Page 55 of 281

31A-12
FRONT AXLE COMPONENTS
Front brake calliper: Repair
31A
REPAIR
I - REPAIR PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aPosition the pedal press on the brake pedal to limit
the outflow of brake fluid.
aRemove:
-the front wheel (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) ,
-the front brake calliper (see 31A, Front axle com-
ponents, Front brake calliper: Removal - Refit-
ting, page 31A-8) .II - REPAIR OPERATION FOR PART CONCERNED
aRemove the piston using compressed air, making
sure to insert a wooden block between the calliper
and the piston to avoid damaging it. Any trace of im-
pact on the end panel will render the piston unfit for
use.
aRemove the dust seal.
aRemove the rectangular section seal from the calli-
per groove with a round edged spring blade (feeler
gauge).
aClean the parts using methylated spirit. Special tooling required
Fre. 1190-01Brake calliper piston return
tool.
Equipment required
pedal press
IMPORTANT
Consult the safety and cleanliness advice and oper-
ation recommendations before carrying out any
repair (see Front axle components: Precautions
for the repair) .
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
81546
81545
WARNING
The whole calliper must systematically be
replaced if there are any scratches in the calliper
bore.
Page 102 of 281

33A-4
REAR AXLE COMPONENTS
Rear brake hose: Removal - Refitting
33A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) ).
aFit the pedal press to the brake pedal to limit the
outflow of brake fluid.
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aUndo the rigid pipe unions (1) on the rear brake hose
concerned.
aRemove the rear brake hose concerned.
REMOVAL
I - REMOVAL PREPARATION OPERATION
a
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the rear brake hose concerned,
-the rigid brake pipe unions on the rear brake hose
concerned.
aScrew on the rigid brake pipe unions on the rear
brake hose concerned without tightening them.
aTorque tighten the rigid pipe unions on the rear
brake hose concerned ( 17 Nm).
III - FINAL OPERATION.
aRemove the pedal press from the brake pedal to
limit the outflow of brake fluid.
aBleed the brake circuit (see 30A, General informa-
tion, Braking circuit: Bleed, page 30A-4) . Equipment requiredpedal press
Tightening torquesm
rigid pipe unions on the
rear brake hose con-
cerned17 Nm
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
119339
WARNING
In order to not damage the brake hose:
-do not tension the hose,
-do not twist the hose,
-check that there is no contact with the sur-
rounding components.
Page 103 of 281

33A-5
REAR AXLE COMPONENTS
Rear brake hose: Removal - Refitting
EQ UIPMENT LEVEL SPORT
33A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aPosition a pedal press on the brake pedal to limit
the outflow of brake fluid.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aUndo the brake pipe unions (1) .
aRemove:
-the brake hose clips (2) ,
-the brake hoses.
REFITTING
I - REFITTING PREPARATION OPERATION
a
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the brake hose,
-the brake hose clip.
aTighten to torque:
-the brake hose union on the master cylinder
side (13 N.m), Equipment required
pedal press
Tightening torquesm
brake hose union on the
master cylinder side13 N.m
brake hose union on the
brake calliper side13 N.m
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
119339
WARNING
In order not to damage the brake hose:
-do not tension the hose,
-do not twist the hose,
-check that there is no contact with the sur-
rounding components.
Page 105 of 281

33A-7
REAR AXLE COMPONENTS
Rear brake calliper: Removal - Refitting
EQ UIPMENT LEVEL SPORT
33A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRelease the parking brake.
aPosition a pedal press on the brake pedal to limit
the outflow of brake fluid.
aRemove the rear wheel (see 35A, Wheels and ty-
res, Wheel: Removal - Refitting, page 35A-1) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
aUnclip the parking brake cable from the brake calli-
per at (1) .
aMove aside the parking brake cable.
aLoosen the calliper brake pipe union (2) .
aRemove:
-the brake calliper guide pin bolts (3) ,
-the brake calliper from the mounting,
-the union between the brake pipe and the calliper,
-the brake calliper.
REFITTING
I - REFITTING PREPARATION OPERATION
aClean using a wire brush and BRAKE CLEANER
(see Vehicle: Parts and consumables for the re-
pair) (04B, Consumables - Products):
-the calliper supports,
-the callipers.
aAlways replace the brake calliper guide pin bolts. Special tooling required
Fre. 1190-01Brake calliper piston return
tool.
Equipment required
pedal press
Tightening torquesm
new bolts on the brake
calliper guide pins35 N.m
brake pipe union on the
calliper13 N.m
WARNING
To avoid damaging the parking brake cable protec-
tors and causing premature wear of the system, do
not handle the cables with a tool.
132468
Page 120 of 281
33A-22
REAR AXLE COMPONENTS
Rigid brake pipe: Removal - Refitting
C44
33A
The pipes have a rigid section and a flexible section.
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) ).
aFit the pedal press tool to the brake pedal to limit
the escape of brake fluid.II - OPERATION FOR REMOVAL OF PART
CONCERNED
1 - Rear left-hand rigid brake pipe
aUnscrew:
-the rigid brake pipe union at the brake hose (1) .
-the rigid brake pipe union on the rear brake cylinder
(2) .
aUnclip the rear axle rigid brake pipe (3) .
aRemove the rigid brake pipe. Equipment required
pedal press
Tightening torquesm
rigid brake pipe unions
on the rear brake cylin-
ders15 Nm
rigid brake pipe unions
on the rear brake hoses17 Nm
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
119339
119337
Page 121 of 281

33A-23
REAR AXLE COMPONENTS
Rigid brake pipe: Removal - Refitting
C44
33A
2 - Rear right-hand rigid brake pipe
aUnscrew:
-the brake pipe union (4) at the brake hose,
-the rigid brake pipe union on the rear brake cylinder
(5) .
aUnclip the rear axle rigid brake pipe (6) .
aRemove the rigid brake pipe.REFITTING
I - REFITTING PREPARATION OPERATION
aAlways replace the rigid brake pipe clips.
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit the rigid pipes in their original positions.
aClip the rigid brake pipes of the rear axle.
aFit without tightening:
-the rigid brake pipe unions on the rear brake cylin-
ders.
-the rigid brake pipe unions on the rear brake hoses.
aTighten to torque:
-the rigid brake pipe unions on the rear brake
cylinders (15 Nm),
-the rigid brake pipe unions on the rear brake
hoses (17 Nm),
III - FINAL OPERATION.
aRemove the pedal press from the brake pedal to
limit the outflow of brake fluid.
aBleed the brake circuit (see 30A, General informa-
tion, Braking circuit: Bleed, page 30A-4) .
119339
119338
WARNING
In order to not damage the brake hose:
-do not tension the hose,
-do not twist the hose,
-check that there is no contact with the sur-
rounding components.
Page 135 of 281
33A-37
REAR AXLE COMPONENTS
Complete rear axle system: Removal - Refitting
33A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) ).
aRelease the parking brake.
aFit the pedal press on the brake pedal to limit the
amount of brake fluid running out.
aRemove the rear wheels (see 35A, Wheels and ty-
res, Wheel: Removal - Refitting, page 35A-1) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
1 - Removal
aRemove:
-the heat shield clips (1) ,
-the heat shield.
aUndo the adjusting screw (2) of the parking brake
compensator.
aRemove the parking brake compensator brake ca-
bles. Special tooling required
Mot. 1390Suppor t for removal - refitting
of engine - gearbox assembly
Equipment required
pedal press
safety strap(s)
Tightening torquesm
rear axle bearing bolts62 Nm
brake hose lower unions17 Nm
119435
119436
Page 180 of 281

37A-1
MECHANICAL COMPONENT CONTROLS
Master cylinder: Removal - Refitting
JB1 or JH1 or JH3 or JR5
37A
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 - Refitting)
(80A, Battery)
-the battery tray (see Battery tray: Removal - Re-
fitting) (80A, Battery).
aRemove:
-the injection computer (see Petrol injection com-
puter: Removal - Refitting) (17B, Petrol injection),
-the injection computer support.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove the fuel filler cap from the brake fluid reser-
voir (1) .
aDisconnect the brake fluid level sensor connector (2)
.
aDrain the brake fluid reservoir with a syringe. Tightening torquesm
brake fluid reservoir bolt4 Nm
master cylinder nuts on
the brake servo25 Nm
rigid brake pipe unions
on the master cylinder15 Nm
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
K4M
121344