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.

2017 Subaru Forester 2.0XT PremiumFACTORY OEM SERVICE PROCEDURE

Engine Coolant Temperature Sensor: Removal

Remove the collector cover.
1. Remove the clip (A).
2. Hold the shaded area (B) by hand and carefully pull the RH side (C) upward.
3. Hold the shaded area (D) by hand and carefully pull the LH side (E) upward.
Fig 1: Pulling Collector Cover (RH) And (LH) Side Upward
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the ground cable from battery.
Drain engine coolant. Ref. to COOLING(H4DOTC)>Engine Coolant>REPLACEMENT>DRAINING OF ENGINE COOLANT .
Disconnect the connector (A) from the engine coolant temperature sensor, and remove the engine coolant temperature sensor.

Fig 2: Locating Engine Coolant Temperature Sensor Connector

Courtesy of SUBARU OF AMERICA, INC.

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.