2011 TOYOTA AVALON radiator

383
4-2. Maintenance
4
Maintenance and care
AVALON_U (OM41428U)
General maintenance
Engine compartment
ItemsCheck points
Battery • Maintenance-free (P. 405)
Brake fluid • At the correct level? (P. 402)
Engine coolant • At the correct level? (P. 400)
Engine oil • At the correct level? (P. 396)
Exhaust system • No fumes or strange sounds?
Power steering fluid • At the correct level? (P. 403)
Radiator/condenser/hoses• Not blocked with foreign matter?
(P. 401)
Washer fluid • At the correct level? (P. 408)
Listed below are the general maintenance items that should be per-
formed at the intervals specified in the “Scheduled Maintenance
Guide” or “Owner’s Manual Supplement”. It is recommended that
any problem you notice should be brought to the attention of your
Toyota dealer or qualified service shop for advice.

388 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
ItemsParts and tools
Engine oil level (P. 396)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (P. 432)• Fuse with same amperage rating
as original
Headlight aim (P. 441)• Phillips-head screwdriver
Power steering fluid level
(P. 403)
• Automatic transmission fluid
DEXRON® II or III
• Rag or paper towel
• Clean funnel
Radiator and condenser (P. 401)
Tire inflation pressure (P. 418)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 408)
• Water washer fluid containing anti-
freeze (for winter use)
• Funnel

4
Maintenance and care
389 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, 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 driving as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper or rags, in the
engine compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.

390 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
CAUTION
■When working near the electric cooling fan or radiator grille
Vehicles with smart key system
Be sure the “ENGINE START STOP” switch is turned OFF. With the
“ENGINE START STOP” switch in IGNITION ON mode, the electric cooling
fan may automatically start to run if the air conditioning is on and/or the cool-
ant temperature is high. (P. 401)
Vehicles without smart key system
Be sure the engine switch is OFF. With the engine switch in the “ON” posi-
tion, the electric cooling fan may automatically start to run if the air condition-
ing is on and/or the coolant temperature is high. (P. 401)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air. Also a backfire could cause a fire in the engine compart-
ment.

394
4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
Engine compar tment
Engine coolant reservoir
(P. 400)
Power steering fluid
reservoir (P. 403)
Engine oil filler cap
(P. 397)
Engine oil level dipstick
(P. 396)Brake fluid reservoir
(P. 402)
Fuse box (P. 432)
Battery (P. 405)
Radiator (P. 401)
Electric cooling fans
Condenser (P. 401)
Washer fluid tank
(P. 408)

400 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
Engine coolant
The coolant level is satisfactory if it is between the “F” and “L” lines on
the reservoir when the engine is cold.
Reservoir cap
Full
Low
If the level is on or below the “L”
line, add coolant up to the “F” line.
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, coolant reservoir cap, radiator cap, drain
cock and water pump.
If you cannot find a leak, have your Toyota dealer pressure test the cap and
check for leaks in the cooling system.
■Coolant selection
Only use “Toyota Super Long Life Coolant” or similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50 % coolant and
50 % deionized water. (Enabled: -31F [-35C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55 % coolant
and 45 % deionized water. (Enabled: -44F [-42C])
For more details about coolant, contact your Toyota dealer.

4
Maintenance and care
401 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
Radiator and condenser
Check the radiator and condenser and clear any foreign objects.
If either of the above parts are extremely dirty or you are not sure of
their condition, have your vehicle checked by your Toyota dealer.
CAUTION
■When the engine is hot
Do not remove the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing burns or other injuries.
NOTICE
■When adding the coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and anti freeze 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 to parts or paint.
CAUTION
■When the engine is hot
Do not touch the radiator or condenser, as they may be hot and you may be
burned.

500
5-2. Steps to take in an emergency
AVALON_U (OM41428U)
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam
subsides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the engine coolant temperature gauge begins
to fall and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call your local Toyota
dealer.
After the engine has cooled
down sufficiently, check the
coolant level and inspect the
radiator core (radiator) for any
leaks.
If the engine compartment
cover needs to be removed.
(P. 395)