Model: JAGUAR XFR 2010 1.GPages: 3039, PDF Size: 58.49 MB
Page 395 of 3039
the aluminum wheel knuckle via an integral ball-joint.
Lower Control Arm
The aluminum lower arm locates to the subframe via one cross-axis joint and one plain rubber bush, and to the wheel knuckle
via a second plain rubber bush.
The rear of the control arm has mounting points for the damper and the stabilizer link.
Toe-Link
The toe-link is located between the wheel knuckle and brackets on the subframe.
The toe-link comprises an inner rod with integral axial ball joint. The inner ball joint has a threaded spigot which locates in a
bracket on the subframe and is secured with a locknut. The rod has an internal thread which accepts the outer rod.
The outer rod has a cross-axis joint at its outer end which is located in a clevis on the wheel knuckle, and is secured with a
bolt and locknut.
The length of the toe-link can be adjusted by rotating the inner rod. This allows for adjustment of the toe angle for the rear
wheel. Once set the inner rod can be locked in position by tightening a locknut on the outer rod against the inner rod.
Wheel Knuckle
The cast aluminum wheel knuckle attaches to:
the upper control arm via a ball-joint located in the arm,
the lower control arm via a plain rubber bush located in the arm,
the toe-link via a cross-axis joint located in the toe link.
The wheel knuckle also provides the mounting locations for the:
wheel hub assembly,
wheel bearing,
wheel speed sensor,
brake caliper,
and disc shield.
Stabilizer Bar
The solid construction stabilizer bar and bushes have been designed to provide particular characteristics in maintaining roll
rates, specifically in primary ride comfort. There are six derivatives of rear stabilizer bar, with different diameters, to support
the various powertrains:
V6 gasoline - 12.7 mm solid bar
V8 4.2L and 5.0L gasoline - 13.6 mm solid bar
V6 2.7L diesel -14.5 mm solid bar
V6 3.0L diesel - 14.5 mm solid bar
V6 3.0L diesel with Adaptive Damping – 16mm tubular
V8 4.2L gasoline supercharged – 16mm tubular
V8 5.0L gasoline supercharged
- SV8 - 17mm tubular
- XFR - 18mm tubular
The stabilizer bar is attached to the top of the subframe with two bushes and mounting brackets. The stabilizer bar has
crimped, 'anti-shuffle' collars pressed in position on the inside edges of the bushes. The collars prevent sideways movement of
the stabilizer bar.
Each end of the stabilizer bar curves rearward to attach to a ball joint on each stabilizer link. Each link is attached via a
second ball joint to a cast bracket on the lower control arm. The links allow the stabilizer bar to move with the wheel travel
providing maximum effectiveness.
Spring and Damper Assembly
The spring and damper assembly are attached to cast brackets on the lower control arms and to the vehicle body by four studs
secured by locking nuts. Dependant on vehicle model there are three types of coil spring and damper available:
a standard oil passive damper (All models except supercharged),
an adaptive damper, also known as Computer Active Technology Suspension (CATS) on 4.2L supercharged vehicles up to
2010MY, For additional information refer to Vehicle Dynamic Suspension 4.2L.
a continuously variable adaptive damper, also known as Adaptive Dynamics System on 5.0L supercharged vehicles from
2010MY. For additional information refer to Vehicle Dynamic Suspension 5.0L.
The dampers are a monotube design with a spring located by a circlip onto the damper tube. The lower end of the damper has
a spherical joint which locates in the lower control arm and is secured with a bolt.
The damper piston is connected to a damper rod which is sealed at its exit point from the damper body. The threaded outer
end of the damper rod locates through a hole in the top mount. A self locking nut secures the top mount to the damper rod.
The damper rod on the adaptive damper has an electrical connector on the outer end of the damper rod. www.JagDocs.com
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2. CAUTION: Nuts and bolts must be tightened with the
weight of the vehicle on the suspension.
Secure the lower arm to the wheel hub assembly.
3. CAUTION: Do not allow the brake caliper to hang on the
brake hose.
NOTE: Make sure that new bolts are installed.
Secure the rear brake caliper.
Tighten the bolts to 103 Nm.
4. Secure the rear stabilizer bar link.
Tighten the nut to 48 Nm.
5. CAUTION: Nuts and bolts must be tightened with the
weight of the vehicle on the suspension.
Secure the shock absorber and spring assembly to the lower
arm.
6. Install the wheel and tire.
For additional information, refer to: W heel and Tire (204-04 Wheels and Tires, Removal and Installation).
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6. NOTE: Do not disassemble further if the component is
removed for access only.
Remove the shock absorber and spring assembly. TORQUE: 133
Nm
Vehicles with active damping
7. WARNINGS:
Make sure the shock absorber is secured by fully
inserting the locking pin in to the special tool. Failure to
follow these instructions may result in personal injury.
As the spring is under extreme tension care must be
taken at all times. Failure to follow these instructions may
result in personal injury.
Make sure that a new nut is installed.
Using the special tool, compress the suspension spring to
remove the shock absorber.
Compress the spring.
Remove the nut. TORQUE: 27 Nm
Vehicles without active damping
8. WARNINGS:
Make sure the shock absorber is secured by fully
inserting the locking pin in to the special tool. Failure to
follow these instructions may result in personal injury.
As the spring is under extreme tension care must be
taken at all times. Failure to follow these instructions may
result in personal injury.
Make sure that a new nut is installed.
Using the special tool, compress the suspension spring to
remove the shock absorber.
Compress the spring.
Remove the nut. TORQUE: 50 Nm
www.JagDocs.com
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1. Install the shock absorber rod components.
Vehicles with active damping
2. WARNINGS:
Make sure the shock absorber is secured by fully
inserting the locking pin in to the special tool. Failure to
follow these instructions may result in personal injury.
As the spring is under extreme tension care must be
taken at all times. Failure to follow these instructions may
result in personal injury.
Make sure that a new nut is installed.
Using the special tool, compress the suspension spring to
install the shock absorber.
Compress the spring.
Tighten the nut to 27 Nm.
Installation
Allvehicles
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3. WARNINGS:
Make sure the shock absorber is secured by fully
inserting the locking pin in to the special tool. Failure to
follow these instructions may result in personal injury.
As the spring is under extreme tension care must be
taken at all times. Failure to follow these instructions may
result in personal injury.
Make sure that a new nut is installed.
Using the special tool, compress the suspension spring to
install the shock absorber.
Compress the spring.
Tighten the nut to 50 Nm.
4. Install the shock absorber and spring assembly.
Tighten to 133 Nm.
5. Install the wheel and tire.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).
All vehicles
6. Install the shock absorber and spring assembly top mount
nuts.
Tighten to 28 Nm.
Vehicleswithoutactivedamping
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Rear Suspension - Shock Absorber and Spring Assembly
Disassembly and Assembly Published: 11-May-2011
Disassembly
1. Remove the shock absorber and spring assembly.
For additional information, refer to Shock Absorber and Spring Assembly in this section.
2. WARNING: Make sure the shock absorber is secured by fully
inserting the locking pin in to the special tool. Failure to
follow these instructions may result in personal injury.
Install the shock absorber and spring assembly to the special
tool as shown.
3. WARNING: AS THE SPRING IS UNDER EXTREME TENSION
CARE MUST BE TAKEN AT ALL TIMES. FAILURE TO FOLLOW
THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
Clamp the road spring.
4. Remove the shock absorber retaining nut.
Remove and discard the retaining nut. Compressor, Coil Spring
204-476 Special Tool(s) www.JagDocs.com
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The TPMS uses active tire pressure sensors which are located on each wheel, inside the tire cavity. The sensor incorporates the
tire valve and is secured in the wheel by a nut on the outside of the wheel. The sensor contains a Printed Circuit Board which
houses a PTC (positive temperature coefficient)sensor, a Piezo pressure sensor, a radio receiver and transmitter and a lithium
battery.
The tire pressure sensors use the PTC sensor and the Piezo sensor to periodically measure the pressure and temperature of
the air inside the tire. The data is transmitted by RF data signals at either 315 MHz or 433 MHz dependant on market
requirements.
The RF transmission from the sensor contains a unique identification code in its transmission data. This allows the TPMS to
identify the wheel on the vehicle. If the sensor is replaced on a wheel, the new sensor identification will be learnt through the
learn and location process.
The tire pressure sensor can also detect when the wheel is rotating. In order to preserve battery power, the sensor uses
different transmission rates when the wheel is stationary or moving.
NOTE: For important information regarding the removal and fitting of tire pressure sensors and associated valves, see the
Tire Changing section.
Instrument Cluster Indications
Item Description 1 Low tire pressure warning indicator 2 Message center Tire Pressure Sensor
Page 471 of 3039
Published: 11-May-2011
Wheels and Tires - Tire Pressure Monitoring System (TPMS) Front Antenna
Removal and Installation
Removal
NOTE: Removal steps in this procedure may contain installation details.
1. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
2. NOTES:
This step requires the aid of another technician.
Lower the radiator splash shield enough to access the tire pressure
monitoring system front antenna.
Note the position of the component before removal.
Installation
1. CAUTION: Make sure that the component is secured in the retainer.
NOTE: Make sure that the component is installed to the noted
removal position.
To install, reverse the removal procedure.
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Installation
1. CAUTION: Make sure that the component is secured in the retainer.
NOTE: Make sure that the component is installed to the noted
removal position.
To install, reverse the removal procedure.
Page 536 of 3039
60 Oil seal The multi-plate clutch is contained in a clutch basket attached to the differential carrier with the crown wheel securing bolts.
Alternate plates of the clutch pack are keyed to the clutch basket and the LH sun gear. A pressure disc is installed on the outer end of the clutch pack and keyed to the clutch basket. A thrust race on the end of the clutch basket incorporates lugs which
extend through the clutch basket onto the pressure disc.
The actuator assembly is mounted on bearings on the outboard end of the clutch basket, against the thrust race. The actuator
assembly consists of input and output actuators separated by five ball bearings. A locking pin in the cover engages with a slot
in the output actuator to prevent it turning, but allow it to move axially. The input actuator engages with the reduction gearbox
and is free to rotate relative to the cover. Ball bearings locate in curved grooves in the mating faces of the input and
output actuators. The bottom surface of each groove incorporates a ramp. Rotation of the input actuator forces the ball
bearings up the ramps in the grooves and induces an axial movement in the output actuator. The thrust race and pressure disc
transfer the axial movement from the output actuator to the clutch pack.
Item Description 1 Actuator 2 Multi-plate clutch 3 Differential The motor is a 12 V dc motor that adjusts the frictional loading of the multi-plate clutch, via the reduction gearbox and the
actuator assembly, under the control of the DLM. Adjusting the frictional loading of the multi-plate clutch adjusts the locking
torque between the crown wheel drive gear and the sun wheel.
Four bolts attach the motor to the reduction gearbox, which is located in position on the cover with two dowels, and secured
with four bolts. An O-ring seals the joint between the motor and the reduction gearbox.
The motor is driven by a 12 V dc feed direct from the DLM. The motor also incorporates the following connections with the
DLM:
A motor temperature sensor, to prevent excessive use from damaging the motor.
Two Hall effect motor position sensors, to enable closed loop control of the motor.
The temperature sensor provides a differential oil temperature signal to the DLM, to prevent excessive use from damaging the
multi-plate clutch.
Differential Locking Module (DLM)
The DLM controls operation of the electronic differential. The DLM is attached to a bracket located on the LH side of the luggage compartment, immediately forward of the fender tail lamp, behind the trim.