cooling Acura MDX 2002 User Guide

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CONT INUED
Maint enance255
A, B, C, D, E
Canadian Owners U.S. Owners
B
C A
D
E
Service at the indicated distance or time, whichever comes first. Do the items in as required for each distance/time.
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 Do items in A.
DoitemsinA,B,E .
Do items in A.
DoitemsinA,B,C,E.
Do items in A.
Do items in A, B.
Do items in A.
DoitemsinA,B,C,D,E.
Do items in A.
Do items in A, B.
Do items in A.
Replace brake fluid (independent of mileage)
DoitemsinA,B,C,E.
Do items in A.
Do items in A, B.
Do items in A.
DoitemsinA,B,C,D,E.
Do items in A.
Do items in A, B.
Do items in A.
Refer to page to determine which schedule to use.
Replace engine oil and filter.
Inspect front and rear brakes.
Rotate tires (follow pattern on page289).
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 couditions. Otherwise, use
Normal Conditions schedule.
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 cooling system hoses and connections.
Inspect exhaust system .
Inspect fuel lines and connections .
Check all lights.
Inspect the underbody.
Inspect and adjust drive belts.
Replace transmission fluid.
Replace dust and pollen filter .
Replace rear differential fluid .
254
4
2
3
Maintenance Schedule for Severe Conditions (listed by distance/time)
01/09/07 12:36:15 31S3V610_260

If the coolant level in the reserve
tank is at or below the MIN line, add
coolant to bring it up to the MAX line.
Inspect the cooling system f or leaks.
The coolant you add should always
be a mixture of 50 percent antif reeze
and 50 percent water. Never add
straight antif reeze or plain water.If the reserve tank is completely
empty, you should also check the
coolant level in the radiator.
Always use Honda All Season
Antif reeze/Coolant Type 2. This
coolant is pre-mixed with 50 percent
antif reeze and 50 percent water. It
does not require any additional
mixing.
If it is not available, you may use
another major-brand non-silicate
coolant as a temporary replacement.
Make sure it is a high-quality coolant
recommended f or aluminum engines.
However, continued use of any non-
Honda coolant can result in
corrosion, causing the cooling
system to malf unction or f ail. Have
the cooling system f lushed and
ref illed with Honda antif reeze/
coolant as soon as possible.
CONT INUED
A dding Engine Coolant
Cooling Syst em
Maint enance265
R RE
ES
SE ER
RV V E
E T
TA
A N
NK K
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.
01/09/07 12:37:40 31S3V610_270

Make sure the engine and radiator
are cool.
Turn the radiator cap counter-
clockwise, without pressing down
on it, until it stops. This relieves
any pressure remaining in the
cooling system.
Remove the radiator cap by
pushing down and turning
counterclockwise.The coolant level should be up to
the base of the f iller neck. Add
coolant if it is low.
Put the radiator cap back on.
Tighten it f ully.
Pour coolant into the reserve tank.
Fill it to half way between the MAX
and MIN marks. Put the cap back
on the reserve tank.Do not add any rust inhibitors or
other additives to your vehicle’s
cooling system. They may not be
compatible with the coolant or
engine components.
3. 4.
5.
6.
1.
2.
Cooling Syst em
Maint enance266
R RE
ES
SE ER
RV V E
E T
TA
A N
NK K
01/09/07 12:37:51 31S3V610_271

CONT INUED
Turn the ignition ON (II). Set the
Climate control system to 90°F(32
°C). Turn the ignition off.
Openthehood.Makesurethe
engine and radiator are cool to the
touch.
Remove the radiator cap.Loosen the drain plug on the
bottom of the radiator. The
coolant will drain through the
splash guard.
Thecoolingsystemshouldbe
completely drained and ref illed with
new coolant according to the time
and distance recommendations in
the maintenance schedule. Only use
Honda All Season Antif reeze/
Coolant Type 2. Use of any non-
Honda coolant or plain water can
result in corrosion and deposits in
the cooling system.
Draining the coolant requires access
to the underside of the vehicle.
Unless you have the tools and
knowledge, you should have this
maintenance done by a skilled
mechanic.
1.
3.
2.
Replacing Engine Coolant
Cooling Syst em
Maint enance267
D D
R
RAA I
INN P
PL
LUUG G
01/09/07 12:38:01 31S3V610_272

When the coolant stops draining,
tightenthedrainplugatthe
bottom of the radiator.
Tighten the drain bolt at the rear
of the engine cylinder block
securely.
Tightening torque:
Remove the reserve tank f rom its
holder by pulling it straight up.
Drain the coolant, then put the
tank back in its holder.
Install a rubber hose on the drain
bolt in the back of the engine
block. Loosen the drain bolt. 6.
4. 5. 7.
Cooling Syst em
Maint enance268
R RE
ES
SE ER
RV V E
E T
TA
A N
NK K
H
H O
OL LDD E
ER
R R
RE
ES
SE ER
RV V E
E
T
T A
A N
NK K C
CAA P
P
D
D
R
RAA I
INN B
BOOL LTT
7 lbf·ft (10 N·m , 1.0 kgf·m)
01/09/07 12:38:11 31S3V610_273

Fill the reserve tank to the MAX
mark. Install the reserve tank cap.
Install the radiator cap, and
tighten it to the first stop.
Start the engine and let it run until
the radiator cooling f an comes on
at least twice. Then stop the
engine.
Remove the radiator cap. Fill the
radiator with coolant up to the
base of the f iller neck.
Install the radiator cap, and
tighten it fully.
Pour Honda All Season
Antif reeze/Coolant Type 2 into
the radiator up to the base of the
f iller neck. This coolant is a
mixture of 50 percent antif reeze
and 50 percent water. Pre-mixing
is not required.
The cooling system capacity is: 10.
11.
12.
13. 9.
8.
Cooling Syst em
Maint enance269
F FI ILLL LEE R
R N
NEEC
CK K
F
Fi illll u
u p
p t
too h
he
erree
2.01 US gal (7.6, 1.67 Imp gal)
01/09/07 12:38:21 31S3V610_274

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. 342
A ir Condit ioning Syst em
Maint enance284
A A
I
IRR C
COON NDDI
ITT I
IOON NIINNG G
C
CO ON NDDE
EN
NS SEER
R
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.
01/09/07 12:40:32 31S3V610_289

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Check the condition of the two drive
belts (power steering belt and
alternator belt). Examine the edges
of each belt f or cracks or f raying. If you see signs of wear or looseness,
have your dealer adjust or replace
the belts. Power steering belt: Thebeltshouldhavethefollowing
‘‘play’’ or def lection.
Check the tension of the power
steering belt by pushing on it with
your thumb midway between the
pulleys.
This f ilter should be replaced every
30,000 miles (48,000 km) under nor-
mal conditions. It should be replaced
every 15,000 miles (24,000 km) if you
drive primarily in urban areas that
have high concentrations of soot in
the air f rom industry and diesel-pow-
ered vehicles. Replace it more of ten
if air f low f rom the climate control
system becomes less than usual.
Have dust and pollen f ilter replaced
by your Acura dealer. The dust and pollen f ilter removes
pollen and dust that is brought in
f rom the outside through the heating
and cooling system/climate control
system.
Drive Belts
Dust and Pollen Filter
Maint enance
Dust and Pollen Filter, Drive Belts
285
A A L
LTT E
ER
RN NA AT
TO
OR R B
BEEL
LTT
P
P
O
OW WE ER
R S
STTE
EE
ER
RI INNG G B
BEEL
LTT
0.51 0.65 in (13.0 16.5 mm)
01/09/07 12:40:44 31S3V610_290

If you see steam and/or spray
coming f rom under the hood, turn
of f the engine.
If you do not see steam or spray,
leave the engine running and
watch the temperature gauge. If
the high heat is due to overloading
(climbing a long, steep hill on a
hot day with the A/C running, for
example), the engine should start
to cool down almost immediately.
If it does, wait until the tempera-
ture gauge comes down to the mid-
point then continue driving. Saf ely pull to the side of the road.
Put the transmission in Neutral or
Park and set the parking brake.
Turn of f the heating and cooling/
climate control system and all
otheraccessories.Turnonthe
hazard warning indicators.
Keep the ends of the jumper cables
away from each other and any metal
on the vehicle until all are
disconnected. Otherwise, you may
cause an electrical short.
The pointer of your vehicle’s
temperature gauge should stay in
the midrange under most conditions.
Itmaygohigherif youaredrivingup
a long steep hill on a very hot day. If
it climbs to the red mark, you should
determine the reason. Your vehicle can overheat for several
reasons, such as lack of coolant or a
mechanical problem. The only
indication may be the temperature
gauge climbing to or above the red
mark. Or you may see steam or
spray coming f rom under the hood.
In either case, you should take
immediate action.
1.
2. 3.
CONT INUED
T aking Care of t he Unexpect ed
Jump Starting, If Your Engine Overheats
If Your Engine Overheats
325
Steam and spray from an
overheated engine can
seriously scald you.
Do not open the hood if steam
is coming out.
Driving with the temperature gauge
pointer at the red mark can cause
serious damage to your engine.
01/09/07 12:47:08 31S3V610_330

If the temperature gauge stays at
the red mark, turn of f the engine.
Wait until you see no more signs
of steam or spray, then open the
hood.
If you don’t f ind an obvious leak,
check the coolant level in the
radiator reserve tank (see page). If the level is below the
MIN mark, add coolant to halfway
between the MIN and MAX marks.
If there was no coolant in the
reserve tank, you may also have to
add coolant to the radiator. Let the
engine cool down until the pointer reaches the middle of the tempera-
ture gauge, or lower, bef ore check-
ing the radiator.
Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. This
releases any remaining pressure in
the cooling system. After the
pressure releases, push down on
the cap and turn it until it comes
off.
Look f or any obvious coolant leaks,
such as a split radiator hose.
Everything is still extremely hot,
so use caution. If you f ind a leak, it
must be repaired bef ore you
continue driving (see
on page ). Start the engine and set the
temperature control dial to
maximum (climate control to
FULL AUTO at 90°F/32°C). Add
coolant to the radiator up to the
base of the f iller neck. If you do
not have the proper coolant
mixture available, you can add
plain water. Remember to have
the cooling system drained and
ref illed with the proper mixture as
soon as you can.
If the temperature stays normal,
check the coolant level in the
radiator reserve tank. If it has
gone down, add coolant to the
MAX mark. Put the cap back on
tightly. Put the radiator cap back on
tightly. Run the engine and watch
the temperature gauge. If it goes
back to the red mark, the engine
needs repair. (See
on page .)
4.
5.
6.
7.
8. 9.10.
11.
12.
199 338
338
T aking Care of t he Unexpect ed
If Your Engine Overheats
Emergency
Towing
Emergency
Towing
326
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.
01/09/07 12:47:18 31S3V610_331