Quote:
Originally Posted by kooolaid
I have the exact same sound and it is definitely not air intake sound as we all know intake sounds beautiful. I first took my car to a several local BMW independent shops. But one thought it was engine knocking and other could not identify. So I ended up dropping it off at Southbay BMW. I just got a call from them and they weren't able to find any issues with the car and telling me it's normal sound...  I just cannot agree with them as it is metal chirping sound almost like something is very loose...anyways, I hope someone can identify this sound. At this point, I'm just glad it's not engine knocking, but would like to know what it is. |
Chill my friend,
Lots of people have this noise. most of them think it is airintake, But some times this noise will gone. One time, I am almost out of gasoline, this noise is gone, and today, I put my Stock Xpipe back, this noise is gone too.(I had ran a MS catless xpipe)