2010 ASTON MARTIN V8 VANTAGE tyres

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

Steering Gear (11.01)
Steering (11.00)
Issue 5, January 2010 Workshop Manual 11-1-3
Vehicle tends to pull
to one side when
driven on a level
surface. Incorrect tyre pressure. Adjust tyre pressure.
Incorrect tyre size.
Different tyre or tread type.
New tyre as required.
Vehicle is unevenly or excessively loaded. Adjust load evenly.
Incorrect toe adjustment. Adjust as required.
Damaged front or rear suspension
components. New suspension components.
Steering gear valve effort out of balance. Shift transmission into neutral while driving at no more than 30 miles/hour (50 km/h) and turn the
ignition to position I (engine ‘Off’-coasting).
a. If the vehicle does not pull to one side with the
engine off, install a new steering gear.
b. If the vehicle drifts with the engine off, ‘cross switch’ the front wheel assemblies.
Test at low speed due to directional tyres.
a. If the vehicle pulls to the opposite side, switch the wheels that were on the rear to the same
side on the front.
b. If the vehicle pull direction is not changed, check the front suspension components and
toe adjustments.
Check front and rear brakes for correct
operation. Adjust as required.
Check for bent rear suspension components
and for damaged coil springs in the front
suspension. New rear suspension components.
Check the rear suspension for loose or worn
suspension components. Tighten.
New components.
Incorrect underbody alignment. Check underbody alignment.
Feedback (whining
or knocking noises
in the steering gear)
Condition where
roughness is felt in
the steering wheel by
the driver when the
vehicle is driven over
rough surfaces. Loose or worn tie-rods. New steering gear.
Steering gear bolts loose or damaged. Tighten.
New bolts.
Loose suspension bushing , bolts or ball joints. Tighten.
New components.
Damaged steering column.
Loose Column bolts. New steering column.
Tighten bolts.
Power steering
pump or reservoir
leaks Overfilled system. Correct fluid level.
Damaged fluid cap. New fluid cap.
Loose or damaged hose fittings. Tighten.
New hose.
Leakage at power steering pump. New power steering pump.
Poor returnability of
the steering Incorrect tyre pressure. Check
and adjust tyre pressure.
Incorrect tyre size or ty pe. New tyre as required.
Steering column universal joints binding . New steering column.
Steering column shaft floor seal may be torn
and fouling I-shaft. New floor seal as required.
Binding or damaged tie-rods. New steering gear.
Damaged or worn front suspension
components. New front suspension components as required.
Incorrect toe adjustment. Adjust as required.
SymptomPossible CauseAction

Power Steering (11.02)
Steering (11.00)11-2-2 Workshop Manual Issue 5, January 2010
Maintenance
Power Steering System - Bleed
Procedure
1. Do a check of the fluid level in the PAS fluid reservoir. Add fluid if necessary.
2. Start the engine and let it idle for 20 seconds.
3. Operate the steering fully to the left and then the right through three cycles.
4. Stop the engine.
5. Wait for five minutes then do a check of the fluid level in the PAS fluid reservoir again.
6. Add fluid if necessary.
7. Install the PAS fluid reservoir cap.
Power Steering Pump-Renew
Removal
1. Remove A/C compressor (see Workshop Manual procedure 03.05.BE Compre ssor - Air Conditioning -
Renew).
2. Coolant drain (see Workshop Manual procedure 03.03.AD Coolant - Drain & Refill).
3. Remove PAS fluid from reservoir.
4. Disconnect HP union from PAS pump pipe.
5. Remove bolt P-clip suction hose to body.
6. Remove bolt (x1) HP pump pipe to engine.
7. Remove bolts (x3) PAS pump to engine.
8. Disconnect bottom hose and move aside.
9. Unclip (x1) harness from cylinder head for access.
10. Manouvre pump forward and up.
11. Disconnect suction hose (cut off clip) and remove pump.
12. Remove HP union pipe from pump (mark position on
pump).
Installation
1. Install HP union pipe to pump (align correctly), fit new O-ring.
2. Install pump to vehicle connect suction pipe to PAS pump, align timing marks and fit new clip.
3. Manouvre pump into position.
4. Install bolts (x3) PAS pump to engine (torque).
5. Install bolt (x1) HP pump pipe to engine (torque).
6. Connect bottom hose.
7. Clip (x1) harness from cylinder head for access. 8. Install bolt P-clip suction hose to body (torque).
9. Connect HP union to PAS pump pipe, replace O-ring
(torque).
10. Coolant refill (see Workshop Manual procedure 03.03.AD Coolant - Drain & Refill).
11. Install A/C compressor (see Workshop Manual procedure 03.05.BE Compre ssor - Air Conditioning -
Renew).
12. Top-up PAS fluid.
13. Start and run engine, operate steering lock to lock x2.
14. Top-up PAS fluid.
Power Assisted Steering (PAS) Rack -
Remove and Install
Removal
1. Disconnect the battery ground cable.
2. Remove the front undertray (refer to Workshop Manual Procedure 01.02.NB - Front Undertray).
3. Remove the front wheels and tyres (refer to Workshop Manual Procedure 04.04.ED - Wheel and Tyre - Pair).
4. Remove the front right side wheel-arch liner (refer to Workshop Manual Procedure 01.02.GB - Front Right
Side Wheel-Arch Liner).
5. Put a container in position under the oil tank to collect oil.
6. Remove the drain plug from the oil tank.
Figure 1
7. Let the oil drain into the container.
8. Install and tighten the drain plug into the oil tank (refer to Figure 1).
9. Remove the container.
10. Lower the vehicle.
11. Remove the radiator closing panel (refer to Workshop Manual Procedure 01.02.AA - Radiator Closing Panel).
Repair Operation Time (ROT)
Repair Operation Time (ROT)
Repair Operation Time (ROT)
ItemCode
Power Assisted Steering (PAS) Rack -
Remove and Install 11.02.AA

Power Steering (11.02)
Steering (11.00)
Issue 5, January 2010 Workshop Manual 11-2-11
41. Install the clip that attaches the air intake pipe to the throttle body.
Figure 49
42. Remove and discard the sealing plugs from the two breather pipes and the air intake pipe.
43. Connect the two breather pipes to the air intake pipe.
Figure 50
44. Install the radiator closing panel (refer to Workshop Manual procedure 01.02.AA - Radiator Closing Panel).
45. Fill the oil tank with the correct quantity of oil.
46. Fill the PAS fluid reservoir with the correct quantity of
PAS fluid.
47. Connect the battery ground cable.
48. Bleed the PAS system.
49. Do a check of the engine oi l level. Add oil if necessary.
50. Lift the vehicle.
51. Install the front right side wheel-arch liner (refer to Workshop Manual procedure 01.02.GB - Front Right
Side Wheel-Arch Liner).
52. Install the front wheels and tyres (refer to Workshop Manual procedure 04.04.ED - Wheel and Tyre - Pair)
53. Do a check of the four-wheel alignment.
54. Use the applicable equipment to lift the vehicle and make it safe.
55. Install the front undertray (refer to Workshop Manual procedure 01.02.NB - Front Undertray).
RH/LH Track Rod End-Renew
Removal
1. Raise vehicle on ramp.
2. Remove road wheel(s).
3. Loosen tie rod locknut.
4. Install tool (204 - 524) on front hub, install and tighten
wheel nuts.
5. Lower vehicle to raise suspension sufficient to install ball joint removing tool (204 - 523).
6. Remove nut, track rod end to vertical link.
7. Using (204-523 Ball Joint Sp litter), release track rod end
from vertical link.
8. Remove tool (204 - 524) from front hub.
9. Count number of turns and remove track rod end from tie rod.
Installation
1. Clean track rod end taper and mating face on vertical link.
2. Install track rod end on tie rod the same amount of turns.
3. Install track rod end in vertical link.
4. Install road wheel(s).
5. Lower vehicle on ramp.
6. Carry out full vehicle geometry check/adjust.
7. Torque tie rod ball joint locknut(s).
Power Steering Pump to Rack Hose
Assembly-Renew
Repair Operation Time (ROT)
Repair Operation Time (ROT)

Torque Figures
Appendix & Glossary20-1-14 Workshop Manual May 2007
Wheels and Tyre Checks
x x x Check for correct tyre size, type and orientation.
x x x Check and report tyre tread depth.
x x x Check tyres for uneven/excessive wear or damage.
x x x Check/adjust tyre pressures.
x x x Check torque of road wheel nuts.
x x x Check road wheel rims for inner and outer damage.
x x x Check colour coded valve collars for co rrect location (tyre pressure monitoring)
(not Japanese market)
x x x Check ‘Use by ’ date of tyre repair kit and replace if expired or expiry date is
within 12 months
Anti Corrosion Check - x x Check body panels and underbody for corrosion starting from the inside - out
(excluding stone chips).
Final Checks x x x Degrease windscreen.
x x x Check clutch functionality.
x x x Check operation/condition of all seat belts and buckles.
x x x Check that the fuel filler bowl rain drain is clear.
x x x Carry out road test.
1000mls
1500km
3 months10000mls
16000km
12 months20000mls
32000km
24 months