Page 267 of 281

38C-8
ANTI-LOCK BRAKING SYSTEM
Hydraulic brake unit: Removal - Refitting
D4F, and 780, and LEFT-HAND DRIVE – K4M, and LEFT-HAND DRIVE
38C
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aDisconnect the battery (see Battery: Removal - Re-
fitting) (80A, Battery).
aPosition the pedal press on the brake pedal to limit
the outflow of brake fluid.
aRemove:
-the passenger side front wheel (see 35A, Wheels
and tyres, Wheel: Removal - Refitting, page
35A-1) ,
-the front wheel arch liner (see Front wheel arch
liner: Removal - Refitting) (55A, Exterior protec-
tion).
aRemove the air filter housing (see Air filter unit: Re-
moval - Refitting) (12A, Fuel mixture).aDisconnect the fuel vapour rebreathing solenoid
valve union (1) .
aRemove the fuel vapour rebreathing solenoid valve
(2) .
aRemove the bolts (3) from the bulkhead heat shield.
aMove the bulkhead heat shield (4) to one side. Equipment required
pedal press
refrigerant charging station
Tightening torquesm
hydraulic unit bolts on
its inter mediate bracket8 Nm
intermediate bracket
bolts on the hydraulic
unit main bracket8 N.m
hydraulic unit main
mounting bolts on the
body8 Nm
rigid brake pipe unions
on the hydraulic unit13 Nm
D4F, and 780
109625
122384
Page 271 of 281

38C-12
ANTI-LOCK BRAKING SYSTEM
Hydraulic brake unit: Removal - Refitting
RIGHT-HAND DRIVE
38C
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the battery (see Battery: Removal - Refit-
ting) (80A, Battery).aRemove:
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the battery tray (see Battery tray: Removal - Re-
fitting) (80A, Battery),
-the bolts (1) from the secondary brake fluid reser-
voir.
aMove aside the secondary brake fluid reservoir.
aRemove:
-the petrol injection computer (see Petrol injection
computer: Removal - Refitting) (17B, Petrol in-
jection),
-the computer mounting bolts,
-the computer bracket. Tightening torquesm
hydraulic unit bolts on
its inter mediate bracket8 Nm
hydraulic unit inter medi-
ate bracket bolts on the
main hydraulic unit
bracket8 Nm
hydraulic unit main
mounting bolts on the
body8 Nm
rigid brake pipe unions
on the hydraulic unit14 Nm
secondar y brake fluid
reservoir bolts8 Nm
123854
K4M
Page 273 of 281

38C-14
ANTI-LOCK BRAKING SYSTEM
Hydraulic brake unit: Removal - Refitting
RIGHT-HAND DRIVE
38C
aRemove:
-the hydraulic assembly intermediate bracket bolts
(5) ,
-the “hydraulic unit intermediate bracket - hydraulic
unit” assembly (6) from the main bracket,
-the hydraulic unit bolts (7) ,
-the hydraulic unit from its intermediate bracket.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aRefit the hydraulic unit on its support.
aTorque tighten the hydraulic unit bolts on its inter-
mediate bracket (8 Nm).
aRefit the "hydraulic unit intermediate bracket - hy-
draulic unit" assembly on the main bracket.
aTorque tighten the hydraulic unit intermediate
bracket bolts on the main hydraulic unit bracket
(8 Nm).
aRefit the "hydraulic unit main bracket - hydraulic
brake unit" assembly on the body.
aTorque tighten the hydraulic unit main mounting
bolts on the body (8 Nm).
aRefit the rigid brake pipe unions on the hydraulic
unit.
aTorque tighten the rigid brake pipe unions on the
hydraulic unit (14 Nm).aConnect the braking hydraulic unit connector.
II - FINAL OPERATION.
aRefit:
-the computer bracket.
-the petrol injection computer (see Petrol injection
computer: Removal - Refitting) (17B, Petrol in-
jection).
aFit the secondary brake fluid reservoir.
aTorque tighten the secondary brake fluid reser-
voir bolts ( 8 Nm).
aRefit:
-the battery tray (see Battery tray: Removal - Re-
fitting) (80A, Battery),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment).
aRefit the battery (see Battery: Removal - Refitting)
(80A, Battery).
aBleed the brake circuit (see 30A, General informa-
tion, Braking circuit: Bleed, page 30A-4) .
121456
K4M