There are 2 coolant temp senders. One runs the dash gauge, the other gives info the the ECU. I think the plugs are keyed to prevent crossing, but who knows what a PO may have done..
Good - Fast - Cheap: Pick any two.
E23 735i; E30 318i; E32 735iL (X 2 - 1 White and 1 Light Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
E21 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i
Last edited by BMWFatherFigure; 01-21-2013 at 10:45 AM.