2004 Acura RL maintenance

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
.)
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. Your car’s air conditioning is a sealed
system. Any major maintenance,
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. 338
A ir Condit ioning Syst em
Maint enance277
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.

µµWe recommend that you visually
check your tires every day. If you
think a tire might be low, check it
immediately with a tire gauge.
The timing belt and balancer belt
should normally be replaced at the
intervals shown in the maintenance
schedule.
In very high temperatures
(over 110°F, 43°C).
In very low temperatures
(under 20°F, 29°C). To saf ely operate your car, your tires
must be the proper type and size, in
good condition with adequate tread,
and correctly inf lated. The f ollowing
pages give more detailed inf ormation
on how and when to check air
pressure, how to inspect your tires
for damage and wear, and what to do
when your tires need to be replaced.
Replace these belts at 60,000 miles
(U.S.) or 100,000 km (Canada) if you
regularly drive your car in one or
more of these conditions: Keeping the tires properly inf lated
provides the best combination of
handling, tread lif e, and riding
comf ort. Underinf lated tires wear
unevenly, adversely affect handling
and f uel economy, and are more
likely to f ail f rom being overheated.
Overinf lated tires can make your car
ride more harshly, are more prone to
damage f rom road hazards, and wear
unevenly.
CONT INUED
Inf lation
Tires
Timing Belt
Timing Belt, Tires
Maint enance279
Using tires that are excessively
worn or improperly inflated can
cause a crash in which you can
be seriously hurt or killed.
Follow all instructions in this
owner’s manual regarding tire
inflation and maintenance.

In addition to proper inf lation,
correct wheel alignment helps to
decrease tire wear. If you f ind a tire
is worn unevenly, have your dealer
check the wheel alignment.
The tires were properly balanced by
the factory. They may need to be
rebalanced at some time bef ore they
are worn out. Have your dealer
check the tires if you f eel a consis-
tent vibration while driving. A tire
should always be rebalanced if it is
removed f rom the wheel f or repair.To help increase tire lif e and
distribute wear more evenly, you
should have the tires rotated every
7,500 miles (12,000 km). Move the
tires to the positions shown in the
chart each time they are rotated.
Make sure the installer balances the
wheels when you have new tires
installed. This increases riding
comf ort and tire lif e. Your car’s
original tires were dynamic or ‘‘spin’’
balanced at the f actory. For best
results, have the installer perf orm a
dynamic balance.
Maintenance
T ire Rotation
Tires
Maint enance282
FrontFront
(For Non-directional
Tires and Wheels) (For Directional
Tires and Wheels)
Improper wheel weights can damage
your car’s aluminum wheels. Use only
genuine Acura wheel weights f or
balancing.

Block the rear wheels.
Fill the f uel tank.
Change the engine oil and f ilter
(see page ).
Wash and dry the exterior
completely.
Cleantheinterior.Makesurethe
carpeting, floor mats, etc. are
completely dry.
Leave the parking brake off. Put
the transmission in Park.
If you need to park your car f or an
extended period (more than one
month), there are several things you
should do to prepare it f or storage.
Proper preparation helps prevent
deterioration and makes it easier to
get your car back on the road. If
possible, store your car indoors.
If possible, run the engine f or a
while periodically (pref erably once
amonth).
Leave one window open slightly (if
the vehicle is being stored
indoors).
If you store your car f or 1 year or
longer, have your Acura dealer
perf orm the inspections called f or in
the 2 years/30,000 miles (48,000 km)
maintenance schedule (Normal
Conditions) as soon as you take it
out of storage (see page ). The
replacements called f or in the
maintenance schedule are not
needed unless the vehicle has
actually reached that time or mileage.
To minimize sticking, apply a
silicone spray lubricant to all door
and trunk seals. Also, apply a
vehiclebodywaxtothepainted
surfaces that mate with the door
and trunk seals. Disconnect the battery.
Support the f ront wiper blade
arms with a f olded towel or rag so
they do not touch the windshield. If the vehicle is to be stored f or a
longer period, it should be
supported on jackstands so the
tires are of f the ground. Cover the vehicle with a
‘‘breathable’’ cover, one made
f rom a porous material such as
cotton. Nonporous materials, such
as plastic sheeting, trap moisture,
which can damage the paint.
255 244
Maint enance
St oring Your Car
297

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.
Two f actors normally contribute to
causing corrosion in your car:
Many corrosion-preventive measures
are built into your Acura. You can
help keep your car f rom corroding
by perf orming some simple periodic
maintenance: Use a high-pressure spray to clean
the underside of your car. This is
especially important in areas that
useroadsaltinwinter.Itisalsoa
good idea in humid climates and
areas subject to salt air. Be careful
of the ABS wheel sensors and
wiring at each wheel.
Have the corrosion-preventive
coatings on the underside of your
car inspected and repaired
periodically.
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.
1.
2.
Corrosion Prot ect ion
Appearance Care305

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T echnical Inf ormation
Specif ications
339
Engine
Alignment
Tires
Battery
Fuses Lights 12 V
12 V55 W (H1) (High beam)
27/8 W
3.54x3.58in(90x91mm)212 cu-in (3,474 cm
)
9.6 : 1
0.00 in (0.0 mm)
0.08 in (2.0 mm) 0°
0°30’
2°50’
P225/55R16 94V
T135/80D16 101M
30 psi (210 kPa , 2.1 kgf/cm
)
60 psi (420 kPa , 4.2 kgf/cm)
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
21 W
21/5 W
55 W (H1)
21 W
3CP
21 W
3CP
5W
5W
3.4 W
3.4 W
2W Type
BorexStroke
Displacement
Compression ratio
Spark plugs
Water cooled 4-stroke
SOHC V-6 gasoline engine
Toe
Camber
Caster
Size
Pressure
Capacity 12 V 55 AH/5 HR
Interior
Under-hood 65 AH/20 HR
12 V
See page 331or the fuse label
attached to the inside of the fuse
box door under the dashboard.
See page 330or the fuse box
cover. See spark plug maintenance
section page
272.
Headlights
Front turn signal/parking lights
Rear turn signal lights
Brake/Taillights
Front fog lights
High-mount brake light
Front side marker lights
Back-up lights
License plate lights
Ceiling lights
Trunk light
Door courtesy lights
Vanity mirror light
Front
Rear
Front
Rear
Front
Front/Rear
Spare
Front/Rear
Sparein
Front
Rear
Low beam headlight bulbs are a type of high voltage discharge
tube (D2R).
1:
1

Î
ÎThe 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.
The burning of gasoline in your car’s
engine produces several byproducts.
Some of these are carbon monoxide
(CO), oxides of nitrogen (NOx) and
hydrocarbons (HC). Gasoline
evaporating from the tank also
produces hydrocarbons. Controlling
the production of NOx, CO, and HC
is important to the environment.
Under certain conditions of sunlight
and climate, NOx and HC react to
f orm photochemical ‘‘smog.’’ Carbon
monoxide does not contribute to
smog creation, but it is a poisonous
gas.
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.
Your car has a Positive Crankcase
Ventilation System. This keeps
gasses that build up in the engine’s
crankcase from going into the
atmosphere. The Positive Crankcase Ventilation valve routes them from
the crankcase back to the intake
manif old. They are then drawn into
the engine and burned.
244
The Clean Air Act
Onboard Ref ueling Vapor
Recovery Evaporative Emissions Control
System
Crankcase Emissions Control
System
Emissions Cont rols
T echnical Inf ormation345

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