manual transmission ASTON MARTIN DB AR1 Q 2003 Owners Guide

C - Driving
1-C-6
Warning Light Indications at Ignition On
As the ignition is switched on, the DB AR1 electronic control units each
complete a self check to ensure correct operation. During these checks, the
warning lights on the instrument panel will illuminate as follows:
• Bulb Check - All warning lamps illuminate for about three seconds as a
bulb check. (The Sport and Transmission Fail lamps are not illuminated
on manual transmission vehicles).
• The Ignition and Oil Pressure warning lights illuminate until the engine
starts.
• The Check Engine light will illuminate during the engine management
self-check and will extinguish when the starter button is pressed.
• The Seat Belt warning light illuminates and a gong sounds for six seconds
if the driver's seat belt is not fastened. On fastening the seat belt, the gong
immediately ceases. The warning lamp extinguishes at the end of the six
second warning period.
• The ABS and Traction Control warning lights illuminate and extinguish
if the system self checks are satisfactory.
• The Brake warning light will illuminate and extinguish if the brake fluid
level is within specification.
• The SRS Airbag warning light will illuminate and extinguish if the SRS
Airbag control system check is satisfactory.
Only the handbrake (parking brake) warning light should stay on after the
engine has started and is running correctly. The handbrake warning light will
extinguish as the handbrake is fully released.
Note: Other Information lights may remain on (e.g. Main Beam Warning or Low
Screen Wash) dependant on the vehicle state and switch settings at the time.

C - Driving
1-C-7 If either the ABS or Brake Fluid Warning lights remain illuminated, refer to
the description of Brake Warnings during Driving later in this section.
Starting the Engine - Hot or Cold
WARNINGS:
Before driving the vehicle, ensure that you are wearing appropriate footwear to
efficiently operate the floor mounted pedals.
Ensure that floor mounted pedal movement is not restricted by floor mats or
other objects trapped beneath the pedals.
Manual Transmission - The engine can only be started with the clutch
pedal fully depressed.
Touchtronic Transmission - The engine can only be started when the gear
selector lever is in Park or Neutral.
Place the gear selector lever in Neutral (Park on Touchtronic vehicles) and
check that the handbrake is applied. Fully depress the clutch pedal on
manual transmission vehicles.
Insert the ignition key and rotate it to position II. Press the
starter button, wait until the engine fires, then release the
starter button.
Note: Do not press the accelerator during engine starting. The Electronic Engine
Management System automatically compensates for cold or hot start conditions
and makes appropriate adjustments to the fuel/air mixture and engine idle speed
without driver intervention.

C - Driving
1-C-9
Running-In
Your DB AR1 engine is fully hot tested during manufacture and no special
running-in procedures are necessary. Nevertheless it is prudent to limit
engine loads (e.g. by using lower gears on steep hills) during the first 4,000
km (2500 miles).
Maximum Engine Speed - Fuel Cut-Off
The maximum safe engine speed is 7,000 RPM on manual transmission
vehicles (6,400 RPM on auto and touchtronic transmission cars). If this
speed is exceeded, fuel supply to the engine is gradually reduced. As the
engine speed reduces back to a safe level, fuel supply is progressively
restored.
Driving in Wet Conditions
When driving in wet conditions, water can build up under your tyres so that
they ride on a layer of water. This is called aquaplaning or hydroplaning.
When this happens, you have little or no control. Aquaplaning is more prone
to happening at higher road speeds if there is a lot of water on the road and
particularly if the tyres are also under inflated or approaching minimum
tread depth. Slow down when it is raining.
It is important to take bends or curves at a safe, reasonable speed,
particularly when driving on wet or slippery road surfaces.
Rapid acceleration or deceleration can cause loss of control, especially on
slippery surfaces. Use extra care when driving on such surfaces.

C - Driving
1-C-10
Gear Changing
When operating either the DB AR1 manual or Touchtronic transmission
systems, the following warnings are of particular importance:
WARNING: Do not skip one or more gears when downshifting, you could lose
control of the vehicle and injury could result.
WARNING: Shifting without correct operation of the clutch and throttle can
result in severe damage to the transmission and engine.
Gear Changing - Manual Transmission
The gear lever for the six speed manual transmission is spring biased to the
centre of the gate. Push to the left before selecting first or second gears and
to the right before selecting fifth or sixth gear.
Press fully to the right and forwards to overcome additional spring pressure
when selecting reverse gear. The reverse gear position has a solenoid lock
to prevent accidental engagement when driving forward.
13
4
25
R
6

C - Driving
1-C-15 When at a standstill, Touchtronic mode is engaged by pushing the lever
forward or by pressing the '+' button on the steering wheel. The gearbox
controller will always initially select 2nd gear. If first gear is required, it may
be selected by pulling the lever rearwards or by pressing the - button on the
steering wheel.
When Touchtronic mode is engaged whilst driving, the transmission will
remain in the current gear. Gearshift control will revert from automatic to
manual control.
Touchtronic mode may be deselected whilst driving by moving the selector
lever to the right. The transmission will revert to Automatic mode and may
shift to a more appropriate gear.
Minimum Upshift Speeds
The transmission controller will only allow upshifts when vehicle speed is
above the following minimum limits:
Upshifts enabled 2nd to 3rd gear above 15 km/h (10 mph)
3rd to 4th gear above 35 km/h (22 mph)
4th to 5th gear above 52 km/h (32 mph)
During deceleration, if road speed falls below the minimum limit for each
gear, the transmission will automatically downshift to eliminate the possibility
of the engine stalling.
Gearshift Inhibit
In Touchtronic mode, any attempted gearshift which would cause the
engine speed to rise over 6,500 rpm, or fall below 1,300 rpm will be
prevented by the transmission controller.

F - Owner Maintenance
1-F-9
Clutch Fluid Reservoir
The clutch fluid reservoir (7) is fitted to the drivers side of the engine
bulkhead on manual transmission cars only.
Before removing the filler cap, clean it and the surrounding area to prevent
any ingress of dirt or foreign matter into the system. Top up the reservoir
using only the recommended fluid until the fluid level is at the maximum
mark. (see 'Specifications').
Caution: Take care that hydraulic fluid does not contact the paint work during the
topping up operation. Serious paint work damage can result. If a spillage does occur,
immediately flush the hydraulic fluid from the paint work with clean, fresh water and
then wipe with a clean damp cloth.

F - Owner Maintenance
1-F-28
Suspended Towing
Do NOT tow with sling-type equipment since damage to the bodywork may
result.
Take care when using 'spectacle frame' type towing equipment that the
towing device is well clear of the front or rear apron. Body damage may
occur if the vehicles pass over uneven road surfaces.
Adhere to Towing Regulations
In certain countries the registration number of the towing vehicle and an ON
TOW sign or warning triangle must be displayed in a prominent position at
the rear of the vehicle being towed.
Front Suspended Tow
Caution: To prevent body damage ensure an adequate clearance is
maintained between the car body and (1) the ground and (2) the 'spectacle
frame' of the towing vehicle while your car is being towed.
1. Remove the ignition key from the ignition.
2. Vehicles with manual transmission: Place the gear lever in neutral.
Vehicles with automatic transmission:
Disconnect the propeller shaft at the final drive input flange.
Ensure that the propeller shaft is firmly secured away from the final drive
input flange.

G - Specifications
1-G-1
Contents
Body ................................................................................................. 1-G-2
Engine ............................................................................................... 1-G-2
Power and Torque Graphs ................................................................. 1-G-3
Transmission - Manual....................................................................... 1-G-4
Transmission - Automatic ................................................................... 1-G-4
Final Drive ......................................................................................... 1-G-4
Steering ............................................................................................. 1-G-4
Suspension........................................................................................ 1-G-5
Brakes ............................................................................................... 1-G-5
Towing .............................................................................................. 1-G-5
Wheels and Tyres .............................................................................. 1-G-6
Exterior Features ................................................................................ 1-G-7
Interior Features ................................................................................ 1-G-7
Lights ................................................................................................ 1-G-8
Exterior Dimensions and Clearances.................................................. 1-G-9
Interior Dimensions .........................................................................1-G-10
Weights ........................................................................................... 1-G-10
Capacities........................................................................................ 1-G-11
Recommended Fluids ......................................................................1-G-12

G - Specifications
1-G-3
Power and Torque Graphs
Note: 84% of maximum torque is produced at only 1500 rpm
450
400
350
300
250
200
150
100
5050 100 150 200
250 300 350
POWER
Power Torque
TORQUE
Automatic Transmission
DBAR1 V12 Engine
Kw Nm Lb/ft BHP
200
0 12345 67
Engine Speed rpm
x100010
0
200
300
400
350 400
500 600
450
500
400
350
300
250
200
150
100
5050 100 150 200
250 300 350
POWER
Power Torque
TORQUE
Manual Transmission
DBAR1 V12 Engine
Kw Nm Lb/ft BHP
200
01 2 3 4 5 6 7
Engine Speed rpm
x100010
0
200
300
400
350 400
500 600

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)