Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2018 Lexus RC FFACTORY OEM SERVICE PROCEDURE

Components [09/2014 - ]

Fig 1: Engine Coolant Temperature Sensor Replacement Components With Torque Specifications

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*1	CENTER NO. 4 ENGINE UNDER COVER	*2	COOL AIR INTAKE DUCT SEAL
*3	ENGINE COOLANT TEMPERATURE SENSOR	*4	V-BANK COVER SUB-ASSEMBLY
*5	GASKET	-	-
	N.m (kgf/cm, ft.lbf): Specified torque	*	For use with a union nut wrench
•	Non-reusable part	-	-

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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