OK this is what i have, I really got confused when i saw the antenna (part number 8540 8387422) ontop of my nav drive, i thought it was bluetooth but not sure now. Also, should there be two antennas? I could see two antenna cable plugged into the bottom of the siemens unit.

Now how do i find the correct one in WDS? And more importantly, if i buy a TCU, how will i know which wires go to which pins if i cant check the pin configuration of the car the TCU came from?

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The antenna is the WDCT antenna (worldwide Dect)

[QUOTE=neiloakley;702894]Now how do i find the correct one in WDS?

It is printed in black and white on your phone module what it is. And looking in th WDS, there are only TWO matching options - and the only differences are with or without voice recognition.

So there you go. The phone type is non-ambiguous.

Again, look at the WDS. You will see there are only 2 x TCU entries. And the only difference is with or without voice recognition.

So once more the solution is very clear.

Refer to the WDS, and compare the wiring differences between TCU and your Siemens BIT-II phone.

Then simply change the BIT-II wiring to the TCU wiring.
The WDS tells the whole story.

Can you send me a screenshot of the TCU you are seeing in WDS? I dont even have a TCU yet so i'm unsure how you have found the correct one.


I do have voice reconitiong at the moment (I will use navcoder to disable VR on the TCU to avoid conflict)

Really simple.

When the list of phones is on the screen, you go through them until you see the one that says "TCU"

Honestly, it's as easy as looking up words in a dictionary!

You don't need a screenshot for that....

argh i think it's just clicked. The Wiring is not specific to the unit, but the car.

SO all TCU units need the pins in the same configuration, and it need to swap the wires in my car about to match the configuration required by the TCU

So my car currently has
Telephone (BM On-Board monitor with Fixed mounting, Siemens (cordless handset) with SES Language-input system up to 2002_3)


And I want to fit a TCU unit so i need to swap the wiring to match the following:
Telematcis control unit (TCU-Everest) (SES Language-input system with TCU Telematic Control Unit without USA_LHD)

Which TCU i get doesn't matter, as long as i have rewired my connect for a TCU moduel correct?

Well, thats the same isn't it?

The only difference in TCUs is whether they are ECE or US models.
ECE = Assist over GSM, and optional Bluetooth cordless handset in the car.
US = Assist over CDMA, and no optional Bluetooth cordless handset in the car.
But the wiring (power, ground, ibus, microphone, audio) is identical.

As I said earlier: "simply change the BIT-II wiring to the TCU wiring."

Of course, always refer to the right wiring diagram.
Do not read USA diagrams if you have a Non-US market car.

The WDS shows all, very clearly.

No - a TCU module in a x5 could have the power on pin 1 and ground on pin 2

a tcu module on an x3 could have ground on pin 1 and power on pin 2

If you are saying the wiring for TCU modules are identical then i understand what i need to do, and as long as i look at ECE diagram in WDS and rewire to match that, i can get any ECE TCU module and plug it straight in.

I'm now looking for one of these (sourced form here http://www.bimmerboard.com/members/p...artNumbers.pdf)

European GSM based TCUs - won't work in US

TELEMATICS CONTROL UNIT GSM Jan-05 84116946991
TELEMATICS CONTROL UNIT GSM Mar-05 84106965055
TELEMATICS CONTROL UNIT GSM Sep-05 84106964113
TELEMATICS CONTROL UNIT GSM Jul-06 84106963758
TELEMATICS CONTROL UNIT GSM Nov-06 84109129850
TELEMATICS CONTROL UNIT GSM Mar-07 84109127894
TELEMATICS CONTROL UNIT GSM 84116946011
TELEMATICS CONTROL UNIT RFMD GSM 84106978533
TELEMATICS CONTROL UNIT GSM Jul-06 84106963758

TELEMATICS CONTROL UNIT GSM Nov-06 84109129850

WDS shows very clearly:

X5 TCU = power term30 pin 17 & pin 18, power termR pin 35, ground pin 36 & 54

X3 TCU = power term30 pin 17 & pin 18, power termR pin 35, ground pin 36 & 54

You may care to note that the WDS contains all the info you need.....

Hi

I am hoping to add bluetooth to an E46 that has not got it, nor has the cabling for it, by making up some cabling for power, ibus and audio via a mute box. I have an aftermarket Alpine media station head unit fitted.

I am in possesion of a 2005 TCU +SES module. It has a 54 pin connector. Does anyone know the BMW part number of the barebones connector so I can buy one and make up a loom? Else is a cheap loom with the 54pin connector available? I saw mention of a 25pin to 54pin adaptor, is there a BMW part number for it?

Also is the audio signal on pins 37/38 the caller's voice, and is it an amplified signal or line-level?