Same here, I just replaced mine today. I think replacing this thing is some kind of IQ test .
I did a search and read a bunch of stuff. and somehow I thought it lined up on position #1. so after much fumbling around I pick up the new tumbler and notice the slot in the collar, so where is this elusive hole

Holding the tumbler in my left hand, and pushing down on the springy lock part on the side, and turning the key lining up the slot, the springy thing will snap down and line up the hole. then just slide the paper clip in. (yes in my case the paper clip worked)

so with this great amount of knowledge I figure out it is position #2 where the hole is. and the paperclip slides right in. then the collar will screw right off w/o any tools in my case.

took a few tries getting the tumbler lined up with the slot in the collar and it screws back together.

looks like there is a roll pin just to the left of the hole. Iam wondering if it was drilled out if the springy lock thing would fall out and eliminate the problem with the key sticking. I know it would defeat the original purpose of it. just thinking.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

I believe drilling out that particular roll pin would release the locking pawl and without the pawl, the lock would turn with the paper clip being inserted.

(Of course the lock cylinder would have to not be installed to remove the pawl...in case someone reads this and is concerned about security issues.)

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Sam

84 300SD 350K+ miles ( Blue Belle )