Just took redelivery of my 2006 550i. Having a great time getting reacquainted with it and getting to know it intimately. Love the car, except for one thing which surely must be a software bug. Searched a while around this forum - but didn't find anything apropos.
Basic problem: The audio system will play (make forward progress through the audio material on the CD) even though the sound is "off" (turned music off via on/off/volume button on the dash - speaker icon has a line drawn through it on the iDrive display). Happens with both normal Audio CDs and with MP3 CDs.
There seems to be several ways this happens - the most annoying is that I can return to the car after, say, 30 minutes, and find that it's advanced through the CD by about 25 minutes.
Siimplest way to reproduce the problem.
- Start the car.
- Insert an audio CD
- Listen to the 1st 20 seconds of track 1, then turn off the audio via the button on the dash.
- Using iDrive, navigate to the CD screen in the Entertainment menu. You will find that the CD is on track 1, and at 0:20. And is stopped. Good. No problem yet.
- Push the CD right-arrow button on the dash.
- You will see in the iDrive screen that the CD advances to track 2, and commences playing (the timer advances). EVEN THOUGH THE SOUND IS STILL OFF (Speaker icon has slash through it - no sound is emanating from the speakers).
- If you turn the audio on (via the dash button), the CD plays at the point it is indicating on the iDrive screen.
- If you turn the audio off (via the dash button), the CD stops - Cool.
- But you can make it start "playing silently" again if you push the left or right CD arrow buttons on the dash.
It exhibits similar behavior when you return from the car after a long enough period that it has "gone to sleep". If you start the car, the CD will start advancing, even though the sound is off.
Very inconsistent. Clearly this must be a bug. I was wondering if others had experienced the problem, and if anyone knows the resolution. I'm guessing I need a progman update. My car was produced in Dec '05. Don't know what version of progman it's running.
Ring any bells with anybody?
Oh - in case this matters, options on the car are: 550i 6MT, Sport Pkg, Comfort Access, Nav, Active Steering, SunShade, Foldown Seats, Cold Weather Pkg, Anth Headliner, Gas Guzzler Tax (

). No L7, no CD Changer.