I bought a new Kaehler Overload Protection Relay for my 1991 300d but .... it doesn't fit. It only has 6 pins and my old one has 7 and the pins are different. There's no way this will fit, even though it's supposed to be for W124's.

I'm just wondering if they sent me the wrong part or if the 300e W124's are different than the 300d?

Thanks,

jeff