engine ASTON MARTIN V8 VANTAGE 2010 Workshop Manual

Anti-lock Braking System (ABS) (06.09)
Brake system (06.00)
Issue 4, November 2008 Workshop Manual 6-9-1
Brake system (06.00)
Anti-lock Braking System (ABS) (06.09)
The anti-lock braking system (ABS) is a four-channel system
having independent inputs from all four-wheel speed
sensors.
The ABS module, monitors signals from the sensors to
calculate, brake slip and the acceleration / deceleration of
individual wheels. When the brake pedal is depressed, and
the ABS module detects incipient wheel lock-up from the
incoming signals, it triggers the re-circulation pump inside
the module’s hydraulic modulator, and the solenoid valves
for the wheel(s) concerned. Brake pressure, is then
modulated to increase / decrease or remain constant at the
wheel(s) concerned until whee l lock-up is eliminated. The
ABS provides self-diagnosis and any malfunction within the
system will be indicated to the dr iver by the illumination of
the brake warning light and ‘ABS FAULT’ displayed in the
message centre right. Should a fault develop within the ABS,
the brake system will operate conventionally and with the
same standard of performanc e as a vehicle not equipped
with ABS.
Dynamic Stability Control
Dynamic Stability Control (DSC ) is a closed-loop system
designed to enhance driving safety by improving vehicle
handling when the tyres are at the limits of their grip
capabilities. This is achieved through instantaneous,
electronically controlled, reduction of engine torque and
strategic application of the brakes at individual wheels.
By using the principle that by controlling the brakes
individually it is possible, to an extent, to steer the vehicle.
This principle can be used to enhance driving safety by
correcting the vehicle’s yaw moment (turning force), when
the vehicle fails to follow th e driver’s steering inputs.
Concept
Satisfactory handling is determined according to whether a
vehicle maintains a path, wh ich accurately reflects the
driver

Anti-lock Braking System (ABS) (06.09)
Brake system (06.00)
6-9-2 Workshop Manual Issue 4, November 2008
difference between the ideal and actual response within a
tolerance band. This directly influences the forces on the
tires to generate a corrective yaw moment to reduce the side
forces of the tires where appropriate
System Overview
The DSC system embraces capabilities far beyond that of
ABS, or ABS and traction control combined, while relying on
the components of these systems. It also incorporates these
additional sensors for measur ing the vehicle’s motion and
brake system pressure:
Ya w r a t e s e n s o r - located centrally on the transmission
tunnel.
Lateral acceleration sensor - integrated with the yaw rate
sensor.
Steering angle sensor - located on the upper steering
column.
Pressure transducer - located on master cylinder.
The ABS / DSC module supports data exchange with other
vehicle electronic systems via the CAN network; the module
also enables diagnostic interrogation using WDS.
The following components register driver demand and the
ABS / DSC module processes their signals as a basis for
defining an ideal response:
PCM - position of accelerator pedal.
Brake master cylinder pressure transducer - driver’s
braking effort.
Steering angle sensor - position of steering wheel.
There are many supplementary parameters also included in
the processing calculations these include the coefficient of
friction and vehicle speed. The ABS / DSC module monitors
these factors based on signals transmitted by the sensors for:
• Wheel speed
• Lateral acceleration
• Brake pressure
• Yaw rate
Using these parameters, the function of the ABS / DSC
module is to determine the current vehicle status based on
the yaw-rate signal and the slip as estimated by the ABS /
DSC module. It then maintains the vehicle response within
a tolerance of the ‘normal’ behaviour, which is easily
controlled by the driver.
In order to generate the desired yaw behaviour the ABS /
DSC module controls the selected wheels using the ABS
hydraulic system and engine control system. In the event of
engine intervention, the ABS / DSC module calculates the
torque which should be supplied by the engine to the
wheels, and relays this request signal to the PCM which
implements the torque request.
The PCM receives signals from the DSC system via the CAN
bus and reduces engine torque as follows:
• The throttle is positioned to provide the requested engine target torque. • During the transient phase of torque reduction caused by
mechanical and combustion delays, other alternative
torque reduction methods are used to provide a quicker
response.
• The ignition is retarded and / or the fuel is cut-off at the injectors at selected cylinders.
• Ignition and fuelling are reinstated when the engine torque reaches the requested value
Operation Summary
• DSC is switched ‘ON’ when the engine is started
• When the system is operating , the DSC light in the instrument cluster will flash, at the rate of twice a second
• DSC can be switched ‘OFF / ON’ by pressing the DSC switch
• The DSC light in the instru ment cluster will illuminate
continuously when the system is switched ‘Off’.
• ‘DSC OFF’ will be displayed in the message centre right to indicate the system has been switched ‘OFF’
• A malfunction in the traction control system will be indicated to the driver by the following:
• The DSC light in the instru ment cluster will illuminate
continuously
• The message ‘DSC NOT AVAILABLE’ will be displayed in the message centre right
• If vehicle speed control is engaged it will automatically disengage when traction control is operating .
Traction Control
Traction control is a function of DSC, and is operated in
association with DSC. Traction control prevents excessive
wheel-spin at standing starts, or during acceleration. Wheel-
spin is usually caused by ex cessive use of the accelerator
pedal, or slippery, loose or bumpy road surfaces. To prevent
excessive wheel-spin and mainta in vehicle stability such
situations are overcome by the intervention of the traction
control system by:
• Braking the driven-wheel when it starts to slip
• And / or adapting the engine torque to a level corresponding to the traction available on the road
surface.
Functional Description
Traction control uses the ABS electronic and mechanical /
hydraulic hardware with additional valves to control the
braking pressure at the calipe rs. An engine interface also
enables the engine to respond to torque reduction requests
from the traction control. As with ABS, the signals from the
wheel-speed sensors are supplied to the ABS module, where
they are used to calculate the wheel-slip of the individual
wheels. Traction control intervention is initiated if the slip at
one of the wheels is excessive.

Anti-lock Braking System (ABS) (06.09)
Brake system (06.00)
Issue 4, November 2008 Workshop Manual 6-9-3
Engine Intervention
In the event of wheel-slip the ABS / DSC module calculates
the torque, which should be applied by the engine to reduce
the wheel-slip (this torque does not exceed driver demand).
Engine torque reduction is then requested from the PCM via
the CAN bus. The PCM, in response to these signals, reduces
engine torque by controlling the ignition and fuelling. A
traction control gearshift pattern is automatically selected
within the automatic transmission software whenever
traction control is active.
Brake Intervention
This function operates by increasing the pressure in the
brake caliper of the slipping wheel, by closing the separation
valve and the inlet valve of the non-slipping wheel and
running the modulator pump. This takes fluid from the fluid
reservoir via the non-actuated master cylinder and
pressurizes the brake caliper. The pressure is modulated at
the caliper via the inlet and outlet valves to achieve the
desired wheel-slip target to maximize traction.
ABS / DSC Circuit
Specifications
SR,05UR,05YR,0.5NR,0.5
WR,05NR,05
YG,05WG,05
YU,05WU,05
W,05N,05
W,0.5U,0.5R,0.5
P,0.5Y,0.5
B,0.5WG,0.5GB,0.5
B,0.5BG,0.5
GW,0.5
P,0.5
U,0.5
U,3.0
BK,1.0BK,1.0
P,0.35P,0.35P,0.35 U,3.0
WG,05YG,05
WU,05
SR,05UR,05YR,0.5NR,0.5
WG,05YG,05
WU,05
WG,05YG,05
WU,05YU,05YU,05YU,05Module-ABS
OBD2-Body (B)
Earth-Module ABSEarth-Module ABS
C1184-18C2410-6
Sensor-Brake Pressure
Sensor-Brake Pedal Travel
Sensor-Rear ABS-LH
C0746-7C0746-6
C0746-5
Switch-Brake Boost
Sensor-Yawrate / Acceleration
C2411-6C2411-5C2411-4
C2411-3
C0144-7C0144-3
C0144-2
Sensor-Front ABS-LH
Sensor-Front ABS-RH
C2410-10C2410-9
C2410-8
Sensor-Rear ABS-RH
C0746-4C0144-1C2410-7
C0877-7
K-LINESPL50-KL/FA
C0362-1C0434-1
C2444-2
SIGC2444-1
GND
C2444-3
SENSP
C2446-2
GNDC2446-1
SENSPT
C2446-3
SIG
C0501-47
GNDC0501-16
GND
C0501-2K-LINE
C0501-24
GND
C0501-31
PWM
C0501-30
NC
C0501-25
CAN HS-
C0501-28
SIGC0501-27
NO
C0501-29
CAN HS+C0501-6
CLUST_SP
C0501-17
PWR
C0501-5
GND
C0501-32BATT FEED
C0501-7
SENSPT
C0501-3 SIG
C0501-20 SIGC0501-19
GND
C0501-18 SENSP
C0501-4IGN FEED
C0501-46
F/L/GNDC0501-45
F/L/SIG
C0501-42
R/R/GNDC0501-43
R/R/SIG
C0501-36
R/L/SIG
C0501-34
F/R/SIGC0501-33
F/R/GND
C0501-1
BATT FEEDC0501-37
R/L/GND
C2448-5
C2448-3
C2448-2C2448-1
C2448-4
C1656-3 CLUS_SPC1656-2
CAN HS+C1656-1 CAN HS-
C1656-5
GND
C0516-2-C0516-1+
C0517-2
-C0517-1+
C0502-1
+
C0503-2 -C0503-1+
C0502-2 -
Sensor
Steering Angle
Sheet 61
F4
30.0 AmpsRelay 1
Underbonnet Fusebox
DIODE 1
F28
10.0 Amps
F20
30.0 Amps
F19
30.0 Amps
Earth
Steering Angle
Sensor
C0576-1
C0577-4C2608-1 VBATT
C0573-2
C0571-3
C0573-3
C0578-8SPL5-VIGN/FOR
C1672-5
VPWRC1672-8
GND
011-6-003
Oils/Greases
Brake FluidCastrol Response Super Dot 4
Torque Figures
DescriptionNm.lb. / ft.
Modulator to Bracket 5 4
Modulator / Bracket to body 9 7
Brake hose unions 17 1413
10.5
17 Nm. 17 Nm.
17 Nm.
14 Nm.
14 Nm. 14 Nm.

Manual Transmission (07.03)
Transmission (07.00)7-3-8 Workshop Manual Issue 5, January 2010
32. Install the exhaust front mount.
33. Clean the component mating faces.
34. Apply an applicable sealant to the component mating faces.
35. Install the exhaust centre pipe.
36. Install and tighten the four bolts that attach the exhaust centre pipe to the exhaust front mount.
37. Put the clamps into position on the exhaust pipes.
38. Loosely install the four bolts that attach the exhaust centre pipe to the rear silencer.
39. Align the exhaust assembly.
40. Tighten the two clamps that attach the exhaust centre pipe to the catalytic converters.
41. Install the cross brace.
Figure 24
42. Install and torque the four bolts that attach the cross brace to the rear subframe.
Figure 25
43. Remove the strap that attaches the vehicle to the lift.
44. Lower the vehicle until the wheels are 10 mm above the ground. 45. Connect the battery ground cable.
46. Start the engine.
47. Select first gear and let the wheels to turn for 10
seconds.
48. Stop the engine.
49. Lift the vehicle.
50. Remove the fill plug for the transaxle oil.
51. Make sure that the transaxle oil is level with the opening for the transaxle oil. Add more oil if necessary.
52. Install and tighten the fill plug for the transaxle oil.
53. Install the rear undertray (refer to Workshop Manual
procedure 01.02.PB - Rear Undertray).
Complete Sportshift Hydraulic Kit-Renew
Removal
1. Disconnect vehicle battery.
2. Raise vehicle on ramp and secure with straps.
3. Remove road wheel(s).
4. Remove rear exhaust silencer assembly (see Workshop Manual procedure 09.00.KA Muffler & Bypass Valve
Assembly - Remove for Access & Refit).
5. Roadster Only - Remove centre undertray (see
Workshop Manual procedure 01.02.MB Undertray -
Centre - Renew).
6. Remove bolts (x4), subframe cross brace.
7. Remove centre exhaust mounting bolts (x4).
8. Loosen clamp nuts (x2), release centre pipe from both catalysts.
9. Remove centre pipe and rear exhaust pipes as an
assembly.
WAR NI NG
THE EXHAUST CENTRE PIPE IS HEAVY. GET THE AID OF ONE MORE PERSON
TO DO THE STEP THAT FOLLOWS.
WAR NI NG
TRANSAXLE OIL CAN BE HARMFUL.
OBEY ALL TRANSAXLE OIL MANUFACTURER’S SAFETY INSTRUCTIONS WHEN YO U HANDLE COMPONENTS
THAT HAVE TOUCHED TRANSAXLE OIL.
Repair Operation Time (ROT)
ItemCode
Complete Sportshift Hydraulic Kit-
Renew 07.03.AB
WAR NI NG
ALWAYS DISCONNECT THE BATTERY EARTH (- VE)
TERMINAL FIRST.
WAR NI NG
WHEN YOU LIFT THE VEHICLE ON A 'TWO POST' LIFT MAKE SURE THAT YOU USE A STRAP TO HOLD THE REAR END OF THE VEHICLE TO THE RAMP. IF YOU
DO NOT, THE VEHICLE CAN FALL OFF THE RAMP AND CAUSE PERSONAL INJURY OR DEATH.
Caution
When using a ‘two post’ vehicle ramp, remove the
screws that secure the rear section of the wheel arch
liner to body. Hold back the rear section of the wheel
arch liner to correctly position the foot of the vehicle lift.

Manual Transmission (07.03)
Transmission (07.00)
Issue 5, January 2010 Workshop Manual 7-3-33
43. Install the tunnel reinforcement plate.
44. Install and torque the eight bolts that attach the tunnel reinforcement plate to the body.
45. Install floor heatshield.
46. Install and tighten the four bolts that attach the floor heat shield to the body.
47. Install the exhaust front mount.
48. Clean the component mating faces.
49. Apply an applicable sealant to the component mating faces.
50. Install the exhaust centre pipe.
51. Install and tighten the four bolts that attach the exhaust centre pipe to the exhaust front mount.
52. Put the clamps into position on the exhaust pipes.
53. Loosely install the four bolts that attach the exhaust centre pipe to the rear silencer.
54. Align the exhaust assembly.
55. Tighten the two clamps that attach the exhaust centre pipe to the catalytic converters.
56. Install the cross brace.
Figure 24
57. Install and torque the four bolts that attach the cross brace to the rear subframe.
Figure 25
58. Remove the strap that attaches the vehicle to the lift.
59. Lower the vehicle until the wheels are approximately 10 mm above the ground.
60. Connect the battery ground cable.
61. Bleed the clutch system.
62. Use AMDS to do an ASM self-tune.
63. Start the engine, select first gear and allow the wheels to turn for 10 seconds.
64. Lift the vehicle.
65. Remove the fill plug for the transaxle oil.
66. Make sure that the transaxle oil is level with the opening for the transaxle oil. Add more oil if necessary.
67. Install and tighten the fill plug for the transaxle oil.
68. Do a check of the ASM fluid level.
69. Install the rear undertray (refer to Workshop Procedure 01.02.PB - Rear Undertray)
Removal
1. Position vehicle on ramp.
2. Remove rear undertray (see Workshop Manual procedure 01.02.PB Undertray - Rear - Renew).
3. Position container to collect transaxle oil.
4. Remove transaxle drain plug and drain oil.
WA R N I N G
THE EXHAUST CENTRE PIPE IS HEAVY. GET THE AID
OF ONE MORE PERSON
TO DO THE STEP THAT FOLLOWS.
Repair Operation Time (ROT)

Clutch Assembly (08.01)
8-1-2 Workshop Manual May 2007
Clutch (08.00)
Clutch Assembly (08.01)
Description
The clutch assembly consists of a balanced flywheel, a clutch
driven plate and a clutch cover.
The clutch is a single plate, diaphragm spring type assembly.
A concentric clutch slave cylinder is mounted around the
first motion shaft in the torque tube bell housing.
The clutch master cylinder is mounted on the engine
bulkhead and is operated directly by the clutch pedal.
A hydraulic connection from the master cylinder feeds
pressurised fluid to the slave cylinder. The slave cylinder has
an extension tube and bleed nipple extending from the left
side of the bell housing for bleeding the system after any
major work.
Specifications
Maintenance
Clutch and Flywheel Assembly-Renew
08.00.AA
Removal
1. Disconnect vehicle battery.
2. Raise vehicle on ramp.
3. Remove torque tube assembly (see Workshop Manual procedure 05.01.CA Torque Tube Remove for Access
and Refit).
4. Remove bolts (x2) from inspection cover to lower crankcase and remove cover. 5. Install special tool SKAM14546 OT to restrain flywheel
and install and tighten bolts (x2) (see Fig. 1).
6. Remove bolts (x6) from clutch cover to flywheel (see Fig.
2).
7. Release clutch cover from dowels, remove cover and collect drive plate.
Clutch Fluid
Castrol/Girling Universal Brake and Clutch fluid.
Clutch Assembly
Clutch and flywheel are separately balanced.
Clutch Plate
Single 267mm driven plate.
Torque Figures
DescriptionNmlb/ft
Flywheel Bolts
Tighten the bolts in sequence. Loosen
the bolts and then torque, in even
stages, in the same sequence. 100 -
120
74-
88.5
Clutch Bolts
Tighten x6 equally-spaced bolts, in-
turn, to pull-down the clutch evenly.
Then torque all bolts in sequence. 65-75 48-55
Starter Motor Bolts 42.5-
57.531.5-
42.5
Repair Operation Time (ROT)
Fig. 1
Fig. 2
Warning
The clutch assembly is heavy. Ensure the clutch
assembly is supported befo re removing final bolts.



Exhaust Overview
Exhaust System (09.00)9-1-2 Workshop Manual Issue 5, January 2010
Exhaust System (09.00)
Exhaust Overview
The exhaust system consists of two four -branch manifolds, two catalytic converte rs, four oxygen sensors and a single
variable flow silencer assembly.
Exhaust gasses flow from the exhaust manifolds, through the catalysts and on to the rear silencer assembly.
• Two engine management oxygen sensors are mounted before the catalysts. • Two catalyst monitor oxygen sensors are mounted in
the catalysts between the primary and secondary
catalyst brick.
09-01-001
Four Branch Manifolds Catalytic Converter Flow Silencer
Oxygen Sensors

Silencer Assembly (09.01)
Exhaust (09.00)
Issue 5, January 2010 Workshop Manual 9-1-3
Exhaust (09.00)
Silencer Assembly (09.01)
Variable Flow Silencer Assembly
The rear silencer assembly has a variable fl ow path controlled by two bypass valves.
The system is intended to enhance top end performance in mo tor sport applications and will not operate in most normal
driving conditions.
By directing exhaust gasses through a modified path at high vehicle speeds, exhaust back pressure is reduced and top end
performance is enhanced.
As engine speed increase from idle, the bypass valve is open until the engine speed is 1500 rpm.
From 1500 rpm to 3000 rpm, the valve is closed
Above 3000 rpm the bypass valves state is load dependent (fully open at higher loads).
Maintenance
LH Catalyst & Pipe Assembly-Renew
Removal
1. Raise vehicle on ramp.
2. Remove rear exhaust silencer (refer to Workshop Manual procedure 09.00.KA Muffler & Bypass Valve
Assembly - Remove for Access & Refit).
3. Disconnect multiplugs (x2), HEGO sensors.
4. Release sensor lead from clip on heatshield.
5. Secure sufficient lengths of string to HEGO sensor multiplugs for assembly purposes.
6. Loosen LH and RH clamp nuts , catalysts to centre pipe.
7. Remove nuts (x3), catalyst to exhaust manifold.
8. With assistance, manoeuvre exhaust centre pipe assembly rearwards to release from catalysts.
9. With assistance, release and support weight of LH catalyst from exhaust manifold.
10. Manoeuvre HEGO sensor le ads and remove cable tie.
Release HEGO sensor leads from behind heat shield.
Secure cable tie. Remove string from HEGO multiplugs.
11. Remove catalyst assembly.
12. Remove and discard gasket. 13. Remove HEGO sensor
s (x2) from catalyst.
Installation
1. Clean catalyst, mating joint faces and HEGO sensors..
2. Install and tighten HEGO sensors (x2) to catalyst.
3. Apply proprietary exhaust se alant around pipe joints.
4. Install new gasket to exhaust manifold flange.
5. With assistance, position cata lyst, secure string (x2) to
HEGO multiplugs, feed sensor leads behind heat shield.
Install catalyst to exhaust manifold.
6. Install and torque tighten nuts (x3), catalyst to exhaust manifold.
7. Align centre pipe asembly to catalyst, torque tighten
clamp nuts.
8. Remove string (x2), conne ct multiplugs (x2), HEGO
sensors.
9. Secure sensor lead in clip on heatshield.
10. Install rear exhaust silencer (refer to Workshop Manual procedure 09.00.KA Muffler & Bypass Valve Assembly -
Remove for Access & Refit).
11. Lower vehicle on ramp.
RH Catalyst & Pipe Assembly-Renew
Repair Operation Time (ROT)
Repair Operation Time (ROT)

Silencer Assembly (09.01)
Exhaust (09.00)9-1-4 Workshop Manual Issue 5, January 2010
Removal
1. Raise vehicle on ramp.
2. Remove rear exhaust silencer (refer to Workshop Manual procedure 09.00.KA Muffler & Bypass Valve
Assembly - Remove for Access & Refit).
3. Disconnect multiplugs (x2), HEGO sensors.
4. Release sensor lead from clip on heatshield.
5. Secure sufficient lengths of string to HEGO sensor multiplugs for assembly purposes.
6. Loosen LH and RH clamp nuts , catalysts to centre pipe.
7. With assistance, manoeuvre exhaust centre pipe assembly rearwards to release from catalysts.
8. Remove nuts (x3), catalyst to exhaust manifold.
9. With assistance, release and support weight of RH catalyst from exhaust manifold.
10. Manoeuvre HEGO sensor leads and remove cable tie. Release HEGO sensor leads from behind heat shield.
Remove string from HEGO multiplugs.
11. Remove catalyst assembly.
12. Remove and discard gasket.
13. Remove HEGO sensors (x2) from catalyst.
Installation
1. Clean catalyst, mating joint faces and HEGO sensors..
2. Install and tighten HEGO sensors (x2) to catalyst.
3. Apply proprietary exhaust sealant around pipe joints.
4. Install new gasket to exhaust manifold flange.
5. With assistance, position catal yst, secure string (x2) to
HEGO multiplugs, feed sensor leads behind heat shield.
Secue cable tie. Install catalyst to exhaust manifold.
6. Install and torque tighten nuts (x3), catalyst to exhaust manifold.
7. Align centre pipe asembly to catalyst, torque tighten
clamp nuts.
8. Remove string (x2), connect multiplugs (x2), HEGO sensors.
9. Secure sensor lead in clip on heatshield.
10. Install rear exhaus t silencer (refer to Workshop Manual
procedure 09.00.KA Muffler & Bypass Valve Assembly -
Remove for Access & Refit).
11. Lower vehicle on ramp.
LH Exhaust Manifold-Renew-Roadster
Only
Removal
1. Disconnect vehicle battery.
2. Raise vehicle on ramp. 3. Remove heatshield deflec
tor, front floor (refer to
Workshop Manual procedure 09.04.AA Heatshield -
Front Floor - Renew).
4. Remove LH front wheel arch liner (refer to Workshop Manual procedure 01.02.FB Wheel Arch Liner - Front -
LH - Renew).
5. Remove nuts (x8), securing manifold to cylinder head.
6. Remove exhaust manifold, remove and discard gasket.
Installation
1. Clean manifold and mating face on engine. Install new gasket to engine.
2. Install manfold to engine.
3. Install nuts (x8) securing manifold to cylinder head
(torque).
4. Install LH front wheel arch liner (refer to Workshop Manual procedure 01.02.FB Wheel Arch Liner - Front -
LH - Renew).
5. Install heatshield deflector, front floor (refer to Workshop Manual procedure 09.04.AA Heatshield -
Front Floor - Renew).
6. Lower vehicle on ramp.
7. Connect vehicle battery.
Heated Exhaust Gas Oxygen (HEGO)
Sensor - Remove and Install
Removal
1. Raise the vehicle and make it safe.
2. Release the two electrical connnectors for the Heated Exhaust Gas Oxygen (HEGO) sensor from the bracket.
3. Disconnect the two electrical connnectors from the HEGO sensor.
4. Move the two wiring harnesses for the HEGO sensor away.
5. Remove the two bolts that attach the bracket to the engine.
6. Remove the bracket.
7. Remove the two bolts that attach the heat shield to the torque tube.
8. Move the heat shield away.
Repair Operation Time (ROT)
Repair Operation Time (ROT)
ItemCode
Heated Exhaust Gas Oxygen (HEGO)
Sensor - Remove and Install 09.00.DB
WAR NI NG
THE EXHAUST SYSTEM WILL BE VERY HOT AFTER
OPERATION. LET THE EXHA UST COOL BEFORE YOU
DO WORK. IF YOU DO NO T, PESONAL INJURY CAN
OCCUR.

Silencer Assembly (09.01)
Exhaust (09.00)
Issue 5, January 2010 Workshop Manual 9-1-5
9. Release the two wiring harn esses for the HEGO sensor
from the clip on the heat shield.
10. Release the HEGO sensor from the catalytic converter.
11. Install an applicable length of string to the wiring harness and the electrical connector for the HEGO sensor.
12. Use the string to put the wiring harness for the HEGO
sensor behind the heat shield.
13. Release the string from the electrical connector for the HEGO sensor.
14. Remove the HEGO sensor.
15. Clean the component mating faces.
Install
1. Put the HEGO sensor into position.
2. Attach an applicable length of string to the wiring harness for the HEGO sensor.
3. Use the string to put the wiring harness for the HEGO
sensor behind the heat shield.
4. Remove and discard the string.
5. Install the HEGO sensor into the catalytic converter.
6. Tighten the HEGO sensor.
7. Put the heat shield into position.
8. Install and tighten the two bolts that attach the heat shield to the torque tube.
9. Install the two wiring harnesses for the HEGO sensor into the clip on the heat shield.
10. Put the bracket into position.
11. Install and tighten the two bolts that attach the bracket to the engine.
12. Connect the two electrical connnectors to the HEGO
sensor.
13. Install the two electrical connnectors for the HEGO sensor into the bracket.
Silencer and Bypass Valve Assembly-
Remove for Access/Refit-Coupe Only
Removal
1. Raise vehicle on ramp.
2. Remove rear undertray (refer to Workshop Manual procedure 01.02.PB Undertray - Rear - Renew). 3. Remove Allen bolts (x4), bumper diffuser to mounting
brackets. Remove diffuser, collect securing brackets.
4. Disconnect both by-p ass valve vacuum lines.
5. Remove bolts (x4), rear exhaust pipes to silencer. Collect springs from bolts.
6. Remove bolts (x4), securing LH and RH silencer rear hanger brackets to body.
7. Remove bolts (x4), silencer front mountings to subframe.
8. Position suitable lifter to support weight of silencer. With assistance, remove silencer.
9. Remove both rear rubber mountings and hanger brackets from silencer.
Installation
1. Clean muffler and mating faces on rear pipes.
2. Position silencer on lifter. Install silencer, position rear
hangers, install and torque tighten bolts (x4).
3. Position front mountings to subframe, install and torque
tighten bolts (x4).
4. Align silencer to rear pipes, install springs (x4), install and torque tighten bolts (x4).
5. Check silencer to rear pipes for correct alignment and clearances.
6. Connect lines to both by-pass vacuum valves.
7. Position mounting brackets, install rear bumper diffuser. Install and tighten Allen bolts.
8. Install rear undertray (refer to Workshop Manual procedure 01.02.PB Undertray - Rear - Renew).
9. Lower vehicle on ramp.
Silencer and Bypass Valve Assembly-
Remove for Access/Refit-Roadster Only
Removal
1. Raise vehicle on ramp.
CAUTION
Turn the electrical harness for the HEGO sensor when
you remove the sensor in the step that follows. If you do not, the harness can be damaged.
CAUTION
Turn the electrical harness for the HEGO sensor when
you remove the sensor in the step that follows. If you do not, the harness can be damaged.
Repair Operation Time (ROT)
WA R N I N G
THE EXHAUST SYSTEM WILL BE VERY HOT AFTER
OPERATION. LET THE EXHAUST COOL BEFORE YOU DO WORK. IF YOU DO NO T, PESONAL INJURY CAN
OCCUR.
WA R N I N G
GET THE AID OF ONE MORE PERSON WHEN YOU
REMOVE THE REAR EXHAUST SILENCER.
THE SILENCER IS HEAVY .
WA R N I N G
GET THE AID OF ONE MORE PERSON WHEN YOU INSTALL THE REAR EXHAUST SILENCER.
THE SILENCER IS HEAVY .
Ensure correct alignment of exhaust pipes and silencer before tightening of fixing clamps.
Repair Operation Time (ROT)