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-   -   How to Retrofit a Bluetooth TCU to your car (http://www.bimmerfest.com/forums/showthread.php?t=600318)

AceFX 02-11-2012 06:41 PM

How to Retrofit a Bluetooth TCU to your car
 
cleaning topic & only leaving required info

JimmyW 02-11-2012 07:08 PM

Nice work! However, I wonder what the benefits of this system are versus CPT8000 or CPT9000?

crombo97 02-11-2012 07:12 PM

Hey Ace this is great work.
I am on the hunt now for a TCU :)
Do you have a PN for the update TCU??

PAPER 02-11-2012 07:13 PM

:eek:

PAPER 02-12-2012 03:45 AM

Quote:

Originally Posted by AceFX (Post 6626299)
:drink:

I sent the file , you should have mail :D
:beerchug:

AceFX 02-12-2012 03:59 AM

Got it....many thanks :drink:

AceFX 02-13-2012 04:05 PM

Hey PAPER, does your car have rear telephone?
Have you looked at the connectors that are in your TCU at the moment.
Do you have a 26 pin and a 12 pin? If so, they need to be dismantled and the wires refitted to the 54 pin connector.
The MOST fibre optics separate away from the 12 pin connector and connect solo into the new TCU.
They slide out easy with the use of a small jewellers screw driver.
Does you car have the phone in the front drawer?

I can supply you my wiring changes that I did to get my Bluetooth TCU in and working, but I just want to make sure you have the same as me. I can work out the wiring diagram for you if your car is a bit different.

The main thing to pay attention to is the transposition of the wiring from the old connectors to the new 54 pin connector so the same features and functions are maintained.

The pins DO NOT go back in the corresponding numbers.....for example pin 1 may be pin 22 in the new connector and so forth. This is all easy to work out, I just need to clarify what TCU you have at the moment and the TCU that you want to put in so I can tell you the correct pin assignments.
Ace :drive:

PAPER 02-13-2012 05:02 PM

Quote:

Originally Posted by AceFX (Post 6629888)
Hey PAPER, does your car have rear telephone?
Have you looked at the connectors that are in your TCU at the moment.
Do you have a 26 pin and a 12 pin? If so, they need to be dismantled and the wires refitted to the 54 pin connector.
The MOST fibre optics separate away from the 12 pin connector and connect solo into the new TCU.
They slide out easy with the use of a small jewellers screw driver.
Does you car have the phone in the front drawer?

I casupply you my wiring changes that I did to get my Bluetooth TCU in and working, but I just want to make sure you have the same as me. I can work out the wiring diagram for you if your car is a bit different.

The main thing to pay attention to is the transposition of the wiring from the old connectors to the new 54 pin connector so the same features and functions are maintained.

The pins DO NOT go back in the corresponding numbers.....for example pin 1 may be pin 22 in the new connector and so forth. This is all easy to work out, I just need to clarify what TCU you have at the moment and the TCU that you want to put in so I can tell you the correct pin assignments.
Ace :drive:


1. = No I don't have a phone in the rear console
2. = Yes I have a 26 pin and a 12 pin TCU in the car .
3. = No not in the front drawer , My phone is in the front center console .
4. = I have the 54 pin TCU to put in .

AceFX 02-13-2012 06:46 PM

There is a small adapter you need to add to the MOST connector, do you have that as well? :drive:

AceFX 02-13-2012 06:50 PM

Ok, yours is easy. Will do pin assignments for you later today. I am at Uni at the moment.......... Can you believe I have gone back to Uni to do a Double Law degree........ I'm over the IT industry. :drive:

PAPER 02-13-2012 06:57 PM

Do you mean the small adapter for the green fiber optic line ?
If so , yes I have that also .

Sent from my GT-I9100 using Bimmer App

PAPER 02-13-2012 07:03 PM

Wow that's a big change from I.T. Work

Sent from my GT-I9100 using Bimmer App

PAPER 02-14-2012 07:10 AM

Yes my car does have them .

Sent from my GT-I9100 using Bimmer App

PAPER 02-14-2012 07:12 AM

:eek:

Rostman 02-15-2012 10:40 AM

:drive:

stuartjohn24 02-15-2012 10:48 AM

Hi AceFX,

Really like the amount of work you have done and been kind enough to document it all for the rest of us!

Im looking to upgrade my MMI in the future when ive got on top of all the other repairs in the mean time!

I have been wondering about retrofitting the bluetooth to my 2002 UK spec 745. Luckily you seem to have a quite a bit of experience in doing this.

I think i have a similar setup to yours originally, I have the siemens telephone in the top drawer with the sim card slot etc... i do not have the rear phone.

I also have the siemens unit in the boot with the two connectors.

Do i need to upgrade the MMI first? or can I upgrade the TCU with the older pre-facelift MMI?

Also looking at the wiring the UK spec cars are slightly different, they dont seem to interface with the SIM like it shows on the US spec diagrams.

As long as I find the right diagram for my car it should be a simple case of moving the wires to the correct positions on the new connector?

Many thanks!

politby 02-15-2012 10:54 AM

:confused:

Rostman 02-15-2012 11:00 AM

:)

AceFX 02-16-2012 05:36 AM

:drive:

AceFX 02-16-2012 05:46 AM

:drive:

AceFX 02-16-2012 05:59 AM

:drive:

AceFX 02-16-2012 06:01 AM

:drive:

Rostman 02-16-2012 08:31 AM

:drive:

Rostman 02-16-2012 08:37 AM

:confused:

stuartjohn24 02-16-2012 09:41 AM

Quote:

Originally Posted by AceFX (Post 6635693)
Hi StuartJohn24,

Yes you can achieve Full Bluetooth functionality in your car but you need to change the TCU.
My car is a march 2003, DE78215, and I have successfully replaced the original TCU, which would be the same as your one now, with the facelift Bluetooth version TCU.
I did not try Bluetooth with my pre-facelift (original MMI). One of the first things I replaced in my car was the MMI with the facelift one.....more colours, better graphics and faster processing.
So, if your inclined, it can all be done.
If you need help with the diagrams just let me know and I will help as much as I can.
The ringtone is much better in the car too with the Bluetooth set up by the way......

Ace :drive:

Hi Ace,

Thanks very much for the reply, thats great news!

I will take the panel off and see which pins in the connector are occupied so i know which diagram i should be looking at!

I understand I will need a bluetooth antenna fitted under the arm rest that is wired directly to the new TCU, is that correct? does the TCU need any coding itself? or is it pretty much plug and play? (with the exception of the MMI coding of course).

One last thing! im sure you have covered this before so I apologise in advance!, exactly what software and interface are you using to code the MMI? I may have looked it up before and it was pretty expensive, can the same coding be done with NCS expert?

Thanks again!


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