water pump Lexus IS220d 2012 Owner's Manual

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3-1. Using the air conditioning system and defogger
IS250/220d/200d_EE
CAUTION
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
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional. This may cause a heater malfunction or even 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 mal-
function.
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
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
Do not touch the heater or its exhaust
pipe as they are hot. You may burn
yourself.
Keep flammable items such as fuel
away from the heater and its exhaust
pipe, as this may cause a fire.

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4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant filler cap, radiator cap,
drain cock and water pump.
If you cannot find a leak, have any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional, test the cap and check for
leaks in the cooling system.
Coolant selection
Only use “Toyota Super Long Life Coolant” or similar high-quality eth-
ylene 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. (Enabled: -35C [-31F])
For more details about engine coolant, contact any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
CAUTION
When the engine is hot
Do not remove the radiator cap (IS250), or the coolant reservoir cap (IS220d
and IS200d).
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.

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5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
CAUTION
When the electric power steering warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, firmly
hold and operate it using more force than usual.
NOTICE
If the fuel filter warning light comes on (vehicles with a manual transmis-
sion)
Never drive the vehicle with the warning light on. Continued driving with
water accumulated in the fuel filter will damage the fuel injection pump.