Problem noticed after snow storm

[Arpegius]

I tested it and with the car not on the ICV has a constant buzz. I guess the problem isn't the ICV. What's next on the list?

[nando]

well, that means it's electrically working, but doesn't mean it's not sticking. But since you cleaned it out it's probably ok.

next would be TPS switch. you have a bentley? it says how to test and adjust it.

[Arpegius]

I went to my local BMW shop and talked to a mechanic who seemed to know about this problem. He said it sounds like it could possibly be a failing coolant temp sensor. Does this sound about right?

[Arpegius]

Well I finally fixed the idle problem. It was a bad coolant temp sensor. I replaced it this afternoon drove it for a couple miles and the weird idle is gone. So for anybody that might be dealing with the same thing, check the coolant temp sensor. Cost me around $12. Thanks for everyones help!

[gtdragon980]

hmm my coolant temp hasnt been reading correctly for the whole time ive been driving it, maybe that could just be the cause. ill give it a try and see if everything is good, because driving it like this sucks since shifting isnt smooth when the idle is high