2003 ASTON MARTIN DB AR1 Q differential

D - Heating, Ventilation & Air Conditioning
1-D-6Defrost (A/C Off)
In defrost mode, the system is automatically switched
to high fan speed and maximum heat with no air
conditioning. The hot air is directed to the screen and
door vents only. The door vents may be closed to
direct maximum air flow to the screen.
Right Panel (A/C Mode Switch)
The right panel contains the mode switch and temperature differential
controls.
The mode switch settings are:
Economy (A/C off)
Manual Control
Auto Control
Demist
Recirculation
ECON (Economy)
In the ECON position, the air conditioning compressor is switched off.
Incoming air can be heated if required and the fan speed can be adjusted
to increase or decrease the airflow in the vehicle. This mode puts minimum
load on the engine and gives the best fuel economy with no air conditioning
(no cooling or dehumidifying of incoming air).

D - Heating, Ventilation & Air Conditioning
1-D-9
Temperature Differential Control
This control sets the difference in temperature
between the air from the face vents and that from
the footwell vents.
To provide cooler air to the face, the differential
control should be set fully anticlockwise. If the
control is set fully clockwise, the air from the face
vents will be at the same temperature as that from
the footwell vents.
The differential control is only effective when the
temperature control is set to its mid position.

G - Specifications
1-G-4
Transmission - Manual
Tremec T 56 six speed transmission
Gear Ratios
1st 2nd 3rd 4th 5th 6th Reverse
2.66:1 1.78:1 1.30:1 1.00:1 0.79:1 0.62:1 2.9:1
Transmission - Automatic
ZF 5HP-30 five speed automatic transmission with manual gearshift control
using the special selector lever or steering wheel mounted gear shift buttons.
Gear Ratios
1st 2nd 3rd 4th 5th Reverse
3.55:1 2.24:1 1.54:1 1.00:1 0.79:1 3.68:1
Final Drive
GKN Powerlock limited slip differential.
Ratios Manual = 4.09:1 Auto = 3.06:1
Steering
Rack and pinion power-assisted steering. 2.76 turns lock to lock.
Column tilt and reach adjustments.
Turning Circle Kerb to Kerb - 11.4 metres
Wall to Wall - 11.8 metres
Toe-In 0° + 5' front, 0° 12' ± 6' rear
(at half laden ride height of 137 mm front, 141 mm rear)

2-A-5
A - Service Schedules
Pre-delivery Inspection (PDI)
Before you receive your DB AR1, it will undergo a comprehensive pre-
delivery inspection at the Dealer's premises to ensure that it meets Aston
Martin's quality standards. The following checks will be made:
Levels and Leaks
Engine oil
Power steering oil
Brake Fluid
Clutch fluid (manual only)
Engine coolant level
Engine coolant specific gravity
Windscreen washer fluid
Fuel system
Gearbox oil/Auto transmission fluid
Rear axle oil - Differential
Battery
Mechanical Functions
Auto transmission
Selection and P & N functions
Manual gear selection
Clutch operation (manual only)
Throttle pedal operation
Parking brake operation
Steering column adjustment and lock
operation
Seat adjuster rails
Bonnet (Hood) release and catch
Door operation and locks
Storage compartments
Rear view mirror
Wheels and Tyres
Road wheel nuts
Tyre pressures
Front wheel tracking
Electrical Checks
Battery condition
Heated windscreen
Windscreen washers
Windscreen wipers
Air-conditioning controls
Gauges and warning lights
Radio/Cassette/CD player
Navigation (where fitted)
All speakers
Electric aerial
Inertia switch
Window mechanisms
Side and headlights (main and dip)
Front fog lights
Rear fog lights (where fitted)
Hazard warning lights
Instrument illumination and dimmer
Air conditioning panel illumination
Auto Trans. PRNDL illumination
Horns
Interior/map lights
Cigar lighter
Seat adjustment - all functions
Door mirror adjustments
Reset clock (if necessary)
Door / boot courtesy lights
Central locking system
Filler flap lock operation
Seat belt operation
Seat belt warning system
Security system / Remote control
Clutch pedal start inhibit
Interrogate DTC codes (not N.
America)
Record battery open-circuit voltage

A - Service Schedules
2-A-6
Road Test
Engine
Clutch (manual only)
Manual transmission
Auto transmission
Rear axle differential
Steering
Brakes
Wheel balance
Dampers
Noise vibration or harshness
Air conditioning performance
Instruments operation
Seat belt and buckle operation
Steering wheel alignment
Traction control
Final Checks
Drive belt tensions
Fuel / brake pipe security
Fuel / fluid leaks
Cooling systems hose security
Exhaust catalyst security
Hand-over Preparation
Assemble / Check function of all keys
and key fobs
Clean bodywork
Clean off all transit labels
Valet Vehicle
Degrease windscreen
Fit carpets
Remove interior protection
Check Owner's Guide/Quick Guide
Check tools
Install license plates

Index
5-A-1
Index
A
ABS Warning Light 1-C-22
Adjustments Before Driving 1-A-7
Air Conditioning System 1-D-2
Defrost 1-D-6
Door Mounted Vents 1-D-4
Face Level Vents 1-D-3
Fan Speed Control 1-D-5
Heating/Cooling 1-D-2
Internal Air Flow 1-D-3
Mode Switch 1-D-6
Temperature Control 1-D-5
Temperature Differential Control 1-D-9
Ventilation 1-D-3
Airbags
Child Seats - Passenger Airbags 1-A-20
Alarm
Key Fob 1-A-3
Locking the DB AR1 1-A-4
The Security System 1-A-3
Turning off the Alarm 1-A-4
Turning on the Alarm 1-A-4
Unlocking the DB AR1 1-A-4
Anti-Lock Braking System (ABS) 1-C-21
Ashtray 1-B-22
Automatic Locking Retractors 1-A-15
B
Battery
Battery Conditioner 1-F-33
Battery Disconnect Switch 1-F-32
Electrical Start from Another Vehicle 1-F-36
Quiescent Battery Drain 1-F-31
The Battery Reconnect Switch 1-F-35
Boot (Trunk) Lock Control 1-E-6
Brake System Warning Light 1-C-22
Brake Warning Indications During Driving 1-C-21
Braking Systems 1-C-19
Bulb and Fuse Replacement 1-F-42