ECU JAGUAR X308 1998 2.G Workshop Manual

Hydraulic B
rake Actuation
- Brake Master Cylinder
Re
moval and Installation
Remov

al
• C
AUTIONS:
Replacement of nuts and bolts: Various thread-locking de vices are used on nuts and bolts throughout the vehicle.
These devices restrict the number of times a nut or bolt can be used. See section 100-00 for information.
Remove brake fluid spilla ge immediately from paint work, with clean water.
1. Position vehi
cle on a four-post lift.
2. Open engine compartment and fit paint work protection covers
to fenders.
3. Disconnect battery ground cable (IMPORTANT, refer to
operation 86.15.19 for fu rther information).
4. Remove engine compartment rear cover. Refer to operation
76.11.35.
5. Remove pedal housing, brake booster and master cylinder
assembly. Refer to operation 70.35.39.
6. Place assembly on a work bench.

7. R
emove nuts securing master cylinder to brake booster.

8. R
emove master cylinder from brake booster.
Re

move master cylinder.
Remove an

d discard seal.
9. Remove filler cap and empty residual brake fluid into a
container. Fit cap.
10. Remove fluid reservoir from master cylinder.
R
emove locating pin.
Pull

reservoir from master cylinder.

2
. Align return spring.
3. Install pivot pins.
4. Install retaining wire: bend ends of wire to secure
pivot pins.

3. Inst
all brake warning-light switch.
Inst

all switch onto locating tag.
Install and tigh

ten nut and bolt to 3Nm.
4. Install brake booster and master cylinder assembly. Refer to
operation 70.50.18.
5. Install pedal housing, brake booster and master cylinder
assembly. Refer to operation 70.35.39.
6. Bleed brake system. Refer to operation 70.25.03.
7. Install engine compartment rear cover. Refer to operation
76.11.35.
8. Connect battery ground cable. (IMPORTANT, see 86.15.19 for
further information).

Power Brake Actuatio
n - Brake Booster
Re
moval and Installation
Remov

al
• C
AUTIONS:
Replacement of nuts and bolts: Various thread-locking de vices are used on nuts and bolts throughout the vehicle.
These devices restrict the number of times a nut or bolt can be used. See section 100-00 for information.
Remove brake fluid spilla ge immediately from paint work, with clean water.
I
nstallation
1.
Position vehi
cle on a four-post lift.
2. Open engine compartment and fit paint work protection covers
to fenders.
3. Disconnect battery ground cable (IMPORTANT, see operation
86.15.19 for further information).
4. Remove engine compartment rear cover. Refer to operation
76.11.35.
5. Remove pedal housing, brake booster and master cylinder
assembly. Refer to operation 70.35.39.
6. Remove brake booster and master cylinder assembly. Refer to
operation 70.50.18.

7. R
emove nuts securing master cylinder to brake booster.

8. R
emove master cylinder from brake booster.
Re

move master cylinder.
Remove an

d discard seal.
9. Remove filler cap and empty residual brake fluid into a
container.
10. Clean components and mating surfaces.
1. Install master cylinder to brake booster.
Inst
all seal to master cylinder.

Power Brake Actuatio
n - Brake Boos
ter and Brake Master Cylinder
Re
moval and Installation
Remov

al
• C
AUTIONS:
Replacement of nuts and bolts: Various thread-locking de vices are used on nuts and bolts throughout the vehicle.
These devices restrict the number of times a nut or bolt can be used. See section 100-00 for information.
Remove brake fluid spilla ge immediately from paint work, with clean water.
1. Position vehi
cle on a four-post lift.
2. Move driver's seat fully rearward.
3. Open engine compartment and fit paint work protection covers
to fenders.
4. Disconnect battery ground cable (IMPORTANT, see operation
86.15.19 for further information).
5. Remove engine compartment rear cover. Refer to operation
76.11.35.
6. Remove pedal housing, brake booster and master cylinder
assembly. Refer to operation 70.35.39.
7. Remove reservoir filler cap and po ur residual brake fluid into a
container. Refit cap.

8. R
emove the clevis pin connecting the brake pedal to the
master cylinder push-rod fork.
1. Remove grommets from access holes.
2. Remove retaining clip.
3. Remove clevis pin.

9. Re
position the brake pedal to access the nuts securing the
brake booster to the pedal housing.
1. Remove pivot pin nut.
2. Remove pivot pin.
Reposition brake pedal.
10
.
Remove brake booster from pedal housing.
1. Remove grommet from access hole.
2. Remove nuts.

Apply grease to
brake pedal pivots.
Position brake pedal.

3. Install brake pedal hou
s
ing to brake booster.
Wh
en installing brake booster,
make sure push-rod locates
inside brake pedal shaft.
1. Install and tighten nuts to 22-28 Nm.
2. Install grommet.

4. Install
final securing nut.
Tigh

ten nut to 22-28 Nm.

5. Install brake pedal to pedal h
ousing.
Install piv

ot pin.
Install nu

t and tighten to 17-23 Nm.

6. Inst
all clevis pin connecting
the brake pedal to the master
cylinder push-rod fork.
Apply grease to
the clevis pin.
1. Install clevis pin.
2. Install retaining clip.
3. Install grommets.
7. Install pedal housing, brake booster and master cylinder
assembly. Refer to operation 70.35.39.
8. Install engine compartment rear cover. Refer to operation
76.11.35.

Anti-Lock Control - Wheel Speed Se
nsor Ring
Re
mo
val and Installation
Remov
a
l
CAUTI
O
N: 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. See section 100-00 for information.
S p
ecial Tool(s)

Hub Holdin
g Tool
2
04-195 (JD 227)

ABS Rotor Nut Socket
2
06-
066A
1.
Op
en engine compartment and
fit paintwork protectors to
fenders.
2. Raise front of vehicle and support on stands. Refer to section
100-02.
3. Remove front wheel. Re fer to section 204-04.
4. Remove front brake disc. Refer to operation 70.10.12.
5. Remove vertical link and hub assembly. Refer to operation
60.25.38.90.

6. Re
move brake-disc shield from vertical link.
1. Remove screws.
2. Remove disc shield.
7. Using special tool, secure vertical link and hub assembly in a
vice.
Secure special tool
in a vice.
Posit
i
on hub in tool.
Fit and

tighten wheel nuts.

Steering System - General Information - Power Steeri
ng System Flushing
Gen
e
ral Procedures
• NOTE: If heavy steering or contamination within the power steering system is found, it is necessary to carry out the
system flush procedure as detailed below. If any components have been replaced in the power steering system the
procedure below must be carried out in full.
• NOTE: Some variation in the illustrations may occur, but the essential information is always correct.
1. Remove the power steering fluid reservoir cap.
2. Using a suitable syringe, remove the power steering fluid from
the power steering fluid reservoir.

3. CAUTIO
N: Be prepared to
collect escaping fluids.
• NOTE: Note the orientation of the clip. Detach the power steeri ng fluid reservoir.
De
tach but do not remove the power steering fluid
reservoir.
Re lea
se the power steering fluid return hose from the
power steering fluid reservoir.
If a qui
ck release coupling is fitted to the power
steering return ho se, release the powe r steering fluid
return hose from the coupling by removing the clip.

4. CAUTIO
N: Be prepared to
collect escaping fluids.
• NOTE: Make sure that all openings are sealed. Use new
blanking caps.
Using a suitable blanking cap, cap the power steering
reservoir return pipe.
5. CAUTIO
N: Be prepared to
collect escaping fluids.
• NOTE: Make sure the extended pipe is not kinked or twisted
and is correctly secure d with hose clips.
Attach a suitable pipe to the power steering return hose to
allow the fluid to drain.

P a
rts List
The supply and return pipes are secured to the hydraulic control valve housing by a latch-plate having a single fixing screw.
The latch-plate is captive to the supply pipe. Each pipe has an O-ri ng which is a serviceable item.
In-Line Quick-Fit Connector

Parts List

Ite
m
Par
t
Number
De
scr
iption
1—Return
pipe (RH drive)
2—Supply pipe (RH
drive)
3—Latc
h-plate
4—Latch-
plate securing screw
It
e
m
Par
t
Number
De
scr
iption
1—Qu
ic
k-fit connector
2—Return
pipe

Latch
-Plate Location

Steering Column -
Torques



Comp

onent
Nm
Upper
steering column upp
er fixings
22
-
28
S
t
eering wheel to column securing bolt
34
-
46
Upper
bracket
to body screws
22
-
28
Upper
steering colu mn lower fi
xings
17
-
23
Lower steeri
ng col
umn pinch bolts (upper and lower)
28
-
34
U
pper
and lower cowl securing screws
1.
5 (
nominal)
D
river ai
r bag fixings
4 -
5
Colum
n switchgear to column
4 -
5

Steering Column Switches -
Torques



Comp

onent
Nm
Swit
ch
gear securing screws
4 -
5
Steeri ng column upper and
l
ower cowl securing screws
1.
5 (
nominal)