check engine Acura MDX 2003 Owner's Manua

Youshoulddothefollowingchecks
and adjustments every day bef ore
you drive your vehicle.Make sure all windows, mirrors,
and outside lights are clean and
unobstructed. Remove f rost, snow,
or ice. Check the adjustment of the seat
(see page ).
Check the adjustment of the
inside and outside mirrors (see
page ).
Check the adjustment of the
steering wheel (see page ).
Fasten your seat belt. Check that
your passengers have f astened
their seat belts (see page ).Turn the ignition switch ON (II).
Check the indicator lights in the
instrument panel.
Start the engine (see page ).
Check the gauges and indicator
lights in the instrument panel (see
page ).
Check that any items you may be
carrying with you inside are stored
properly or f astened down
securely. Visually check the tires. If a tire
looks low, use a gauge to check its
pressure. Check that the hood and tailgate
arefullyclosed. Makesurethedoorsandtailgate
are securely closed and locked.
3. 2.
1.
4. 5.
6.
7.
8.
9. 11.
12. 10.
15
115
89 252
67
101
Preparing to Drive
Driving251

Put a cloth on the edge of the Shif t
Lock Release slot cover next to
theshiftlever.Useasmallflat-
tipped screwdriver or small metal
plate (neither are included in the
tool kit) to remove the cover.
Caref ully pry on the edge of the
cover.Insert a screwdriver in the Shif t
Lock Release slot.
Push down on the screwdriver
while you press the release button
and move the shif t lever out of
Park to Neutral.
To release the Reverse Lockout,
move the shift lever from Neutral
to Reverse, then to Park.Remove the screwdriver f rom the
shif t lock release slot, then install
anewcover.
Depress the brake pedal and
restart the engine.
If you need to use the Shif t Lock
Release, it means your vehicle is
developing a problem. Have the
vehicle checked by your Acura
dealer.
3. 4.
5.6.
Automatic Transmission
Driving258
COVER
SHIFT LOCK RELEASE SLOT

When the brake pads need replacing,
you will hear a distinctive metallic
‘‘screeching’’ sound when you apply
the brakes. If you do not have the
brake pads replaced, they will begin
screeching all the time.
Constant application of the brakes
when going down a long hill builds
up heat and reduces their ef f ective-
ness. Use the engine to assist the
brakes by downshif ting to a lower
gear and taking your f oot of f the
accelerator pedal.
Check your brakes af ter driving
through deep water. Apply the
brakes moderately to see if they f eel
normal. If not, apply them gently and
f requently until they do. Since a
longer distance is needed to stop
with wet brakes, be extra cautious
and alert in your driving.
Your Acura is equipped with disc
brakes at all f our wheels. A power
assist helps reduce the ef f ort needed
on the brake pedal. The ABS helps
you retain steering control when
braking very hard.
Put your f oot on the brake pedal only
when you intend to brake. Resting
your f oot on the pedal keeps the
brakes applied lightly, causing them
to build up heat. Heat build-up can
reduce how well your brakes work. It
also keeps your brake lights on all
the time, conf using drivers behind
you.
All f our brakes have audible brake
wear indicators.
Your brakes may sometimes squeal
or squeak when you apply them
lightly. Do not conf use this with the
brake wear indicators. The
indicators make a very audible
‘‘screeching.’’ Brake Wear Indicators
The Braking System
Driving262

Your MDX can be towed behind a
motorhome at legal highway speeds
up to 65 mph (100 km/h). Do not
exceed 65 mph (100 km/h).
Otherwise, severe transmission
damage will occur. To avoid damage
to the 4WD system, it must be towed
with all f our wheels on the ground
(f lat towing).
When purchasing a tow bar, make
sure you select a reputable
manuf acturer and installer. Follow
the manufacturer’s attachment
instructions caref ully.If you tow more than 8 hours in one
day, you should repeat the above
procedure at least every 8 hours.
(when you stop f or f uel, etc.)
Do the f ollowing to prepare your
MDX f or ‘‘f lat towing.’’ Perf orm this
procedure every day immediately
bef ore you begin towing, and f ollow
this procedure exactly; otherwise,
severe automatic transmission
damage will occur. Check the transmission f luid level
(see page ). Maintaining the correct f luid level
is very important.
Start the engine.
Leave the ignition switch in
ACCESSORY (I) so the steering
wheel does not lock. Make sure
the radio and any items plugged
into the accessory power sockets
are turned of f so you do not run
down the battery. Release the parking brake. ShifttoD ,thentoN.Letthe
engine run f or three minutes, then
turn of f the engine. Press on the brake pedal. Shif t the
lever through all the positions (P,
R,N,D,D,D,2,1)
317
Do not overf ill.
5
543
CONT INUED
Ext ended T owing
Towing Your Vehicle Behind a Motorhome
Driving283

This section explains the importance
of keeping your vehicle well
maintained and why you should
f ollow basic maintenance saf ety
precautions.
This section also includes
Maintenance Schedules f or normal
driving and severe driving conditions,
a Maintenance Record, and instruc-
tions f or simple maintenance tasks
you may want to take care of
yourself .......................
Maintenance Saf ety .294
.
Important Safety Precautions . 295
.................
Maintenance Schedule . 296
...
Required Maintenance Record . 303
.......
Owner Maintenance Checks . 305
..............................
Fluid Locations .306
......................................
Engine Oil .307
..................................
Adding Oil .307
....................
Recommended Oil .307
..............................
Synthetic Oil .308
....................................
Additives .308
.....
Changing the Oil and Filter . 309
.............................
Cooling System .311
............
Adding Engine Coolant . 311
.......
Replacing Engine Coolant . 313
....................
Windshield Washers .316
....
Automatic Transmission Fluid . 317
..........................
Dif f erential Fluid .318
.............
Transf er Assembly Fluid . 318
....................................
Brake Fluid .319
............................
Brake System .319
..............................
Power Steering .320
.....................
Air Cleaner Element .321
....................................
Hood Latch .323
....................................
Spark Plugs .323
..............................
Replacement .323 ............................
Specif ications .325
...........................................
Battery .326
.................................
Wiper Blades .328
..............
Air Conditioning System . 330
..................
Dust and Pollen Filter . 331
.....................................
Drive Belts .331
....................................
Timing Belt .332
...............................................
Tires .332
......................................
Inf lation .332
..................................
Inspection .334
..............................
Maintenance .335
.............................
Tire Rotation .335
...
Replacing Tires and Wheels . 336
......................
Wheels and Tires .337
..........................
Winter Driving .337
.............................
Snow Tires .338
............................
Tire Chains .338
.............................................
Lights .339
.....................
Headlight Aiming .341
........................
Replacing Bulbs .341
....................
Storing Your Vehicle .349
If you have the skills and tools to per-
f orm more complex maintenance
tasks on your Acura, you may want
to purchase the Service Manual. See
page f or inf ormation on how to
obtain a copy, or see your Acura
dealer.
405
Maintenance
Maint enance293

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Follow the Normal Conditions
Maintenance Schedule if the
severe driving conditions
specif ied in the Severe
Conditions Maintenance
Schedule do not apply.
NOTE: If you only
drive under a
‘‘severe’’ condition, you should
f ollow the Normal Conditions
Maintenance Schedule.
Follow the Maintenance
Schedule f or Severe Conditions.
OCCASIONALLY
Maint enance
U.S. Owners
Canadian Owners
298
Visually inspect the following items:
See information on maintenance and emissions warranty, last column, page .
Necessary for proper break-in of the VTM-4 rear differential. miles x 1,000
km x 1,000
months
Service at the indicated distance or
time whichever comes first.
Tie rod ends, steering gear box, and boots
Suspension components
Driveshaft boots
Brake hoses and lines (including ABS)
All fluid levels and condition of fluids
Exhaust system
Fuel lines and connections 120,000 miles (192,000 km) or 10 years, then every
60,000 miles (96,000 km) or 5 years
Replace every 7,500 miles (12,000 km) or 1 year
Check oil and coolant at each fuel stop
Rotate tires every 7,500 miles (12,000 km)
15
24
12
Every 3 years (independent of mileage)
30
48
24
60
96
48
45
72
36 75
120 60 90
144 72 105
168
84 120
192
96
Replace engine oil
Replace engine oil filter
Check engine oil and coolant
Replace air cleaner element
Inspect valve clearance
Replace spark plugs
Replace timing belt , and inspect water pump
Inspect and adjust drive belts
Replace engine coolant
Replace transmission fluid
Replace VTM-4 rear differential fluid
Replace transfer assembly fluid
Inspect front and rear brakes
Replace brake fluid
Check parking brake adjustment
Replace dust and pollen filter
Rotate tires (Check tire inflation and condition at least
once per month)
:
1: Adjust only if noisy
297
1
Maintenance Schedule for Normal Conditions

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Maint enance299
Canadian owners: A, B, C, D
A
B
C
D
Follow the schedule for Severe Conditions.
Service at the indicated distance or time, whichever comes first. Do the items in as required for each distance/time interval. Follow this
schedule if the severe driving conditions described in the Severe Conditions Schedule on the next page do not apply.
Replace engine oil.
Rotate tires (follow pattern on page335).
Replace engine oil filter.
Inspect front and rear brakes.
Check parking brake adjustment.
Inspect tie rod ends, steering gearbox and boots.
Inspect suspension components.
Inspect driveshaft boots.
Inspect brake hoses and lines (including ABS).
Check all fluid levels, condition of fluids, and check
for leaks.
Inspect exhaust system .
Inspect fuel lines and connections .
Replace air cleaner element.
Inspect and adjust drive belts.
Replace dust and pollen filter.
Replace rear differential fluid.
7,500 mi/12,000 km
15,000 mi/24,000 km/1 yr
22,500 mi/36,000 km
30,000 mi/48,000 km/2 yrs
37,500 mi/60,000 km
3yrs
45,000 mi/72,000 km/3 yrs
52,500 mi/84,000 km
60,000 mi/96,000 km/4 yrs
67,500 mi/108,000 km
75,000 mi/120,000 km/5 yrs
82,500 mi/132,000 km
6yrs
90,000 mi/144,000 km/6 yrs
97,500 mi/156,000 km
105,000 mi/168,000 km/7 yrs
112,500 mi/180,000 km
120,000 mi/192,000 km/8 yrs
9yrs
120,000 mi/192,000 km/10 yrs
then every 60,000 mi/
96,000 km/5 yrs Do items in A.
DoitemsinA,B,D .
Do items in A.
DoitemsinA,B,C,D.
Do items in A.
Replace brake fluid (independent of mileage).
Replace transmission fluid.
Replace transfer assembly fluid. Do items in A,
B.
Do items in A.
DoitemsinA,B,C,D.
Do items in A. Replace transmission fluid.
Replace transfer assembly fluid. Do items in A,
B.
Do items in A. Replace brake fluid (independent of mileage).
DoitemsinA,B,C,D.
Do items in A. Replace timing belt , and inspect water pump.
Replace transmission fluid.
Replace transfer assembly fluid.
Inspect valve clearance.
Replace spark plugs. Do items in A, B.
Do items in A.
DoitemsinA,B,C,D. Replace brake fluid (independent of mileage).
Replace engine coolant.


See information on maintenance and emissions warranty, last
column, page .
Necessary for proper break-in of the VTM-4 rear differential.
Check engine oil and coolant at each fuel stop.
Check and adjust valve clearance, cold engine, only if noisy.
NOTE: :
1: 297
1
Maintenance Schedule for Normal Conditions (listed by distance/time)

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Driving less than 5 miles (8 km)
per trip or, in f reezing
temperatures, driving less than
10 miles (16 km) per trip.
Driving in extremely hot [over
90°F (32°C)] conditions.
Extensive idling or long periods
of stop-and-go driving.
Trailer towing, driving with a
roof top carrier, or driving in
mountainous conditions.
Driving on muddy, dusty, or de-
iced roads.
Follow the Severe Conditions
Maintenance Schedule if you drive
your vehicle
MAINLYunder one or
more of the f ollowing conditions:
Follow the Maintenance
Schedule f or Severe Conditions.
Maint enance
U.S. Owners
Canadian Owners
300
Visually inspect the following items:
Follow this schedule for rear differential
fluid replacement if you use your vehicle
for off-highway driving, trailer towing,
or mainly in stop-and go driving.
Otherwise, use the fluid replacement
schedule in the Maintenance Schedule
for Normal Conditions.
miles x 1,000
km x 1,000
months
Service at the indicated distance or
time whichever comes first.
Replace every 3,750 miles (6,000 km) or 6 monthsCheck oil and coolant at each fuel stop
Every 3 years (independent of mileage)
Rotate tires every 7,500 miles (12,000 km)
Every 7,500 miles (12,000 km) or 6 months
Tie rod ends, steering gear box, and boots
Suspension components
Driveshaft boots
Brake hoses and lines (including ABS)
All fluid levels and conditions of fluids
Exhaust system
Fuel lines and connections
Lights and controls
Vehicle underbody 120,000 miles (192,000 km) or 10 years, then every
60,000 miles (96,000 km) or 5 years
15
24
12
30
48
2445
72
3660
96
4875
120 60 90
144 72 105
168
84 120
192
96
Every 7,500 miles (12,000 km) or 6 months
Replace engine oil and oil filter
Check engine oil and coolant
Replace air cleaner element
Use normal schedule except in dusty
conditions
Inspect valve clearance
Replace spark plugs
Replace timing belt and inspect water pump
Inspect and adjust drive belts
Replace engine coolant
Replace transmission fluid
Replace VTM-4 rear differential fluid
Replace transfer assembly fluid
Inspect front and rear brakes
Replace brake fluid
Check parking brake adjustment
Replace dust and pollen filter
Lubricate all hinges, locks and latches
Rotate tires (Check tire inflation and condition at least
once per month) Adjust only if noisy
Refer to page332for replacement
information under special driving
conditions.
Refer to page 331for replacement
information under special driving
conditions.
See page 297.
1:
2:
3:
:
,1
3
2
Maintenance Schedule for Severe Conditions

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CONT INUED
Maint enance301
Canadian Owners U.S. Owners A, B, C, D
B
C A
D
Use the Maintenance Schedule for Severe Conditions.
3,750 mi/6,000 km
7,500 mi/12,000 km/6 mos
11,250 mi/18,000 km
15,000 mi/24,000 km/1 yr
18,750 mi/30,000 km
22,500 mi/36,000 km
26,250 mi/42,000 km
30,000 mi/48,000 km/2 yrs
33,750 mi/54,000 km
37,500 mi/60,000 km
41,250 mi/66,000 km
3yrs
45,000 mi/72,000 km/3 yrs
48,750 mi/78,000 km
52,500 mi/84,000 km
56,250 mi/90,000 km
60,000 mi/96,000 km/4 yrs
63,750 mi/102,000 km
67,500 mi/108,000 km
71,250 mi/114,000 km Refer to page to determine which schedule to use.
Service at the indicated distance or time, whichever comes first. Do the items in as required for each distance/time interval.
Replace engine oil and filter.
Inspect front and rear brakes.
Rotate tires (follow pattern on page335).
Inspect tie rod ends, steering gearbox and boots.
Inspect suspension components.
Inspect driveshaft boots.
Replace air cleaner element every 15,000 mi
(24,000 km) under dusty conditions. Otherwise, use
Normal Conditions schedule.
Replace rear differential fluid .
Check parking brake adjustment.
Lubricate all hinges, locks, and latches with
multipurpose grease.
Inspect brake hoses and lines (including ABS).
Check all fluid levels, condition of fluids, and check
for leaks.
Inspect exhaust system .
Inspect fuel lines and connections .
Check all lights.
Inspect the underbody.
Inspect and adjust drive belts.
Replace transmission fluid.
Replace transfer assembly fluid.
Replace dust and pollen filter .
Do items in A.
Do items in A, B.
Do items in A.
DoitemsinA,B,C.
Do items in A.
Do items in A, B.
Do items in A.
DoitemsinA,B,C,D.
Do items in A.
Do items in A, B.
Do items in A.
Replace brake fluid (independent of mileage).
DoitemsinA,B,C.
Do items in A.
Do items in A, B.
Do items in A.
DoitemsinA,B,C,D.
Do items in A.
Do items in A, B.
Do items in A.
300
3
2
Maintenance Schedule for Severe Conditions (listed by distance/time)

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Maint enance302
See information on maintenance and emissions warranty, last
column, page .
See timing belt on page to determine need for replacement.
See dust and pollen filter on page for replacement
information under special driving conditions.
Follow this schedule for rear differential fluid replacement if you
use your vehicle for off-highway driving, trailer towing, or
mainly in stop-and go driving. Otherwise, use the fluid
replacement schedule in the Maintenance Schedule for Normal
Conditions.
Check engine oil and coolant at each fuel stop.
Check and adjust valve clearance, cold engine, only if noisy.
NOTE: 297
332 331
:
1:
2:
3:75,000 mi/120,000 km/5 yrs
78,750 mi/126,000 km
82,500 mi/132,000 km
86,250 mi/138,000 km
6yrs
90,000 mi/144,000 km/6 yrs
93,750 mi/150,000 km
97,500 mi/156,000 km
101,250 mi/162,000 km
105,000 mi/168,000 km/7 yrs
108,750 mi/174,000 km
112,500 mi/180,000 km
116,250 mi/186,000 km
120,000 mi/192,000 km/8 yrs
9yrs
120,000 mi/ 192,000 km/10 yrs
then every 60,000 mi/
96,000 km/5 yrs DoitemsinA,B,C.
Do items in A.
Do items in A, B.
Do items in A.
Replace brake fluid (independent of mileage).
DoitemsinA,B,C,D.
Do items in A.
Do items in A, B.
Do items in A. Replace timing belt , and inspect water
pump. Inspect valve clearance. Replace spark plugs.
DoitemsinA,B,C.
Do items in A.
Do items in A, B.
Do items in A.
DoitemsinA,B,C,D. Replace brake fluid (independent of mileage).
Replace engine coolant. 

1,
Maintenance Schedule for Severe Conditions (listed by distance/time)