330i amp sound issues

Marklorenzo · 07-20-2013, 07:57 AM

Hello all. I have a 2006 330i with regular professional radio no idrive. Does have logic 7 amp. Decided one day to hit the SOS button on the way home from a trip to find out what its all about. Park car. Next day no sound out of speakers. I still have sos function and sound but no music. Lost all bluetooth connection. First instinct was to google my problem. FoundFoundany threads about replacing the logic 7 amp. Found a wrecked 330i and replaced. Still same issue. Read mixed emotions about reprogramming for amp. The amp I bought is the exact same kind and out of the same exact year and model. So far I have checked and pulled all radio and phone fuses. Disconnected negative side of battery. And replaced amp. Still no luck. Dealer wants to charge 150 $ just too look at it. Out of warranty also

Marklorenzo · 07-25-2013, 09:54 PM

Bump

ctuna · 07-25-2013, 10:25 PM

07-20-2013, 07:57 AM	#1
Marklorenzo New Member 2 Rep 15 Posts Drives: 330i Join Date: Feb 2013 Location: Fort Wayne iTrader: (0)	330i amp sound issues Hello all. I have a 2006 330i with regular professional radio no idrive. Does have logic 7 amp. Decided one day to hit the SOS button on the way home from a trip to find out what its all about. Park car. Next day no sound out of speakers. I still have sos function and sound but no music. Lost all bluetooth connection. First instinct was to google my problem. FoundFoundany threads about replacing the logic 7 amp. Found a wrecked 330i and replaced. Still same issue. Read mixed emotions about reprogramming for amp. The amp I bought is the exact same kind and out of the same exact year and model. So far I have checked and pulled all radio and phone fuses. Disconnected negative side of battery. And replaced amp. Still no luck. Dealer wants to charge 150 $ just too look at it. Out of warranty also
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07-25-2013, 09:54 PM	#2
Marklorenzo New Member 2 Rep 15 Posts Drives: 330i Join Date: Feb 2013 Location: Fort Wayne iTrader: (0)	Bump
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07-25-2013, 10:25 PM	#3
ctuna Lieutenant General 2046 Rep 13,366 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	You are much more likely to find answers here. http://www.e90post.com/forums/forumdisplay.php?f=27 I think you need to start out with a scan for error codes with a scanner or coding setup capable or reading all the BMW Codes. You could also use Most Bus jumpers to bypass modules to see if it comes back to life. There are several modules that hang of the Most Bus Ring and if any one fails the anything on the ring is useless. The thing that comes to mind it the TCU module. (Telephone Control Unit) There is an Entertainment pdf and an electrical theory pdf in the following links you should read the parts about the Most Bus. Also FYI BMW stereo types http://www.e90post.com/forums/showthread.php?t=352586 http://www.e90post.com/forums/attach...2&d=1266451970 http://www.e90post.com/forums/attach...2&d=1260829447 http://www.e90post.com/forums/showthread.php?t=343673 http://www.e90post.com/forums/showthread.php?t=138949 http://www.e90post.com/forums/attach...2&d=1260829447 http://www.e90post.com/forums/attach...1&d=1209780605 http://www.e90post.com/forums/showthread.php?t=641323 http://www.e90post.com/forums/attach...1&d=1209780865 http://www.bawarec.ru/manuals/3er/e9...3er-e90-12.pdf http://www.musicarnw.com/page-2/ http://www.e90post.com/forums/attach...4&d=1278871872 Last edited by ctuna; 07-25-2013 at 10:30 PM..
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