This looks like a promising modification. The chime is a nuisance and there should be a way to disable it via on-board adjustments. On two previous vehicles (Ford products) I had, you could locate the part that was bleeping, simply unplug it and consign it to the trash.
Does this improvement work on 2008 X3's? Will this modification produce any check lights?
2008 BMW X3
2006 Porsche 997 2S Cabrio