Bluetooth not pairing - late 2004 E53
Hi all,
I am unable to pair any new phones with the bluetooth system. I had an old phone that was paired with it and that still connected but nothing new. When I run throught the method to pair it does nothing at all, almost like the butting isnt working. I have been searching the forums and it seems some people are leaving the module unplugged for a while, pulling he fuse, replacing the module, someone had the wires going into the module repaired. I have tried pulling the fuse and unpluging the unit with no joy. Does anyone know another way to get into the pairing mode? Is anyone aware of the 2 pins that go from the pairing button to the module? Maybe i can just short them out acting like a button? If it still wont go into pairing mode after shorting it out it would have to be the module. Does anyone know a way you can reset the module? Im thinking there might be a phone "locked" in it. Is there a way of erasing everything in it and starting fresh? I have a K+DCAN USB interface so could reset it that way (if you can get to the bluetooth module that way? Cheers, Dale |
Do you have a ULF or a TCU bluetooth? They are two different bluetooth modules whihc require different approaches. You may need to go and look at it; it's in the boot behind the carpet on top the GPS rack.
TCU http://www.xoutpost.com/attachments/...ture060-43.jpg ULF http://www.dg-onlinehandel.de/Media/Shop/ulfneu.jpg |
It is a ULF unit.
In the past i have sucessfully used this method to pair a phone: 1. Put the key into position 0 2. Hold the pairing button (in the centre console) for 10 seconds 3. Turn the key to position 1 4. Keep holding the pairing button 5. Message "phone pairing" or something like that came up on the dashboard and I was able to pair the phone. Now when I do this nothing happens at all. I have tried it tens of times with suttle changes but still nothing. Cheers |
Keep holding the button for 10s to clear all paired phones, you should get a confirmation message.
Remember you must use the button on the phone console, the one on the steering wheel will not do. |
Keep holding it for 10seconds when?
I think i have held it for 10seconds in ever position now but i'll give it another try. |
I think it's 3s after IGN on, then a further 10s to delete pairings.
http://www.e38.org/ULFOwnerManual.pdf Says Quote:
Quote:
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Yep I have tried this procedure but no joy.
I cant get into the pairing mode to remove the other connected devices. As i can see it, there is 3 possible things wrong: 1. the ULF is faulty and needs to be replaced. 2. the ULF is faulty and the software needs to be rest on it somehow. 3. the button/wiring to the ULF is faulty. I would like to test option 3 by shorting out pairing button pins at the times needed to pair the device. I have been looking for a pinout of the ULF but at this stage had little success. If this still fails I am trying to find out if the software can be reset. I have a K+DCAN USB cable and software to reset this if it is possible this way. If this still doesnt work and nothing else is working i will have to buy a new/second hand module. |
The pairing button shorts to ground one of the wires in the eject box. I think it's a green wire on pin 1 or 2. You could Google for the pairing button DIYs to see which are the active pins.
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Hi!! I have the same problem! Did you fix it!!
Thaks |
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