2021 Subaru Crosstrek HybridFACTORY OEM SERVICE PROCEDURE

Engine Coolant Temperature Sensor: Removal

  1. Disconnect the ground terminal from battery. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
  2. Drain engine coolant. (Engine side) Ref. to COOLING (H4DO(HEV))>ENGINE COOLANT>REPLACEMENT>DRAINING OF ENGINE COOLANT>ENGINE SIDE .
  3. Remove the collector cover. Ref. to INTAKE (INDUCTION) (H4DO (EXCEPT FOR HEV))>COLLECTOR COVER>REMOVAL .
  4. Remove the air intake duct. Ref. to INTAKE (INDUCTION) (H4DO (EXCEPT FOR HEV))>AIR INTAKE DUCT>REMOVAL .
  5. Remove the cover UPR - front.
    G13230899Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the bracket - hood stay.
    G13230900Courtesy of SUBARU OF AMERICA, INC.
  7. Lift up the vehicle.
  8. Remove the front under cover. Ref. to EXTERIOR/INTERIOR TRIM>FRONT UNDER COVER>REMOVAL .
  9. Remove the inverter radiator outlet hose and inverter tank outlet hose from the clamp.
    G13230901Courtesy of SUBARU OF AMERICA, INC.
  10. Lower the vehicle.
  11. Remove the bolt securing the inverter tank, and place it aside so that it does not interfere with the work.
    G13230902Courtesy of SUBARU OF AMERICA, INC.
  12. Remove the compressor bracket - front.
    G13230903Courtesy of SUBARU OF AMERICA, INC.
  13. Move the electric compressor assembly in the direction of arrow.
  14. 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)

G13230904Courtesy 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:

  • 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.