Hope you guys can help me, I have been hunting around for hours trying to find a definite answer! I have an E46 2003 330d with sat nav, tv, cd changer, harmon Kardon and bluetooth. I have an N97 mini which refuses totally to pair with the cars bluetooth. It connects and then immediatley disconnects.

I understand that I will have an older generation ULF module which is present in the boot area above the CD changer. This is probably why my phone won't pair with it due to the age differences in the technology. I have done a bit of research and found out that Telephone TCU's are a cheaper alternaive to replacing the costly latest gen ULF.

If I remove my ULF and replace it with the latest TCU is it a simply plug and play swap over?

I have already removed the phone eject box from the console and replaced it with cup holders.

Thanks in advance.

Paul.