Triangle, Bluetooth drops calls e92 m3 08'

matte · 09-02-2016, 06:27 PM

e92 M3 2008
Happened with Samsung s5, s6 edge, and now s7 edge. More frequently over time.

Have had this issue over last two years, since I got the car.

It's not an idrive, and has the professional audio system.

Basically you can be on a call and all of a sudden bluetooth drops it seems, and a triangle appears in the place of the phone symbol. Without power cycling the car, you can't reconnect. Happens completely randomly.

It's an 08, so I can't seem to download a update from the bmw website.

Oddly, it will let my bluetooth ad2p adapter stream music to the ipod aux in, but phone won't reconnect. So seems specific to the bluetooth/phone function. Can't re-pair either.

Anyone have any suggestions. I don't want to replace the same old crappy stereo, and I also don't want to put 2k into a pioneer android auto deck atm.

6ixSpd · 09-03-2016, 12:33 AM

Not sure on what the exact cause is, but worst case scenario it sounds like your TCU is on its way out. Not expensive to replace - maybe a couple hundred bucks or so for a used one off eBay and you can swap it in yourself in 20 mins.

Edit: come to think of it, I believe I have one laying around after my 335i's Combox retrofit.

matte · 09-15-2016, 09:35 PM

Just doing a bit of reading, perhaps that is the case, sorry for late reply, didn't get notification of a reply.

Just looking a bit, if I don't have nav, is there any reason to upgrade the TCU to combox or am I totally off base here. Not sure what it is, but i see lots of people upgrading it...

09-02-2016, 06:27 PM	#1
matte New Member 3 Rep 27 Posts Drives: 2008 M3 Coupe Join Date: May 2014 Location: Canada iTrader: (0)	Triangle, Bluetooth drops calls e92 m3 08' e92 M3 2008 Happened with Samsung s5, s6 edge, and now s7 edge. More frequently over time. Have had this issue over last two years, since I got the car. It's not an idrive, and has the professional audio system. Basically you can be on a call and all of a sudden bluetooth drops it seems, and a triangle appears in the place of the phone symbol. Without power cycling the car, you can't reconnect. Happens completely randomly. It's an 08, so I can't seem to download a update from the bmw website. Oddly, it will let my bluetooth ad2p adapter stream music to the ipod aux in, but phone won't reconnect. So seems specific to the bluetooth/phone function. Can't re-pair either. Anyone have any suggestions. I don't want to replace the same old crappy stereo, and I also don't want to put 2k into a pioneer android auto deck atm.
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09-03-2016, 12:33 AM	#2
6ixSpd Save the manuals! 6020 Rep 6,751 Posts Drives: '16 M3, '23 718 Spyder Join Date: Feb 2016 Location: 416 iTrader: (4)	Not sure on what the exact cause is, but worst case scenario it sounds like your TCU is on its way out. Not expensive to replace - maybe a couple hundred bucks or so for a used one off eBay and you can swap it in yourself in 20 mins. Edit: come to think of it, I believe I have one laying around after my 335i's Combox retrofit. __________________ '16 M3 \| '23 718 Spyder Past: E92 M3, F87 M2, E39 M5, etc
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09-15-2016, 09:35 PM	#3
matte New Member 3 Rep 27 Posts Drives: 2008 M3 Coupe Join Date: May 2014 Location: Canada iTrader: (0)	Just doing a bit of reading, perhaps that is the case, sorry for late reply, didn't get notification of a reply. Just looking a bit, if I don't have nav, is there any reason to upgrade the TCU to combox or am I totally off base here. Not sure what it is, but i see lots of people upgrading it...
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