Hi guys , I have an 81' 300 SD that I got a few months ago. There are a pair of wires that were cut and clipped under one of the clamps for the air cleaner( apparently to keep them out of the way) . When I trace them back they go into what appears to be a sensor device in the side of the transmission bell housing just above where the oil pressure sensor is . Does anyone know what this is and where this pair of wires is supposed to be attached. The local mechanic that does a lot of work on these older mercedes says he doesn't know , he 's never noticed it before. Any help appreciated.

catuch
84' 300D turbo
81' 300SD