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Help with transmission fill bolt

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neworleans
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Help with transmission fill bolt

Post by neworleans » Sun Jul 28, 2019 7:40 pm

Hello all,

I was planning to flush the transmission fluid on my 07 S60 2.5T and was really surprised when I saw this 5 point bolt because I was expecting a torx screw rather. First time I see a 5 point bolt on a Volvo. Do you all think this is original or it could be the previous owner changed it maybe after stripping the torx screw? Any idea what size of 5 point socket this is? Thank you.
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cn90
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Re: Help with transmission fill bolt

Post by cn90 » Sun Jul 28, 2019 7:55 pm

It is a good thing you ask.
If you ever remove that bolt, you WILL regret BIG time.

For my 2004 V70 2.5T:
Drain: 24-mm bolt.
Fill is via dipstick tube. I posted the trick using the long funnel (search forum).


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Re: Help with transmission fill bolt

Post by neworleans » Sun Jul 28, 2019 8:24 pm

cn90, thanks for your reply.
I also have a 07S60R and that one doesn't have a dipstick tube so I thought this one would also have a fill screw just like the R and I noticed this bolt :)
I just looked for the tube and located it. Thanks again.



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Re: Help with transmission fill bolt

Post by abscate » Sun Jul 28, 2019 9:05 pm

Don’t touch that’s one!
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Re: Help with transmission fill bolt

Post by chrism » Sun Jul 28, 2019 9:55 pm

It’s a plane looking six point bolt on my 2003. I guess Volvo thought switching to five point would discourage some accidental removals.



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Re: Help with transmission fill bolt

Post by cn90 » Sun Jul 28, 2019 10:04 pm

Volvo should have placed a label there stating "Do NOT touch", but they did not place the label.


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Re: Help with transmission fill bolt

Post by MoVolvos » Sun Jul 28, 2019 10:08 pm

neworleans wrote:
Sun Jul 28, 2019 8:24 pm
cn90, thanks for your reply.
I also have a 07S60R and that one doesn't have a dipstick tube so I thought this one would also have a fill screw just like the R and I noticed this bolt :)
I just looked for the tube and located it. Thanks again.
IPD shows an 07 S60R has the TF-80SC AWD (6 Speed). The 2.5T has the AW55-5X.

https://www.ipdusa.com/

Volvopartswebstore.com shows a dipstick for the 07 S60 2.5T in their transmission diagram.

https://www.volvopartswebstore.com/show ... evel=24659

EDIT: TF-80SC AWD Trans Fluid Flush - Drain and Fill Method.



EDIT: Hose Flush - Fuller Replacement



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Re: Help with transmission fill bolt

Post by MoVolvos » Sun Jul 28, 2019 10:28 pm

-
Can't tell what year this is but it's the AW55-50 - VERY GOOD VIDEO!

DIY Volvo automatic gearbox flush AW55-50, MANNOL 3309 with oil comparision


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Re: Help with transmission fill bolt

Post by EngineeringBloke » Mon Aug 12, 2019 1:03 pm

Just in case it was not made clear in the comments above. The bolt, which was changed to a specialized 5 sided bolt to discourage removal, is not for a transmission oil fill hole cover, but retains a ring within the transmission. When unbolted, the ring can rotate out of position and require transmission removal and renovation.

Fortunately, some have found a way to rotate the ring back without removal but I would not want to risk it:
viewtopic.php?t=79032



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Re: Help with transmission fill bolt

Post by MDK » Mon Aug 12, 2019 3:52 pm

Not trying to be a wise guy here. But that 5 point bolt means that they don't want you to take it out. It holds the bands for the transmission in place... WARNING !WARNING! DANGER WILL ROBINSON DANGER!



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