It's not the 552, it's an older version. I don't remember the number though, and I would have to take things apart to get to it, since I mounted it with the factory ULF module bracket.

I remember what SG got, he has the -387 BT module.

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Thanks Doc, good memory

What exactly are the issues you are having? What works and what doesn't work? What year is yours? Where did you get the harness adapter kit? Martin or AA?

I bought my ULF from Circle BMW. It is the 552 module (1st generation). I also have Mot V710 with the original software. Currently everything works via the BMW BT module except phonebook transfer. The newer software for the V710 didn't work well with the 552 module. If constantly connected/disconnected the phone. This is why I am wondering if the E815 works with the 552 ULF.

I have 2003 4.4 11/02 production.

dmoney98

The V710's usually don't transfer the phonebook. I have not heard of any issues with the E815.

Depends on the carrier, and what "disabilities" they have put in the phones. I have a v710, through Alltel (NOT Verizon), and the phonebook transfers just fine.

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Some of the newer generation BMW BT ULF modules do allow the V710 to transfer the phonebook, if the V710 has the newer software.

dmoney98