A lil game of guess where the cable goes!
 

While taking a look under the hood, I've found a connector duck taped on another cable laying around and not connected to anything. It was on the driver's side next to the engine.

I've found another cable and it was the coolant sensor cable.

I'm left with this cable laying around under the hood and I don't know where it goes. I've attached pictures and any help is much appreciated!

Thanks!

I have an 03 3.0 and I have that same cable in the same spot ductaped too. I assumed its for some option i did not get.

The one in the first pic has a plastic plug cap on it which means it was left like that on purpose... if the second pic is it with the cap off you can just put it back on and not worry about it. BMWs are wired for all kinds of things that aren't installed/options so there are wires like that everywhere.

retrofit connection plug for independant heater.

Thanks!