Help!!! speakers no sound

el1818 · 05-11-2010, 07:51 AM

I have an 07 e92 with logic 7 and the speakers stopped working all the sudden. The CD and changer is playing.The navi/screen is working but no sound at all. No door chime even without safety belt .

What could be the cause?
Is there a fuse for the logic 7 amp?

help

jaco · 05-11-2010, 08:05 PM

Let the car sit for about 20 minutes with no key in the ignition (off). Then try and starting it again. Same thing happened to me last Friday and next time i turned it on after lettin the car sit it was fine. Software glitch, I'm still goign to take mine in to have it checked out.

el1818 · 05-12-2010, 12:35 AM

But i have checked all fuses in the fuse box and all seems ok. I even tried disconnecting the battery and restart after an hour, still no sound.

what could it be? Help!!!

I am out of warranty, so no dealer visit

Help!!!

el1818 · 05-13-2010, 12:21 AM

All connection seems fine too.

Is that a test of some sort i can perform to check?

bravo · 05-15-2010, 09:47 AM

Did you have a bluetooth phone connected? I had the same issue several months ago, all the sound came back the next day, but I brought it in under warranty to have it checked out anyway and they said having an unsupported phone can cause that (and wanted to charge me because of it...). I believe if there's any fault within the MOST system, the system shuts off, turning off audio, bluetooth, etc.

I think I did a reset of some sort and it all just worked the next morning...hope you get it figured out.

el1818 · 05-20-2010, 02:57 PM

i can't bear with it anymore and sent it to the dealer yesterday. The Service advisor rang me today told me that ulf or tcu are faulty.
WTF!! it costs about usd1000 each to replace.

he said something wrong with the bluetooth connection but i have never even tried using this feature for phone pairing or calling since i got the car.

i went over quickly and suggest to him that why not just disactivate this phone bluetooth instead of buying the 'tcu and ulf 'thing he mentioned.But they are about to close and will try disactivating the bluetooth feature tomorrow.

he said is it just a try and no guarantee success.

well, i am thinking right now, may be that's not the right way to resolve this even if it works .

Shall i be asking to show me the test report or something to confirm faulty unit? or any suggestion from you guys i shall get him to perform?

Thanks guys

Taxvictim · 05-20-2010, 03:31 PM

For that much money, you could get a new head unit, new speakers, and a new amp.

That's the trouble with dealers: they don't repair things, they just replace them.

05-11-2010, 07:51 AM	#1
el1818 Private 10 Rep 70 Posts Drives: e92 335 Join Date: May 2009 Location: somewhere iTrader: (1)	Help!!! speakers no sound I have an 07 e92 with logic 7 and the speakers stopped working all the sudden. The CD and changer is playing.The navi/screen is working but no sound at all. No door chime even without safety belt . What could be the cause? Is there a fuse for the logic 7 amp? help
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05-11-2010, 08:05 PM	#2
jaco Captain 44 Rep 598 Posts Drives: 2011 E90 M3 SSII Join Date: May 2010 Location: Indy iTrader: (2)	Let the car sit for about 20 minutes with no key in the ignition (off). Then try and starting it again. Same thing happened to me last Friday and next time i turned it on after lettin the car sit it was fine. Software glitch, I'm still goign to take mine in to have it checked out. __________________ Jacob 2015 Chevy SS In 2011 E90 M3 DCT SSII Out
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05-12-2010, 12:35 AM	#3
el1818 Private 10 Rep 70 Posts Drives: e92 335 Join Date: May 2009 Location: somewhere iTrader: (1)	But i have checked all fuses in the fuse box and all seems ok. I even tried disconnecting the battery and restart after an hour, still no sound. what could it be? Help!!! I am out of warranty, so no dealer visit Help!!!
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05-13-2010, 12:21 AM	#4
el1818 Private 10 Rep 70 Posts Drives: e92 335 Join Date: May 2009 Location: somewhere iTrader: (1)	All connection seems fine too. Is that a test of some sort i can perform to check?
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05-15-2010, 09:47 AM	#5
bravo Registered 0 Rep 4 Posts Drives: 2007 335i Join Date: Jul 2006 Location: Minneapolis iTrader: (0)	Did you have a bluetooth phone connected? I had the same issue several months ago, all the sound came back the next day, but I brought it in under warranty to have it checked out anyway and they said having an unsupported phone can cause that (and wanted to charge me because of it...). I believe if there's any fault within the MOST system, the system shuts off, turning off audio, bluetooth, etc. I think I did a reset of some sort and it all just worked the next morning...hope you get it figured out.
	Appreciate 0 Quote

05-20-2010, 02:57 PM	#6
el1818 Private 10 Rep 70 Posts Drives: e92 335 Join Date: May 2009 Location: somewhere iTrader: (1)	i can't bear with it anymore and sent it to the dealer yesterday. The Service advisor rang me today told me that ulf or tcu are faulty. WTF!! it costs about usd1000 each to replace. he said something wrong with the bluetooth connection but i have never even tried using this feature for phone pairing or calling since i got the car. i went over quickly and suggest to him that why not just disactivate this phone bluetooth instead of buying the 'tcu and ulf 'thing he mentioned.But they are about to close and will try disactivating the bluetooth feature tomorrow. he said is it just a try and no guarantee success. well, i am thinking right now, may be that's not the right way to resolve this even if it works . Shall i be asking to show me the test report or something to confirm faulty unit? or any suggestion from you guys i shall get him to perform? Thanks guys
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05-20-2010, 03:31 PM	#7
Taxvictim Private First Class 30 Rep 193 Posts Drives: 2008 328i, Titanium Silver 6MT Join Date: Mar 2009 Location: Wake County, NC iTrader: (1)	For that much money, you could get a new head unit, new speakers, and a new amp. That's the trouble with dealers: they don't repair things, they just replace them.
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