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Old 08-31-2015, 10:49 PM
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Onizukachan Onizukachan is offline
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Join Date: Aug 2015
Location: El Paso TX
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I meant it has no xdrive issues, or pano issues, lol. I can see how you could mis-read that, sorry. Coming from e34 tourings with their hyper complex dual panel sunroofs, I am hyper aware of the "use it or lose it" nature of these. Good call on the lithium lube.

After the frustration of seeing numerous conflicting threads regarding 04 models, yes it does, no it doesn't, I tried everything that was indicated. Ours does not transmit BT during the first 60 seconds of turn on (or anytime for that matter). Apparently march -August 2004s were supposed to have it, but it isn't available in the TCU despite having the passkey info. "Supposedly" they were going to release a patch to enable it when the 05s came out, but instead did a complete new TCU for 05, and abandoned the 04 as is.
A simple TCU swap to a later model (if you can find one, lol) will allow us to keep BMW Assist and add BT for hands free calling (Not that bmw assist is worth a damn in this day and age). I even found a handy dandy reference guide which calls out which part numbers do and don't. (Already saved me from buying 2 modules on eBay that said they had BT, but really didn't.)
See attachment:

EDIT: I saw in the BT forum someone stating they were going to or had recoded the TCU to enable BT. Will try that first before tossing it, though the updated module still might be worth swapping to for other features and the variable passcode instead of fixed.


Interesting on your aux placement: The factory instructions for US vehicles call for glovebox mounted aux, and the aux cable isn't actually long enough to reach the rear. I had to extend ours 6 inches (I added 12 actually to be safe) to reach. The only people I saw with it there when Google searching were Euro spec or Euro delivery, so that's what I called it. I think it's the best location, hate having the ashtray open just to charge a phone or plug in a cable.

In any case, enjoyed doing research, learning something new, and glad to contribute something back to the community.
Attached Images
File Type: pdf BMW-TCUandULF-PartNumbers.pdf (61.0 KB, 212 views)

Last edited by Onizukachan; 08-31-2015 at 11:19 PM.
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