Since I can't reuse an attachment I've already attached, here's a link to the thread I attached them to.
W123 ignition + door lock leaves, locksmith

Part way down, I added some data about which wafers are in which lock. It's mostly about the side winder keys but the sizes of the cuts should be the same.

Michael

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Usta haves '69 250/8, '76 280C, 1971 250C 114.023, 1976 450SEL 116.033
Current have, 1983 300SD 126.120

I actually read your post before I even attempted this.
Shame I couldn't find any new blanks -even with the part numbers you provided...

In the end, I had just enough between the two locks I harvested at the JY to rekey both damaged tumblers. I needed two number 1 leaves I didn't have, but sanding down the edges on two number 3s gave me the clearance I needed.

Everything's back in working order for about $18.

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1981 240D 4sp manual. Ivory White.

And there you have the method I didn't want to mention unless you got stuck :

Harvesting spare parts from other locks then machining them so they fit and work properly .

I like to have one key work every lock on every vehicle .

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-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Stuck? Isn’t this the only method if you don’t want multiple keys?

People on here and on eBay wanted $100 for a used trunk assembly, and $80 to re-key it.
No chance.

This was much easier than, say, a valve adjustment.

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1981 240D 4sp manual. Ivory White.

Yes ;

I haven't met you in person so I don't know how technical you get into things .

I said it was a fairly simple thing, many think otherwise .

Like most things German, it's not overly difficult, it's just fiddly is you want good results .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better