2008 TOYOTA AVALON radiator cap

306
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
Engine compar tment
Engine coolant reservoir
(  P. 313)
Power steering fluid 
reservoir ( P. 316)
Engine oil filler cap 
(  P. 309)
Engine oil level dipstick 
(  P. 308)
Brake fluid reservoir 
(  P. 315)Fuse box ( P. 344)
Battery ( P. 318)
Radiator ( P. 314)
Electric cooling fans
Condenser ( P. 314)
Washer fluid tank 
( P. 321)

4
Maintenance and care
313
4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
Engine coolant
The coolant level is satisf actory 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.

314 4-3. Do-it-yourself maintenance
AVALON_U_(L/O_0802)
Radiator and condenserCheck the radiator and condenser and clear any foreign objects. 
If either of the above parts are extr emely dirty or you are not sure of
their condition, have your vehicl e 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 not 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.

402 5-2. Steps to take in an emergency
AVALON_U_(L/O_0802)
■Overheating
In the following situations, your vehicle may be overheating.
● The engine coolant temperature gauge enters the red zone or a loss of
power is experienced.
● Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
● Keep hands and clothing away from the fan and engine drive belt while the
engine is running.
● Do not loosen the radiator cap while the engine and radiator are hot. 
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
Add coolant if required.
Water can be used in an emer-
gency measure if coolant is
unavailable. ( P. 410)
Have the vehicle checked at your nea rest Toyota dealer as soon as
possible.
STEP6

447
Alphabetical index
AVALON_U_(L/O_0802)
Overhead console ................... 258
Overheating, Engine ............... 401
Parking brake .......................... 134
Parking lights
Replacing light bulbs ............ 355
Switch ................................... 143
Wattage ................................ 413
Personal light Switch ................................... 254
Wattage ................................ 413
Power outlets........................... 268
Power windows ......................... 66
Radiator.................................... 314
Radio ........................................ 191
Rear seat Adjustment ............................. 48
Rear sunshade ........................ 273
Rear turn signal lights Replacing light bulbs ............ 355
Wattage ................................ 413
Rear window defogger............ 187
Replacing
Fuses.................................... 344
Key battery ........................... 340
Light bulbs ............................ 355
Tires ..................................... 382
Reporting safety defects for 
U.S. owners ........................... 436
Seat belts Adjusting the seat belt ............ 55
Automatic locking retractor................................ 56
Child restraint system 
installation .......................... 102
Cleaning and maintaining 
the seat belts...................... 292
Emergency locking 
retractor................................ 56
How to wear your seat belt ..... 54 How your child should wear

the seat belt ..........................57
Pregnant women, 
proper seat belt use ..............57
Reminder light .......................373
Seat belt extenders .................58
Seat belt pretensioners ...........56
Seat heaters..............................270
Seating capacity.......................169
Seats Adjustment ........................ 46, 48
Adjustment precaution ......47, 49
Child seats/child restraint system installation ..............102
Cleaning ................................291
Climate control ......................270
Climate control seat ..............270
Driver’s seat position 
memory .................................50
Head restraint..........................53
Properly sitting in the seat .......80
Seat heaters ..........................270
Service reminder 
indicators ..............................139
Shift lever
Automatic transmission .........129
If the shift lever cannot be 
shifted from P......................393
Shift lock system .....................393
Shopping bag hooks ...............276
Side airbags................................82
Side marker lights Switch....................................143
Side mirror
Adjustment ..............................64
Mirror position memory ...........50
Smart key system
Antenna location .....................26
Entry function ..........................24
Starting the engine ................122
Spare tire Inflation pressure...................412
Spare tire...............................382
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