How to change inverter coolant 4th gen

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by Leksvndr, Dec 20, 2019.

  1. jerrymildred

    jerrymildred Senior Member

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    No, you don't need Techstream to run the pump. Just put it in READY after the initial filling.

     
  2. Mendel Leisk

    Mendel Leisk Sand Pounder

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    Attached are the engine and inverter coolant change instructions. There's mention of Inspection Mode/Maintenance Mode, which I haven't tracked down as yet.
     

    Attached Files:

    #22 Mendel Leisk, Jan 16, 2021
    Last edited: Jan 16, 2021
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  3. Ostneb

    Ostneb Junior Member

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    I noticed that Nutsaboutbolts drains the inverter coolant from the inverter itself whereas the instructions ML posted drains from the radiator. Am I right to assume they both have the same effect?

    I would also note Nutsaboutbolts is working on a 3rd gen whereas ML posted instructions for 4th gen, but it was stated that the system is the same in both cars.

    Thanks for the clarification!
     
  4. DAVID QUENZER

    DAVID QUENZER Junior Member

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    Thank you so much for the files regarding coolant changes on a Gen 4 Prius. I found nothing online on how to do it. There are some changes from the Gen 3 that were confusing....but no more. Thanks again!
     
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