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      07-27-2013, 01:44 PM   #1
phobic
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Drives: 2011 135i coupe
Join Date: Apr 2013
Location: Woburn, MA

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high pitched tone when driving?

So since this is the electrical area I figured Id post this here.

When Im driving I can hear a super high pitched tone. it changes every now and again and if I have my radio on or windows down I can hear it less, but if I put my windows up and turn the radio off I can hear it easily. If I stop, the noise stops too. Its definitely an electrical issue somewhere... No idea where though.

I just recently had my headlights customized and put a new exhaust on that does not connect the vacuum flap thing to it. Could those have anything to do with it?

This wasn't happening before I got those done, so Im not sure what to check. If I cant figure it out Im going to bring it back to the body shop that was working on it and tell them to fix it, but Id really rather figure it out so I dont have to go without my car for another week or more.

any help/ideas would be amazing.
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