1999 LAND ROVER DISCOVERY transmission

AUTOMATIC GEARBOX - ZF4HP22 - 24
REPAIRS 44-43
Pump - fluid
$% 44.32.01
Remove
1.Remove intermediate plate gasket.

+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gasket - intermediate plate.
2.Remove 8 bolts securing fluid pump to
intermediate plate and carefully remove pump
from intermediate plate.
3.Note position and remove pump locating dowel.
4.Remove and discard 'O' ring from pump
housing.Refit
1.Clean pump housing and mating face on
intermediate plate with lint free cloth.
2.Lubricate new 'O' ring with transmission fluid
and fit to pump housing.
3.Position pump locating dowel into intermediate
plate.
4.Align fluid pump to dowel and position in
intermediate plate.
5.Fit bolts and tighten in a diagonal sequence to
10 Nm (7 lbf.ft)
6.Position LRT-44-003/1 into pump and check
that the pump rotors turn freely.
7.Fit intermediate plate gasket.

+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gasket - intermediate plate.
M44 1336
M44 1341
M44 1342
LRT-44-003/1

AUTOMATIC GEARBOX - ZF4HP22 - 24
44-44 REPAIRS
Seal - rear extension housing
$% 44.20.18
Remove
1.Remove transfer box

+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - Diesel.

+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.
2.Drain automatic gearbox oil.

+ MAINTENANCE, PROCEDURES,
Automatic gearbox.
3.Remove rear extension housing oil seal from
gearbox. Refit
1.Clean oil seal recess in gearbox and running
surface on input shaft.
2.Lubricate oil seal running surface with
transmission oil.
3.Using tool LRT-44-001 fit oil seal to extension
housing.
4.Fit transfer box

+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - Diesel.

+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.
5.Fill automatic gearbox with oil.

+ MAINTENANCE, PROCEDURES,
Automatic gearbox.

AUTOMATIC GEARBOX - ZF4HP22 - 24
44-58 REPAIRS
Electronic control unit - automatic
transmission
$% 44.15.46
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery earth lead.
3.Remove 3 screws and trim clip securing lower
trim casing to LH front seat.
4.Remove 3 nuts securing speaker power
amplifier bracket to the body.
5.Disconnect multiplug from automatic
transmission ECU located on underside of
amplifier mounting bracket.6.Remove 2 nuts securing ECU to mounting
bracket and remove ECU.
Refit
1.Position ECU to mounting bracket and secure
with nuts.
2.Connect multiplug to ECU.
3.Position speaker power amplifier mounting
bracket to body and secure with nuts.
4.Position lower trim casing to seat and secure
with screws and trim clip.
5.Connect battery earth lead.
6.Fit battery cover and secure fixings.

PROPELLER SHAFTS
47-2 DESCRIPTION AND OPERATION
Description
General
Front and rear propeller shafts transmit the drive from the transfer box to the axles.
On vehicles from 03 model year fitted with the 4.6l V8 engine and 4HP24 transmission, the front propeller shaft is 15
mm (0.6 in) longer and the rear propeller shaft is 15mm (0.6 in) shorter than those used on vehicles with the 4.0l V8
and Td5 engines. This is to accomodate an increase in length of the 4HP24 transmission.

BRAKES
DESCRIPTION AND OPERATION 70-3
1ABS sensor
2ABS modulator
3Return pump relay
4SLABS ECU
5Brake lamp relay
6Centre high mounted stop lamp
7LH brake lamp
8RH brake lamp
9Instrument pack10Body control unit
11Reverse lamp switch (manual gearbox)
12Diagnostic socket
13HDC switch
14Transmission high/low switch
15Centre differential lock switch
16Engine control module
17Battery power supply
18Ignition power supply

BRAKES
DESCRIPTION AND OPERATION 70-25
DESCRIPTION AND OPERAT ION
Handbrake component layout
1Warning switch
2Handbrake lever
3Cable
4Protective sleeve
5Drum brake6'C' clip
7Threaded sleeve
8Adjuster wheel
9Base plate
10Transmission tunnel

BRAKES
70-26 DESCRIPTION AND OPERATION
Description
General
The handbrake consists of a drum brake, installed on the rear of the transfer box, operated by a cable connected to
a handbrake lever between the front seats.
Handbrake lever
The handbrake lever is mounted on a base plate which attaches to the transmission tunnel. A conventional ratchet
and thumb operated release button are incorporated for locking and unlocking the lever. A warning switch on the base
of the lever operates the brake warning lamp in the instrument pack. While the handbrake is applied the warning
switch connects an earth to the instrument pack which, if the ignition is on, illuminates the brake warning lamp. In
some markets, the instrument pack performs a bulb check of the brake warning lamp each time the ignition is switched
on.
Cable
The handbrake cable consists of inner and outer cables installed between the handbrake lever and the drum brake.
A protective sleeve is installed on the cable to protect the cable from heat from the exhaust system. Handbrake
adjustment is provided by a threaded sleeve installed on the outer cable where it locates in the handbrake lever.
Turning an adjuster wheel, which is keyed to the threaded sleeve and secured by a 'C' clip, alters the effective length
of the outer sleeve and consequently changes the handbrake lever movement needed to apply the drum brake.

BRAKES
70-36 REPAIRS
Cable - handbrake
$% 70.35.25
Remove
1.Remove centre console.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Console - centre - automatic
models.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Console - centre - manual
models.
2.Remove clip and clevis pin securing cable to
hand brake lever.
3.Remove brake shoes from hand brake
assembly.

+ BRAKES, REPAIRS, Brake shoes -
handbrake.
4.From below the vehicle, pull handbrake cable
through transmission tunnel.
5.Release handbrake cable from backplate. Refit
1.Fit and secure handbrake cable to backplate.
2.Position hand brake cable through
transmission tunnel.
3.Fit brake shoes to hand brake assembly.

+ BRAKES, REPAIRS, Brake shoes -
handbrake.
4.Align cable to hand brake lever and secure with
clip and clevis pin.
5.Fit centre console.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Console - centre - automatic
models.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Console - centre - manual
models.
6.Adjust handbrake.

+ BRAKES, ADJUSTMENTS,
Handbrake.