Tesla Model 3 Owners & Service Manuals

Tesla Model 3: Heat Exchanger - Rear Drive Unit (Remove and Replace)

Tesla Model 3 2017-2025 Service Manual / Rear Drive Unit / Rear Gearbox and Halfshafts / Heat Exchanger - Rear Drive Unit (Remove and Replace)

 Heat Exchanger - Rear Drive Unit (Remove and Replace)  

Remove

  Note: Rear subframe assembly components have been removed from illustrations for clarity. It is not necessary to remove the rear drive unit from the rear subframe assembly to perform this procedure.
  1. Remove the rear subframe assembly. See Subframe Assembly - Rear (Remove and Install).

  Heat Exchanger - Rear Drive Unit (Remove and Replace)

  1. Release the clips (x3) that attach the coolant outlet hose to the motor and heat exchanger body.

  Heat Exchanger - Rear Drive Unit (Remove and Replace)

  1. Disconnect the coolant outlet hose from the heat exchanger.

  Heat Exchanger - Rear Drive Unit (Remove and Replace)

  1. Release the clips (x4) that attach the coolant inlet hose to the LH mount, gearbox, and heat exchanger body.

  Heat Exchanger - Rear Drive Unit (Remove and Replace)

  1. Disconnect the coolant inlet hose from the heat exchanger.

  Heat Exchanger - Rear Drive Unit (Remove and Replace)

  1. Remove the bolts (x3) that attach the heat exchanger to the rear drive unit, and then remove the heat exchanger from the rear drive unit. Torque 5 Nm +30 deg

Install

Installation procedure is the reverse of removal.

 Caution: Perform a push-pull test to verify that the hose is fully seated.

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