Jaguar X-Type Sedan and Estate (Wagon). Service manual — part 23
Published: 11-May-2011
Suspension System - General Information -
General Specifications
Item
Specification
Clear Vision
Clear vision (negative value is counterclockwise)
0° ± 3°
Ride Height
Front
371 mm ± 15 mm
Rear
370 mm ± 15 mm
Ball Joint Radial Play
Lower ball joint — maximum
0.8 mm
Wheel Alignment - Front
2001.50 MY onwards VIN - C00344 to Current
Item
LH
RH
Split LH-RH
Castor
Decimal degrees
2.25° ± 0.75°
2.25° ± 0.75°
0° ± 0.75°
Degrees/minutes
2° 15' ± 45'
2° 15' ± 45'
0° ± 45'
Camber
Decimal degrees
-0.54° ± 0.75°
-0.54° ± 0.75°
0° ± 0.75°
Degrees/minutes
-0° 32' ± 45'
-0° 32' ± 45'
0° ± 45'
Total toe
Decimal degrees
-0.1° ± 0.20°
Degrees/minutes
-0° 6' ± 12'
Wheel Alignment - Rear
2001.50 MY onwards VIN - C00344 to Current
Item
LH
RH
Camber
Decimal degrees
-0.70° ± 0.75°
-0.70° ± 0.75°
Degrees/minutes
-0° 42' ± 45'
-0° 42' ± 45'
Toe
Decimal degrees
0.125° ± 0.14°
0.125° ± 0.14°
Degrees/minutes
0° 8' ± 8'
0° 8' ± 8'
Total toe
Decimal degrees
0.25° ± 0.20°
Degrees/minutes
0° 15' ± 12'
Rear thrust angle
Decimal degrees
0° ± 0.14°
Degrees/minutes
0° ± 8'
All the above figures are measured at "kerb" height -all fluids at full and a full fuel tank.
Tires must be inflated to normal pressure
For additional information, refer to:
Specifications
(204-04 Wheels and Tires, Specifications).
Rear thrust angle = (LH toe - RH toe) ÷ 2
Ride height is measured from the centre of the wheel to the apex of the wheel arch, through the wheel centre line.
Published: 11-May-2011
Suspension System - General Information - Wheel Alignment Angles
Description and Operation
Toe is adjustable on the front and rear suspension system. The front toe is adjusted by use of the front tie-rod. The rear toe is adjusted by
the use of cam bolts in the lower control arm to the rear crossmember.
Toe
Positive Toe (Toe-In)
Negative Toe (Toe-Out)
The vehicle toe setting:
Affects tire wear and directional stability.
Ride Height
• NOTE: All ride height measurements are carried out with vehicle empty and 9 litres of fuel in the tank (showroom condition).
Front Ride Height Measurement
Item
Description
1
Front ride height measurement
Rear Ride Height Measurement
Item
Description
1
Rear ride height measurement
Wheel Track
Item
Description
1
Front track
2
Rear track
Crabbing
Item
Description
1
Front track
2
Rear track crabbing
Crabbing is the condition in which the independent rear suspension (IRS) system is not square to the chassis. Heavily crowned roads can
give the illusion of crabbing.
Wander
Wander is the tendency of the vehicle to require frequent, random left and right steering wheel corrections to maintain a straight path down
a level road.
Shimmy
Shimmy, as observed by the driver, is large, consistent, rotational oscillations of the steering wheel resulting from large, side-to-side
(lateral) tire/wheel movements.
Shimmy is usually experienced near 40 miles/hour (64 km/h), and can start or be amplified when the tire contacts pot holes or irregularities
in the road surface.
Nibble
Sometimes confused with shimmy, nibble is a condition resulting from tire interaction with various road surfaces and observed by the driver
as small rotational oscillations of the steering wheel.
Poor Returnability of the Steering
Poor returnability of the steering is used to describe the poor return of the steering wheel to center after a turn or the steering correction is
completed.
Drift/Pull
Pull is a tugging sensation, felt by the hands on the steering wheel, that must be overcome to keep the vehicle going straight.
Drift describes what a vehicle with this condition does with hands off the steering wheel.
A vehicle-related drift/pull, on a flat road, will cause a consistent deviation from the straight-ahead path and require constant
steering input in the opposite direction to counteract the effect.
Drift/pull may be induced by conditions external to the vehicle (i.e., wind, road crown).
Vague On-Center Feel
Vague on-center feel is characterized by little or no build up of turning effort felt in the steering wheel as the wheel is rocked slowly left
and right within very small turns around center or straight-ahead (under 20 degrees of steering wheel turn). Efforts may be said to be "flat
on center."
In the diagnosis of a road ability problem, it is important to understand the difference between wander and vague on-center feel.
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