1995 Lexus LS400 air condition

MAINTENANCE
178
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 the 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 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 parts 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 systems.
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.
You can be confident that your Lexus dealer’s service
department performs the best job to meet the maintenance
requirements of your vehicle − reliably and economically.

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182
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 after 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 floors, vehicle pulls to one side when
braking

Engine coolant temperature continually higher than normal
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 service 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
184SCHEDULE 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.Km x 1,0001.66121824303642485460667278849096MonthsMiles x 1,00013.757.511.251518.7522.526.253033.7537.541.254548.7552.556.2560ENGINE COMPONENTS AND EMISSION CONTROL SYSTEMSTiming beltSee note (1)Valve clearanceAA: Every 72 monthsDrive belt See notes (2)II: See note (2)Engine oil and oil filterRRRRRRRRRRRRRRRRR: Every 6 monthsEngine coolant See note (3)RR: See note (3)Exhaust pipes and mountingsIIIII: Every 24 months
Air cleaner 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 () or asterisk () 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, Massachusetts, New York, New Jersey. Connecticut, Pennsylvania, Vermont, Rhode Island and New Hampshire only
 For vehicles sold outside California, Massachusetts, New York. New Jersey, Connecticut, Pennsylvania. Vermont, Rhode Island and New Hampshire
NOTE:
(1) If you operate your vehicle under conditions of extensive idling and / or low speed driving for a long distance such as police, taxi or door to door delivery use, replace
every 96,000 km (60,000 miles). If not applicable, follow schedule B.
(2) After 96,000 km (60,000 miles) or 72 month, inspect every 12,000 kin (7,500 miles) or 12 months.
(3) After 72,000 kin (45.000 miles) or 36 months, replace every 48,000 km (30,000 miles) or 24 months.
(4) Applicable when operating mainly on dusty road. It not applicable, follow schedule B.
(5) Includes inspection of vapor vent system.
(6) Non−maintenance item except for California, Massachusetts, New York. New Jersey, Connecticut. Pennsylvania, Vermont, Rhode Island and New Hampshire.

MAINTENANCE
185 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.km x 1,0001.66121024303642485460667278849096MonthsMiles x I,00013.757.511.251518.1522.526.253033.7537.541.254548.7552.556.2560CHASSIS AND BODYBrake linings and drumsIIIIIIIII: Every 12 monthsBrake pads and discsIIIIIIIII: Every 12 monthsBrake fluidIIRIRR: Every 36 monthsBrake line pipes and hosesIIIII: Every 24 monthsSteering linkageIIIIIIIII: Every 17 monthsSRS airbagsAfter inspection at 10 years, inspect every 2yearsSteering gear box See note (7)IIIIII: Every 24 monthsBall joints and dust coversIIIIIIIII: Every 12 monthsAutomatic transmission and differentialIRRRRR: Every 24 months
Bolts and nuts on chassis and body
See note (8)IIIIIIIIII: Every 12 months
Body inspection (paint, corrosion)IIIIIIIIII: Every 12 months
Air conditioning filterIIIRIIIRIIIRIIIRI: Every 6 months
R: Every 24 months
ROAD TESTIIIIIIIIII: Every 12 months
NOTE:
(7) Inspect the steering gear housing for ca leakage only
(8) Applicable when operating mainly on rough and / or muddy roads. If not, follow schedule B.

MAINTENANCE
187 SCHEDULE B
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.km x 1,0001.61224364860728496MonthsMiles x 1,00017.51522.53037.54552.560CHASSIS AND BODYBrake linings and drumsIIIII: Every 24 monthsBrake pads and discsIIIII: Every 24 monthsBrake fluidIIRIRR: Every 36 monthsBrake line pipes and hosesIIIII: Every 24 monthsSteering linkageIIIII: Every 24 monthsSRS airbagsAfter inspection at 10 years, inspect every 2 years.Steering gear box See note (5)IIIIII: Every 24 monthsBall joints and dust coversIIIII: Every 24 monthsAutomatic transmission and differentialIIIIII: Every 24 monthsBolts and nuts on chassis and bodyIIIIII: Every 24 monthsBody inspection (paint, corrosion)IIIIIIIIII: Every 12 months
Air conditioning filterIRIRIRIRI: Every 12 months
R: Every 24 months
ROAD TESTIIIIIIIIII: Every 12 months
NOTE:
(5) Inspect the steering gear housing for oil leakage only.

MAINTENANCE
189 CHASSIS AND BODY
Brake linings and drums
Check for scoring, burning, leaking fluid, broken parts, and
excessive wear. A qualified technician should perform this
operation.
Brake pads and discs
Check the pads for excessive wear and discs for runout and
wear, and leaking fluid. A qualified technician should perform
this operation.
Brake fluid
Check for correct levels of the brake fluid. If the level is low, add
FMVSS No. 116 DOT 3 or SAE J1703 brake fluid to the brake
reservoir. Change the brake fluid as scheduled. A qualified
technician should perform these operations.
Brake line pipes and hoses
Visually check for proper installation. Check for chafing,
cracks, deterioration, and any evidence of leaking. Replace
any deteriorated or damaged parts immediately. A qualified
technician should perform these operations.
Steering linkage
With the vehicle stopped, check for excessive freeplay in the
steering wheel. Check the linkage for bend or damage.
Replace any damaged parts.
SRS airbags
They should be periodically inspected by a qualified
technician. For details, see the maintenance schedule.Steering gear box
Inspect the steering gear box for signs of leakage. If you
discover any leakage, have it repaired by a qualified technician
immediately.
Ball joints and dust covers
Check the suspension and steering linkage ball joints for
looseness or damage. Check all dust covers for deterioration
or damage. A qualified technician should perform these
operations.
Automatic transmission and differential
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.
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.
Air conditioning filter
Check the air flow quantity. Clean or replace the filter according
to the maintenance schedule.