Transaxle fill and drain bolt, what wrenches do I need?

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by JDenyer232, Aug 10, 2017.

  1. JDenyer232

    JDenyer232 Member

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    Ok, so tomorrow I'm off to the dealer to get 4 quarts of ws fluid to change my transaxle fluid. Are both the drain and fill bolt 10mm Allen on the 2016 4th gen prius or something else, I wanna make sure I have what I need before I start this. Thanks in advance.
     
  2. mjoo

    mjoo Senior Member

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    Yes to both

    You'll want two new crush washers for the bolts. These are an OEM part.

    Pixel XL ?
     
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  3. mjoo

    mjoo Senior Member

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    Drain plug[​IMG]

    Pixel XL ?
     
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  4. mjoo

    mjoo Senior Member

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    Fill plug is to the left of the CV axle

    Pixel XL ?
     
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  5. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Open the fill plug before you open the drain plug. If the Fill plug was jammed, you do not want to have already drained the ATF before discovering this. (i have no idea how many times this has actually happened, but even once sounds bad)
     
  6. Elektroingenieur

    Elektroingenieur Senior Member

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    According to Toyota’s Repair Manual (available by subscription to techinfo.toyota.com and via the ChiltonLibrary service, to which many public libraries offer free access), both the filler plug and the drain plug on the P610 transaxle are installed and removed with a “10 mm hexagon socket wrench.”

    The torque specification for both plugs is 50 N·m {510 kgf·cm, 37 ft·lbf}, and as @mjoo kindly points out, you should use new gaskets, part number 90430-A0003 or 90430-18008.
     
  7. JDenyer232

    JDenyer232 Member

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    Thanks everyone for the info. I did know about pulling the fill plug first as I actually had that happen on the rear differential of a pickup truck once. Again thanks for the help everyone.
     
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  8. Mendel Leisk

    Mendel Leisk Senior Member

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    Also, the means to safely raise and level the car. This is assuming the drill is the same as third gen:

    With the car level, add fluid until it starts coming back out.

    Lots of ways to get it level, whatever works for you.
     
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  9. JDenyer232

    JDenyer232 Member

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    All done, just as easy as an oil change. The fluid with 20k miles on it looked almost the same as the new, wasn't nearly as dark as some of the pictures of low miles changes I have seen on here. I probably won't do it again till 100k miles. Leveling was pretty easy as my drive is inclined so I just backed it up the incline and drove it up on ramps, checked the level with a bubble level and went to town. I used a big breaker bar to loosen the drain and fill bolts, made it much easier.
     
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  10. eric1234

    eric1234 Active Member

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    Thanks! One final question. Do you recall the amount of oil required? Do I need to buy 4 quarts or 5?
     
  11. eric1234

    eric1234 Active Member

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    Never mind. 3.8 Quarts, as in the owners manual, and posted in the other thread by Mendel.
     
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  12. ETP

    ETP 2021 Prime(Limit),Highlander HYB Plat,B52-D,G,F,H

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    Is there a protective bottom panel over this?
    And can an old man with a belly fit under this car?:LOL::ROFLMAO:
     
  13. ETP

    ETP 2021 Prime(Limit),Highlander HYB Plat,B52-D,G,F,H

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    Don't see it. I assume the drain plug is the one with the gasket.
     
  14. Mendel Leisk

    Mendel Leisk Senior Member

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    Third and fourth gen transaxles are different, bolt locations shifted? There's some pics here of 4th gen drain and fill bolt locations IIRC, maybe if you search. I think the volume is still a little under 4 quarts, and the bolt style and washers are the same as 3rd gen. And the drill is the same when refilling, just have it level, fill till it comes back out.

    And the bolts are "socket head cap screw", require a 10mm hex wrench style socket? You'd figure that out as soon as you have a look. I think yeah you should take the cover off, the drain fluid is liable to splash on or into it, make a mess.
     
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  15. WilDavis

    WilDavis Senior Member

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    …and don't forget to remove the filler-plug before you remove the drain-plug! (Why? …well think about it!) ;)
     
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  16. Mendel Leisk

    Mendel Leisk Senior Member

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    OTOH, if you don't remove the fill bolt first, you will manage to remove it later, because you will be MOTIVATED. :ROFLMAO:
     
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  17. WilDavis

    WilDavis Senior Member

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    …or to use the vernacular, you will be incentivized to remove the filler-plug! :LOL:;)
     
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  18. mjoo

    mjoo Senior Member

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    Maybe if he looks at the picture in this thread with his reading glasses he'll see it... It's in the picture to the left of the CV axle. Maybe he's never seen a half shaft before.


    Pixel XL ?
     
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  19. Mendel Leisk

    Mendel Leisk Senior Member

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    This is my third gen kit. Do yourself a favour, get the torque value and use a torque wrench. I'm not sure about 4th Gen torque, third is 29 ft lb's, maybe the same? It's 10 mm hex socket recess on the bolt heads, if the same.

    IMG_7745.JPG

    Roughly 3' hose extension: leave it long and trim to suit. Big (resistance is futile) wrench for bolt removal makes life easy. :)
     
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  20. Mendel Leisk

    Mendel Leisk Senior Member

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    That one?

    upload_2017-10-3_10-1-20.png
     
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