2010 JAGUAR XFR suspension system

Published: 16-Oct-2013
Suspension System - General Information - Camber and Caster Adjustment
General Procedures
NOTES:

The camber and caster adjustment for the left-hand side is shown, the procedure for adjusting the right-hand side is
similar.


This procedure must be carried out using a 4-post ramp.


Adjustments to the camber will affect the toe settings. Therefore, the camber and toe may need to be adjusted at the
same time to achieve the correct settings.


Adjustments to the camber may affect the caster settings. Therefore, the caster will need to be checked, and adjusted as
necessary.

All vehicles

1. Vehicles with air suspension.
For additional information, refer to: Air Suspension Manual Tight
Tolerance Setting Mode (204-05, General Procedures).

2. Check the rear toe adjustment.
For additional information, refer to: Rear Toe Adjustment (204-00 Suspension System - General Information, General Procedures).
Adjust as necessary.

3. Check the front toe adjustment.
For additional information, refer to: Front Toe Adjustment (204-00 Suspension System - General Information, General Procedures).
Adjust as necessary.

4. Check the camber and caster settings. Follow the equipment
manufacturer's instructions.


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

Loosen the tie-rod end lock nut.
Clean and lubricate the lock nut and tie-rod threads.

Published: 16-Oct-2013
Suspension System - General Information - Four-Wheel Alignment
General Procedures
CAUTIONS:

Make sure the vehicle is on a flat level surface.
Make sure the tire pressures are within specification.
Make sure that only the manufacturers' recommended four wheel alignment equipment is used.
Make sure the steering is in the straight ahead position.
1. For wheel alignment information, refer to the suspension specification
section.
For additional information, refer to: Specifications (204-00 Suspension System - General Information, Specifications).

2. Check the tie rod ends, suspension joints, wheel bearings and wheels
and tires for damage, wear and free play.
Adjust or repair any worn, damaged or incorrectly adjusted
components.

3. Check and adjust tire pressures.

4. Position the vehicle on a calibrated, level, vehicle lift.

5. Vehicles with air suspension.
For additional information, refer to: Air Suspension Manual Tight
Tolerance Setting Mode (204-05, General Procedures).

6. Release the vehicle parking brake.

7. Using only four-wheel alignment equipment approved by Jaguar, check
the wheel alignment.


8. NOTE: LH illustration shown, RH is similar. To
adjust, loosen the toe link locknuts. www.JagDocs.com

Published: 16-Oct-2013
Suspension System - General Information - Front Toe Adjustment
General Procedures
CAUTIONS:

Make sure the vehicle is on a flat level surface.
Make sure the tire pressures are within specification.
Make sure that only the manufacturers' recommended four wheel alignment equipment is used.
Make sure the steering is in the straight ahead position.
1. For wheel alignment information, refer to the suspension specification
section.
For additional information, refer to: Specifications (204-00 Suspension System - General Information, Specifications).

2. Check the tie rod ends, suspension joints, wheel bearings and wheels
and tires for damage, wear and free play.
Adjust or repair any worn, damaged or incorrectly adjusted
components.

3. Check and adjust tire pressures.

4. Position the vehicle on a 4 post lift.

5. Release the vehicle parking brake.

6. Vehicles with air suspension.
For additional information, refer to: Air Suspension Manual Tight
Tolerance Setting Mode (204-05, General Procedures).

7. For additional information, refer to: Air Suspension Manual Tight
Tolerance Setting Mode (204-05, General Procedures).

8. Using only four-wheel alignment equipment approved by Jaguar, check
the wheel alignment.


9. NOTE: LH illustration shown, RH is similar. To
adjust, loosen the tie rod end lock nuts.

Published: 16-Oct-2013
Suspension System - General Information - Rear Toe Adjustment
General Procedures

1. Vehicles with air suspension.
For additional information, refer to: Air Suspension Manual Tight
Tolerance Setting Mode (204-05, General Procedures).

2. Check the toe settings. Follow the equipment manufacturer's
instructions.


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

Loosen the lock nut.
Clean and lubricate the lock nut and toe link threads.












4. Rotate the toe link to adjust the toe settings.
5. Tighten the lock nut.













6. Check the toe settings. Follow the equipment manufacturer's
instructions.

Published: 14-Feb-2012
Suspension System - General Information - Front Wheel Bearing and Wheel Hub Runout Check Vehicles With: High Performance Brakes
General Procedures

NOTES:


Some variation in the illustrations may occur, but the essential information is always correct.


RH illustration shown, LH similar.
1. WARNING: Make sure to support the vehicle with axle stands.
Raise the front of the vehicle.
2. Remove the front wheel.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

3. Remove the 2 brake caliper support bolts.
Push the brake caliper pistons back to release the pads from the disc. Detach the brake caliper and position to one side with suitable tie strap.















4. Remove the disc.
Remove the 2 clips.









5. Mount special tool 100-053 on the lower caliper support bracket as shown.
A
spacer washer may be required under the tool.
Use the brake caliper support bolt and suitable nut. 6. Position
the Dial Test Indicator (DTI) gauge probe on the hub flange as shown.
7. Zero DTI and rotate the hub one complete revolution to measure hub runout. hub runout must not exceed 0.015 mm.
8. If the hub runout exceeds the limit, install a new hub and bearing.For additional information, refer to:

Published:
27-Feb-2012
Suspension System - General Information - Rear Wheel Bearing and Wheel
Hub Ru
nout Check

General Procedures

NOTES:

RH illustra tion shown, LH sim ilar.

Some variat ion i n the illustra tions may o ccur, but the es senti al informa tion is always co rrect.

It is recommended that the DTI is capable of measurements of 0.005 mm.


1. WARNING: Make sure to support the vehicle with axle stands.

Raise the rear of the vehicle.
2. Remove the rear wheel.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).
3. Remove the 2 brake caliper support bolts.
Push the brake pads back to release the brake
caliper from the disc.
Detach the brake caliper and position to one side
with suitable tie strap.













4. Remove the disc.
Remove the 2 clips.

Upper Control Arm
The forged-aluminum upper control arm is a wishbone design and connects to the vehicle body through two plain bushes, and
links to the swan neck wheel knuckle by an integral ball joint. The upper control arm is inclined to provide anti-dive
characteristics under heavy braking, while also controlling geometry for vehicle straight-line stability.

Lower Control Arm

The forged aluminum lower control arms are of the wishbone design; the arms separate to allow for optimum bush tuning:

The rear lateral control arm is fitted with a bush at its inner end which locates between brackets on the subframe. The
arm is secured with an eccentric bolt which provides the adjustment of the suspension camber geometry. The outer end
of the control arm has a tapered hole which locates on a ball joint fitted to the wheel knuckle. An integral clevis bracket
on the forward face of the lateral control arm allows for the attachment of the forward control arm. A bush is fitted
below the clevis bracket to provide for the attachment of the stabilizer bar link. A cross-axis joint is fitted to a
cross-hole in the control arm to provide the location for the clevis attachment of the spring and damper assembly.
The forward control arm is fitted with a fluid-block rubber bush at its inner end which locates between brackets on the
subframe. The arm is secured with an eccentric bolt which provides adjustment of the castor and camber geometry. The
outer end of the control arm is fitted with a cross-axis joint and locates in the integral clevis bracket on the lateral
control arm.

Wheel Knuckle

The cast aluminum wheel knuckle is a swan neck design and attaches to the upper control arm and lower lateral control arm.
The lower lateral control arm locates on a non serviceable ball-joint integral with the wheel knuckle. The lower boss on the
rear of the knuckle provides for the attachment of the steering gear tie-rod ball joint.
The wheel knuckle also provides the mounting locations for the:
wheel hub and bearing assembly
the wheel speed sensor (integral to the wheel hub and bearing assembly)
brake caliper and disc shield.

Stabilizer Bar

The stabilizer bar is attached to the front of the subframe with bushes and mounting brackets. The pressed steel mounting
brackets locate over the bushes and are attached to the cross member with bolts screwed into threaded locations in the
subframe. 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.

The stabilizer bar is manufactured from 32mm diameter tubular steel on supercharged models and 31mm diameter tubular
steel on diesel and normally aspirated models and has been designed to provide particular characteristics in maintaining roll
rates, specifically in primary ride comfort.

Each end of the stabilizer bar curves rearwards to attach to a ball joint on a stabilizer link. Each stabilizer link is secured to a
bush in the lower lateral arm with a bolt and locknut. The links allow the stabilizer bar to move with the wheel travel providing
maximum effectiveness.

The only difference between the front stabilizer bars, in addition to the diameter, is in the shape to accommodate engine
variant:

a slightly curved bar, between bush centers, for V6 diesel (31 mm dia) and V8 gasoline supercharged (32 mm dia),
a straight bar, between bush centers, for V6 and V8 normally aspirated gasoline engines (31 mm dia).
Spring and Damper Assembly

The spring and damper assemblies are located between the lower lateral arm and the front suspension housing in the inner
wing. 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 seat secured by a circlip onto the damper tube. The damper's lower
spherical joint is an integral part of the lateral lower control-arm, and the damper takes the form of a clevis-end, which
straddles the spherical joint.

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.

Supercharged 4.2L vehicles up to 2010MY: The adaptive damper functions by restricting the flow of hydraulic fluid through
internal galleries in the damper's piston. The adaptive damper has a solenoid operated valve, which when switched allows a
greater flow of hydraulic fluid through the damper's piston. This provides a softer damping characteristic from the damper. The
adaptive damper defaults to a firmer setting when not activated. The solenoid is computer controlled and can switch between
soft and hard damping settings depending on road wheel inputs and vehicle speed.

Supercharged 5.0L vehicles from 2010MY: The variable damper functions by adjustment of a solenoid operated variable orifice,
which opens up an alternative path for oil flow within the damper. When de-energized the bypass is closed and all the oil flows

Front Suspension - Front Suspension
Diagnosis and Testing

Principle of Operation Published: 17-May-2012

For a detailed description of the suspension system, refer to the relevant Description and Operation section of the workshop
manual.REFER to: (204-01 Front Suspension)

Front Suspension (Description and Operation), Front Suspension (Description and Operation), Front 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