2010 JAGUAR XFR suspension system

(204-00 Suspension System - General Information, General Procedures).

Published: 06-Jun-2013
Front Suspension - Front Stabilizer Bar V8 5.0L Petrol/V8 S/C 5.0L Petrol
Removal and Installation


Removal


NOTE: Removal steps in this procedure may contain installation details.

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).


2. WARNING: Do not work on or under a vehicle supported only by a jack.
Always support the vehicle on safety stands.
Raise and support the vehicle.

3. Refer to: Air Conditioning (A/C) System Recovery, Evacuation and Charging (412-00 Climate Control System - General Information, General Procedures).

4. Refer to: Radiator Splash Shield (501-02 Front End Body Panels, Removal and Installation).

5. Refer to: Air Deflector (501-02 Front End Body Panels, Removal and Installation).

6. Refer to: Front Wheel Bearing and Wheel Hub - TDV6 3.0L Diesel /V8 5.0L Petrol/V8 S/C 5.0L Petrol (204-01 Front Suspension, Removal and Installation).

7. Refer to: Engine Cover - V8 5.0L Petrol/V8 S/C 5.0L Petrol (501-05 Interior Trim and Ornamentation, Removal and Installation).

8.
Secure the radiator assembly. 303-021
Engine support bracket Special Tool(s) www.JagDocs.com

Rear Suspension - Rear Suspension - Overview
Description and Operation

OVERVIEW Published: 11-May-2011

The double wishbone type rear-suspension is a fully independent design assembled on a steel subframe; large diameter
bushes isolate the subframe from the vehicle's body.
A toe-link located between the wheel knuckle and the subframe is used to adjust the toe angle of the rear wheels.

The wheel knuckle attaches to the upper and lower control arms, and the coil spring and damper assembly is located between
the lower control arm and the vehicle body.
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 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

Rear Suspension - Rear Suspension
Diagnosis and Testing

Principle of Operation Published: 22-May-2012

For a detailed description of the suspension system, refer to the relevant Description and Operation section of the workshop
manual.REFER to: (204-02 Rear Suspension)

Rear Suspension (Description and Operation), Rear Suspension (Description and Operation), Rear Suspension (Description and Operation).
Inspection and Verification

1. Verify the customer concern

2. Visually inspect for obvious signs of damage and system integrity



3. If an obvious cause for an observed or reported condition is found, correct the cause (if possible) before proceeding to
the next step
4. If the fault is not visually evident, verify the symptom and refer to the following Symptom Chart

Symptom Chart
Symptom Possible Cause Action Evidence of fluid on suspension damper
Fluid on damper from an external source
Fluid leaking from damper
Damper not faulty, do not renew
GO to Pinpoint Test A.
PINPOINT TEST A : DAMPER FLUID LEAK DIAGNOSIS TEST CONDITIONS DETAILS/RESULTS/ACTIONS A1: ASSESS LEAK NOTES:


Residual oil left over from the damper assembly process may create oil staining on the damper tube. This will not affect
the function of the damper.
Slight seepage is considered normal. 1 Assess the extent of the oil leakage Is the leakage serious enough to indicate that the damper seal has failed? Yes
GO to Pinpoint Test B. No
Damper not faulty, do not renew.
PINPOINT TEST B : CONFIRM LEAK TEST CONDITIONS DETAILS/RESULTS/ACTIONS B1: ROAD TEST 1 Clean all traces of oil from the damper 2 Drive the vehicle over a speed bump or similar ten times Is any fluid visible on the outside of the damper? Yes
GO to Pinpoint Test C. No
Damper not faulty, do not renew.
PINPOINT TEST C : DAMPER STICKOUT TEST TEST CONDITIONS DETAILS/RESULTS/ACTIONS C1: DAMPER STICKOUT TEST Mechanical

Damaged suspension dampers Visual Inspection

Rear Suspension - Rear Stabilizer Bar
Removal and Installation Published: 06-Jun-2013



Removal

1. Disconnect the battery ground cable.
For additional information, refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).


2. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.

3. Remove both rear wheels and tires.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

4. Drain the fuel tank.
For additional information, refer to: Fuel Tank Draining (310-00 Fuel System - General Information, General Procedures).

5. Remove the exhaust system.
For additional information, refer to: Front Muffler (309-00B Exhaust System - V6 3.0L Petrol, Removal and Installation).


6. CAUTION: Always plug any open connections to
prevent contamination.
NOTES:


To prevent the loss of brake fluid, using the special
tool apply the brake pedal and set to 40mm ( 1.6 in ) below
the rest position.


RH illustration shown, LH is similar.
Disconnect the brake hose from the brake caliper.
Using the special tool, press and hold the brake
pedal.
Remove and discard the two sealing washers. Powertrain Assembly Jack, HTJ
1200-2 Special Tool(s)

System - V6 3.0L Petrol, Removal and Installation).

19. Refill the fuel tank.
For additional information, refer to: Fuel Tank Draining (310-00 Fuel System - General Information, General Procedures).

20. Bleed the brake system.
For additional information, refer to: Brake System Bleeding (206-00 Brake System - General Information, General Procedures).

21. Install the rear wheels and tires.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

22. Connect the battery ground cable.
For additional information, refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

23. Using only four-wheel alignment equipment approved by Jaguar, check
and adjust the wheel alignment.
For additional information, refer to: Camber and Caster Adjustment (204-00 Suspension System - General Information, General Procedures).

Published: 11-May-2011
Vehicle Dynamic Suspension - Vehicle Dynamic Suspension V8 5.0L Petrol/V8 S/C 5.0L Petrol - Overview
Description and Operation

OVERVIEW

Adaptive Dynamics - Supercharged Vehicles from 2010MY

The adaptive dynamics system, is an electronically controlled suspension system which constantly adjusts the damping
characteristics of the suspension dampers in reaction to the existing driving conditions. The adaptive dynamics system is
available on specified models.

The system is controlled by an Adaptive Damping Module (ADM), located beneath the right-hand front seat. The module
receives signals from three dedicated vertical accelerometers; two at the front of the vehicle and one at the rear, which,
together with four suspension height sensors, determine the state of the body and wheel motions. In addition to these inputs,
further signals from other vehicle electronic system components to determine vehicle state and driver inputs are monitored by
the adaptive damping module. These combined signals are used by the adaptive damping module to continuously adjust the
damping characteristics of each of the suspension dampers in reaction to the current driving conditions to give the optimum
body control and vehicle ride.