Hi All,

My 1983 380SEC has an oil temperature switch screwed into the front timing cover close to the oil filter housing. My 1985 SE engine does not have a switch bot the same hole is plugged with a threaded plug. I was trying (don't ask why - this is not the issue) to put the same oil temperature switch from my 83 into the 85 and to my surprise the two threads are not the same size (one is like a 12mm the other is like a 14mm). Is there a specific reason for that? Is there an oil temperature switch that will fit the smaller thread in my 1985 engine?

Thanks,

Greg

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1983 560SL Megasquirted (originally 380SL)

My former Mercedes:
1985 300SD ~190k
1990 560SEL
2000 C220 CDI
1983 380SEC 102k dual-chain conversion
2000 C280 70k (sold)
1987 300DT (W124 - sold)
1972 220D (sold)
1971 220D (sold)