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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 12-02-2009, 09:38 AM
serop serop is offline
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X3 Bluetooth Retrofit

Hi Guys, new at this forum. I have a 2006 E83 X3. No NAV. I want to install the bluetooth TCU. I found in the trunk area a Black Female connector and 3 Coax Cables. Are these the connectors required to install the TCU? What are the 3 coax cable for? Where on the CTU do I plug these three Coax Cables? Do they all go to the TCU? I do not want the armrest cradle. Do I need to make any mods to the coax or the cables in the armrest?Would I need anything else to complete this install? Other then the MIC? Do I need a Antenna module? If so where does it go? I cannot seem to find a retrofit guide for a TCU in a 2006 X3.

Thanks in advance.
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  #2  
Old 12-02-2009, 10:35 AM
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legalfee legalfee is offline
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Quote:
Originally Posted by serop View Post
Hi Guys, new at this forum. I have a 2006 E83 X3. No NAV. I want to install the bluetooth TCU. I found in the trunk area a Black Female connector and 3 Coax Cables. Are these the connectors required to install the TCU? What are the 3 coax cable for? Where on the CTU do I plug these three Coax Cables? Do they all go to the TCU? I do not want the armrest cradle. Do I need to make any mods to the coax or the cables in the armrest?Would I need anything else to complete this install? Other then the MIC? Do I need a Antenna module? If so where does it go? I cannot seem to find a retrofit guide for a TCU in a 2006 X3.

Thanks in advance.
In the left rear there should be a 54 pin connector and a purple and cream coax (anntenae) connector. Both these cables plug into the ULF or TCU. As you said you need a mic in the overhead console. If you don't have the eject box then you'll need a pairing button to plug into the connector under the armrest. BMW no longer makes a pairing button but Bimmernav makes a retrofit. Here's a link to the installation instructions:

http://www.bimmernav.com/BMW_X3_Blue...tructions.html
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  #3  
Old 12-02-2009, 10:43 AM
serop serop is offline
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thanks for the info. What is the third coax for? Where does the Bluetooth Antenna go? the link you posted does not have any info for the antenna.
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  #4  
Old 12-02-2009, 10:47 AM
serop serop is offline
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This is the unit I'm looking at buying. It looks like the antenna is fixed on the unit. I understand the 54pin plug goes on one end of the TCU but the 3 coax cable that are in my car, where do they plug into this unit?
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  #5  
Old 12-02-2009, 10:50 AM
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legalfee legalfee is offline
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Originally Posted by serop View Post
thanks for the info. What is the third coax for? Where does the Bluetooth Antenna go? the link you posted does not have any info for the antenna.
The purple and cream coax goes to the bluetooth antennae. I believe it's in the left side c pillar (just behind the rear seats). I believe the extra cables are for BMW assist. The BMW assist module I had before I replaced it with the ULF used all 3 coax cables. Bottom line is if you have the purple and cream coax connector you have a bluetooth antennae.
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  #6  
Old 12-02-2009, 11:02 AM
serop serop is offline
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Sorry If I'm being annoying here, but I still do not understand where all the cables go. The TCU has 4 Coax ports and the antenna module has one. I do not have the Purple/Cream colored coax. I have 3 coax connectors I believe , Black, Purple, and Blue (or maybe one of them was cream). All the retrofit documents I find are for ULF modules and not TCU modules.

There has got to be a PDF of someone that has done this before with a TCU in a X3.....any one???

Again sorry if I'm being a pest here......
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Last edited by serop; 12-02-2009 at 11:17 AM.
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  #7  
Old 12-02-2009, 01:04 PM
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legalfee legalfee is offline
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What you have pictured looks like an Assist module. You may want to try the bluetooth forum as those guys are the TCU specialists. I'm only familiar with the ULF.

http://www.bimmerboard.com/forums/bluetooth/
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  #8  
Old 12-02-2009, 03:58 PM
serop serop is offline
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there is nothing on that forum. Anyone else? I really want to sort this out.

Thanks
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  #9  
Old 12-02-2009, 05:43 PM
pdx3 pdx3 is offline
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Find out the part number of the unit you are buying and enter it into http://www.realoem.com/bmw/select.do . If it comes up as an Assist module as Legalfee suspects (as do I), then you're out of luck. A TCU will not have all those coax connectors, just one, along with a 54-pin connector that it clearly not a coax connector.

The first photo you posted is of three items, the likely Assist module (big silver box), the microphone (left) and the BT antenna (right). Neither of those two items are actually attached to the unit.

The other coax cables in the rear are for prewired Sirius and (possibly) navigation. A post here described that the sharkfin antenna is actually a combination of GPS+satellite+radio antenna and that the wires are there to simplify upgrades. I suspect BMW felt it was cheaper to simply install one antenna group and all the wires rather than have each car customized for that.

I also suspect your car is prewired for phone so all you will need is a TCU and maybe the microphone.

Let's get you a TCU and then we can talk about installing it. If you see an installed TCU (head to a used car lot that has an X3, perhaps) and you will see that installation is a few screws and connecting the cables.

-pd.
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  #10  
Old 12-03-2009, 07:38 AM
serop serop is offline
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Thanks for the help guys, I appreciate it. Now, I'm on the hunt for a Bluetooth TCU and a Mic.

If you know of any place that has them for a good price please let me know.

Thanks again for the help.

Oh one more question would I absolutely require the pairing button?
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  #11  
Old 12-03-2009, 08:12 AM
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legalfee legalfee is offline
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Ebay for ULF or TCU. Bimmernav for mic and pairing button. The button isn't but like $15. If you don't want to spend the $15 try to pair without one and buy it later if you can't.

Last edited by legalfee; 12-03-2009 at 08:14 AM.
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  #12  
Old 12-04-2009, 07:08 AM
pdx3 pdx3 is offline
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Serop-

A very similar thread is over on Bimmerboard (with Legalfee's good input as well): http://www.bimmerboard.com/forums/posts/730026

If you search that board there are a number of examples of how to pair without a pairing button on a ULF; the TCU should have a similar combination of pins to connect (most likely the same since the TCU and ULF use the same harness).

One other note: since I installed my eject box (which has a pairing button built in), I've never been able to pair a phone using the eject box button -- in fact, the button seems inoperable in total. I don't know whether I have a bad eject box, bad connection, or if it's working as designed. In any case, it hasn't affected my use of BT, so I'm not going to worry about fixing it.

-pd.
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  #13  
Old 04-03-2016, 06:01 PM
new2bimworld new2bimworld is offline
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Hello! I just bought my first (second hand) bmw and have virtually no experience working on cars and not deep pockets at the moment. My 2007 X3 (bought yesterday!) seems to be pre-wired for bluetooth. There is a talking face button on the steeringwheel and in the real left panel, I did locate the 54 pin cable and some others- all well packaged in velcro sleeves. I have read the forums and have learned that I need a TCU. But there are a lot out there. I went to realoem.com to find out what TCU part number I'd need for my vehicle, but am having difficulty finding exactly the right part number on eBay and such. My question is: how adaptable are these TCUs? And where can i find out the definitive answer as to whether a particular TCU will be compatible with my car?

The next question is actually several. Can someone explain to me the "pairing button". What is it and where does it install? Once I hook up the TCU, can I not pair with the talking face button on the steering wheel? Will my "pre-wired" car be outfitted with a microphone? And between the pairing button, and "ejecting panel" for arm rest.... which of these are necessary for bluetooth? (I am not interest in the Emergency Assist feature.)

I really appreciate all I've learned on this forum. Thanks for sharing your expertise.
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  #14  
Old 04-04-2016, 07:14 AM
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legalfee legalfee is offline
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Quote:
Originally Posted by new2bimworld View Post
Hello! I just bought my first (second hand) bmw and have virtually no experience working on cars and not deep pockets at the moment. My 2007 X3 (bought yesterday!) seems to be pre-wired for bluetooth. There is a talking face button on the steeringwheel and in the real left panel, I did locate the 54 pin cable and some others- all well packaged in velcro sleeves. I have read the forums and have learned that I need a TCU. But there are a lot out there. I went to realoem.com to find out what TCU part number I'd need for my vehicle, but am having difficulty finding exactly the right part number on eBay and such. My question is: how adaptable are these TCUs? And where can i find out the definitive answer as to whether a particular TCU will be compatible with my car?

The next question is actually several. Can someone explain to me the "pairing button". What is it and where does it install? Once I hook up the TCU, can I not pair with the talking face button on the steering wheel? Will my "pre-wired" car be outfitted with a microphone? And between the pairing button, and "ejecting panel" for arm rest.... which of these are necessary for bluetooth? (I am not interest in the Emergency Assist feature.)

I really appreciate all I've learned on this forum. Thanks for sharing your expertise.
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The pairing button is for ULF the TCU does not need a pairing button as it automatically goes into pairing mode on power up. The pairing button is either part of the armrest cradle or Bimmernav makes a retrofit button that plugs into the connector in the armrest. You can see the connector on this Web page if you scroll down:
http://www.bimmernav.com/BMW_X3_Blue...tructions.html
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  #15  
Old 04-06-2016, 10:39 AM
crak crak is offline
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Quote:
Originally Posted by new2bimworld View Post
Hello! I just bought my first (second hand) bmw and have virtually no experience working on cars and not deep pockets at the moment. My 2007 X3 (bought yesterday!) seems to be pre-wired for bluetooth. There is a talking face button on the steeringwheel and in the real left panel, I did locate the 54 pin cable and some others- all well packaged in velcro sleeves. I have read the forums and have learned that I need a TCU. But there are a lot out there. I went to realoem.com to find out what TCU part number I'd need for my vehicle, but am having difficulty finding exactly the right part number on eBay and such. My question is: how adaptable are these TCUs? And where can i find out the definitive answer as to whether a particular TCU will be compatible with my car?

The next question is actually several. Can someone explain to me the "pairing button". What is it and where does it install? Once I hook up the TCU, can I not pair with the talking face button on the steering wheel? Will my "pre-wired" car be outfitted with a microphone? And between the pairing button, and "ejecting panel" for arm rest.... which of these are necessary for bluetooth? (I am not interest in the Emergency Assist feature.)

I really appreciate all I've learned on this forum. Thanks for sharing your expertise.
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This is what I did for my 07 X3, I bought in Ebay the mic part #6938762,
http://www.ebay.com/itm/121873007444...%3AMEBIDX%3AIT

and the TCU 84.10.9181864,
http://www.ebay.com/itm/262265803315...%3AMEBIDX%3AIT.

My car already had the antenna so I didn't need that.
Plug and play, worked like a charm. No need of a pairing button with the TCU. Just get the PK number on top of the TCU and that's the pin code to connect with the phone. After that, as soon as you turn on the car the phone will connect automatically, providing you have the bluetooth on in your phone.
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