If I am reading the scan correctly, it appears that NavCoder found a TCU part number 84.11-6 946 011 with a May 2003 date of manufacture. That part number is different from the part you list in your original post (PN 84.10-6 978 533). That might be a problem. Or, it could be that the -533 part is just the remanufactured version of the -011 TCU, and BMW does not change the internal PN designation during the "remanufacturing" process.

Next, the TCU has a fault stored, so that could be part of the issue. However, without knowing the meaning of the fault, it is impossible to guess.

This is a different type of TCU from the US CDMA version that kiwijochen figured out for NavCoder coding. Therefore, this may require totally different coding instructions to read and activate Bluetooth. In other words, Jochen might have to dump memory contents and write an enhancement to NavCoder for this type of module.

Finally, it is possible that this TCU is not capable of Bluetooth. The U.S.-spec CDMA TCU modules did not receive bluetooth until 2004, for the 2005 model year. This module appears to be dated 2003, which precedes the arrival of Bluetooth in other similar modules by two model years. This particular module does not have any date information in the parts catalog, so it is difficult to determine when it was actually used in cars. (The presence of a Bluetooth logo on the part sticker is also meaningless-- BMW had BT logos on the parts stickers long before the modules actually had BT ability.)

I hate to be the bearer of bad news, but it is very possible that the last point above is your problem-- that this module does not have Bluetooth capability.

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MKIV Navigation, 16:9 Display, Bluetooth, TV/Video with Backup Camera, Sirius, and Aux Input