I've read else where that a guy with an M5 has this phone working prefectly with the Bluetooth.

Surely because it doesn't work on yours is not a conclusive test as you may not have the latest ULF ?

There are many different ULF versions in cars and these all have different firmware therefore will surely have different support for different phones ?

I am just retro fitting at the mo to use my 8800 with it and I've bought the very latest one so maybe that will have more luck ?

I'll report back but like I said, a guy with an M5 in the UK ( I think he retro fitted ) hs this phone working perfectly.

X5 Sport, do you know what number your ULF is ?

Si