I have a 1991 190e 2.6 liter. I'm replacing the seals in my differential and ran into a problem. The cap screws holding the axle connecting flange look like what I'd expect a fine torx head to look like in that it has the same kind of teeth, only more and finer. What is the tool and where can I obtain one? Are there any other ideas as to how to remove these screws?

Thanks.

That style is called "Triple Square", also referred to as "12 point" (4 squares set at 120 degrees from each other). That's sold I believe just in Metric sizes, the one you need I believe is 10mm, the smallest generally available. Could try Sears, I can try their website. SnapOn has it, # STSM10E

Gilly

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Ran into somewhat of the same problem
Went over to Auto Zone
They had a 12 point metric interal wrench set
Thats whats on the package
made by OEM parts
I needed it to take off the cap screw on the rearend rubber mounbt on my 560s .
I think its the same , when I first looked at it it had me thinking
count the points if there is 12 its it

Thanks,

I just came back from the local AutoZone. They had it!