service Acura MDX 2003 Owner's Manua

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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)

Open the hood and remove the
engine oil f ill cap. Remove the oil
drain bolt and washer f rom the
bottom of the engine. Drain the oil
into an appropriate container.
Always change the oil and f ilter
accordingtothetimeanddistance
(miles/kilometers) recommenda-
tions in the maintenance schedule.
The oil and f ilter collect contami-
nants that can damage your engine if
they are not removed regularly.
Changing the oil and f ilter requires
special tools and access f rom
underneath the vehicle. The vehicle
should be raised on a service station-
type hydraulic lif t f or this service.
Unless you have the knowledge and
proper equipment, you should have
this maintenance done by a skilled
mechanic.
Run the engine until it reaches
normal operating temperature,
then shut it off.
1.
2.
CONT INUED
Engine Oil
Maint enance
Changing the Oil and Filter
309
WASHERDRAIN BOLT

µµ The f luid level should be between
theMINandMAXmarksontheside
of the reservoir. If the level is at or
below the MIN mark, your brake
system needs attention. Have the
brake system inspected f or leaks or
worn brake pads.
Check the f luid level in the brake
f luid reservoir monthly.
The brake f luid should be replaced
according to the time recommenda-
tion in the maintenance schedule.
Always use Honda Heavy Duty
Brake Fluid DOT 3. If it is not
available, you should use only DOT 3
or DOT 4 f luid, f rom a sealed
container, as a temporary
replacement. However, the use of
any non-Honda brake fluid can cause
corrosion and decrease the lif e of the
system. Have the brake system
f lushed and ref illed with Honda
Heavy Duty Brake Fluid DOT 3 as
soon as possible.
Brake f luid marked DOT 5 is not
compatible with your vehicle’s
braking system and can cause
extensive damage.
If it is not, slowly add proper f luid
until it starts to run out of the hole.
Reinstall the f iller plug and tighten it
securely.
The transf er assembly f luid should
be drained and ref illed with new f luid
accordingtothetimeanddistance
recommendations in the
maintenance schedule. Viscosity UseaSAE90orSAE80W-90
viscosity hypoid gear oil, API service
classif ied GL4 or GL5 only, in the
transf er assembly. Tightening torque:
Brake System
Brake Fluid
Maint enance
T ransf er A ssembly Fluid, Brake Fluid
319
MAX
MIN
SAE 90: above 0°F ( 18°C)
SAE 80W-90: below 0°F ( 18°C)
33 lbf·ft (45 N·m , 4.6 kgf·m)

Run the air conditioning at least once
a week during the cold weather
months. Run it f or at least ten
minutes while you are driving at a
steady speed with the engine at
normal operating temperature. This
circulates the lubricating oil con-
tained in the ref rigerant.If the air conditioning does not get as
cold as before, have your dealer
check the system. Recharge the
system with Ref rigerant HFC-134a
(R-134a). (See Specif ications on page
.)
Your vehicle’s air conditioning is a
sealed system. Any major mainte-
nance, such as recharging, should be
done by a qualif ied mechanic. You
can do a couple of things to make
sure the air conditioning works
ef f iciently.
Periodically check the engine’s
radiator and air conditioning
condenser f or leaves, insects, and
dirt stuck to the f ront surf ace. These
block the air f low and reduce cooling
ef f iciency. Use a light spray f rom a
hose or a sof t brush to remove them. 390
A ir Condit ioning Syst em
Maint enance330
AIR CONDITIONING
CONDENSER
Whenever you have the air conditioning
system serviced, make sure the service
f acility uses a ref rigerant recycling
system. This system captures the
ref rigerant f or reuse. Releasing
ref rigerant into the atmosphere can
damage the environment.
The condenser and radiator f ins bend
easily. Only use a low-pressure spray
or sof t-bristle brush to clean them.

Tighten the wheel nuts securely in
the same crisscross pattern. Have
the wheel nut torque checked at
the nearest automotive service
f acility.
Tighten the wheel nuts to:
Remove the center cap from the
flat tire.Place the f lat tire f ace up under
the hoist.
Slowly turn the wheel wrench
clockwisetotakeuptheslackof
the hoist cable. Make sure the
bracketisseatedinthecenter
hole of the spare tire.
Turn the wheel wrench clockwise
until the f lat tire rests against the
underbody of the vehicle and you
hear the hoist click.
Insert the hoist bracket into the
center hole of the f lat tire.
18.
19. 20.
21.
22.
23.
Changing a Flat T ire
T aking Care of t he Unexpect ed366
80 lbf·ft (108 N·m , 11 kgf·m)

This indicator should come on when
the ignition switch is ON (II), and go
out af ter the engine starts. If it
comes on brightly when the engine
is running, it indicates that the
charging system has stopped
charging the battery.By eliminating as much of the
electrical load as possible, you can
drive several miles (kilometers)
before the battery is too discharged
to keep the engine running. Drive to
a service station or garage where
you can get technical assistance.
Immediately turn of f all electrical
accessories:radio,heater,A/C,
climate control, rear def ogger, cruise
control, etc. Try not to use other
electrically-operated controls such as
the power windows. Keep the engine
running and take extra care not to
stall it. Starting the engine will
discharge the battery rapidly.
T aking Care of t he Unexpect ed
Charging System Indicator
374
CHARGING SYSTEM INDICATOR

However, if the brake pedal does not
f eel normal, you should take
immediate action. Because of the
brake system’s dual-circuit design, a
problem in one part of the system
will still give you braking at two
wheels. You will f eel the brake pedal
go down much f arther bef ore the
vehicle begins to slow down, and you
will have to press harder on the
pedal. The distance needed to stop
will be much longer. If it comes on at any other time, it
indicates a problem with the vehicle’s
brake system. In most cases, the
problem is a low f luid level in the
brake f luid reservoir. Press lightly on
the brake pedal to see if it f eels
normal. If it does, check the brake
f luid level the next time you stop at a
service station (see page ). If the
f luid level is low, take the vehicle to
your dealer and have the brake
system inspected f or leaks or worn
brake pads.Slow down by shif ting to a lower
gear, and pull to the side of the road
when it is saf e. Because of the
longer distance needed to stop, it is
hazardous to drive the vehicle. You
should have it towed, and repaired as
soon as possible. (See
on page .)
If you must drive the vehicle a short
distance in this condition, drive
slowly and cautiously.
The Brake System Indicator comes
on when you turn the ignition ON
(II). If the parking brake is not set, it
goes of f af ter you start the engine. If
the parking brake is set, it goes of f
when you f ully release the parking
brake with the engine running. 319
385Emergency
Towing
Brake System Indicator
T aking Care of t he Unexpect ed377
U. S. indicator shown BRAKE SYSTEM INDICATOR

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If your vehicle needs to be towed,
call a prof essional towing service or,
if youbelongtoone,anorganization
that provides roadside assistance.
Never tow your vehicle behind
another vehicle with just a rope or
chain. It is very dangerous.
There are three popular types of
prof essional towing equipment.
The operator
loads your vehicle on the back of a
truck. Any other
method of towing will damage the
drive system. When you contact the
towing agency, inf orm them that a
f lat-bed is required. The tow
truck uses two pivoting arms that go
under the tires (f ront or rear) and lif t
them of f the ground. The other two
tires remain on the ground. Refer to
on page
for non-emergency towing
inf ormation.
The tow
truck uses metal cables with hooks
on the ends. These hooks go around
parts of the f rame or suspension and
cables lif t that end of the vehicle of f
the ground. Your vehicle’s
suspension and body can be
seriously damaged. 283Flat -bed Equipment
Wheel L if t Equipment
Sling-t ype Equipment
T his is the only way to
transport your vehicle. Never tow your vehicle with
wheel lif t equipment. Towing Your Vehicle
Behind a Motorhome
T his method of
towing your MDX is unacceptable.
Emergency T owing
T aking Care of t he Unexpect ed385
Towing a MDX with only two tires on
the ground will damage parts of the
4WD system. It should be transported
on a f lat-bed truck or trailer.

µ
The treadwear grade is a compara-
tive rating based on the wear rate of
the tire when tested under controlled
conditions on a specif ied government
test course. For example, a tire
graded 150 would wear one and one-
half (1 1/2) times as well on the
government course as a tire graded
100. The relative perf ormance of
tires depends upon the actual condi-
tions of their use, however, and may
depart signif icantly f rom the norm
due to variations in driving habits,
service practices and dif f erences in
road characteristics and climate. The traction grades, f rom highest to
lowest, are AA, A, B, and C. Those
grades represent the tire’s ability to
stop on wet pavement as measured
under controlled conditions on
specif ied government test surf aces
of asphalt and concrete. A tire
marked C may have poor traction
perf ormance.
The tires on your vehicle meet all
U.S. Federal Saf ety Requirements.
All tires are also graded f or
treadwear, traction, and temperature
perf ormance according to
Department of Transportation
(DOT) standards. The f ollowing
explains these gradings.
Quality grades can be f ound where
applicable on the tire sidewall
between the tread shoulder and the
maximum section width. For
example:
All passenger car tires must conf orm
to Federal Saf ety Requirements in
addition to these grades. Warning: The traction grade
assignedtothistireisbasedon
straight-ahead braking traction tests,
and does not include acceleration,
cornering, hydroplaning, or peak
traction characteristics.
T echnical Inf ormation
DOT T ire Quality Grading (U.S. Vehicles)
T readwear
Unif orm T ire Quality Grading Traction AA, A, B, C
T readwear 200
Traction AA
Temperature A
392

Some conventional gasolines are
being blended with alcohol or an
ether compound. These gasolines
are collectively ref erred to as
oxygenated f uels. To meet clean air
standards, some areas of the United
States and Canada use oxygenated
f uels to help reduce emissions.
If you use an oxygenated f uel, be
sure it is unleaded and meets the
minimum octane rating requirement.
Bef ore using an oxygenated f uel, try
to conf irm the f uel’s contents. Some
states/provinces require this
informationtobepostedonthe
pump.The f ollowing are the U.S. EPA and
Canadian CGSB approved
percentages of oxygenates:
(Methyl Tertiary Butyl
Ether)
You may use gasoline containing up
to 15 percent MTBE by volume. (ethyl or grain alcohol)
You may use gasoline containing up
to 10 percent ethanol by volume.
Gasoline containing ethanol may be
marketed under the name ‘‘Gasohol.’’
(methyl or wood
alcohol)
Your vehicle was not designed to use
fuel that contains methanol.
Methanol can corrode metal parts in
the fuel system, and also damage
plastic and rubber components. This
damage would not be covered by
your warranties. If you notice any undesirable
operating symptoms, try another
service station or switch to another
brand of gasoline.
Fuel system damage or perf ormance
problems resulting f rom the use of
an oxygenated f uel containing more
than the percentages of oxygenates
given above are not covered under
warranty.
MT BE ET HA NOL
MET HA NOL
Oxygenated Fuels
T echnical Inf ormation395