erg valve ASTON MARTIN V8 VANTAGE 2010 Workshop Manual

1-1-2 Workshop Manual Issue 5, January 2010
RH/LH Seat Switchpack Assembly - Renew...........7-13
Lumbar Pump for the Front Seat (From 08MY)
- Remove and Install.............................................7-13
Lumbar Valve for the Front Seat (From 08MY)
- Remove and Install.............................................7-14
Lumbar Bladder for the Front Seat (From 08MY)
- Remove and Install.............................................7-14
Glass, Frame and Mechanism (01.11) .................. 1-8-1 Description .............................................................8-1 Frameless doors......................................................8-1
Specifications .........................................................8-1
Maintenance ...........................................................8-1 Glass Regulator - Renew .........................................8-1
RH/LH Door Glass - Renew ....................................8-2
Door Glass - Adjust/Reset .......................................8-3
Front Windshield - Renew ......................................8-3
Rear Windshield - Renew .......................................8-4
Quarter Window Glass - Renew .............................8-6
Passenger Window Lift Switch - Renew ..................8-6
Driver Window Lift Switch - Renew........................8-7
Instrument Panel (IP) (01.12)................................ 1-9-1 Specifications ..........................................................9-1
Maintenance ...........................................................9-1 Instrument Panel - Renew ......................................9-1
Airbag Panel and Door Assembly - Renew ..............9-6
Glovebox Assembly - Renew ..................................9-6
Instrument Centre Panel Asse mbly - Renew............9-7
Knee Protector - Renew .........................................9-7
Instrument Panel As sembly - Renew .......................9-7
Cluster Bezel Panel - Renew .................................9-10
Driver Panel Assembly - Renew ............................9-10
Instrument Panel Bezel A ssembly (With Sat. Nav.)
- Renew ...............................................................9-11
Instrument Panel Bezel Assembly
(Without Sat. Nav.) - Renew .................................9-11
Rear Console Panel Assembly - Renew .................9-12
Armrest Pad Assembly - Renew ............................9-13
Console Panel Assembly - Renew .........................9-13
RH/LH Rear Console Pa nel Assembly - Renew
(Roadster Only) ....................................................9-13
Centre Console Panel - Remove and Install
(Coupe Only) .......................................................9-15
Centre Console Panel - Remove and Install
(Roadster Only) ....................................................9-19
RH/LH Lower Quarter Panel Assembly - Renew
(Roadster Only) ....................................................9-29
Handles and Lock Mechanisms (01.14) .............. 1-10-1 Description ...........................................................10-1 Vehicle Key/Remote Transmitter...........................10-1
Central Locking System ........................................10-1
Remote Transmitter ..............................................10-1
Fuel Filler Assembly ..............................................10-1
Boot Emergency Release ....... ...............................10-1
Specifications ........................................................10-2
Maintenance .........................................................10-2 Ignition Cylinder Lock - Re new.............................10-2
RH/LH Front Door Latch As sembly - Renew .........10-2
Bonnet Latch Assembly - Renew...........................10-3
Hood Release Cable Assembly - Renew (Roadster Only) .................................................... 10-3
Bonnet Secondary Latch Asse
mbly - Renew ......... 10-4
Tailgate Latch and Cable Assembly - Renew ......... 10-4
Fuel Filler Actuator Assembly - Renew
(Roadster Only) .................................................... 10-4
Fuel Filler Release Cable - Renew (Roadster Only) 10-5
Fuel Flap Release Switch - Renew ........................ 10-6
RH/LH Tonneau Latch Motor - Renew
(Roadster Only) .................................................... 10-7
RH/LH Tonneau Latch - Renew (Roadster Only) ... 10-7
RH/LH Tonneau Cover Striker Assembly
- Renew (Roadster Only) ...................................... 10-8
Tailgate Latch Assembly-Renew (Roadster Only) ... 10-8
Wipers and Washer System (01.16) ....................1-11-1 Headlamp Washing .............................................. 11-1
Specifications ........................................................ 11-2
Maintenance ......................................................... 11-2 Windscreen Wiper Motor As sembly - Renew ....... 11-2
Wiper Linkage Assembly - Renew ........................ 11-2
Windshield Wash Tube - Renew .......................... 11-2
Windscreen Reservoir and Motor Assembly
- Remove and Install ............................................ 11-3
Low Level Water Sensor - Remove and Install ...... 11-4
Headlamp Wash Motor and Pump Assembly
- Renew ............................................................... 11-5
Headlamp Wash Tube Assembly - Renew ............ 11-5
Washer Fluid Reservoir - Renew........................... 11-6
Convertible Roof and Roof Opening Subsystem
(01.17)..................................................................1-12-1 System Description .............................................. 12-1
Maintenance ......................................................... 12-2 Hood Assembly-Renew ........................................ 12-2
Canopy Cover - Renew ........................................ 12-5
Header Latch Motor - Renew ............................... 12-9
Hydraulic Main Actuator Cy linder - Renew .......... 12-9
Hydraulic Tensrod Cylinder - Renew .................. 12-10
Hydraulic Tonneau Cylinder - Renew................. 12-11
Convertible Top ECU - Renew ........................... 12-13
Hydraulic Pump - Renew ................................... 12-13
Hydraulic Lock Valve - Renew............................ 12-16
RH/LH Front Cantrail Seal - Spare Part
- Renew ............................................................. 12-18
RH/LH Front Cantrail Seal Spare Part Kit
- Renew ............................................................. 12-18
RH/LH Middle Cantrail Seal Spare Part
- Renew ............................................................. 12-18
RH/LH Middle Cantrail Seal Spare Part Kit
- Renew ............................................................. 12-19
Rear Seal Spare Part Assembly Kit - Renew ......... 12-20
LH Fully Automatic Latching Kit - Renew............ 12-21
RH Fully Automatic Latching Kit - Renew ........... 12-22
Convertible Roof Hydraulic Pump
- Check Fluid Level ............................................ 12-23
Cantrail Cover Trim - Renew .............................. 12-25
B-Post Trim Cover - Renew ................................ 12-25
Tonneau Cover - Renew .................................... 12-27
LH Front Main Hydraulic Cylinder Pipe
- Renew ............................................................. 12-29
LH Rear Main Hydraulic Cylinder Pipe

Issue 5, January 2010 Workshop Manual 1-1-3
- Renew ............................................................. 12-33
RH Front Main Hydraulic Cylinder Pipe
- Renew ............................................................. 12-37
RH Rear Main Hydraulic Cylinder Pipe
- Renew ............................................................. 12-40
LH Front Hydraulic Cylinder Pipe - Renew........ 12-43
LH Rear Hydraulic Cylinder Pipe - Renew.......... 12-46
RH Front Hydraulic Cylinder Pipe - Renew ........ 12-50
RH Rear Hydraulic Cylinder Pipe - Renew ......... 12-53
RH/LH Rear Hydraulic Tonneau Cylinder Pipe
- Renew ............................................................. 12-56
LH/RH Front Hydraulic Tonneau Cylinder Pipe
- Renew ............................................................. 12-60
Hydraulic Cylinder Valve to Pump Pipe
- Renew ............................................................. 12-63
Wind Deflector - Renew .................................... 12-66
Tonneau Well Liner - Renew . ............................ 12-67
RH/LH Flex Shaft - Renew ................................. 12-69
Bumpers (01.19) .................................................. 1-13-1 Front Bumper ....................................................... 13-1
Rear Bumper......................................................... 13-1
Specifications........................................................ 13-2
Maintenance ......................................................... 13-2Front Bumper Cover - Renew .............................. 13-2
Rear Bumper Cover - Renew................................ 13-3
Restraining Devices (01.20)................................. 1-14-1 Seat Belts .............................................................. 14-1Emergency Locking Retractor (ELR) ...................... 14-2
Airbag System ....................................................... 14-3
Maintenance ......................................................... 14-4 Driver’s Airbag Module - Renew .......................... 14-4
LH Front Seat Belt - Renew .................................. 14-4
RH Front Seat Belt - Renew.................................. 14-5
Passenger Airbag - Renew .................................... 14-6
ARS Side Impact Sensor Assembly - B Pillar
- Renew ............................................................... 14-6
Side Impact Door ARS Sensor Assembly
- Renew ............................................................... 14-6
Front Impact Sensor Assembly - Renew ................ 14-7
Occupant Restraint Control Module Assembly
- Renew ............................................................... 14-7
RH/LH Roll Over Protection System - Renew ....... 14-8

Power Brake System (06.07)
Brake System (06.00)
May 2007 Workshop Manual 6-7-1
Brake System (06.00)
Power Brake System (06.07)
Brake Booster
The brake booster comprises a chamber divided by a diap hragm plate and is secured to the brake pedal housing.
As the brake pedal is pressed, a poppet valve opens allowing at mospheric pressure into the drivers side of the diaphragm.
Atmospheric pressure builds up on the drivers side of the diaphragm and pushes against the partial vacuum on the other
side. This additional force boosts the a pplied brake pedal force up to 6.5 times.
When the brake pedal is released, the poppet valve closes. The pressure on the diaphragm reduces and the compression
spring returns the diaphragm to the release position.
Emergency Brake Assist
In an emergency braking situation, a driver presses down on the brake pedal much faster than in normal braking
conditions, but often without sufficient force. The initial appli cation of the brake pedal is a reflex reaction. After the initial
application, many drivers do not brake ha rd enough because of concerns that they might cause the vehicle to skid. To aid
the driver, the panic brake assist (PBA) intervenes in bringing the vehicle to a halt, sooner and in a controlled manner, in
emergency braking situation. The PBA system monitors the speed of brake pedal activation, and at a calibrated pedal
activation speed, the PBA provides maximum brake force and makes full use of the ABS.
PBA is controlled by the ABS/DSC module, which monitors a travel sensor attached to the internal vacuum diaphragm of
the brake booster. The sensor determines the position of th e diaphragm and the speed of the diaphragm movement. If the
sensor's signal indicates an emergency braking situation, the
ABS/DSC module will open an electric solenoid on the brake booster. The solenoid directs atmospheric pressure into the
rear of the brake booster, causing the booster diaphragm to mo ve forward to fully apply the brakes. PBA takes full benefit
of ABS to stop the vehicle in a controlled manner and in the shortest distance possible. When the brake pedal is released
the ABS/DSC module instantly releases the brakes.

Air Conditioning (A/C) System (12.03)
Climate Control (12.00)
12-3-2 Workshop Manual May 2007
Major Components
Compressor
• Engine mounted, driven by the accessory drive belt
• Variable displacement type
• High-pressure relief valve, to avoid system over-pressure
• ECU controlled clutch energised via a relay
Receiver drier
• Vertically mounted on the right-hand side of the engine bay
• The high-side charge port is installed to the high side entry pipe to the receiver drier
Condenser
• Multi-pass fin-over-tube type, mounted in front of the engine cooling pack and directly to the radiator
Trinary switch
Located in the compressor discharge pipe
• Provides a signal, via the A/C module, to the PCM, to disengage the compressor clutch should the refrigerant
pressure be less than 2 bar or greater than 30 bar
• Provides a hard-wired signal to the PCM, to switch the cooling fans to HIGH speed at 22 bar rising pressure and
to LOW speed at 17,5 bar falling pressure
• Provides a hard-wired signal to the PCM, to switch the radiator cooling fans to LOW speed at 12 bar rising
pressure and to switch the fans OFF at 8 bar falling
pressure
Expansion Valve
The expansion valve is located on the outside of the A/C unit
and comprises of a diaphragm, connected by a capillary
tube to a temperature sensing bulb, which regulates the
valve according to temperature variations at the evaporator
outlet pipe. This component is not serviceable.
A/C Unit

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Air Conditioning (A/C) System (12.03)
Climate Control (12.00)
12-3-4 Workshop Manual May 2007
Storing Refrigerant
Handling Insufficient Refrigerant Level
Handling Compressor Oil
Refrigeration Cycle
Operation
1. The Compressor (1) dr aws low pressure, low
temperature, refrigerant vapour from the evaporator (5)
and compresses it, raising th e refrigerant pressure and
temperature.
2. This high pressure, hot, refrigerant vapour enters the condenser (2), where it is cooled by the flow of ambient
air and changes state into a cooler, high pressure liquid.
3. From the condenser, the liqu id passes into the receiver
drier (3) which has three functions:
• Removes moisture from the refrigerant using a desiccant
• Filters the refrigerant to remove system contaminants
• Stores the refrigerant to cope with varying system refrigerant demands
4. The filtered liquid refrigerant, still at high pressure, then enters the expansion valve (4). Here it passes through a
controlled orifice and emerges as an atomised liquid
spray. This has the effect of reducing the refrigerant
pressure and temperature. The cold refrigerant spray
now flows into the evaporator (5).
5. As refrigerant passes through the evaporator core, it cools the incoming airflow. Heat is absorbed by the
refrigerant, during this process and it once again changes
state, from an atomised cool liquid into a vapour. The
refrigerant vapour then returns to the compressor for the
cycle to be repeated.
An automatic safety valve is incorporated in the compressor,
which will open if the system pressure rises above 41 bar.
The valve will reseat when the pressure drops below 27,6
bar. When the safety valve is open, the compressor will 'free
Warning
The refrigerant container is highly pressurized. If it is subjected to high heat, it could explode, scattering metal fragments and liquid refrigerant that can
seriously injure personnel. Store refrigerant at
temperatures below 40
oC (104 oF).
Caution
If an insufficient refrigerant level is detected while
troubleshooting, do not char ge (add) the refrigerant.
Because an accurate amount of refrigerant cannot be
determined from the pressure indicated on the
recovery / recycling / rechar ging unit, never charge the
refrigerant.
Caution
If there is too much or to o little refrigerant from the
refilling, there may be secondary problems such as
damage to the refrigerant cycl e parts, or a decrease of
cooling performance. Therefore, if it is determined that the refrigerant level is insufficient, completely remove refrigerant from the refriger ant cycle and refill with
refrigerant to the specified amount.
Caution
Use only ND8 compressor oil for this vehicle. Using a PAG oil other than DENSO OIL8 compressor oil will damage the A/C compressor.
Caution
Do not spill the ND8 compressor oil on the vehicle. A drop of compressor oil on the vehicle surface can
damage the paint work. If oil gets on the vehicle, wipe it off immediately.
Caution
ND8 compressor oil has a high moisture absorption
efficiency. If moisture mixe s with the compressor oil,
the refrigerant system could be damaged. Ensure caps
are installed immediately afte r using the compressor oil
or removing refrigerant system parts to prevent moisture absorption.

 
 


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Air Conditioning (A/C) System (12.03)
Climate Control (12.00)
May 2007 Workshop Manual 12-3-5
wheel' and the excess pressure will be dissipated through the
expansion valve. When the pressure drops below 27.6 bar,
the safety valve will close again and the compressor will be
operative.
The terms ‘high’ and ‘low’ pressure (or side) refer to the
pressure differential between the compressor and expansion
valve ports. This differential is critical to system fault
diagnosis and efficiency checks.
The high side starts at the compressor and includes the
trinary switch, condenser, receiver drier and expansion
valve.
The low side starts at the expansion valve outlet and includes
the evaporator and all connectio ns back to the compressor.
The trinary switch (6) monitors system pressure between the
compressor and condenser. If the pressure rises above 30
bar or falls below 2 bar the compressor clutch is
de-energised to prevent damage to system components.
Specifications
Refrigerant and Lubricant
Capacities
Torque Figures
Refrigerant R-134a
Compressor Lubricant ND8
Refrigerant charge Weight 750g (26.5oz.)
Compressor Lubricant Sealed volume (approx.
quantity) 150 cc (pre-charged)
Nm.
AC unit Mounitng 20-25
Compressor Mounting 23-27
A/C pipes to condenser 8-10







AML EOBD System Operation Summary

Rory O’Curry Aston Martin Lagonda CONFIDENTIAL 1 May 2009
rocurry@astonmartin.com AML EOBD Monitors 07 ROC.doc Page 23 of 43
SAIR System Monitor – Flow Check

When the air pump is energized, the MAF sensor will show a corresponding increase in airflow. The
SAIR pump flow check monitors the MAF sensor signal and two air flow models during normal
secondary air system operation to determine if secondary air is being delivered into the exhaust system.
The SAIR pump flow test compares the actual change in MAF during the pump on and off transitions to
the expected change in airflow from the secondary air fl ow model. (A throttle body flow model is used to
"zero out" errors in the air meter and to compensate fo r transient driving conditions.) The actual airflow is
divided by the expected airflow to calculate an "On flow ratio" and an "Off flow ratio".

A flow ratio that is much less than 1.0 means that the air pump has no/low flow, or the inlet hose to the
pump is disconnected. If secondary air system operation ex tends into closed loop fuel, fuel trim feedback
is used to discriminate between low pump flow and in let hose disconnection. A low flow ratio with a lean
fuel system indicates a disconnected inlet hose. A flow ratio significantly higher than 1.0 (and/or a rich
fuel system indication) indicates that th e outlet hose from the pump is disconnected.

SAIR Diagnostic


The V8 uses the standard FORD non-intrusive monitor that has been adapted for use on a V-engine. The
detection capability is detailed below with the V8 specific modifications highlighted

P0410 - Pump inlet hose disconnection.

P0491 - Low airflow into the exhaust on Bank1. Blocked hose OR failed to open vacuum valve.

P0492 - Low airflow into the exhaust on Bank 2. Blocked hose OR failed to open vacuum
valve.

P2448 - Low airflow into the exhaust on Bank1. Disconnected outlet hose.

P2449 - Low airflow into the exhaust on Bank 2. Disconnected outlet hose.

P0412 - SAIR electrical circuit fault high/low on ecu control pin.

P2257 - SAIR electrical circuit fault high on monitor pin.

P2258 - SAIR electrical circuit fault low on monitor pin.

The determination of which bank is receiving low ai rflow is performed by monitoring the closed loop
fuelling correction supplied from the oxygen sensors. The bank that has the highest enleaning correction is
the bank that has the lowest SAIR flow. If closed loop fuelling is not active when the SAIR pump is
disabled the diagnostic cannot determ ine which bank is receiving low flow and so a fault on both banks is
raised.

The relative difference between the commanded lambda values for each bank is used to determine a
restricted flow to either bank1 or 2 due to a restricted outlet. This enables P0491, P0492 to be raised if the
flow ratio is calculated as in range.

The SAIR functional tests run when SAIR is active and the results are stored until the HEGO monitor has
completed (150-200 seconds after SAIR is off on a typical FTP74). It is only when the HEGO monitor has
completed successfully that any functional SAIR fa ults and SAIR monitor complete is reported.

AML EOBD System Operation Summary

Rory O’Curry Aston Martin Lagonda CONFIDENTIAL 1 May 2009
rocurry@astonmartin.com AML EOBD Monitors 07 ROC.doc Page 25 of 43

VCT Monitor

Variable Cam Timing System Monitor
VCT Hardware

Variable Cam Timing (VCT) enables rotation of the camshaft(s) relative to the crankshaft (phase-shifting)
as a function of engine operating conditions. Intake Only (phase-shifting only the intake cam) is used in
the AML application.

VCT is used primarily to increase internal residua l dilution at part throttle to reduce NOx, and to
improve fuel economy. With Intake Only VCT, the in take camshaft is advanced at part throttle and WOT
(at low to mid-range engine speeds) to open the in take valve earlier for increased residual dilution and
close the intake valve earlier in the compression stroke for increased power. When the engine is cold,
opening the intake valve earlier warms the charge which improves fuel vaporization for less HC
emissions; when the engine is warm, the residua l burned gasses limit peak combustion temperature to
reduce NOx formation.

The VCT system hardware consists of a contro l solenoid and a pulse ring on the camshaft. The PCM
calculates relative cam position using the CMP input to process variable reluctance sensor pulses coming
from the pulse ring mounted on the camshaft. Each pul se wheel has N + 1 teeth where N = the number of
cylinders per bank. The N equally spaced teeth are used for cam phasing; the remaining tooth is used to
determine cylinder # 1 position. Relative cam position is calculated by measuring the time between the
rising edge of profile ignition pickup (PIP ) and the falling edges of the VCT pulses.

VCT Diagnostic

The PCM continually calculates a cam position error value based on the difference between the desired
and actual position and uses this information to cal culate a commanded duty cycle for the VCT solenoid
valve. When energized, engine oil is allowed to flow to the VCT unit thereby advancing and retarding cam
timing. The VCT logic calculates the instantaneous va riance in actual cam position (the squared difference
between actual cam position and commanded cam position), then calculates the long term variance using a
rolling average filter (Exponentially Weighted Moving Average).
If the VCT system is stuck or operates with an consta nt error relative to the target position, the monitor
will detect a variance which will quickly accumulate. There are three variance indices that monitor cam
variance in the retard direction, the advance directi on, and for V engines, the difference between banks. If
any variance index is greater than the malfunction threshold, a VCT target error malfunction will be
indicated (P0011, P0012 Bank 1, P0021, P0022 Bank 2).

The VCT solenoid output driver in the PCM is check ed electrically for open circuit and shorts (P0010
Bank 1, P0020 Bank 2).
VCT Monitor Operation: