2003 Acura MDX maintenance

Two f actors normally contribute to
causing corrosion in your vehicle:Moisture trapped in body cavities.
Dirtandroadsaltthatcollectsin
hollows on the underside of the
vehicle stays damp, promoting
corrosion in that area.
Removal of paint and protective
coatings f rom the exterior and
underside of the vehicle. Repair chips and scratches in the
paint as soon as you discover them.
Inspect and clean out the drain
holes in the bottom of the doors
and body.
Check the f loor coverings f or
dampness. Carpeting and f loor
mats may remain damp f or a long
time, especially in winter. This
dampness can eventually cause
the f loor panels to corrode.Use a high-pressure spray to clean
the underside of your vehicle. This
is especially important in areas
that use road salt in winter. It is
also a good idea in humid climates
and areas subject to salt air. Be
caref ul of the ABS wheel sensors
and wiring at each wheel.
Have the corrosion-preventive
coatings on the underside of your
vehicle inspected and repaired
periodically.
Many corrosion-preventive measures
are built into your Acura. You can
help keep your vehicle f rom
corroding by perf orming some
simple periodic maintenance:
1.
2.
Corrosion Prot ect ion
Appearance Care357

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Specif ications
T echnical Inf ormation391
Tires Alignment Engine
Fuses
Battery Lights 60 W (HB3)
12 V
Size
Pressure60 psi (420 kPa , 4.2 kgf/cm
)
32 psi (220 kPa , 2.2 kgf/cm)
T155/90D16 110M P235/65R17 103T
Toe-in
Camber
Caster
1°53’0°50’ 0°50’
0.00 in (0.0 mm)
0.00 in (0.0 mm)
Type
BorexStroke
Displacement
Compression ratio
Spark plugs
10.0 : 1
211.8 cu-in (3,471 cm
)
3.50 x 3.66 in (89.0 x 93.0 mm)
Interior
Under-hood
12 V 51 W (HB4)
3CP
12 V 50 CP
12 V 51 W (HB4)
12 V 2 CP (3.8 W)
12 V 24 CP (27 W)
12 V 21 W/5 W
12 V 21 CP (18 W)
12 V 3 CP
12 V 21 W
12 V 6.2 W
12 V 7 W 5W
5W
1.1 W
3.8 W
Capacity 12 V
12 V
12 V
12 V
12 V
12 V 20 AH/5 HR
Water cooled 4-stroke SOHC,
V6 gasoline engine
Headlights
Front side marker lights
Front turn signal lights/
Parking lights
Fog light
Rear side marker lights
Rear turn signal/hazard lights
Brake/Taillights
Backup lights
License plate lights
High-mount brake light
Individual map lights
Cargo area light
Tailgate light
Vanity mirror light
Door light See page
384or the fuse label
attached to the dashboard.
See page 384or the fuse label
attached to the inside of the fuse
box door under the dashboard.
See page 383or the fuse box
cover.
See spark plug maintenance
section page 325 .
Front/Rear
Spare
Front/Rear
Spare Front
Rear
Front
Rear
Front
Front
Rear Driver’s side
Passenger’s side
High
Low

Î
ÎThe burning of gasoline in your
vehicle’s engine produces several by-
products. Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx) and hydrocarbons (HC).
Gasoline evaporating f rom the tank
also produces hydrocarbons. Con-
trolling the production of NOx, CO,
and HC is important to the environ-
ment. Under certain conditions of
sunlight and climate, NOx and HC
react to f orm photochemical ‘‘smog.’’
Carbon monoxide does not contri-
bute to smog creation, but it is a
poisonous gas. The United States Clean Air Act
sets standards f or automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
workandwhattodotomaintain
them. This section summarizes how
the emissions controls work.
Scheduled maintenance is on page
.
In Canada, Acura vehicles comply
with the Canadian emission
requirements, as specif ied in an
agreement with Environment
Canada, at the time they are
manuf actured.
Your vehicle has a Positive
Crankcase Ventilation System. This
keeps gasses that build up in the
engine’s crankcase f rom going into
the atmosphere. The Positive Crank- case Ventilation valve routes them
from the crankcase back to the
intake manif old. They are then
drawn into the engine and burned.
The Onboard Ref ueling Vapor
Recovery (ORVR) system captures
the f uel vapors during ref ueling. The
vapors are adsorbed in a canister
f illed with activated carbon. While
driving, the f uel vapors are drawn
into the engine and burned of f . As gasoline evaporates in the f uel
tank, an evaporative emissions
control canister f illed with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is of f . Af ter
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
296
The Clean Air Act
Crankcase Emissions Control
System
Onboard Ref ueling Vapor
Recovery Evaporative Emissions Control
System
Emissions Cont rols
T echnical Inf ormation397

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*
Valid only f or sales within the U.S. Canadian owners should contact their authorized Acura dealer.
T he publications shown below can be purchased f rom Helm
Incorporated. You can order in any of three ways:
Detach and mail the order f orm on the right half of this page
Call Helm Inc. at 1-800-782-4356
Go online at
If you are interested in other years or models, contact Helm Inc. at 1-
800-782-4356
(credit card orders only)
Purchasing Factory Authorized Manuals (U.S. only)
Authorized Manuals
405
ORDER TOLL FREE: 1-800-782-4356
OR
(NOTE: For Credit Card Holder Orders Only)
MINIMUM CREDIT CARD PURCHASE $10.00
Publication
Form Number 61S3V02
61S3V02EL
61S3V30
31S3V620
31S3V820
31S3V900
31S3VQ00 ACU-R Form Description
2003 Acura MDX Service Manual 2001-03 Acura MDX
Electrical Troubleshooting Manual 2001-03 Acura MDXBody Repair Manual
2003 Acura MDX Owner’s Manual 2003 Acura MDX
Navigation Manual
2003 Acura MDX Maintenance Journal 2003 Acura MDX Quick Start Guide Order Form for Previous Years-
Indicate Year and Model Desired Price
Each
$69.00
$47.00
$44.00
$37.00
$29.00
$10.00
$10.00 FREE
PUBLICATION NUMBER VEHICLE MODEL
Name Year Qty
Price
Each Total
Price
GRAND TOTAL HANDLING CHARGE Mich. Purchases
Add 6% Sales Tax TOTAL MATERIAL
$6.00
Monday-Friday 8:00 A.M. 6:00 P.M. EST
By completing this form you can order the materials desired. You can
pay by check or money order, or charge to your credit card. Mail to
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Prices are subject to change without
notice and without incurring obligation.
Orders are mailed within 10 days. Please
allow adequate time for delivery.
Prices are subject to change without notice and without incurring
obligation. www. helminc. com

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#
) This manual complements the Service Manual by
providing in-depth troubleshooting inf ormation f or each
electrical circuit in your vehicle.
This manual describes the procedures involved in the
replacement of damaged body parts. This manual covers maintenance and recommended
procedures f or repair to engine and chassis components.
It is written f or the Journeyman mechanic, but is simple
enough f or most mechanically-inclined owners to under-
stand. Service Manual:
Electrical T roubleshooting Manual:
Body Repair Manual:
Authorized Manuals
406
NOTE: Dealers and Companies please provide dealer or company name,
and also the name of the person to whose attention the shipment should
be sent. For purchases outside U.S.A. please write to the address shown
below for a quotation.
P.O. BOX 07280·DETROIT, MICHIGAN 48207·1-800-782-4356
Customer Name Attention
Apartment Number
State & Zip Code
City
Daytime Telephone Number
Check or money order enclosed payable to Helm Inc U.S. funds only.
Do not send cash
Master
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Check here if your billing address is different
from the shipping address shown above.
Account Number Expiration: Mo. Yr.
CUSTOMER SIGNATURE DATE
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()
These Publications cannot be returned for credit without receiving advance authorization within 14
days of delivery. On returns, a restocking fee may be applied against the original order.

CONT INUED
BatteryCharging System ...........................
Indicator .68, 374
............................
Jump Starting .369
..............................
Maintenance .326
............................
Specif ications .391
..............................
Bef ore Driving .235
....................................
Belts,Seat .8,46
.........................
Beverage Holders .121 ...................................
Body Repair .358
Brakes ...........
Anti-lock System (ABS) . 263
.............
Break-in, New Linings . 236
...........................................
Fluid .319
....................
Bulb Replacement .344
.......................................
Parking .117
.................
System Indicator . 69,377
........................
Wear Indicators .262
.............................
Braking System .262
.................
Break-in, New Vehicle . 236
..
Brightness Control, Instruments . 82
........................
Brights, Headlights .79
...
Accessories and Modif ications . 243
................................
Accessories .243
...
Additional Safety Precaution . 244
............................
Modif ications .244
ACCESSORY (Ignition Key .......................................
Position) .93
............
Accessory Power Sockets . 125
....................
Additives, Engine Oil . 308
...............................
Airbag (SRS) .9, 50
.....................
Air Cleaner Element .321
..............
Air Conditioning System . 136
..............................
Maintenance .330
.....................
Rear A/C Control .142
.........................................
Usage .136
.......................
Air Outlets (Vents) .134
.......................
Air Pressure, Tires .332
.......................
Alcohol in Gasoline .395
.......
Aluminum Wheels, Cleaning . 353
......................................
Antif reeze .311
Anti-lock Brakes (ABS) ....................
Indicator Light .69, 264
...................................
Operation .263
..............
Anti-thef t, Audio System . 182
.
Anti-thef t Steering Column Lock . 92..........................
Appearance Care .351
................
Audio System . 149,163,183
...
Automatic Seat Belt Tensioners . 48
.........................
Automatic Lighting .80
...
Automatic Lighting Off Feature . 81
.............
Automatic Speed Control . 216
..............
Automatic Transmission . 253
..........................
Capacity, Fluid .390
...............
Checking Fluid Level . 317
.......................................
Shif ting .254
.
Shif t Lever Position Indicator . 253
................
Shif t Lever Positions . 254
....................
Shif t Lock Release . 257
...........................
Automatic Wipers .85
Index
A
B
I

CONT INUED
..................................................
Keys .90
.................
Jacking up the Vehicle . 364
.......................................
Jack, Tire .361
................................
Jump Starting .369
...
Identif ication Number, Vehicle . 388
Ignition ..............................................
Keys .90
...........................................
Switch .92
............
Timing Control System . 398
........................
Immobilizer System .91
.........
Important Safety Precautions . 6
.........
Indicators, Instrument Panel . 67
..................
Individual Map Lights . 130
.........................
Inf ant Restraint .27, 31
................................
Inf ant Seats .27, 31
...................
Inf lation, Proper Tire . 332
.................................
Inside Mirror .115
.............................
Inspection, Tire .334
........................
Instrument Panel .2 ,66
........
Instrument Panel Brightness . 82
...........................
Interior Cleaning .354
...............................
Interior Lights .128
........................................
Introduction . i.......................
Label, Certif ication .388
.................
Lane Change, Signaling . 83
..................
Lap/Shoulder Belts . 15,46
....................
Light Control Switch .128
.............................................
Lights .339
....................
Bulb Replacement .341
.......................................
Indicator .61
.......................................
Interior .128
.........................................
Parking .79
..................................
Turn Signal .83
.....................................
Load Limit .246
......
LOCK (Ignition Key Position) . 92
Locks .......
Anti-thef t Steering Column . 92
............................
Fuel Fill Door .237
..................................
Glove Box .100
....................
Lockout Prevention . 94
.................................
Power Door .93
........................
Low Coolant Level .241
.........................
Low Fuel Indicator .71 ...
Low Oil Pressure Indicator . 68,373
...
Lubricant Specif ications Chart . 390
.........................................
Luggage .245
..................................
Maintenance .293
...
Owner Maintenance Checks . 305
.................................
Record .303-304
......................
Required Indicator .76
..........................................
Saf ety .294
.............................
Schedule .296-302
.
Malf unction Indicator Lamp . 68,375
............
Manual Seat Adjustments . 103
...........
Memory, Driving Position . 118
...............................
Meters, Gauges .74
...................
Methanol in Gasoline . 395
........................
Mirrors, Adjusting .116
.......................................
Moonroof .114
......................
Closing Manually .378
...................................
Operation .114
Index
J L K
M
V

...................
Neutral Gear Position . 255
..................
New Vehicle Break-in . 236
...................
NOTICE, Explanation of . i
...............
Numbers, Identif ication . 388 ...................
Radiator Overheating . 371
Radio/Cassette/CD Sound .......................
System .145, 163,183
...............................
Rear A/C Unit .142
.......................
Rear Compartment .123
..
Rear Lights, Bulb Replacement . 344
..........................
Rear View Mirror .115
.................
Rear Window Def ogger . 88
.
Rear Window Wiper and Washer . 87
.....
Reclining the Seat Backs . 102,103
.........
Reclining the Second Seats . 104
..............
Reclining the Third Seat . 104
.............................
Reminder Lights .67
................
Remote Audio Controls . 181
.......................
Remote Transmitter .95
Replacement Inf ormation .................
Air Cleaner Element . 321
.......................................
Coolant .313
..............
Dust and Pollen Filter . 331
................
Engine Oil and Filter . 309
..........................................
Fuses .380
................................
Light Bulbs .341
....................................
Schedule .296
................................
Spark Plugs .323
...
Octane Requirement, Gasoline . 236
.........................................
Odometer .74
...............................
Odometer, Trip .75
Oil ........................
Change, How to .309
......................
Change, When to .296
......................
Checking Engine .240
..............
Pressure Indicator . 68,373
Selecting Proper Viscosity ......................................
Chart .308
...........
ON (Ignition Key Position) . 93
..
Operation in Foreign Countries . 396
............................
Outside Mirrors .115
....................
Overheating, Engine .371
.......
Owner Maintenance Checks . 305
.........................
Oxygenated Fuels .395 ..............................
Paint Touch-up .353
..............
Panel Brightness Control . 82
........................
Park Gear Position .254
...........................................
Parking .261
...............................
Parking Brake .117
.................................
Parking Lights .79
..
Parking Over Things that Burn . 399
.............................
PGM-FI System .398
..................
Polishing and Waxing . 353
..............
Power Seat Adjustments . 101
............
Pre-Drive Saf ety Checklist . 11
.........
Pregnancy, Using Seat Belts . 19
............................
Protecting Adults .12
...
Additional Safety Precautions . 19
.....
Advice f or Pregnant Women . 19
........................
Protecting Children .21
.......................
Protecting Inf ants .31
.......
Protecting Larger Children . 38
.........
Protecting Small Children . 35
Using Child Seats with .....................................
Tethers .42
.............................
Using LATCH .44
Index
N
O PR
VI