Help with transmission fill bolt

neworleans · Post by **neworleans** » 28 Jul 2019, 19:40

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.

Post by **cn90** » 28 Jul 2019, 19:55

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).

neworleans · Post by **neworleans** » 28 Jul 2019, 20:24

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.

Post by **abscate** » 28 Jul 2019, 21:05

Don’t touch that’s one!

Post by **chrism** » 28 Jul 2019, 21:55

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

Post by **cn90** » 28 Jul 2019, 22:04

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

Post by **MoVolvos** » 28 Jul 2019, 22:08

neworleans wrote: ↑28 Jul 2019, 20:24 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

Post by **MoVolvos** » 28 Jul 2019, 22:28

-
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

EngineeringBloke · Post by **EngineeringBloke** » 12 Aug 2019, 13:03

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

MDK · Post by **MDK** » 12 Aug 2019, 15:52

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!