2004 Acura RL 3.5 Owner's Manual

Install the radiator cap, and
tighten it fully.
If necessary, f ill the reserve tank
to the MAX mark. Install the
reserve tank cap.
18.
19.
Cooling Syst em
Maint enance262
RESERVE TANK

Fill the reservoir with a good-quality
windshield washer f luid. This
increases the cleaning capability and
prevents f reezing in cold weather.
Check the level in the windshield
washer reservoir at least monthly
during normal usage. In bad weather,
when you use the washers of ten,
check the level every time you stop
for fuel.
The windshield washer reservoir is
located behind the driver’s side
headlight.
Check the reservoir’s f luid level by
removing the cap and looking at the
f loat. It should be up to the top of the
neck.Ifthefloatisatthebottomof
the neck, the reservoir is nearly
empty. When you ref ill the reservoir, clean
the edges of the windshield wiper
blades with windshield washer f luid
on a clean cloth. This will help to
condition the blade edges.
Windshield Washers
Maint enance263
FLOAT
Do not use engine antif reeze or a
vinegar/water solution in the
windshield washer reservoir.
Antif reeze can damage your car’s paint,
while a vinegar/water solution can
damage the windshield washer pump.
Use only commercially-available
windshield washer f luid.

Check the f luid level with the engine
at normal operating temperature.Remove the dipstick (yellow loop)
f rom the transmission, and wipe it
with a clean cloth. Insert the dipstick into the
transmission. Make sure the notch
in the rubber cap f its in the
dipstick guide and that you push
the dipstick in all the way.
Remove the dipstick and check
the f luid level. It should be
between the upper and lower
marks.If the level is below the lower
mark, add f luid into the tube to
bring it to the upper mark. Always
use Honda ATF-Z1 (Automatic
Transmission Fluid). If it is not
available, you may use a
DEXRON
III automatic
transmission f luid as a temporary
replacement. However, continued
use can affect shift quality. Have
the transmission f lushed and
ref illed with Honda ATF-Z1 as
soon as it is convenient.
To thoroughly f lush the
transmission, the technician
should drain and ref ill it with
Honda ATF-Z1 (Automatic
Transmission Fluid), then drive
the vehicle a short distance. Do
this three times. Then drain and
ref ill the transmission a f inal time.
Park the vehicle on level ground.
Shut of f the engine.
1.
2. 3.
4.5.
Automatic Transmission Fluid
Maint enance264
DIPSTICK
DIPSTICK GUIDE UPPER MARK
LOWER MARK

µµ
UseaSAE90orSAE80W-90
viscosity hypoid gear oil, API service
classif ied GL4 or GL5 only, in the
dif f erential.
The dif f erential oil should be drained
and ref illed with new oil according to
the time and distance recommenda-
tions in the maintenance schedule. Viscosity
If it is not, slowly add oil until it
starts to run out of the hole. Reinstall
the f iller plug and tighten it securely.
Insert the dipstick back in the
transmission. Make sure the notch
f its in the dipstick guide and the
dipstick is down all the way.
The transmission should be drained
and ref illed with new f luid according
to the time and distance recommen-
dations in the maintenance schedule.
Check the oil in the dif f erential with
the vehicle sitting level. Remove the
oil f iller plug and check that the oil
levelisuptotheedgeof thehole.
6.
Maint enance
Dif f erential Oil
Automatic Transmission Fluid, Dif f erential Oil
265
DRAIN PLUGFILLER PLUG
Correct
level
SAE 90: above 0°F ( 18°C)
SAE 80W-90: below 0°F ( 18°C)

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 car’s braking
system and can cause extensive
damage.
You should check the f luid level in
the power steering reservoir at least
once a year. Check the level when
the engine is cold. Look at the side
of the reservoir. The f luid should be
between the UPPER LEVEL and
LOWER LEVEL. If it is below the
LOWER LEVEL, add power steering
f luid to the UPPER LEVEL.
Brake System
Power Steering
Brake Fluid
Maint enance
Brake Fluid, Power Steering
266
MAX MIN UPPER
LEVEL
LOWER
LEVEL

The air cleaner element should be
cleaned or replaced according to the
time and distance recommendations
in the maintenance schedule.
Clean the air cleaner element by
blowing compressed air through it in
the opposite direction to normal air
f low. If you do not have access to
compressed air (such as a service
station), ask your Acura dealer to do
this service.
Follow the replacement procedure
for removal and reinstallation.
Always use Honda Power Steering
Fluid. If it is not available, you may
use another power steering f luid as
an emergency replacement.
However, continued use can cause
increased wear and poor steering in
cold weather. Have the power
steering system f lushed and ref illed
with Honda PSF as soon as possible.
A low power steering f luid level can
indicate a leak in the system. Check
the f luid level f requently, and have
the system inspected as soon as
possible.
Clean the hood latch assembly with a
mild cleaner, then lubricate it with a
multipurpose grease. Lubricate all
the moving parts (as shown),
including the pivot. Follow the time
and distance recommendations in
the Maintenance Schedule. If you
are not sure how to clean and grease
the latch, contact your Acura dealer.
CONT INUED
A ir Cleaner Element
Hood L atch
Maint enance
Power Steering, Hood L atch, A ir Cleaner Element
Cleaning (Severe Condit ions)
267
PIVOTS
LATCH
ASSEMBLY
T urning the steering wheel to f ull lef t
or right lock and holding it there can
damage the power steering pump.

Place the new air cleaner element
in the air cleaner housing.
Reinstall the air cleaner housing
cover, snap the four hold-down
clamps back into place.
Remove the old air cleaner
element. Remove the air cleaner housing
cover. Do not disconnect the air
intake tube from the air cleaner
housing cover.
Unsnap the f our clamps holding
the air cleaner housing cover.
To replace it: The air cleaner element is inside the
air cleaner housing on the passenger’s
side of the engine compartment.
Caref ully clean the inside of the
air cleaner housing with a damp
rag.
1. 2.
3.
4.5.
6.
A ir Cleaner Element
Maint enance
Replacement
268
CLAMPS
AIR CLEANER
ELEMENT

Clean off any dirt and oil that have
collected around the ignition coils. Remove the two bolts and the f our
nuts with a wrench and remove
the tower bar. Then remove the
A/C tube f rom the three clips.
Remove the two bolts and the
three nuts with a 7/16 inch (10
mm) wrench, then remove the
engine cover.
The spark plugs in your car are a
special platinum-tipped design f or
longer lif e. The spark plugs should
be replaced according to the time
and distance recommendations in
the maintenance schedule.
1.2.
3.
CONT INUED
Replacement
Spark Plugs
Maint enance269
NUTS
BOLTS NUTS
BOLTS
NUTS