Originally Posted by PencilGeek
Today I picked up the 09 Telematics unit and plugged it in my 02/08 build MY08 M3. I already knew it wouldn't work without recoding. But here's something I noticed. The CDMA telematics unit has coding index 08, and the GSM telematics unit has coding index 16.
The 08 index may be suspect because I'm too lazy to go downstairs and grab the computer with the diagnostics software on it. But I distinctly remember the GSM unit has index 16 -- and it does not conflict with coding indices from any other unit in the car.
Is this GSM TCU used or remanufactured? What diagnostic software is that?