2010 ASTON MARTIN V8 VANTAGE 11-2

Issue 5, January 2010 Workshop Manual 11-1-1
Steering (11.00)
Contents
Steering Gear (11.01) .......................................... 11-1-2Diagnostics - Symptom Chart................................. 1-2
Specifications.......................................................... 1-4
Power Steering (11.02) ........................................ 11-2-1 Description ............................................................. 2-1
Specifications.......................................................... 2-1
Maintenance ........................................................... 2-2Power Steering System - Bleed ............................... 2-2
Procedure .............................................................. 2-2
Power Steering Pump-Renew ................................. 2-2
Power Assisted Steering (PAS) Rack -
Remove and Install................................................. 2-2
RH/LH Track Rod End-Renew .............................. 2-11
Power Steering Pump to Rack Hose Assembly
-Renew ................................................................ 2-11
Power Steering Rack to Cooler Hose-Renew ........ 2-12
Steering Column (11.04)...................................... 11-4-1 Description ............................................................. 4-1
Specifications.......................................................... 4-1
Maintenance ........................................................... 4-1Top Shroud for the Steering Column
- Remove and Install .............................................. 4-1
Bottom Shroud for the Steering Column
- Remove and Install .............................................. 4-1
Steering Column Gaiter-Renew .............................. 4-2
Upper Steering Column Assembly-Renew .............. 4-3
Top and Bottom Shrouds for the Steering Column
- Remove and Install .............................................. 4-4
Steering Column Lower Shaft Assembly-Renew ...... 4-5
Steering Column Switches (11.05)....................... 11-5-1 Maintenance ........................................................... 5-1Ignition Switch-Renew (Pre-08 MY Only) ............... 5-1
Steering Column Stalk Assembly Switch-Renew
(Pre-08 MY Only) ................................................... 5-1
Cruise Control Switch-Renew................................. 5-2
Indicator Switch for the Steering Column
- Remove and Install .............................................. 5-2
Airbag Rotary Coupler Assembly - Remove and
Install ..................................................................... 5-2
Wiper Switch for the Steering Column
- Remove and Install .............................................. 5-4
Steering Wheel (11.06) ........................................ 11-6-1 Specifications.......................................................... 6-1
Maintenance ........................................................... 6-1Steering Wheel-Renew .......................................... 6-1
Driver’s Airbag Module - Remove and Install .......... 6-1

Power Steering (11.02)
Steering (11.00)
Issue 5, January 2010 Workshop Manual 11-2-1
Steering (11.00)
Power Steering (11.02)
Description
The power steering system comprises of a non-speed
sensitive rack and pinion steering gear together with an
engine driven vane pump, operating at a constant flow rate.
The level of assistance is co ntrolled via a rotary hydraulic
valve, integral to the steering gear assembly.
Hoses / pipe are used to transm it hydraulic fluid throughout
the steering system. The high -pressure line contains a
pressure transducer, which sends an electronic signal to the
engine management system. This ensures engine RPM is
maintained when the steering system draws higher loads
from the engine (i.e. during parking manoeuvres.) In order
to regulate system temperatures, a wire-wound cooler is
incorporated into the return line.Specifications
11-01-002Steering Gear
Cooling Loop
Power Steering
Pump
Fluid Reservoir
ItemData
Pump Pressure (max)
Turns lock-to-lock
Overall steering ratio
Turning Circle (Kerb
To K e r b )
Fluids
Toe Settings 116 ±4Bar
3
17:1
11.1m

33270 Texaco Cold Climate Power
Steering Fluid 14315G (to 10 MY)
Pentosin CHF 11S (10MY onwards)
(Refer to ’Road Wheel Alignment
(04.00)

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 11-2-3
12. Disconnect the two breather pipes from the air intake pipe.
Figure 2
13. Install sealing caps into the open ports.
14. Release the clip that attaches the air intake pipe to the throttle body.
Figure 3
15. Release the clip that attaches the air intake pipe to the outlet pipe for the right side air cleaner.
Figure 4
16. Disconnect the air intake pi pe from the outlet pipe for
the right side air cleaner and move it away.
Figure 5
17. Disconnect the two oil breather pipes from the oil tank.
Figure 6
18. Install sealing caps into the open ports.
19. Loosen the union that attaches the top oil pipe to the oil tank and move the pipe away.
Figure 7
20. Install sealing plugs into the open ports.

Power Steering (11.02)
Steering (11.00)11-2-4 Workshop Manual Issue 5, January 2010
21. Remove the two top screws that attach the oil tank to the body.
Figure 8
22. Lift the vehicle.
23. Remove the four screws that attach the anti-roll bar to the front subframe.
Figure 9
24. Move the anti-roll bar away and use a cable tie to hold it.
25. Loosen the union that attaches the bottom oil pipe to the oil tank and move the pipe away.
Figure 10
26. Disconnect the two lower oil pipes from the oil tank and move them away.
27. Install sealing caps in the open ports. 28. Remove the two bottom screws that attach the oil tank
to the body.
Figure 11
29. Lower the vehicle.
30. Carefully remove the oil tank.
Figure 12
31. Lift the vehicle.
32. Remove the bolt that attaches the universal joint for the lower steering column to the pinion coupling.
Figure 13
CAUTION
Be careful when you remove the oil tank in the step that follows. If you are not, the air conditioning switch and
wiring harness can be damaged.

Power Steering (11.02)
Steering (11.00)
Issue 5, January 2010 Workshop Manual 11-2-5
33. Turn the lever on the universal joint to release it from the coupling.
Figure 14
34. Move the steering to get access to the bolt that attaches the pinion coupling to the Po wer Assisted Steering (PAS)
rack.
35. Remove the bolt that attaches the pinion coupling to the PAS rack.
Figure 15
36. Remove the pinion coupling.
37. Remove and discard the two bolts that attach the brake caliper to the front wheel knuckle.
Figure 16
38. Release the brake caliper from the front wheel knuckle.
Figure 17
39. Use a cable tie to hold the brake caliper.
40. Make a mark to show the position of the brake disc
against the wheel hub.
41. Remove the two screws that attach the brake disc to the wheel hub.
Figure 18
42. Remove the brake disc.
CAUTION
Do not let the caliper hang on the brake hose. If you do, the brake hose can be damaged

Power Steering (11.02)
Steering (11.00)11-2-6 Workshop Manual Issue 5, January 2010
43. Remove the front bolt that attaches the brake backplate to the front wheel knuckle.
Figure 19
44. Remove and discard the nut that attaches the track rod
end to the front wheel knuckle.
Figure 20
45. Use the special tool to release the track rod end from the vertical link.
Figure 21
46. Remove the special tool from the track rod end.
47. Do steps 39 to 48 for the other side.
48. Put a container in position under the PAS rack to collect spilled oil.
49. Lower the vehicle. 50. Remove the bolt that attaches the PAS pipes to the PAS
rack.
Figure 22
51. Disconnect the PAS pipes from the PAS rack.
Figure 23
52. Let the oil drain into the container.
53. Lift the vehicle.
54. Remove and discard the two O-ring seals from the PAS pipes.
Figure 24
55. Install applicable caps to seal the open ports.
56. Make sure that the area is clean.

Power Steering (11.02)
Steering (11.00)
Issue 5, January 2010 Workshop Manual 11-2-7
57. Remove the three bolts that attach the PAS rack to the front subframe.
Figure 25
58. Remove the PAS rack.
Install
1. Put the PAS rack into position.
Figure 26
2. Install and tighten the three bolts that attach the PAS rack to the front subframe.
Figure 27
3. Remove and discard the caps from the PAS pipes and the PAS rack. 4. Install two new O-ring seals onto the PAS pipes.
Figure 28
5. Connect the PAS pipes to the PAS rack.
Figure 29
6. Lower the vehicle.
7. Install and torque the screw that attaches the PAS pipes
to the PAS rack.
Figure 30
8. Lift the vehicle.