Page 497 of 947

Brake Actuation System (06.06)
Brake System (06.00)
May 2007 Workshop Manual 6-6-11
11. Loosen and disconnect RH/LH brake tube union from in line connection (see Fig. 2).
12. Release brake tube from clips (x2), remove brake tube.
Installation
1. Install brake tube, connect unions, secure brake tube in clips (x2), torque tighten unions.
2. Install LH/RH front wheel arch liner (see Workshop Manual procedure 01.02.FB/01.02.GB Wheel Arch
Liner - Front - LH - Renew
3. Remove pedal support.
4. Top-up brake fluid.
5. Bleed brake Caliper with assistance.
6. Remove bleed bottle.
7. Install bleed nipple dust caps.
8. Clean off excess fluid.
9. Top-up brake fluid.
10. Install road wheel(s)).
11. Lower vehicle on ramp.
Dynamic Stability Control Module-
Renew
Removal
1. Raise vehicle on ramp.
2. Disconnect vehicle battery.
3. Remove road wheel(s).
4. Remove bleed nipple dust caps.
5. Position bleed container, connect bleed hose to LHR Caliper, open bleed nipples (x1).
6. Position bleed container, connect bleed hose to LHF Caliper, open bleed nipples (x1).
7. Depress brake pedal >60 mm and secure with support.
8. Tighten LHR bleed nipple, disconnect bleed hose, remove bleed container and fit dust cap.
9. Tighten LHF bleed nipple, disconnect bleed hose, remove bleed container and fit dust cap.
10. Remove LH front wheel arch liner (see Workshop Manual procedure 01.02.FB Wheel Arch Liner - Front -
LH - Renew).
11. Disconnect modulator multiplug.
12. Mark brake pipe unions fo r assembly purposes. Loosen
and disconnect brake pipe un ions (x6) from modulator.
Plug modulator and pipe connections.
13. Remove Torx bolts (x3) securing modulator mounting bracket to body. Remove modulator.
14. Remove Torx bolts (x3) securing modulator to mounting bracket. Collect mounting bracket from modulator.
Installation
1. Install modulator to mounting bracket, install and torque tighten Torx bolts (x3).
2. Install modulator to body, install and torque tighten Torx bolts (x3).
3. Remove plugs. Install and torque tighten brake unions (x6) to modulator.
4. Connect modulator multiplug.
Fig. 2
Repair Operation Time (ROT)
A0606128
WA R N I N G
AVOID SKIN / EYE CONTACT OR INGESTION OF
BRAKE FLUID. IF SKIN OR EYES ARE SPLASHED WITH BRAKE FLUID, RINSE THE AFFECTED AREA
IMMEDIATELY WITH PLENTY OF WATER AND OBTAIN
MEDICAL ATTENTION. IF BRAKE FLUID IS INGESTED, OBTAIN IMMEDIATE MEDICAL ATTENTION.
WA R N I N G
BRAKE FLUID IS HYGROSCOPI C. IF KEPT IN OPENED
CONTAINERS IT WILL ABSORB WATER VAPOUR. USE ONLY BRAKE FLUID FROM FRESHLY OPENED
CONTAINERS WHEN TOPPING-UP THE BRAKE FLUID RESERVOIR.
Caution
Brake fluid must not be allo wed to contact the vehicle
paint work. Remove spilt brake fluid from the paint work
by rinsing away with running water.
Caution
Always plug pipe ends to prevent ingress of dirt or moisture into the system.
Page 498 of 947
Brake Actuation System (06.06)
Brake System (06.00)
6-6-12 Workshop Manual May 2007
5. Install wheel arch liner. (see Workshop Manual procedure 01.02.FB Wheel Arch Liner - Front - LH -
Renew).
6. Bleed braking system (see Workshop Manual procedure 06.07.DD Brake Hydraulic Syst em - Flush/Refill/Bleed).
7. Install road wheel/s.
8. Lower vehicle on ramp.
Page 499 of 947
Brake Actuation System (06.06)
Brake System (06.00)
May 2007 Workshop Manual 6-6-13
Page 500 of 947
Brake Actuation System (06.06)
Brake System (06.00)
6-6-14 Workshop Manual May 2007
Page 501 of 947

Power Brake System (06.07)
Brake System (06.00)
May 2007 Workshop Manual 6-7-1
Brake System (06.00)
Power Brake System (06.07)
Brake Booster
The brake booster comprises a chamber divided by a diap hragm plate and is secured to the brake pedal housing.
As the brake pedal is pressed, a poppet valve opens allowing at mospheric pressure into the drivers side of the diaphragm.
Atmospheric pressure builds up on the drivers side of the diaphragm and pushes against the partial vacuum on the other
side. This additional force boosts the a pplied brake pedal force up to 6.5 times.
When the brake pedal is released, the poppet valve closes. The pressure on the diaphragm reduces and the compression
spring returns the diaphragm to the release position.
Emergency Brake Assist
In an emergency braking situation, a driver presses down on the brake pedal much faster than in normal braking
conditions, but often without sufficient force. The initial appli cation of the brake pedal is a reflex reaction. After the initial
application, many drivers do not brake ha rd enough because of concerns that they might cause the vehicle to skid. To aid
the driver, the panic brake assist (PBA) intervenes in bringing the vehicle to a halt, sooner and in a controlled manner, in
emergency braking situation. The PBA system monitors the speed of brake pedal activation, and at a calibrated pedal
activation speed, the PBA provides maximum brake force and makes full use of the ABS.
PBA is controlled by the ABS/DSC module, which monitors a travel sensor attached to the internal vacuum diaphragm of
the brake booster. The sensor determines the position of th e diaphragm and the speed of the diaphragm movement. If the
sensor's signal indicates an emergency braking situation, the
ABS/DSC module will open an electric solenoid on the brake booster. The solenoid directs atmospheric pressure into the
rear of the brake booster, causing the booster diaphragm to mo ve forward to fully apply the brakes. PBA takes full benefit
of ABS to stop the vehicle in a controlled manner and in the shortest distance possible. When the brake pedal is released
the ABS/DSC module instantly releases the brakes.
Page 502 of 947

Power Brake System (06.07)
Brake System (06.00)6-7-2 Workshop Manual May 2007
Specifications
Maintenance
Brake Booster-RHD-Renew
Removal
1. Remove brake master cylind er (see Workshop Manual
procedure 06.06.EB Brake Master Cylinder Assembly
Renew).
2. Remove oil dipstick.
3. Remove vacuum hose.
4. Disconnect multiplugs (x2).
5. Remove pedal cover.
6. Remove clevis pin and clip.
7. Remove servo securing nuts (x4).
8. Remove servo assembly.
9. Remove brake light switch.
Installation
1. Install brake light switch.
2. Install servo assembly.
3. Install servo retaining nuts (x4) (torque).
4. Install clevis pin and clip.
5. Install pedal cover.
6. Connect multiplugs (x2).
7. Install vacuum hose.
8. Install dipstick. 9. Install brake master cylinder (see Workshop Manual
procedure 06.06.EB Brake Master Cylinder Assembly
Renew).
Brake Booster-LHD-Renew
Removal
1. Move drivers seat fully rearward.
2. Remove clevis pin and clip.
3. Remove booster securing nuts (x4).
4. Remove corner cross brace.
5. Move expansion tank aside for access (bolt x1, nut x1,
hose clips x2, multiplug x1).
6. Remove vacuum hose move aside.
7. Remove bolts (x2) from clutch pipe bracket and move aside.
8. Disconnect clutch reservoir feed pipe.
9. Disconnect multiplugs (x4).
10. Disconnect brake pipes from master cylinder (move aside).
11. Remove booster assembly.
12. Split components.
13. Remove reservoir securing screw (for access to securing nut).
14. Remove master cylinder from booster (nuts x2).
15. Re-fit components.
16. Install master cylinder to booster (nuts x2).
17. Install reservoir securing screw.
Torque Figures
DescriptionNm.lb. / ft.
Brake Booster Mount 21-24 15.5-18
Repair Operation Time (ROT)
Repair Operation Time (ROT)
ItemCode
Brake Booster-Renew 06.07.AC
WAR NI NG
AVOID SKIN / EYE CONTACT OR INGESTION OF
BRAKE FLUID. IF SKIN OR EYES ARE SPLASHED WITH BRAKE FLUID, RINSE THE AFFECTED AREA
IMMEDIATELY WITH PLENTY OF WATER AND OBTAIN MEDICAL ATTENTION. IF BR AKE FLUID IS INGESTED,
OBTAIN IMMEDIATE MEDICAL ATTENTION.
WAR NI NG
BRAKE FLUID IS HYGROSCOPIC. IF KEPT IN OPENED CONTAINERS IT WILL ABSORB WATER VAPOUR. USE
ONLY BRAKE FLUID FROM FRESHLY OPENED
CONTAINERS WHEN TOPPING-UP THE BRAKE FLUID RESERVOIR.
Caution
Brake fluid must not be allowed to contact the vehicle
paint work. Remove spilt brake fluid from the paint work
by rinsing away with running water.
Caution
Always plug pipe ends to prevent ingress of dirt or
moisture into the system.
Caution
Always plug pipe ends to prevent ingress of dirt or
moisture into the system.
Page 503 of 947

Power Brake System (06.07)
Brake System (06.00)
May 2007 Workshop Manual 6-7-3
Installation
1. Install booster assembly.
2. Connect brake pipes to master cylinder.
3. Install bolts (x2) clutch pipe bracket.
4. Connect clutch reservoir feed pipe.
5. Connect multiplugs (x4).
6. Install vacuum hose.
7. Install expansion tank asid e (bolt x1, nut x1, hose clips
x2, multiplug x1).
8. Install corner cross brace (torque) (only fully tighten
when vehicle on level floor).
9. Install servo retaining nuts (x4) (torque).
10. Install clevis pin and clip.
11. Bleed Brakes (see Workshop Manual procedure 06.06.AD Pad Kit - Manual Brake and Clutch Pedal -
Renew).
12. Top-up coolant.
Brake Fluid Reservoir-Renew
Removal
1. Remove corner cross brace.
2. Move expansion tank aside for access (bolt x1, nut x1, hose clips x2, multiplug x1).
3. Disconnect clutch reservoir feed pipe.
4. Disconnect multiplugs (x2). 5. Disconnect brake pipes from master cylinder (move
aside).
6. Remove reservoir holding screw for access to master cylinder retaining nut.
7. Remove master cylinder from booster (nuts x2).
8. Remove reservoir from master cylinder.
Installation
1. Fit new seals and install reservoir to master cylinder.
2. Install master cylinder to booster (nuts x2).
3. Install reservoir holding screw for access to master cylinder retaining nut
4. Connect brake pipes to master cylinder.
5. Connect clutch reservoir feed pipe.
6. Connect multiplugs (x2).
7. Install expansion tank aside (bolt x1, nut x1, hose clips x2, multiplug x1).
8. Install corner cross brace (torque) (only fully tighten
when vehicle on level floor).
9. Bleed Brakes (see Workshop Manual procedure 06.07.DD Brake Hydraulic System - Flush/Refill/Bleed).
10. Top-up coolant.
Brake Bleeding - AMDS
Use the AMDS to bleed the brakes if you are bleeding the
brake system after you replaced a major component, for
example: a modulator or a mast er cylinder or when filling
from empty.
If you are bleeding a caliper, you can use a manual brake-
bleed procedure.
1. Connect the AMDS.
Repair Operation Time (ROT)
Repair Operation Time (ROT)
Page 504 of 947

Power Brake System (06.07)
Brake System (06.00)6-7-4 Workshop Manual May 2007
2. Clean each caliper around the bleed screws. Remove the dust caps.
3. Prepare a bleed tube and a bottle that contains a small quantity of clean brake fluid.
4. If necessary, top up the brake fluid reservoir with brake fluid from a new container.
5. Switch on the AMDS and load the ‘Anti-lock braking diagnostics’ software.
6. Select ‘Brake Bleed’ and follow the AMDS instructions.
Brake Master Cylinder and Vacuum
Booster-Renew
Removal
1. Move drivers seat fully rearward.
2. Remove clevis pin and clip.
3. Remove booster securing nuts (x4).
4. Remove corner cross brace.
5. Move expansion tank aside for access (bolt x1, nut x1,
hose clips x2, multiplug x1).
6. Remove vacuum hose move aside.
7. Remove bolts (x2) from clutch pipe bracket and move aside.
8. Disconnect clutch reservoir feed pipe.
9. Disconnect multiplugs (x4).
10. Disconnect brake pipes from master cylinder (move aside).
11. Remove booster assembly.
Installation
1. Install booster assembly.
2. Connect brake pipes to master cylinder.
3. Install bolts (x2) clutch pipe bracket.
4. Connect clutch reservoir feed pipe.
5. Connect multiplugs (x4).
6. Install vacuum hose.
7. Install expansion tank aside (bolt x1, nut x1, hose clips x2, multiplug x1).
8. Install corner cross brace (torque) (only fully tighten when vehicle on level floor).
9. Install servo retaining nuts (x4) (torque).
10. Install clevis pin and clip.
11. Bleed Brakes (see Workshop Manual procedure 06.07.DD Brake Hydraulic System - Flush/Refill/Bleed).
WA R N I N G
BRAKE FLUID THAT CONTAINS WATER CAN AFFECT THE PERFORMANCE OF THE BRAKES AND CAUSE CORROSION IN THE BRAKE SYSTEM.
IF YOU KEEP BRAKE FLUID IN OPEN CONTAINERS, IT WILL ABSORB WATER VAPOUR.
USE ONLY BRAKE FLUID FROM NEW CONTAINERS
WHEN YOU TOP-UP THE BRAKE FLUID RESERVOIR..
When you bleed a brake caliper, always bleed the inner bleed screw first, followed by the outer bleed screw, then bleed the inne r bleed screw again.
Repair Operation Time (ROT)
WAR NI NG
AVOID SKIN / EYE CONTACT OR INGESTION OF
BRAKE FLUID. IF SKIN OR EYES ARE SPLASHED WITH BRAKE FLUID, RINSE THE AFFECTED AREA
IMMEDIATELY WITH PLENTY OF WATER AND OBTAIN
MEDICAL ATTENTION. IF BR AKE FLUID IS INGESTED,
OBTAIN IMMEDIATE MEDICAL ATTENTION.
WAR NI NG
BRAKE FLUID IS HYGROSCOPIC. IF KEPT IN OPENED CONTAINERS IT WILL ABSORB WATER VAPOUR. USE ONLY BRAKE FLUID FROM FRESHLY OPENED
CONTAINERS WHEN TOPPING-UP THE BRAKE FLUID RESERVOIR.
Caution
Brake fluid must not be allowed to contact the vehicle
paint work. Remove spilt brake fluid from the paint work
by rinsing away with running water.
Caution
Always plug pipe ends to prevent ingress of dirt or
moisture into the system.
Caution
Always plug pipe ends to prevent ingress of dirt or
moisture into the system.