2010 JAGUAR XFR Subframe

Rear Suspension - Rear Suspension - Component Location
Description and Operation
COMPONENT LOCATION Published: 11-May-2011










































Item Description 1 Subframe 2 Upper control arm 3 Spring and damper assembly 4 Stabilizer bar link 5 Toe link 6 Wheel hub and bearing assembly 7 Wheel knuckle 8 Lower control arm 9 Shear bracket

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.

1 Subframe 2 Stabilizer bar 3 Upper control arm 4 Spring and damper assembly 5 Toe link 6 Wheel knuckle 7 Wheel hub and bearing assembly 8 Stabilizer bar link 9 Lower control arm Upper Control Arm

The cast aluminum upper control arm locates to the subframe via one cross-axis joint and one plain rubber bush, and links to

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

11.















12.
13.
14. NOTE: Left-hand shown, right-hand similar.

Detach the shock absorber.













Detach the fuel filler hose.

















CAUTION: Under no circumstances must the flexible
coupling (or its fixings) be loosened or removed from the
driveshaft.
Detach the driveshaft from the rear drive axle flange.
Mark the position of the driveshaft in relation to the
rear drive axle flange.
Mark the position of the balance nut in relation to the
rear drive axle flange. (if fitted).
Mark the position of each nut and bolt in relation to the
driveshaft flexible joint.







NOTE: Left-hand shown, right-hand similar.

Remove the rear subframe reinforcement plate retaining bolts. www.JagDocs.com

15.

16.
17.
18. Install the special tool to support the rear subframe.

















NOTE: Left-hand shown, right-hand similar.
Remove the rear subframe rear retaining bolt.














NOTE: Left-hand shown, right-hand similar.
Remove the rear subframe front retaining bolt.












Remove the rear subframe.

2. Install new nuts to the stabilizer bar links.
Tighten to 48 Nm.















3. Install the rear subframe.
4. NOTE: Left-hand shown, right-hand similar.
Loosely install the rear subframe front bolt.













5. Loosely install the rear subframe rear bolt.

6. NOTE: Left-hand shown, right-hand similar.

Loosely install the rear subframe reinforcement plate bolts.













7. Tighten the subframe bolts.
Tighten to 80 Nm + 240°.















8. Remove the special tool.
9. Tighten the rear subframe reinforcement plate retaining bolts.
Tighten to 47 Nm.