Need Help Diagnosing a loud snap/pop/click sound?

[MarkJM]

Hey guys!!! I have a challenge that I am hoping someone has experienced before... I've posted about this twice and nobody has replied, but I cannot be the only Member that has (or in my case... IS) experienced this challenge???

Recently my 2013 M3 has started making a loud Popping or Snapping sound that appears to be coming from above the drivers head. This sound generally happens within 1 - 5 minutes of starting up for the first time.

For example... this morning, approximately 1 minute into my drive in to work, a loud SNAP occurred above my head... sounded like something metallic dropped on the roof (it clearly didn't). It happened once... then nothing more. Drove 45 minutes into work... nothing. Started it up and drove to lunch... nothing. Started it up and drove home... nothing. Likely, it won't happen again until tomorrow morning, when I start up for the first time???

What makes this even more interesting is this... I have been experiencing this noise (every so often) for probably 2 years. In the beginning, it happened after driving for long perods of time. At first I thought it was coming from my radio... but quickly realized, it was not. The loud Popping/Snapping/Clicking sound was very persistent... lasting for many minutes. Several times, it continued even with the car parked and turned off???

I have spoken with my local dealer and they have tried to investigate... challenge is, the sound is so infrequent... of course it doesn't make it while at the shop! My plan was to bring it in while it was making the noise. Problem is, it only makes it once in the morning! Gone are the long periods of Popping/Snapping/Clicking while driving (which is great...).

I have seen no performance issue and frankly, since it happens only once... and not EVERY day.... I'm not overly concerned... just frustrated that nobody seems to know what the hell is going on!

Perhaps I have a unique situation that only my M3 is experiencing? Guess that makes me lucky!!!!

Side note.... my second vehicle is a 2023 Mercedes SUV... 1 week into ownership and the back door handle fell off in my wifes hand! Dealer told us, after investigating, they found this problem in 1 other car in the world. Fixed it and the next day it fell off again!

Point is... looks like I have two very unique vehicles!!!! Just my luck!!!!
Not the lotto I wanted to win!!!!

[Redd]

I replied in your other thread. Check your amp.