brake fluid ASTON MARTIN DB AR1 Q 2003 Owners Guide

xi
Regular Checks
In the interests of safety and reliability, it is advisable to carry out the
following checks at the intervals suggested (more frequently if the vehicle is
heavily used or operating in adverse conditions), and always before starting
on a long journey. Refer to the Owner Maintenance section of this guide.
Each Day
Check that there is sufficient fuel for the intended journey, particularly at
night and before entering highways.
Weekly - (Daily if covering high mileage or touring)
Tyres - Check the tyres, including the spare (if fitted) for condition and
pressure. See the 'Specifications' section for the recommended tyre pressures.
Lights - Check that all exterior lights and direction indicators function
correctly and that the lenses are clean.
Engine Oil - With the vehicle standing on level ground, check the oil level
and top up if necessary with oil of the correct grade.
Engine Cooling System - With the engine cold, check the level of the engine
coolant. Top-up if necessary with coolant containing the required percentage
of anti-freeze. Any significant coolant loss should be investigated by your
Aston Martin Dealer.
Brake Fluid - Check the level of the fluid in the brake reservoir. Top-up if
necessary with the specified brake fluid from a new unopened container.
Power Steering Fluid - Check and top-up the level of fluid in the power
steering reservoir with fluid of the correct specification.
DB AR1 Owners Guide

xii
DB AR1 Owner's Guide
Monthly
Windscreen Washer - Top-up with the recommended windscreen wash
fluid. Check the operation of the windscreen washers. Use the recommended
concentration of additives to prevent freezing in winter conditions. Check
the windscreen wash fluid level more frequently if the wash system is being
heavily used.
Safety Warning
Engine exhaust, some of its constituents, and certain vehicle components contain
or emit chemicals known to the state of California to cause cancer, and birth
defects or other reproductive harm. In addition, certain fluids contained in
vehicles and certain products of component wear contain or emit chemicals
known to the state of California to cause cancer, and birth defects or other
reproductive harm.
Glossary of Terms
The following glossary contains frequently used alternative names or
spellings for vehicle components mentioned in this Owner's Guide:
Bonnet Hood
Boot Trunk
Brake Disc Rotor
Handbrake Parking Brake
Petrol Gasoline
Tyre Tire
Wing Fender
Windscreen Windshield

B - Controls
1-B-6
Information/Warning Lights
Ignition Warning Light (Red)
Illuminates when the ignition is switched on. Extinguishes when
the engine is started and battery charging commences.
Brake Warning (Red)
Illuminates when the brake fluid level is low. May
illuminate with the ABS Warning Light.
Note: When the ignition is turned on, the Brake warning light will illuminate
briefly and extinguish if the brake fluid level is within specification.
Parking Brake Warning (Red)
Illuminates when the parking brake is applied
with the ignition On.
Low Coolant Level (Red)
Illuminates if the level of the engine coolant in the header is
tank is low.
Oil Pressure Warning Light (Red)
Illuminates when the engine oil pressure falls below minimum.
Do not continue driving if this light remains illuminated.
Consult your Dealer immediately.
Seat Belt Warning (Red)
This warning lamp will illuminate and a chime will sound if the
driver's seat belt is not fastened when the ignition is switched
on.
Hazard Warning (Red)
Flashes in time with the external indicator lamps when the
hazard warning lamps are switched on.

B - Controls
1-B-9 Headlights (Blue)
Shows when the main beam of the headlights are in use.
Instrument Pack Chime
A warning chime will sound briefly to attract your attention if any of the
following warning lamps illuminate - ABS, Low brake fluid, Low coolant
level, Low fuel level, Low oil pressure, Boot open or a Frost warning.
The warning will be repeated each time the ignition is switched on until the
cause is cleared.
Instrument Panel Illumination
The level of instrument illumination can be adjusted using the rotary control
on the left hand side of the steering column.

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-22
Brake Warning Indications During Driving
Your DB AR1 electronic control units continue to monitor correct operation
of the braking sub-systems while the vehicle is being driven. Two brake
warning lights are of particular importance.
The Anti Lock Braking (ABS) Warning Light
The ABS system is monitored for correct operation while the
ignition is switched on. If a fault is detected, the Anti-Lock
warning light will illuminate and the ABS system will be partly
or fully disabled.
The normal braking system will continue to function without anti-lock but
with full vacuum boosted braking to all road wheels being maintained. In
the event of an ABS fault, consult your Aston Martin Dealer immediately.
WARNING: If the ABS warning light illuminates, you should be aware that
wheels could lock during extreme braking or when braking on slippery surfaces.
Take additional care to avoid the danger of wheels locking.
The Brake System Warning Light
The braking system is continuously monitored for fluid level.
If only the brake warning light illuminates, it indicates that the
brake fluid has fallen below the acceptable level. It is essential
that the braking system is checked immediately, preferably
by an Aston Martin Dealer.
WARNING: If the brake warning light illuminates, you should
immediately be prepared for possible increased stopping distances
and possible partial failure of the braking system.

F - Owner Maintenance
1-F-5
Dangerous Substances
WARNING: Many liquids and other substances used in motor vehicles are
poisonous and should under no circumstances be consumed and should, so far
as possible, be kept from contact with the skin. These substances include battery
electrolyte, antifreeze, oil, brake and clutch fluid, petrol, windscreen washer
additives, lubricants, refrigerant and various adhesives. Particular care should
be taken to avoid unnecessary contact with used engine oil. Always read carefully
the instructions printed on labels or stamped on components and follow them
carefully. Such instructions are included for reasons of your health and personal
safety. Never disregard them. Dangerous substances should be kept out of reach
of children.
Engine Oils
WARNING: Prolonged and repeated contact with used engine oils can cause
serious skin disorders, including dermatitis and cancer. Avoid excessive contact,
wash thoroughly after contact. Keep out of reach of children. When your oil is
changed, be sure that it is done by an experienced person. In addition, observe
all laws regarding the disposal of waste oil and toxic fluids.
Protect The Environment
WARNING: It is illegal to pollute drains, water courses, or soil. Use authorised
waste disposal facilities, including civic amenity sites and garages providing
facilities for receipt of used oil. If in doubt, contact your local authority for advice.
Fuel Tank Filling
WARNING: Petrol is highly flammable and, in confined spaces, is also explosive
and toxic. In the event of spillage, switch off the engine, use no naked flame or
light. Do not smoke. Do not inhale fumes.

F - Owner Maintenance
1-F-6
Fluid Level Checks
Engine Bay Component Location (Right Hand Drive Illustrated)
1 Engine Oil Dipstick 2 Engine Coolant Header Tank
3 Engine Oil Filler Cap 4 Power Steering Fluid Reservoir
5 Brake Fluid Reservoir 6 Windscreen Washer Fluid Reservoir
7 Clutch Reservoir (Man) 8 Engine Bay Covers
Note: Items 5 &7 move to the left corner on left hand drive cars.
In the following descriptions, numbers in parenthesis, e.g. (1), refer to the
numbered items in the diagram and list above.
All directions are described as viewed from the driver's seat. Thus the oil filler cap
(item 3) is on the left side of the car, the brake fluid reservoir (item 5) is on the right
side of the car.

F - Owner Maintenance
1-F-11
Brake Fluid Reservoir
The brake fluid reservoir (5) is fitted to the driver's side of the engine
compartment on top of the brake master cylinder assembly.
Before removing the cap, clean the cap and the surrounding area thoroughly
to prevent ingress of dirt and foreign matter. Top up to the indicated level
on the reservoir with the recommended brake fluid (see 'Specifications') and
refit the cap securely.
Brake fluid will absorb water vapour and must be replaced every two years
in order to maintain the efficiency of the hydraulic system.
WARNINGS: Do not drive the vehicle if the brake fluid level is low. Use only new
DOT4 brake fluid from air tight containers.
Avoid touching the sides of the engine when working in the engine compartment.
The exhaust system will be hot if the engine has recently been run.
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.