2018 TOYOTA AVENSIS water pump

4066-1. Using the air conditioning system and defogger
AVENSIS_OM_OM20C79E_(EE)
WARNING
■To prevent burns or damage on your vehicle
NOTICE
■To prevent damage to your vehicle
● Do not turn the heater on and off repeatedly in 5 minute intervals as this
can shorten the life of the heater components. If the engine must be turned
on and off repeatedly within short intervals (such as when the vehicle is
being used for delivery purposes), turn the heater off.
● Do not modify or open the heater without consulting any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer. This may
cause a heater malfunction or a fire.
● Be careful not to splash water or spill liquid directly on the heater or on the
heater fuel pump. This may cause the heater to malfunction.
● Keep the intake and exhaust pipes of the heater free from water, snow,
ice, mud, etc. If the pipes become clogged, this can cause the heater to
malfunction.
● If you notice anything unusual, such as a fluid leak, smoke or poor opera-
tion, turn off the heater and have your vehicle checked by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
● Do not touch the heater or its exhaust
pipe as they are hot.
● Keep flammable items such as fuel
away from the heater and its exhaust
pipe. This may cause a fire.

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 [-31F])
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 [-31F])
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.

4667-3. Do-it-yourself maintenance
AVENSIS_OM_OM20C79E_(EE)
If the fluid level is extremely low,
add washer fluid.
Raise the cap keeping your finger
pressed down on the hole in the
center and check the fluid level in
the tube.
NOTICE
■ When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
Washer fluid
WARNING
■ When refilling the washer fluid
Do not refill the washer fluid when the engine is hot or running, as the
washer fluid contains alcohol and may catch fire if spilled on the engine etc.
NOTICE
■ Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces, as well as
damaging the pump leading to problems of the washer fluid not spraying.
■ Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures list ed on the label of the washer fluid bot-
tle.

4677-3. Do-it-yourself maintenance
AVENSIS_OM_OM20C79E_(EE)
7
Maintenance and care
It is necessary to drain water from the fuel filter in the following situa-
tions:
Fuel filter type A*: Every 20000 km (12000 miles)
Fuel filter type B*: A warning message is displayed on the multi-infor-
mation display and a buzzer sounds. ( P. 543)
*: Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer for identifying the fuel filter type.
Have the fuel filter drained by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
Fuel filter (diesel engine)
NOTICE
■ When there is water in the fuel filter
Do not drive continuously with water accumulated in the fuel filter. This will
cause damage to the fuel injection pump.

6109-1. Specifications
AVENSIS_OM_OM20C79E_(EE)
Diesel engine
Drive belt
tension1ZR-FAE7.6  10.0 mm (0.30  0.39 in.)
*
*
: Drive belt deflection with 98 N (10 kgf, 22 lbf)
thumb force (used belt)
2ZR-FAE
3ZR-FAEAutomatic adjustment
CrankshaftGenerator
Water pump
Air
conditioning
compressor
Model 1WW, 2WW
Type 4-cylinder in line, 4-cycle, diesel
Bore and stroke
1WW engine
78.0  83.6 mm (3.07  3.29 in.)
2WW engine
84.0  90.0 mm (3.31  3.54 in.)
Displacement
1WW engine
1598 cm
3 (97.52 cu. in.)
2WW engine
1995 cm
3 (121.74 cu.in.)
Valve clearance
(engine cold)Automatic adjustment
Drive belt tension Automatic adjustment