1994 Lexus ES300 air condition

MAINTENANCE
146
MAINTENANCE REQUIREMENTS
Your Lexus vehicle has been designed to have fewer
maintenance requirements with longer service intervals to
save both your time and money. However, each regular
maintenance as well as day-to-day care is more important than
ever before to ensure smooth, trouble-free, safe, and
economical driving.
It is the owner’s responsibility to make sure the specified
maintenance, including general maintenance services, is
performed. Note that both the new vehicle and emission
control system warranties specify that proper maintenance
and care must be performed. See Owner’s Guide or Warranty
Booklet for complete warranty information.
General maintenance
General maintenance items are those day-to-day care
practices that are important to your vehicle for proper
operation. It is the owner’s responsibility to ensure that the
general maintenance items are performed regularly.
These checks or inspections can be done either by yourself or
your Lexus dealer.
Scheduled maintenance
The scheduled maintenance items listed in this part are those
required in servicing at regular intervals.However, under severe driving conditions, a separate
maintenance schedule that requires more frequent
maintenance service should be practiced.
It is recommended that any replacement part used for
maintenance or for the repair of the emission control
system be Lexus supplied.
The owner may elect to use non-Lexus supplied parts for
replacement purposes without invalidating the emission
control system warranty. However, use of replacement
parts which are not of equivalent quality may impair the
effectiveness of the emission control system.
You may also elect to have maintenance, replacement, or
repair of the emission control devices and system
performed by any automotive repair establishment or
individual without invalidating this warranty. See Owner’s
Guide or Warranty Booklet for complete warranty
information.
Where to go for service?
Lexus technicians are well-trained specialists and are kept up
to date with the latest service information through technical
bulletins, service tips, and in-dealership training programs.
They are well informed about the operation of all the systems
on your vehicle.

MAINTENANCE
148Tire rotation
Rotate the tires every 12000 km (7500 miles). See page 191
for additional information.
Windshield wiper blades
Check for wear or cracks whenever they do not wipe clean.
Fluid leaks
Check underneath for leaking fuel, oil, water or other fluid after
the vehicle has been parked for a while. If you smell fuel fumes
or notice any leak, have the cause found and corrected
immediately.
Doors and engine hood
Check that all doors, including trunk lid, operate smoothly and
all latches lock securely. Make sure the engine hood
secondary latch still secures the hood when the primary latch
is released.
Vehicle interior
Items listed below should be checked regularly, e.g. while
performing periodic services, cleaning the vehicle, etc.
Lights
Make sure the headlights, stop lights, tail lights, turn signal
lights, and other lights are all working. Check headlight aim.Service reminder indicators and warning buzzers
Check that all service reminder indicators and warning
buzzers function properly.
Horn
Make sure it works.
Windshield glass
Check that it is free from scratches, pits or abrasions.
Windshield wipers and washer
Check operation of the wipers and washer. Make sure the
wipers do not streak.
Windshield defroster
Check that air comes out the defroster outlet when operating
the heater or the air conditioning.
Rear view mirror
Make sure it is mounted securely.
Sun visors
Make sure they move freely and are mounted securely.
Steering wheel
Check that it has the specified freeplay. See page 188 for
additional information. Be alert for changes in steering
condition, such as hard steering, excessive freeplay or strange
noise.

MAINTENANCE
150Brake fluid level
Make sure the brake fluid levels is correct. See page 184 for
additional information.
Engine drive belts
Check the belts or fraying, cracks, wear or oiliness.
Engine oil level
Check the level on the dipstick with the engine turned off and
the vehicle parked on a level spot. See page 176 for additional
information.
Power steering fluid level
Check the level through the reservoir. The level should be in
the “HOT” or “COLD” range depending on the fluid
temperature. See page 187 for additional information.
Automatic transmission fluid level
Check the level on the dipstick with the engine idling and the
selector lever in “P”. The level should be in the “HOT” or
“COOL” range according to the fluid temperature. See page
188 for additional information.
Exhaust system
Look for cracks, holes and loose supports. If you notice any
change in the sound of the exhaust or smell exhaust fumes,
have the cause located and corrected immediately. (See
engine exhaust cautions in Section 3-1.)
DOES YOUR VEHICLE NEED
REPAIRING?
Be on the alert for changes in performance and sounds, and
visual tip-offs that indicate service is needed. Some important
clues are:

Engine missing, stumbling, or pinging

Appreciable loss of power

Strange engine noises

A fluid leak under the vehicle (However, water dripping from
the air conditioning alter use is normal.)

Change in exhaust sound (This may indicate a dangerous
carbon monoxide leak. Drive with the windows open and
have the exhaust system checked immediately.)

Flat-looking tires, excessive tire squeal when cornering;
uneven tire wear

Vehicle pulls to one side when driving straight on a level
road

Strange noises related to suspension movement

Loss of brake effectiveness, spongy feeling brake pedal,
pedal almost touches floor, vehicle pulls to one side when
braking

Engine coolant temperature continually higher than normal

MAINTENANCE
151 If you notice any of these clues, take your vehicle to your Lexus
dealer as soon as possible. It probably needs adjustment or
repair.
CAUTION:
Do not continue driving with the vehicle unchecked. It
could result in serious vehicle damage and possibly
personal injury.
SCHEDULED MAINTENANCE
Driving conditions under which you mainly operate your
vehicle determine which maintenance schedule you
follow.
In order to ensure smooth, trouble-free, safe and economical
driving, Lexus provides two maintenance schedules to be
selected according to your driving conditions: schedules A and
B. The instructions on which schedule to follow are given on
the next page.
The service interval for scheduled maintenance is
determined by the odometer reading or the time interval,
whichever comes first, shown in the schedule.The maintenance services beyond the last period should
be performed at the same intervals.
The service interval of each item can be obtained from the
maintenance schedule.

MAINTENANCE
153 SCHEDULE A
Maintenance operations:
A = Check and adjust as necessary; I = Inspect and correct or replace as necessary; R = Replace, change or lubricate.
Service interval
(Use odometer reading or
months, whichever comes first.)Maintenance services beyond 96,000 km (60,000 miles) should continue to be performed at the same intervals shown for each maintenance schedule.
Miles x 1,00013.757.511.251518.7522.526.253033.7537.541.254548.7552.556.2560MonthsMaintenance items km x 1,0001.66121824303642485460667278849096ENGINE COMPONENTS AND EMISSION CONTROL SYSTEMSTiming beltSee note (1)Valve clearanceAA: Every 72 monthsDrive belt See note (2)II: See note (2)Engine oil and oil filterRRRRRRRRRRRRRRRRR: Every 6 monthsEngine coolant See note (3)RR: See note (3)Exhaust pipes and mountingIIIII: Every 24 months
Air filterSee note (4)IIIIIIIRIIIIIIIRI: Every 6 months
R: Every 36 months
Fuel lines and connections See note (5)III: Every 36 monthsFuel tank cap gasketRR: Every 72 monthsSpark plugsRR: Every 72 monthsCharcoal canister See note (6)II: Every 72 months
Maintenance services indicated by a star () are required under the terms of the Emission Control Systems Warranty. See Owner’s Guide or Warranty Booklet for complete
warranty information.
 For vehicles sold in California and New York only
NOTE:
(1) If you operate your vehicle under conditions of extensive idling and / or low speed driving for long distances such as police, taxi or door to door delivery use, replace
every 96,000 km (60,000 miles).
(2) After 96,000 km (60,000 miles) or 72 months, inspect every 12,000 km (7,500 miles) or 12 months.
(3) After 72,000 km (45,000 miles) or 36 months, replace every 48,000 km (30,000 miles) or 24 months.
(4) Applicable when operating mainly on dusty roads. If not applicable, follow schedule B.
(5) Includes inspection of fuel tank band and vapor vent system.
(6) Non-maintenance item except for California and New York.

MAINTENANCE
159 Automatic transaxle
Inspect each component for signs of leakage. If you discover
any leakage, have it repaired by a qualified technician
immediately. Under severe driving conditions, change the fluid
and oil when scheduled.
SRS airbags
This should be periodically inspected by a qualified technician.
For details, see the maintenance schedule.
Bolts and nuts on chassis and body
Where necessary, retighten to specified torque.
Body inspection (paint, corrosion)
Visually check for corrosion, scratches and other damage.
Check body outer panels, underneath the vehicle, inner panels
of the hood and doors, etc. Apply touch-up paint to any chips
or scratches, or have them repaired by a qualified technician.
ROAD TEST
While driving the vehicle, check the proper operation of engine,
transmission, brakes and steering, and check for abnormal
noise or vibration from any part of the vehicle.