2004 Acura RL air conditioning

CONT INUED
You can manually select various
f unctions of the Climate Control
system when it is in FULL AUTO.
All other f eatures remain auto-
matically controlled. Making any
manual selection causes the word
FULL to go out.
When you turn the A/C of f , the sys-
tem cannot regulate the inside tem-
perature if you set the dial below the
outside temperature. With the A/C
on, use the temperature control dial
to adjust the temperature of the air
flow to a comfortable setting.With the A/C in economy mode, you
will see A/C ECON in the system’s
display. Use this mode to get better
f uel economy.
Press the A/C button to operate the
air conditioning. Each time you press
the A/C button, the display shows
the mode: A/C ECON, A/C OFF, or
A/C ON.
In this mode, you may f eel a slight re-
duction in cooling ef f iciency. If you
want more cooling, select A/C ON or
FULL AUTO.
Climat e Cont rol Syst em
Comf ort and Convenience Feat ures
Semi-automatic Operation
A ir Condit ioning (A /C) But t on
123
RECIRCULATED AIR FRESH AIRAIR CONDITIONING
BUTTON
TEMPERATURE
CONTROL DIAL

You can manually select various
f unctions of the Climate Control
system when it is in FULL AUTO.
All other f eatures remain auto-
matically controlled. Some of these
f unctions appear in the Navigation
System display. With the Navigation
System, press the A/C-INFO button
next to the display to show these
functions.
UsetheA/Ciconsinthedisplayto
select the air conditioning mode. You
will see A/C ON, A/C OFF, or A/C
ECON activated in the display. Semi-automatic Operation
Climat e Cont rol Syst em
Comf ort and Convenience Feat ures
A ir Condit ioning (A /C) On/Of f /EconIcons
128
RECIRCULATION BUTTON
TEMPERATURE BUTTON
A/C-INFO
BUTTON
MODE ICONS
FAN SPEED ICONS
A/C ON/OFF/ECON ICONS

A cold engine uses more f uel than a
warm engine. It is not necessary to
‘‘warm-up’’ a cold engine by letting it
idle f or a long time. You can drive
away in about a minute, no matter
how cold it is outside. The engine
will warm up f aster, and you get
better f uel economy. To cut down on
the number of ‘‘cold starts,’’ try to
combine several short trips into one.
You can improve f uel economy by
driving moderately. Rapid acceler-
ation, abrupt cornering, and hard
braking use more f uel.
Always drive in the highest gear that
allows the engine to run and acceler-
ate smoothly.
An important part of that mainte-
nance is the (see page ). For
example, an underinf lated tire
causes more ‘‘rolling resistance,’’
which uses f uel. It also wears out
f aster, so check the tire pressure at
least monthly. The condition of your car and your
driving habits are the two most
important things that affect the fuel
mileage you get.
Always maintain your car according
to the maintenance schedule. This
will keep it in top operating condition.
In winter, the build-up of snow on
your car’s underside adds weight and
rolling resistance. Frequent cleaning
helps your f uel mileage and reduces
thechanceof corrosion. Depending on traf f ic conditions, try
to maintain a constant speed. Every
time you slow down and speed up,
your car uses extra f uel. Use the
cruise control, when appropriate, to
increase f uel economy.
The air conditioning puts an extra
load on the engine which makes it
use more f uel. For better f uel
economy, either turn of f the A/C or
switch the A/C to the economy
mode. Use the flow-through
ventilation when the outside air
temperature is moderate.
251 Driving Habits
Owner Maintenance
Checks Vehicle Condition
Fuel Economy
Bef ore Driving209

µµBeing able to see
clearly in all directions and being
visible to other drivers are important
in all weather conditions. This is
more dif f icult in bad weather. To be
seen more clearly during daylight
hours, turn on your headlights. Check your tires
f requently f or wear and proper
pressure. Both are important in
preventing ‘‘hydroplaning’’ (loss of
traction on a wet surface). In the
winter, mount snow tires on all f our
wheels f or the best handling.
Watch road conditions caref ully,
they can change f rom moment to
moment. Wet leaves can be as slip-
pery as ice. ‘‘Clear’’ roads can have
patches of ice. Driving conditions
can be very hazardous when the
outside temperature is near f reezing.
The road surf ace can become
covered with areas of water puddles
mixed with areas of ice, so your
traction can change without warning.
Be caref ul when downshif ting. If
traction is low, you can lock up the
drive wheels f or a moment and cause
askid.
Inspect your windshield wipers and
washers f requently. Keep the wind-
shield washer reservoir f ull of the
proper f luid. Have the windshield
wiper blades replaced if they start to
streak the windshield or leave parts
unwiped. Use the def roster and air
conditioning to keep the windows
f rom f ogging up on the inside (see
pages and ).
Be very cautious when passing, or
beingpassedbyothervehicles.The
spray f rom large vehicles reduces
your visibility, and the wind buf f eting
can cause you to lose control.
126 131
Visibility
Traction
Driving in Bad Weather
Driving231

CONT INUED
When driving down hills, reduce
your speed and shif t down to 2nd
gear. Do not ‘‘ride’’ the brakes, and
remember it will take longer to slow
downandstopwhentowingatrailer.
When climbing hills, closely watch
your temperature gauge. If it nears
the red (Hot) mark, turn the air
conditioning of f , reduce speed and, if
necessary, pull to the side of the
road to let the engine cool.
If the automatic transmission shif ts
f requently between 3rd and 4th
gears while going up a hill, shif t to
D.
The added weight, length, and
height of a trailer will af f ect your car’s
handling and perf ormance, so
driving with a trailer requires some
special driving skills and techniques.
Foryoursafetyandthesafetyof
others,taketimetopracticedriving
maneuvers bef ore heading f or the
open road, and f ollow the guidelines
discussed below.
Drive slower than normal in all
driving situations, and obey posted
speed limits f or vehicles with trailers.
Use the D position when towing a
trailer on level roads. D is the
proper shif t lever position to use
when towing a trailer in hilly terrain.
(See ‘‘
’’ in the next
column f or additional gear
inf ormation.) Make turns more slowly and wider
than normal. The trailer tracks a
smaller arc than your car, and it can
hit or run over something the vehicle
misses. Allow more time and
distance f or braking. Do not brake or
turn suddenly as this could cause the
trailer to jackknif e or turn over.
If youmuststopwhenfacinguphill,
use the f oot brake or parking brake.
Do not try to hold the vehicle in
placebypressingontheaccelerator,
as this can cause the automatic
transmission to overheat.
3
4
3
Driving
Towing a Trailer
Driving Saf ely With a T railerMaking T urns and Braking
Driving on Hills
T owing Speeds and Gears
Driving on Hills
237

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. 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 . This section explains why it is
important to keep your car well
maintained and how to f ollow basic
maintenance saf ety precautions.......................
Maintenance Saf ety .240
.
Important Safety Precautions . 241
.................
Maintenance Schedule . 242
...
Required Maintenance Record . 249
.......
Owner Maintenance Checks . 251
..............................
Fluid Locations .252
......................................
Engine Oil .253
..................................
Adding Oil .253
....................
Recommended Oil .253
..............................
Synthetic Oil .254
....................................
Additives .254
.....
Changing the Oil and Filter . 255
.............................
Cooling System .257
............
Adding Engine Coolant . 257
.......
Replacing Engine Coolant . 259
....................
Windshield Washers .263
....
Automatic Transmission Fluid . 264
..............................
Dif f erential Oil .265
....................................
Brake Fluid .266
............................
Brake System .266
..............................
Power Steering .266
....................................
Hood Latch .267
.....................
Air Cleaner Element .267
....................................
Spark Plugs .269
..............................
Replacement .269
............................
Specif ications .272 ...........................................
Battery .272
.................................
Wiper Blades .275
..............
Air Conditioning System . 277
..................
Dust and Pollen Filter . 278
.....................................
Drive Belts .278
....................................
Timing Belt .279
...............................................
Tires .279
......................................
Inf lation .279
..................................
Inspection .281
..............................
Maintenance .282
.............................
Tire Rotation .282
...
Replacing Tires and Wheels . 283
......................
Wheels and Tires .284
..........................
Winter Driving .284
.............................
Snow Tires .285
............................
Tire Chains .285
.............................................
Lights .286
........................
Replacing Bulbs .288
...........................
Storing Your Car .297
355
Maintenance
Maint enance239

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.

µµÎ
Î
Î
Î
T echnical Inf ormation
Specif ications
338
Dimensions
Weights
Air Conditioning Capacities
Excluding the oil remaining in the engine. Including the coolant in the reserve tank and that remaining in the
engine.
Reserve tank capacity: 4.5 US qt (4.3
)
196.7 in (4,995 mm)
71.7 in (1,820 mm)
54.5 in (1,385 mm)
114.6 in (2,910 mm)
61.0 in (1,550 mm)
60.6 in (1,540 mm)
HFC-134a (R-134a)
24.7 26.5 oz (700 750 g) ND-OIL8 18.0 US gal (68
)
1.61 US gal (6.1)
2.27 US gal (8.6)
4.9 US qt (4.6
)
5.6 US qt (5.3
)
3.2 US qt (3.0)
9.1 US qt (8.6)
1.11 US qt (1.05
)
1.16 US qt (1.10)
2.6 US qt (2.5)
6.9 US qt (6.5)
0.172 US gal (0.65
)
Length
Width
Height
Wheelbase
Track
Gross vehicle weight rating See the certification label attached
to the driver’s doorjamb.
Refrigerant type
Charge quantity
Lubricant type Fuel tank
Engine
coolant
Engine oil
Automatic
transmission
fluid
Differential
oil
Windshield
washer
reservoir
1:
2: Approx.
Front
Rear Change
Total
Change
Including filter
Without filter
Total
Change
Total
Change
Total
U.S. Cars
Canada Cars
1
2