Page 453 of 660
4537-3. Do-it-yourself maintenance
AVENSIS_OM_OM20C79E_(EE)
7
Maintenance and care
Engine compartment
Gasoline engine
Washer fluid tank (P. 466)
Engine coolant reservoir
(P. 461)
Engine oil filler cap (P. 458)
Engine oil level dipstick
(P. 456)Battery (P. 463)
Fuse box (P. 496)
Electric cooling fan
Condenser (P. 463)
Radiator (P. 463)1
2
3
4
5
6
7
8
9
Page 454 of 660
4547-3. Do-it-yourself maintenance
AVENSIS_OM_OM20C79E_(EE)
Diesel engine
Washer fluid tank (P. 466)
Engine coolant reservoir
(P. 461)
Engine oil filler cap (P. 458)
Engine oil level dipstick
(P. 456)
Fuel filter (P. 467)Fuse box (P. 496)
Battery (P. 463)
Electric cooling fans
Condenser (P. 463)
Intercooler (P. 463)
Radiator (P. 463)1
2
3
4
5
6
7
8
9
10
11
Page 462 of 660

4627-3. Do-it-yourself maintenance
AVENSIS_OM_OM20C79E_(EE)
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant reservoir cap, drain cock
and water pump.
If you cannot find a leak, have any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer, test the cap and check for leaks in the
cooling system.
■ Coolant selection
Gasoline engine
Only use “Toyota Super Long Life Cool ant” or 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% deion-
ized water. (Enabled: -35 C [-31F])
Diesel engine
Only use “Toyota Genuine Premium Long Life Coolant 1WW/2WW” or equiv-
alent. “Toyota Genuine Premium Long Life Coolant 1WW/2WW” concen-
trated product always needs to be mixed as 50% coolant and 50% deionized
water. (Enabled: -35 C [-31F])
For more details about engine coolant, contact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
WARNING
■ When the engine is hot
Do not remove the coolant reservoir cap.
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 engine 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 damage to parts or paint.
Page 601 of 660

6018-2. Steps to take in an emergency
AVENSIS_OM_OM20C79E_(EE)
8
When trouble arises
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
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 immedi-
ately 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 any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
If the fan is operating:
Have the vehicle inspected at the nearest authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
5
WARNING
■ To prevent an accident or injury when inspecting under the hood of
your vehicle
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injury such as burns.
● Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fan and belts. Failure to do so may cause the hands or clothing to be
caught, resulting in serious injury.
● Do not loosen the coolant reservoir cap while the engine and radiator are
hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
6
7
Page 653 of 660

653Alphabetical index
AVENSIS_OM_OM20C79E_(EE)
Radiator .................................... 463
Radio
*....................................... 325
Radio data system (RDS)
*...... 329
Rear fog light
Replacing light bulbs ............. 515
Switch ................................... 241
Wattage................................. 625
Rear passenger’s seat belt
reminder ................................. 532
Rear seat
Folding down the rear
seatbacks ........................... 168
Rear turn signal lights
Replacing light bulbs ..... 511, 512
Turn signal lever ................... 229
Wattage................................. 625
Rear view mirror
Inside rear view mirror .......... 176
Outside rear view mirrors ...... 179
Rear view monitor system
*
Rear window defogger .... 394, 401
Rear window wiper .................. 247
Refueling .................................. 248
Capacity ................................ 611
Fuel types ............................. 611
Opening the fuel tank cap ..... 250
When the fuel filler door
cannot be opened ............... 250
Replacing
Electronic key battery............ 493
Fuses .................................... 496
Light bulbs............................. 501
Tires ...................................... 570
Wireless remote control
battery................................. 493
Reset the maintenance data ... 459
RSA (Road Sign Assist) .......... 284Seat belts.................................... 34
Adjusting the seat belt ............ 35
Child restraint system
installation ............................ 64
Cleaning and maintaining
the seat belts ...................... 441
Emergency Locking
Retractor............................... 36
How to wear your seat belt ..... 34
How your child should wear
the seat belt.......................... 36
Pregnant women, proper seat
belt use ................................. 37
Reminder light and
buzzer................................. 532
Seat belt pretensioners ........... 35
SRS warning light ................. 530
Seat heaters ............................. 407
Seat position memory ............. 170
Seats
Adjustment ............................ 166
Adjustment
precautions......................... 167
Child seats/child restraint
system installation ................ 55
Cleaning................................ 440
Driver’s seat position
memory .............................. 170
Folding down the rear
seatbacks ........................... 168
Head restraint ....................... 172
Properly sitting in the seat ...... 32
Seat heaters ......................... 407
Seat position memory ........... 170
RS
*: For vehicles with navigation system or multimedia system, refer to
“Navigation and multimedia system Owner’s manual”.