[E91 Hoarder]

Looking for help with coding for bluetooth retrofit. Appreciate any advice.

Car: 2006 e90 325i, professional radio (SA663), with preparation (SA640).

Retrofitting phone/bluetooth. The retrofit kit came with microphone, antenna, TCU1.5 and MULF2 modules. Followed the retrofit guide. Only had wires in the trunk to connect to the TCU module, the MULF2 remained not connected (what is it for anyway?).

Using Protool for coding. When I add $639 to the VO, phone options appear in the menu, however, they are inactive. see video in the below post.

Am I missing something?

[E91 Hoarder]

[ptpending]

remove/deactivate 640 option when you add 639 option

[ctuna]

IN 2006 the Mulf 2 was not supported (didn't exist)and they where still on the 1.0 version of the the TCU. (that is why there isn't a second plug)
Don't know if ProTool has away around programing this but people going through standard tools had to change the production date of the car while installing the new software.
(not supported in the 2006 version and the production date prevented the installation)Also there is an aftermarket harness made to accommodate the mulf 2 hi.
The truth is you don't need the TCU as the Mulf2 high itself will do everything worth doing with the Mulf 2 hi . (bluetooth and USB)

http://www.e90post.com/forums/showthread.php?t=1181654

I suggest you google TCU to mulf2 hi on the open internet

https://www.bimmerretrofit.com/store...&search=combox

I would talk to bimmergeeks about there ability to get around the
does not exist in this year of production problem with installing the
software.

Probably would have been easier to retrofit a combox there is more support
for that now. But there are conversion thread for Mulf 2 if you look hard enough
here.
Also if there is a TCU and a Mulf each requires a Fiber Optic connection that needs
to be added to the Most Bus.

https://www.bimmerretrofit.com/store...&search=combox

If you where just looking to add usb, bluetooth streaming, bluetooth phone and easier way to go would be the mr12volt adapters such as.
They have the simple version for the Pro Radio and now one for idrive that adds android and does not use the crappy aux input for audio also adds carplay and android audio.

https://www.e90post.com/forums/showthread.php?t=1499808

[andy_06xi]

"If you where just looking to add usb, bluetooth streaming, bluetooth phone and easier way to go would be the mr12volt adapters"

Or install an Eonon 9465 Android HU. I originally upgraded my 2006 to TCU based bluetooth -- but I took all that out when I added the Eonon unit. Besides bluetooth phone you get:

1) ADP music from your phone
2) GPS based navigation
3) Backup camera
4) Ability to add any Android app via downloading
5) Carplay and Android Auto (wired)

This was the best mod that I've made to the car.

[sam9116]

Retrofitting phone/bluetooth. The retrofit kit came with microphone, antenna, TCU1.5 and MULF2 modules. Followed the retrofit guide. Only had wires in the trunk to connect to the TCU module, the MULF2 remained not connected (what is it for anyway?).

TCU by itself handles BMW Assist (which BMW no longer supports in North America due to the module relying on 2G cell towers) and Bluetooth Calling
Mulf 2 HI SVS by itself handles USB Playback, Bluetooth Calling, and Voice Commands (the little voice button under the phone button on your steering wheel)

When TCU and MULF2 is hooked up together, TCU handles BMW Assist and Bluetooth calling, and MULF2 handles USB Playback and voice commands

Your car is 2006, which does not support either modules you posted in your pictures because they have a build date of 2008

Your best shot is try and acquire a TCU module with a build date of 2006, that is what your car is pre wired for

Apart from plugging in the module itself to the wiring, you will also have to establish a MOST loop connection, I have a video explaining the process here:
https://youtu.be/K3g5sqVK4MU

You will also have to code your radio to add the telephone option, other wise it will not be usable

If you want to discuss this in detail, you can catch me on Facebook messenger here
I have done this retrofit for my own car, and for another guy who had a 2006 e90
https://m.me/mindlesssam

[ctuna]

Hardly worth installing a TCU for bluetooth phone only .
You can retrofit a combox or mulf 2 high with some programming tricks
though I don't know if it's really worth it.
Mr12volt is the best add on I know of as it uses the Most Bus and not the
Aux like most of the Chinese Head Units or Add on's .
The first version of there unit was essentially a Denison 500 clone.

[sam9116]

Originally Posted by ctuna

Hardly worth installing a TCU for bluetooth phone only .
You can retrofit a combox or mulf 2 high with some programming tricks
though I don't know if it's really worth it.
Mr12volt is the best add on I know of as it uses the Most Bus and not the
Aux like most of the Chinese Head Units or Add on's .
The first version of there unit was essentially a Denison 500 clone.

OP's car does not have the wires for a combox. In fact I don't think any E90 came prewired for a combox, it's an upgrade for if your car already came with both MULF2 and TCU. you can't program anything unless your hardware is properly connected

[ctuna]

The retrofit to a Mulf 2 Hi has been done before on a 2006 with the
single cable . You have to loose the TCU and modify the connector
for the TCU.

http://www.**************/showthread...ighlight=mulf2

where * = b m w coding

there are some threads on it here somewhere to as I recall there is some modification
to the connector . If you can do a mulf2 I would assume you could do a combox.

[E91 Hoarder]

Thank you so much to everyone who responded! I am processing information.