2016 LEXUS LS460L radiator

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Maintenance and care
LS460/LS460L_GE (OM50G06E)
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct
procedure as given in these sections.
ItemsParts and tools
Battery condition (P. 549)
•Warm water
• Baking soda
•Grease
• Conventional wrench
(for terminal clamp bolts)
•Distilled water
Engine coolant level ( P. 547)
•“Toyota Super Long Life Coolant” or
a similar high quality ethylene glycol-
based non-silicate, non-amine, non-
nitrite and non-borate coolant with
long-life hybrid organic acid technol-
ogy
“Toyota Super Long Life Coolant” is
pre-mixed with 50% coolant and
50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level ( P. 544)
• “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding engine
oil)
Fuses ( P. 579)• Fuse with same amperage rating as
original
Light bulbs ( P. 584)
• Bulb with same number and wattage
rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser ( P. 549)

5346-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
Tire inflation pressure (P. 568)• Tire pressure gauge
• Compressed air source
Washer fluid ( P. 553)
• Water or washer fluid containing anti-
freeze (for winter use)
• Funnel (used only for adding water or
washer fluid)
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious
injury, observe the following precautions.
■When working on the engine compartment
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
●Take care because brake fluid can harm your hands or eyes and damage painted
surfaces. If fluid gets on your hands or in your eyes, flush the affected area with
clean water immediately.
If you still experience disc omfort, consult a doctor.
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may
automatically start to run if the air conditioning is on and/or the coolant tempera-
ture is high. ( P. 549)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from get-
ting in your eyes.
ItemsParts and tools

5396-3. Do-it-yourself maintenance
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
2WD models
For right-hand drive vehicles:
The battery and the fuse box in front of the battery are located on the opposite side
of the engine compartment.
Engine compartment
Battery ( P. 549)
Engine oil level dipstick
( P. 544)
Air cleaners ( P. 554)
Engine oil filler cap ( P. 545)
Washer fluid tank ( P. 553)
Electric cooling fans
Condenser ( P. 549)
Radiator ( P. 549)
Engine coolant reservoir
( P. 547)
Fuse boxes ( P. 579)
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5406-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
AWD models
Battery (P. 549)
Engine oil level dipstick
( P. 544)
Air cleaners ( P. 554)
Engine oil filler cap ( P. 545)
Washer fluid tank ( P. 553)
Electric cooling fans
Condenser ( P. 549)
Radiator ( P. 549)
Engine coolant reservoir
( P. 547)
Fuse boxes ( P. 579)
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5486-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life
hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized
water. (Minimum temperature: -35 C [-31F])
For more details about engine coolant, contact your Lexus dealer.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock and
water pump.
If you cannot find a leak, have your Lexus dealer test the cap and check for leaks in
the cooling system.
CAUTION
■When the engine is hot
Do not remove the engine coolant reservoir cap. ( P. 644)
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water
and antifreeze must be used to provide proper lubrication, corrosion protection
and cooling. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

5496-3. Do-it-yourself maintenance
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their
condition, have your vehicle in spected by your Lexus dealer.
Check the battery as follows.
■Removing the battery cover
P. 543
■Caution symbols
The meanings of each caution symbol on the top of the battery are as
follows:
Radiator and condenser
CAUTION
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause serious inju-
ries, such as burns.
Battery
No smoking, no naked
flames, no sparksBattery acid
Shield eyesNote operating instruc-
tions
Keep away from childrenExplosive gas

6417-2. Steps to take in an emergency
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When trouble arises
LS460/LS460L_GE (OM50G06E)
●The needle of the engine coolant temperature gauge ( P. 125) enters
the red zone or a loss of engine po wer is experienced. (For example,
the vehicle speed does not increase.)
●Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning system,
and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
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6437-2. Steps to take in an emergency
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When trouble arises
LS460/LS460L_GE (OM50G06E)
Start the engine and turn the air conditioning system on to check that
the radiator cooling fan operates and to check for coolant leaks from
the radiator or hoses.
The fan operates when the air conditioning system is turned on immediately after
a cold start. Confirm that the fan is operating by checking the fan sound and air
flow. If it is difficult to check these, turn the air conditioning system on and off
repeatedly.
(The fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the engine immediately and contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the nearest Lexus dealer.
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