A couple of weeks ago I purchased my second M5. A 2013 with the Bang & Olufsen sound system. I was very excited for this sound system, but so far, I seem to be having an issue. At least I think I am, but I feel like most people will not agree with me that there is even an issue. In any case, I figured I'd reach out here on the boards and see if anyone else has experienced what's happening with my sound system.
I've noticed that every minute or so, the sound quality (or to be more specific, probably the fidelity), diminishes for just a few seconds, then goes back to normal. It sounds as if out of nowhere, the clarity and treble of the sound is lowered, causing a VERY slightly muffled sound, it lasts a few seconds (maybe 5 to 10 seconds each time), then goes back to normal, which sounds just fine. Again, this seems to happen in every song, about every minute or so. It's extremely annoying and I have no idea what is going on. It's probably subtle enough, also, that 90% of people would never even notice an issue. Also, it's difficult to tell if this is happening on Radio or Satellite Radio, due to the low quality of those sounds. But it is definitely
happening with MP3's or CD's.
Has anyone else experienced this? It's the weirdest thing! It really takes the fun out of listening to this sound system. Is there a bulletin out in the BMW service departments about this? Is something in the car damaged? Is this normal and has something to do with the DSP that is built into the B&O that is non-adjustable by the user? I plan on taking the car to the dealer soon, and I'm going to bring this to their attention. However, I doubt they'll have any idea what I'm talking about.