Tore apart the engine bay to get a new thermostat housing installed. I thought I got everything back together properly, but I notice there is a plastic hose that just sits in open space and I don't see anywhere nearby that it would attach to.

It's a hard plastic so there is only so much movement that it has and there is no hook-up to anything nearby that I can see.

Here's a pic:




I'm afraid to start the car until I know what it is.

 

And I notice one connection that has only one wire going to it. There is a green stub of wire covering coming out as if a wire got cut. Please, can anyone check their car and tell me how yours looks?

 

On my 2011 MCS manual, there is no plastic line there. However, on my wife's 2013 Justa Auto, that plastic line is there, and has nothing attached to the end. Looks to be a transmission vent. The electrical connector I cannot find on my car or my wife's. Must be an N14 thing. Hopefully someone with an N14 auto will chime in.

 

He is correct it's the vent for the trans not hooked to anything

 

Our RealOEM illustrated parts list calls it an oil pressure switch (item 11 on this link --- http://www.realoem.com/bmw/enUS/show...diagId=11_3913). And yes, there's only one wire --- the green stub is to occupy the space an electrical pin would go, if it were a 2-wire circuit. I asked a service tech the same question when I first tore my engine apart --- thought for sure I broke something. All is good!

I'll concur with renchjeep about the plastic hose. Maybe use your VIN to look it up on RealOEM?

 

Thanks, guys--much appreciated!