2010 ASTON MARTIN V8 VANTAGE tyre pressure

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

Front Suspension (04.01)
Suspension (04.00)4-1-2 Workshop Manual November 2008
Symptoms
SymptomPossible CauseAction
Crabbing Front or rear suspension components/road
wheel alignment Inspect front and rear suspension systems.
Check / adjust road wheel alignment
Drive axle damaged New drive axle.
Front ‘Bottoming’
or Riding Low Spring(s)
Dampers Check ride height.
Check dampers.
Drift/Pull Unequal tyre pressure Check / adjust tyre pressures.
Inspect tyre for excessive wear.
Incorrect road wheel alignment Check / adjust road wheel alignment.
Tyres Check / adjust tyre pressu res. Inspect tyre for excessive
wear.
Unevenly loaded or overloaded vehicle Not ify customer of incorrect vehicle loading .
Damaged steering components Check steering sy stem for mechanical or hydraulic bias.
Brake drag Check brakes.
Check steering system for mechanical or hydraulic bias.
Rough Ride Spring(s) Check springs.
Shock absorber(s) Check shock absorbers.
Incorrect Tyre
Wear Incorrect tyre pressure Check and adju
st tyre pressure. Inspect tyre for
excessive wear.
Excessive front or rear Toe (rapid inner or
outer edge wear) Check and adjust road wheel alignment (Refer to ’Road
Wheel Alignment (04.00)’, page 4-0-2).
Excessive negative or positive camber
(rapid or outer edge wear) Check and adjust road wheel alignment (Refer to ’Road
Wheel Alignment (04.00)’, page 4-0-2).
Tyres out of balance (tyres cupped or
dished) Balance tyres.
‘Shimmy’ or ‘Road
Wheel Tramp’ Loose road wheel nut(s) Check and tighten road wheel nuts to specification.
Loose front suspension Check and tighten
suspension fixings to specification.
Front road wheel bearing(s) Check road wheel bearings.
Road wheel / tyres Check road wheels / tyres.
Shock absorber(s) Check shock absorbers.
Spring(s) Check springs.
Loose, worn or damaged ball -joint(s) Check ball-joint(s).
Loose, worn or damaged steering
components Check components.
Front road wheel alignment Check and adjust road wheel alignment (Refer to ’Road Wheel Alignment (04.00)’, page 4-0-2).
Worn or damaged suspension bushes Check suspension bushes
Poor ‘Return
ability’ of Steering ball-joints Check ball-joint(s).
Steering components Check for excessive friction in steering system.
Check tyre pressures
Steering Wheel
Off-Centre Unequal front or rear Toe settings Check and adjust road wheel alignment.
Steering components Check and install new components as required.
Sway or Roll Overloaded, unevenly or incorrectly
loaded vehicle Notify customer of incorrect vehicle loading
Loose road wheel nut(s) Check. Tighten road wheel nut(s) to specification
Spring(s) Check. Install new springs as required.
Shock absorber(s) Check. Install new shock absorbers as required.
Loose front stabilizer bar or rear stabilizer
bar Check. Tighten anti-roll bar to specification.

Road Wheels and Tyres (04.04)
Suspension (04.00)
May 2007 Workshop Manual 4-4-3
Maintenance
Factory installed tyres and road wheels are designed to
operate satisfactory when inflated to the recommended
inflation pressures (Refer to ’Inspection and Verification’,
page 4-4-4). The recommended pressures apply to vehicle
loads up to and including the full-rated load capacity.
Correct tyre pressures and driving technique have an
important influence on tyre life. Heavy cornering,
excessively rapid acceleration and unnecessary sharp
braking increase tyre wear.
Replacement tyres should follow the recommended:
The use of any other size or type may seriously affect:
Wheels need to be renewed when:
Safety
Tyre Replacement and Wheel
Interchanging
When replacement of tyres is required it is preferable to
install a complete vehicle set. S hould either the front or rear
tyres only show excessive wear, new tyres must be installed
to replace worn ones. Under no circumstances interchange
tyres from side to side, front to re ar or vice versa as individual
tyre wear produces unique characteristics depending upon
their position. If the position is changed after wear has
occurred, the performance of the tyre will be adversely
affected.
New tyres must be balanced before installing to the vehicle.
•Size
•Speed rating
•Load range
• Radial construction type
•Safety
•Ride
•Handling
• Speedometer and Odometer calibration • Vehicle ground clearance
• Tyre clearance between
body and chassis
• Wheel bearing life
• Brake cooling
• Impact damaged
• Heavily corroded
• Porous • Wheel stud holes or seats
become damaged
• They have excessive radial or lateral runout.
ENSURE THAT TYRES ARE MOUNTED WITH THE
SIDEWALL MARKING ‘OUTSIDE’ SHOWING ON THE
OUTER SIDEWALL FACE.
CORRECT TYRE ROTATIONAL DIRECTION IS CRITICAL.
WA R N I N G
A TYRE AND WHEEL MUST ALWAYS BE CORRECTLY MATCHED. WIDER OR NARROWER TYRES THAN
RECOMMENDED COULD CAUSE DANGER THROUGH
SUDDEN DEFLATION.
WA R N I N G
WHEN CHANGING A WHEEL, MAKE SURE THAT THE VEHICLE CANNOT MOVE. ALWAYS APPLY THE
PARKING BRAKE AND SELE CT THE TRANSMISSION
PARK POSITION (AUTOMATIC TRANSMISSION ONLY).
WA R N I N G
NEVER RUN THE ENGINE WITH ONE WHEEL OFF THE GROUND, FOR EXAMPLE, WHEN CHANGING THE
WHEEL. THE WHEEL RESTING ON THE GROUND MAY CAUSE THE VEHICLE TO MOVE.
WA R N I N G
ALWAYS TIGHTEN THE WHEEL NUTS TO
SPECIFICATION. TOO TIGHT MAY CAUSE DAMAGE,
TOO LOOSE MAY ALLOW TH E WHEEL TO BECOME
DETACHED.
WAR NI NG
DO NOT MIX DIFFERENT TY PES OF TYRES ON THE
SAME VEHICLE. HANDLING MAY BE SERIOUSLY AFFECTED RESULTING IN LOSS OF CONTROL.
WAR NI NG
USE ONLY WHEELS AND WHEEL NUTS SUPPLIED BY
ASTON MARTIN. AFTER MARKET WHEELS OR WHEEL
NUTS MAY NOT INSTALL OR FUNCTION CORRECTLY
AND COULD CAUSE INJURY OR DAMAGE.
Caution
When a new tyre is installe d, always renew the tyre
valve.

Road Wheels and Tyres (04.04)
Suspension (04.00)
May 2007 Workshop Manual 4-4-5
Road Test
A tyre vibration diagnostic proc edure always begins with a road test. The road test and customer interview (if available)
will provide much of the information neede d to find the source of a vibration.
During the road test, drive the vehicle on a road that is smoot h and free of undulations. If vibration is apparent, note and
record the following:
• The speed at which the vibration occurs
• What type of vibration occurs in each speed range
• How the vibration is affected by changes in the following types of vibration-sensitivity:
Torque Sensitive - This means that the condition may be improved or made worse by accelerating, decelerating, coasting,
maintaining a steady vehicle speed or applying engine torque.
Vehicle Speed Sensitive - This means that the vibration always occurs at the same vehicle speed and is not affected by
engine torque, engine speed or the transmission gear selected.
Engine Speed Sensitive - This means that the vibration occurs at varyin g vehicle speeds when a different transmission
gear is selected. It may sometimes be isolated by increasing or decreasing engine speed with the transmission in NEUTRAL
or by stall testing with the transmission in gear. If the condition is engine speed sensitive, the cause is probably not relate d
to the tyres.
If the road test indicates that there is tyre whine, but no sh ake or vibration, the noise originates with the contact between
the tyre and the road surface.
A thumping noise usually means that the tyre has a flat or soft spot making a noise as they slap the roadway. Tyre whine
may be distinguished from axle noise. Tyre whine remains the same over a range of speeds.
Symptoms
SymptomPossible Source(s):Action(s)
Tyres show excess wear on
edge of treads Tyres under-inflated Correct pressure to specification.
Vehicle overloaded Correct as required.
Tyres show excess wear on
edge of treads (having the
correct tyre pressures) Incorrect toe setting Set to specification.
Tyres show excess wear in
center of tread Tyres over-inflated Correct pressure to specification.
Other excessive tyre wear
problems Incorrect tyre pressure Correct pressure to specification.
Incorrect tyre and wheel usage Install correct tyre and wheel combination.
Geometry out of alignm
ent Check and adjust.
Loose, worn or damaged suspension
components Inspect, repair or install new suspension
components as necessary.
Wheel and tyre assembly out of
balance Balance wheel and tyre assembly.
Excessive lateral or radial runout of
wheel or tyre Check, repair or install a new wheel or tyre as
necessary.
Wheel mounting is difficult Incorrect application or mismatched
parts, including wheel studs and wheel
nuts. Corroded, worn or damaged parts Clean or install new parts.
Wobble or shimmy affecting
wheel runout Damaged wheel (eventually damaging
wheel bearings and causing uneven
tyre wear) Inspect wheel rims for damage and runout.
Install a new wheel rim as necessary.
Excessive vibration, rough
steering or severe tyre wear Loose or incorrect attaching parts Tighten or install new parts.

Road Wheels and Tyres (04.04)
Suspension (04.00)4-4-6 Workshop Manual May 2007
Ty r e D a m a g e
Vehicle vibrations Tyres and wheels mismatched Install correct tyre and wheel combination.
Inflation pressure too high or too lo w Correct pressure to specification
Uneven tyre wear Refer to Diagnosis and Testing .
Out-of-balance wheel, tyre, wheel hub
or disc assembly Determine the out-of-balance component and
balance or install a new part.
Damaged or distorted wheel from road
impact hazard or incorrect handling Install a new wheel.
Excessive radial runout Install a new wheel or tyre. Check for incorrect wheel and tyre specifications.
Excessive lateral runout Install a new wheel or tyre.
Incorrectly seated tyre Remount the tyre.
Loose wheel mountings - damaged
wheel studs, wheel nuts, worn or
broken wheel hub face or foreign
material on mounting faces Tighten or install new parts. Clean mounting
surfaces.
Defective wheel bearings Install a new bearing set.
Brake disc imbalance
Water in tyres Remove water.
Loose engine or transmission mounts Install new mount nuts / install new mounts.
Incorrect front end alignment Align front end.
Loose or worn driveline or suspension
parts Repair or install new parts.
Excessive driveshaft runout or
imbalance Install a new driveshaft.
Worn or damaged flexible drive joint Install a new driveshaft.
Damaged wheel hub stud
threads Sliding wheel across the wheel studs
during installation. Loose wheel nuts
Install new wheel studs.
Broken wheel studs Loose or over tightened wheel nuts Install new wheel studs.
Corrosion and contamination
streaks from the wheel hub
wheel stud holes Loose wheel nuts Check complete assembly. Install new parts.
Damaged wheel nuts Loose wheel assembly Install new wheel nuts.
Over-tightened wheel nuts Install new wheel nuts.
Frozen wheel nuts Corrosion or galling If corrosion is light, wire brush away corrosion.
If corrosion is excessive install new wheel studs
and wheel nuts.
SymptomPossible Source(s):Action(s)
SymptomDescription
Age Deterioration Cracking and crazing of the tread and side wall rubber, sometimes accompanied by carcass
deformation. An indication that the tyres have been in service for a very long time.
Neglected Cut Damage through accidental cuts or penetrations will extend in use due to continued flexing and /
or ingress of moisture and road matter.
Impact Fracture Resultant damage from impact fractures is not always visible externally and, therefore, as a safety
precaution the tyre should be removed and examined.
Casing fracture caused by severe localized impact through driving over kerbs, hitting potholes
and / or objects in the road.
A double fracture caused by crushing the side wall of the tyre between an object and the rim
flange.
In both instances, such damage can lead to sudd en and dangerous tyre deflation some time after
the impact occurred.

Road Wheels and Tyres (04.04)
Suspension (04.00)
May 2007 Workshop Manual 4-4-9
Tyre Pressure Sensing (Option)
Tyre pressure sensing monitors the vehicle tyre pressures
and feeds-back this info rmation to the driver.
Each road wheel is installed with a tyre pressure sensing
device which sends tyre pressu re information to a control
unit mounted in the centre, rear wall of the boot.
The control unit provides a
visual warning by illuminating
the tyre pressure warning lamp
(A) on the instrument panel if
any tyre pressure falls below
specification.
Pressure Sensing
with Winter Wheels
and Tyres
If the tyre pressure sensing option is installed on the vehicle,
the winter road wheel and tyre option with the tyre pressure
sensing system should be installed. The tyre pressure sensing
system will need to be programmed to recognize additional
tyres.
Wa r n i n g s
WAR NI NG
TYRE PRESSURE SENSING IS NOT INTENDED TO REPLACE DRIVER AWARENESS OF TYRE
PERFORMANCE OR THE NEED FOR RECOMMENDED WEEKLY CHECKS ON TYRE CONDITION AND
PRESSURE.
Each pressure sensing device
has a colour coded collar.
Ensure the coloured collars
are always installed in their
original positions, i.e. after
new tyres are installed.
Road wheelColour
Front right
Front Left
Rear Right
Rear Left Green
Red
Blue
Yellow
Instrument
Cluster
Lamp constant / Message ‘Check Tyres’.
Fault
Tyre pressure below specification.
Action
Reduce speed to 48 km/h (30 mph). Stop in safe place as
soon as possible.
One of the coloured LEDs on the control module will
illuminate to indicate which tyre requires inflating . The
LED colour corresponds to th e colour of the band below
each tyre valve cap. Inspect affected tyre. Re-inflate if
necessary. If on inspection the tyre is found to be OK,
continue at 48 km/h (30 mph) maximum.
Ensure that the coloured band remains in position.
Instrument
Cluster Lamp constant / Message ‘Check Tyres’.
Fault
Tyre transmitter fault.
Action
Reduce speed to 48 km/h (30 mph). Stop in safe place as
soon as possible.
Inspect affected tyre. Re-inflate if necessary.
If on inspection the tyre is found to be OK, continue at 48
km/h (30 mph) maximum.
Instrument
Cluster Lamp constant / Message ‘Tyre system
Fault’
Fault
Control module fault.
Action
Stop in safe place as soon as possible.
Check all tyres for flats. If OK, continue at 48 km/h (30
mph) maximum.

Road Wheels and Tyres (04.04)
Suspension (04.00)4-4-10 Workshop Manual May 2007
Display Unit
The display unit provides additional features when correctly
connected to a previously installed ‘Smartire’ system. The
display unit connects directly to the front of the basic
‘Smartire’ receiver and is powered from the vehicle circuits.
The display will be fully illu minated during use but will go
into ‘Energy Saver’ mode when no activity is detected.
Display Panel
Connection and Normal Operation
1. Remove the front bezel of the Pressure Sensor Receiver. Install the extension lead to the display unit and to the
receiver module. Turn on the ignition.
All icons will illuminate briefly and then extinguish
leaving only the vehicle outline.
2. When tyre pressure data is received, (drive the vehicle
or spin the road wheels), all the road wheel icons will
appear. Press the Tyre icon to access the recorded data
for each of the four road wheels.
3. Press the Mode button to scroll through the pressure, temperature and pressure deviation readings for the
selected tyre. 4. If any tyre pressure sensor is defective, the display will
show three dashes to indicate the absence of data for
that tyre.
5. To return to normal mode, press the SET button.
System Programming
The system may be programmed by the user on three
different levels. Enter Progra mming Mode by pressing the
‘Set’ button:
• 2 seconds to enter level 1
• 5 seconds to enter level 2
• 10 seconds to enter level 3
The following parameters ma y be set in each level:
Level 1 Programming
Cold inflation pressure
1. Press ‘Set’ for 2 seconds to enter level 1 programming .
2. Press ‘Tyre’ to select the front or rear axle. Front or rear
tyres will be highlighted.
3. Press ‘Mode’ to show the current value. Press ‘Tyre’ to increase or ‘Mode’ to decrease the current value.
4. Press ‘Set’ to save the new values.
5. Repeat steps 2 - 4 to set the cold inflation pressure for other the axle.
Programmed wheel position No data
Data received
Alarm light Low pressure warning
Alert indicatorLearn mode MODE button
Set button
Tyre rotation program
Cold pressure program
Programming mode
Towing vehicle indicator
Numerical display
Units of pressure or temperature TYRE button
36-5-038
36-5-039
Level 1
• Cold Pressure
• Tyre Rotation
• Low Pressure Warning
• Pressure Deviation
• High Temperature Alert
•Units Selection
Level 2 •Slope
• Learn Transmitter ID
Level 3 • Low Pressure Alert
PSI
36-5-045

Road Wheels and Tyres (04.04)
Suspension (04.00)
May 2007 Workshop Manual 4-4-11
Tyre Rotation
1. Press ‘Set’ for 2 seconds to enter level 1 programming .
2. Press ‘Mode’ repeatedly until ‘Tyre Rotation’ icon is displayed.
3. Press ‘Tyre’ to scroll to a tyre position. Press ‘Mode’ to display the current sensor identity.
4. Ensure that the road wheels and tyres are installed in the correct locations (see the colour code list above). Note
the correct code number for each road wheel.
5. Use ‘Tyre’ or ‘Mode’ to co rrect the sensor identity code
if required.
6. Repeat for the remaining tyres.
7. Press ‘Set’ twice to exit the programme.
Low Pressure Warning
1. Press ‘Set’ for 2 seconds to enter level 1 programming .
2. Press ‘Mode’ repeatedly until ‘Flat Tyre’ icon is displayed.
3. Press ‘Tyre’ to scroll to th e desired axle. Press ‘Mode’ to
display the current low pressure warning value. 4. Press ‘Tyre’ to increase or
‘Mode’ to decrease current
value.
5. Press ‘Set’ to enter the new value into memory.
Pressure Deviation Alert
This function sets the threshold for warning of a deviation
from normal tyre pressures.
1. Press ‘Set’ for 2 seconds to enter level 1 programming .
2. Press ‘Mode’ repeatedly until the ‘+-’ icon is displayed.
3. Press ‘Tyre’ to display the current value.
4. Press ‘Tyre’ to increase or ‘Mode’ to decrease the
current value
5. Press ‘Set’ to save the amended value.
6. Press ‘Set’ again to revert to normal operation.
High Temperature Alert
1. Press ‘Set’ for 2 seconds to enter level 1 programming .
2. Press ‘Mode’ until ‘ale rt’ icon is displayed.
3. Press ‘Tyre’ to display the current value of the high temperature alert.
4. Press ‘Tyre’ to increase or ‘Mode’ to decrease current
value
5. Press ‘Set’ to save the amended value.
6. Press ‘Set’ again to return to normal mode.
Units Selection
Use this function to select the combination of units for
pressure and temperature.
WAR NI N G
THE ROAD WHEELS AND TYRES ARE ASYMMETRICAL AND DIFFERENT SIZES FRONT AND REAR. THEY
MUST NOT BE ROTATED FRONT TO REAR. THIS FUNCTION SHOULD BE USED ONLY TO VERIFY
CORRECT TYRE POSITION. DO NOT CHANGE THE PROGRAMMED DATA.
Each sensor is identified by th e colour of a washer on the
tyre valve. Tyres are always in stalled in fixed positions and
must remain as follows:
• Right Front - Green (Code 1)
• Left Front - Red (Code 2)