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.
2021 Subaru Crosstrek HybridFACTORY OEM SERVICE PROCEDURE
Engine Coolant Temperature Sensor: Removal
- Disconnect the ground terminal from battery. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
- Drain engine coolant. (Engine side) Ref. to COOLING (H4DO(HEV))>ENGINE COOLANT>REPLACEMENT>DRAINING OF ENGINE COOLANT>ENGINE SIDE .
- Remove the collector cover. Ref. to INTAKE (INDUCTION) (H4DO (EXCEPT FOR HEV))>COLLECTOR COVER>REMOVAL .
- Remove the air intake duct. Ref. to INTAKE (INDUCTION) (H4DO (EXCEPT FOR HEV))>AIR INTAKE DUCT>REMOVAL .
- Remove the cover UPR - front.
- Remove the bracket - hood stay.
- Lift up the vehicle.
- Remove the front under cover. Ref. to EXTERIOR/INTERIOR TRIM>FRONT UNDER COVER>REMOVAL .
- Remove the inverter radiator outlet hose and inverter tank outlet hose from the clamp.
- Lower the vehicle.
- Remove the bolt securing the inverter tank, and place it aside so that it does not interfere with the work.
- Remove the compressor bracket - front.
- Move the electric compressor assembly in the direction of arrow.
- Disconnect the connector (A) and remove the engine coolant temperature sensor using the ST.
NOTE:
STRUT MOUNT SOCKET (20099PA000) can also be used.
Preparation tool:Β
ST: STRUT MOUNT SOCKET (20399AG000)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
