1998 JAGUAR X308 rear axle

22. R
elease the tie strap securing the brake caliper to the
suspension mounting bracket.

23 . Install
the brake caliper on to the carrier.
1. Position the caliper asse mbly on to the carrier.
2. Install the guide pins and tighten to 25-30 Nm.
3. Install the dust caps.
4. Install the brake caliper spring clip.

24 . Conne
ct the wheel speed sensor electrical connector.

25 . U
sing a new tie strap, secure the wheel speed sensor harness
to the brake hose clip.
26. Install the rear wheel.
For additional informat ion, refer to Section 204
-04 W
heels and
Tire
s.
27 .
Remove the
axle stands
and lower the vehicle.
For additional informat ion, refer to Section 100
-02
Jacking and
Liftin
g.

Rear
Suspension - Spring
Re
moval and Installation
Remov

al
S
pecial Tool(s)

Spri

ng Compressors
204-179 (JD 199)

Spri
ng Retaining straps
204-179-1 (JD 199-1)
1. CAUTION: Replacement of nuts and bolts: Various
thread-locking devices are used on nuts and bolts throughout the
vehicle. These devices restrict the number of times a nut or bolt
can be used.
For additional informat ion, refer to Section 100
-0
0 General
Informati

on
.
R
aise the rear of the vehicle
and support on axle stands.
For additional informat ion, refer to Section 100
-0
2 Jacking and
Liftin

g
.
2.
R
emove the relevant rear wheel.
For additional informat ion, refer to Section 204
-04
Wheels and
Tire

s
.

3. CAUTI
ON: Do not suspend the caliper from the brake
hose as this will damage the hose.
Remove the brake caliper from the carrier.
1. Remove the caliper spring clip.
2. Remove the guide pin dust caps.
3. Slacken and withdr aw the guide pins.
4. Remove the caliper from the carrier and secure to the suspension mounting bracket using a tie strap.
4. Di
sconnect the wheel speed sensor electrical connector.

28
.
Install the rear wheel.
For additional informat ion, refer to Section 204
-04
Wheels and
Tire

s
.
29
.
Remove the axle stands and lower the vehicle.
For additional informat ion, refer to Section 100
-0
2 Jacking and
Liftin

g
.
30
.
Check and adjust the rear whee l alignment as necessary.
For additional informat ion, refer to Section 204
-00
Suspension
Sy

stem
- General
Information
.

9. P
osition special tool 204-195 on hub studs and install securing
nuts.

10
.
Slacken but do not remove hub to axle shaft securing nut.
11. Remove securing nuts and withdraw special tool (204-195)
from hub.
12. Remove rear brake disc. Refer to 70.10.13.
13. Remove parking brake shoe s. Refer to 70.40.05.

14
.
Remove wheel speed sensor.
Disc
onnect wheel speed sensor harness from sensor
R

emove wheel speed sensor se
curing bolt and withdraw
sensor from hub carrier.

15
.
Sever and discard wheel speed sensor harness tie strap and
position harness for access.
16. Remove hub nut and collar.
Re
move nut.

clip
.

5. With draw parkin
g brake cable th
rough equalizer (LH side cable
only).
6. Lower four-post lift.
7. Raise rear of vehicle to workin g height and support on stands.
Refer to section 100-02.
8. Remove rear wheel. Refer to section 204-04.

9. Posit i
on special tool (204-1
95) on hub studs and install
securing nuts.

10 . Slac
ken but do not remove hub to axle shaft securing nut.
11. Remove nuts and withdraw special tool (204-195) from hub.
12. Remove rear brake disc. Refer to 70.10.13.
13. Remove parking brake shoe s. Refer to 70.40.05.
14. Remove wheel speed sensor.

cli
p.

5. With
draw parking brake cable th
rough equalizer (LH side cable
only).
6. Lower four-post lift.
7. Raise rear of vehicle to workin g height and support on stands.
Refer to section 100-02.
8. Remove rear wheel. Refer to section 204-04.

9. Posit
ion special tool (204-1
95) on hub studs and install
securing nuts.

10
.
Slacken but do not remove hub to axle shaft securing nut.
11. Remove securing nuts from stud s and withdraw special tool
(204-195) from hub.
12. Remove rear brake disc. Refer to 70.10.13.
13. Remove parking brake shoe s. Refer to 70.40.05.
14. Remove wheel speed sensor.

O
ne locking wheel nut is fitted to each road wheel and can on
ly be removed by using the correctly coded socket. For road
wheels with exposed wheel nuts, each locking wheel nut is provided with a cover, which is removed using the cover removal
tool.
Locking wheel nuts have different coded keyway combinations with corresponding coded sockets. The correct socket, and
cover removal tool are supplied with the vehicle toolkit. Sets of sockets are available to Jaguar dealers.
Temporary Spare Wheel
•
NOTE: When using this type of spare wheel note that:
Speed

must not exceed 80 km/h (50 mph).
The normal ro

ad wheel must be reinstalled as soon as possible.
On

ly one temporary wheel may be installed to the vehicle.
Tracti

on control (where fitted
) must be switched OFF.
In certain markets, the spare wheel supplied with the vehicle is of the temporary-use type, it is narrower than the normal
road wheel and takes up less room in the luggage compartment.
Tire
s
The
radial ply tires shown in the 204-04
Specification Section are recommended by Jaguar to meet the high speed
performance of the vehicle. Only tires of identical specification may be fitted as replacements. Unde r no circumstances must
cross-ply tires be fitted.
Tire Inflation Pressures
Al
l recommended tires, including winter tire
s, must be inflated to the pressures shown in the 204-04 Specification Section.
Inflation pressures must only be checked when the tires are cold.
Tire Replac
ement and Wheel-Interchanging
W
hen renewal of tires is necessary, it is
preferable to fit a complete set. If two replacement tires are fitted (to one axle),
they must be of the same manufacturer and type as those on the other axle.
No attempt must be made to interchange wh eels from the front to the rear or vice-versa, as wear produc es a characteristic
pattern on each tire depending upon its po sition on the vehicle. If this position is changed after wear has occurred, the
performance of the tire w ill be adversely affected.
It should be remembered that new tires must be balanced befo re installing to the vehicle.
Win
ter Tires
•
NOTE: Speed must not exceed 210 km/h (131 mph) when winter tires are installed.
Jaguar recommended winter tires as specified in 204-04 Specification Section must only be fitted in complete four-wheel
sets of the same type and size.
Snow Chains and Spike Spider Traction System

Jagu
ar recommended snow chains, must on
ly be installed when using 16 inch wheels with 255/60 R16 winter tires.
• NOTE: When using snow chains or the spike spider traction system, note that:
Snow ch
ains and the spike spider
traction system must only be fitted to the rear wheels.
O
nly Jaguar recommended snow chains and spik
e spider traction system must be used.
The m
aximum permissible speed with winter tires and snow chains or the spike spider traction system fitted is 48
km/h (30 mph).
Tracti
on control (where fitted) must be
switched OFF when using snow chains or the spike spider traction system.

The
Nivomat ride levelling system improves ride quality by al
lowing the use of softer road springs, while controlling the
effects on the suspension of a fully laden vehicle. The system uses special rear dampers in place of the normal units. There
are no other components in th e system. The ride levelling system is comple tely automatic, requiring no input from the
driver.
Ride levelling may be specified as an opti on on certain models; it is not available in north American markets. Ride levelling
and adaptive damping are mu tually exclusive options.
The Nivomat damper:
Su
pplements the load-carrying capacity of th
e road springs at high vehicle loads.
Uses road inputs to the
suspension to power the levelling function.
De

tects suspension height dire
ctly from road wheel travel.
Provi
des load-dependent spring rates; the ac
cumulator gas pressure increases with load.
Pr
ovides load-dependent damping; the fluid pressure increases with load.
Op

eration
F
ollowing an increase in vehicle loading,
the dampers adapt to maintain the height of the vehicle within its design range.
The system uses road inputs to the suspension to power the levelling action, and requires up to approximately two
kilometers of travel, following a change in load, to complete the process.
Normal movement of the suspension caus es a pumping action to occur within the damper, as a result of extension and
compression of the pump rod in the pump chamber. Hydraulic fluid is pumped from the pump cham ber into a high pressure
gas accumulator. The increase in gas pressure augments the force developed between th e vehicle axle and the body,
thereby providing lift.
It
em
De
scription
1Pi

ston rod
2Pum

p chamber
3High

pressure
gas accumulator
4Diaphragm
5Co
ntrol orifice
6Pump rod
7Low pressure gas ch

amber
8Low pressure oil

reservoir


Ride Levelling