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Discussion Starter · #1 ·
I have a 2007 X3 and this past weekend i was washing my car and noticed something unusual. Right above the exhaust pipe, which is on the drivers side of the vehicle at the end of the vehicle, there is a black tube which is approx. 1/4 inch in diameter if i had to guess. The tube looks dry rotted or disconnected in a trashy fashion. It looks like it attaches to the exhaust but im not certain. I also have noticed a thread about the golf tee mod and have looked in the tail pipe and can see the valve is open when the vehicle is off as well as when its idling in park. This all makes me wonder if the tube is controlling the valve in the tail pipe.

I have no clue what it is and my assumptions are merely guesses. All help will be greatly appreciated.

Thank you.
 
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