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7-3. Do-it-yourself maintenance
IS350/250_U (OM53C50U)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condi-
tion, have your vehicle inspected by your Lexus dealer.
■ When the engine is hot
Do not remove the engine coolant reservoir cap or radiator cap. (P. 508)
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.
■ When adding 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 cool-
ing. 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 parts or paint.
Radiator and condenser
■ When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause serious injuries,
such as burns.
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