The generaly consensus is that BMW had a late production issue with the 2004 model year TCU modules. But, the people printing the labels did not get the message. The result is that 2004 TCU modules either have BT internally disabled, or they never had it in the first place, yet the part number stickers all have the BT logo and information.

__________________
SOLD
2000 E38 750iL Highline Edition, Upgraded with the lastest 2006 X5 Electronics
MKIV Navigation, 16:9 Display, Bluetooth, TV/Video with Backup Camera, Sirius, and Aux Input