traction control ASTON MARTIN V8 VANTAGE 2010 Workshop Manual

Issue 6, May 2010 Workshop Manual 1-1-1
Suspension (04.00)
Contents
Road Wheel Alignment (04.00) ............................. 4-0-2Specifications ......................................................... 0-2
Maintenance ........................................................... 0-2All Wheel Alignment .............................................. 0-2
Front Suspension (04.01)....................................... 4-1-1 Description ............................................................. 1-1Suspension Arms .................................................... 1-1
Anti-roll Bar ........................................................... 1-1
Vertical link............................................................ 1-1
Specifications.......................................................... 1-1
Symptoms ............................................................... 1-2
Maintenance ........................................................... 1-3 RH/LH Front Hub and Bearing Assembly
- Renew ................................................................. 1-3
RH/LH Lower Front Suspension Arm Assembly
- Renew ................................................................. 1-4
RH/LH Upper Front Suspension Arm Assembly
- Renew ................................................................. 1-4
Front Anti-Roll Bar - Renew ................................... 1-5
Front Pair Anti-Roll Bar Bushing - Renew................ 1-5
RH/LH Front Anti-Roll Bar Link - Renew ................ 1-5
RH/LH Front Hub Vertical Link - Renew ................ 1-6
Front Suspension Sensor Assembly-Renew ............. 1-7
Rear Suspension (04.02) ........................................ 4-2-1 Description ............................................................. 2-1Suspension Arms .................................................... 2-1
Anti-roll Bar ........................................................... 2-1
Vertical Link........................................................... 2-1
Specifications.......................................................... 2-2
Maintenance ........................................................... 2-2 RH/LH Rear Hub and Bearin g Assembly-Renew ..... 2-2
RH/LH Rear Lower Arm Assembly-Renew .............. 2-2
RH/LH Upper Rear Arm Assembly-Renew .............. 2-3
RH/LH Toe Control Rear Arm Assembly-Renew ..... 2-3
Rear Anti-Roll Bar-Renew ...................................... 2-3
Rear Pair-Anti-Roll Bar Bushing-Renew .................. 2-4
RH/LH Rear Anti-Roll Bar Link-Renew ................... 2-4
RH/LH Rear Hub Vertical Link-Renew.................... 2-4
Rear Suspension Sensor Assembly-Renew .............. 2-5
Shock Absorber System (04.03) ............................. 4-3-1 Description ............................................................. 3-1
Specifications.......................................................... 3-1
Maintenance ........................................................... 3-1Front Spring and Damper Assembly-Pair-Renew .... 3-1
Front Spring-Pair-Renew ........................................ 3-3
Front Damper-Pair-Renew ..................................... 3-4
Rear Spring and Damper Assembly-Pair-Renew...... 3-5
Rear Spring-Pair-Renew ......................................... 3-7
Rear Damper-Pair-Renew ...................................... 3-9
Road Wheels and Tyres (04.04)............................. 4-4-1 Specifications.......................................................... 4-1USA Tyre Gradings................................................. 4-2
Tread Wear ........................................................... 4-2
Traction ................................................................. 4-2 Temperature .......................................................... 4-2
Maintenance ........................................................... 4-3 Safety .................................................................... 4-3
Tyre Replacement and Wheel Interchanging ......... 4-3
Winter (Snow) tyres ................................................ 4-4 Recommended Winter Wheel and
Tyre Combination .................................................. 4-4
Inspection and Verification . ................................... 4-4
Tyre Wear ............................................................. 4-4
Tyre Damage ......................................................... 4-6
Repairs .................................................................. 4-7
Care of Alloy Road Wheels .................................... 4-7
Road Wheel Alignment .......................................... 4-7
Road Wheel and Tyre Balance ............................... 4-8
Torque Tightening of Road Wheel Nuts ................ 4-8
Tyre Pressure Sensing (Option).............................. 4-9 Pressure Sensing with Wint er Wheels and Tyres ..... 4-9
Warnings ............................................................... 4-9
Display Unit ........................................................ 4-10
System Programming ........................................... 4-10

Road Wheels and Tyres (04.04)
Suspension (04.00)4-4-2 Workshop Manual May 2007
USA Tyre Gradings
The following information relates to the tyre grading system
developed by the National Highway Traffic Safety
Administration which grades tyres by tread wear, traction
and temperature performance.
Tr e a d W e a r
Tread wear grade is a comparat ive rating based on the wear
rate of the tyre when tested under controlled conditions
(specified government test course). For example, a tyre
graded 150 would wear one and a half times less on the
government course than a tyre graded 100. Relative
performance of the tyres depends upon actual conditions of
use and may depart significantly from normal due to
variations in driving habits, service practices and differences
in road characteristics and climate.
Tr a c t i o n
Traction grades, A (highest), B and C represent a tyre’s ability
to stop in wet conditions measured on specified government
test surfaces of asphalt and concrete.
Te m p e r a t u r e
Temperature grades, A (highest), B and C, represent a tyre’s
resistance to the generation of wear and its ability to
dissipate heat when tested under controlled conditions
(specified indoor laboratory test road wheel). Sustained high
temperature can cause the material of a tyre to degenerate
and reduce tyre life; excessive temperatures can lead to
sudden tyre failure. Grade ‘C’ corresponds to a level of
performance which all passenger vehicle tyres must meet
under Federal Motor Vehicle Safety Standard No. 109.
Grades ‘B’ and ‘A’ represent higher levels of performance
than the minimum required by law. Aston Martin grade as follows:
Torque Figures
DescriptionNmlb/ft
Road wheel nuts:
Step 1 for all Wheel Nuts 80 60
Step 2 for 22 mm Wheel Nuts 135 100
Step 2 for Titanium Wheel Nuts 150 111
Step 2 for 21 mm Wheel Nuts 180 133
WAR NI NG
PDI INSPECTION.
TRACTION GRADE IS BASED ON BRAKING (STRAIGHT AHEAD) TRACTION TESTS AND DOES NOT INCLUDE
CORNERING (TURNING) TRACTION.
WAR NI NG
TEMPERATURE GRADE IS ESTABLISHED FOR A TYRE THAT IS PROPERLY INFLATED AND NOT
OVERLOADED. EXCESSIVE SPEED, UNDER INFLATION
OR EXCESSIVE LOADING, WHETHER SEPARATELY OR
IN COMBINATION, CAN CAUSE HEAT BUILD-UP AND POSSIBLE TYRE FAILURE.
Tyre Grade Level Achieved
Tread Wear 140 Traction A
Temperature A

Road Wheels and Tyres (04.04)
Suspension (04.00)4-4-4 Workshop Manual May 2007
Winter (Snow) tyres
Winter tyres must only be installed in complete four-wheel
sets of the same type. The maximum speed with winter tyres
installed (without snow chains) is 210 km/h (131 mile/h) for
H rated tyres or 240 km/h (149 mile/h) for V rated tyres.
When using snow chains, note that:
• Snow chains must only be installed to the rear wheels
• Only Aston Martin snow chains should be used
• Snow chains must not be used on roads which are clear of snow
• The maximum speed with winter tyres and snow chains fitted is 48 km/h (30 mile/h)
• Traction control must be switched Off when using snow chains
Recommended Winter Wheel and Tyre
Combination
Unique Aston Martin lightweight aluminium alloy road
wheels.
Wheels
• Front - 8.5J x 18
• Rear - 9.5J x 18
Tyres
Pirelli 240 Snowsport
• Front - 225/45 R18 (95V)

Version 6, March 2010 Workshop Manual 6-3-1
Brake System (06.00)
Contents
Front Disc Brake (06.03)........................................ 6-3-2Description ............................................................. 3-2
Specifications.......................................................... 3-2
Maintenance ........................................................... 3-3Front Brake Disc Set - Renew ................................. 3-3
Front Caliper-Renew .............................................. 3-4
Front Pad Kit - Renew ............................................ 3-5
Front Brake Hose Assembly - Renew ...................... 3-5
Rear Disc Brakes (06.04) ....................................... 6-4-1 Description ............................................................. 4-1
Specifications.......................................................... 4-1
Maintenance ........................................................... 4-2Rear Brake Disc Set-Renew .................................... 4-2
RH/LH Rear Caliper-Renew ................................... 4-2
Rear Pad Kit-Renew ............................................... 4-3
Rear Brake Hose Assembly-Renew ......................... 4-4
Hand Brake (06.05) ................ ............................... 6-5-1
Description ............................................................. 5-1
Specifications.......................................................... 5-1
Maintenance ........................................................... 5-2 RH/LH Handbrake Caliper-Re new ......................... 5-2
Handbrake Lever Assembly-Renew ........................ 5-2
Handbrake Pad Set-Renew .................................... 5-2
Handbrake Cable Assembly-Adjust......................... 5-3
Handbrake Cable Assembly-Vehicle Set-Renew ..... 5-3
Brake Actuation System (06.06)............................. 6-6-1 Description ............................................................. 6-1
Tandem Master Cylinder ........................................ 6-1
Specifications.......................................................... 6-1
Maintenance ........................................................... 6-2Pedal Box Assembly - Renew ................................. 6-2
Installation ............................................................. 6-2
RHD-Brake Master Cylinder Assembly-Renew........ 6-2
LHD-Brake Master Cylinder Assembly-Renew ........ 6-3
Clutch Master Cylinder Assembly-Renew ............... 6-3
RH/LH Front Caliper Hose Assembly-Renew .......... 6-4
RH/LH Rear Brake Caliper Tube Assembly-Renew . 6-5
Brake Master Cylinder to Modulator Secondary
Tube Assembly-Renew ........................................... 6-6
Brake Master Cylinder to Modulator Primary
Tube Assembly-Renew ........................................... 6-7
Rear Wheel Brake Front to Rear Tube Assembly
-Renew .................................................................. 6-8
RH Front Caliper to Modulator Tube Assembly
-Renew .................................................................. 6-9
Rear Wheel Brake Tube Assembly-Renew ............ 6-10
Dynamic Stability Control Module-Renew............ 6-11
Power Brake System (06.07) .................................. 6-7-1 Brake Booster ......................................................... 7-1
Emergency Brake Assist .......................................... 7-1
Specifications.......................................................... 7-2
Maintenance ........................................................... 7-2Brake Booster-RHD-Renew.................................... 7-2
Brake Booster-LHD-Renew .................................... 7-2 Brake Fluid Reservoir-Renew ................................. 7-3
Brake Bleeding - AMDS ......................................... 7-3
Brake Master Cylinder and Vacuum Booster
-Renew .................................................................. 7-4
Brake Master Cylinder-Renew ................................ 7-5
Anti-lock Braking System (ABS) (06.09)................. 6-9-1 Dynamic Stability Control ...................................... 9-1Concept ................................................................ 9-1
System Overview ................................................... 9-2
Operation Summary .............................................. 9-2
Traction Control ..................................................... 9-2 Functional Description ........................................... 9-2
Engine Intervention ................................................ 9-3
Brake Intervention ................................................. 9-3
ABS / DSC Circuit .................................................. 9-3
Specifications ......................................................... 9-3 Maintenance ......................................................... 9-4
ABS Modulator - Remove and Install ...................... 9-4

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.

Body Ventilation system (12.01)
Climate Control (12.00)12-1-2 Workshop Manual May 2007
Climate Control (12.00)
Body Ventilation (12.01)
Air Intake & Distribution System
Outside air enters the plenum via inlets at the base of the
windscreen.
Fresh mode - Air is drawn in through the plenum and into
the blower unit. From the blower unit air enters the A/C unit
where it is cooled and dehumidified as it passes through the
evaporator. It is then ‘reheated’ to the selected temperature
as it passes through the heater matrix,. Air flows from the cabin into th
e boot via air vent grilles and
through apertures in the rear parcel shelf. The air is
exhausted from the vehicle through extraction vent
assemblies (incorporating one way flaps) in the lower part of
the rear bumpers, concealed by the bumper trim.
Recirculation mode - The air in the passenger
compartment is drawn into the A/C system via the re-
circulation air inlets on the blower unit.
The A/C unit is linked and sealed to the defrost / demisting and cabin air ducting assemblies. The A/C unit incorporates
two actuator operated flaps which regulate airflow to the selected air flow mode and temperature blend.
The centre vent duct incorporates a baffle plate which balances the volume of airflow of the centre and end of dash vents.

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Vehicle Control System (18.08)
Electric Distribution/Electronic Control (18.00)
18-2-2 Workshop Manual May 2007
Module Locations
1A Central Electronic Module (CEM) LH D15BInstrument Cluster Module LHD
1B Central Electronic Module (CEM) RH D 16 Navigation Display Module RHD/LHD
2A Driver’s Door Module RHD 17 Yaw Rate Sensor Module RHD/LHD
2B Driver’s Door Module LHD 1 8Restraint Module RHD/LHD
3A Passenger Door Module LHD 19 AM/FM Tuner Module RHD/LHD
3B Passenger Door Module RHD 20 Traffic Messaging Channel (TMC) Module RHD/
LHD
4 Fuel Pump Module RHD/LHD 21 GPS Tuner Module RHD/LHD
5 Parking Aid Module RHD/LHD 22 Amplifier Module RHD/LHD
6 Remote Key Entry Module RHD/LH D23Amplifier Module RHD/LHD
7 Security Microwave RHD/LHD 24A Powe rtrain Control Module (PCM) LHD
8A Tyre Pressure Monitor Module LHD 24B Powertrain Control Module (PCM) RHD
8B Tyre Pressure Monitor Module RHD 25A Telephone (GSM) Module LHD
9Multi-media Module (MMM) RHD/LHD 25B Teleph one (GSM) Module RHD
10 ABS/Traction Control/Dy namic Stability Control
(DSC) Module RHD/LHD 26A Telephone (Bluetooth) Module LHD
11 Tracker Module RHD Only 26B Tel ephone (Bluetooth) Module RHD
12 Fan Module RHD/LHD 27A High Intensity Discharge (HID) Module LHD
13 HVAC Module RHD/LHD 27B High Intensity Discharge (HID) Module RHD
14 Infotainment Control Module RHD/ LHD 28 Centre Console Module (CCM)
15A Instrument Cluster Module RHD