I thought that there was one socket that fit diesel engines and the other fit gas engines. I tried my diesel socket that I know fits the 123 diesel engine, on an '86 190D and it was too big.

I have ordered a socket for my M103, and I'm waiting on it. Will it fit the '86 190D?

Thanks for any help you can offer, my friend is in a bind for the socket. If the one I have on the way will not fit, we need to start looking for the one that will.

Thanks and have a great day,


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Larry Bible
'84 Euro 240D, 523K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in
Mercedes automobiles

Yes! The 10mm Spline socket will work on OM60_series engines.