E92 328I No Sound Drivers Side HiFi Speaker System

Allmanuel · 05-23-2021, 03:11 PM

Hello all, looking for some help/guidance. My 2009 e93 328i with HDR and Hi-Fi speaker system has no sound- including gong..on any of the divers side speakers for the past 9 months (happened before storing for winter) .Not sure what happened (wet amp?). Fuse is good; is my only option an OEM amp replacement? OK dumb question- if the amp is bad, why is there sound on the passenger side.. Stated to dig in to remove amp-but lots of trim to remove (convertible) and figured out reach out before moving on or taking to a shop. Any help you have would be appreciated!
Thanks in advance....

ctuna · 05-23-2021, 07:47 PM

Allmanuel · 05-23-2021, 08:20 PM

Yes; have checked balance, fuse and it did work before. Started to remove tray to look at the amp; it's a PITA to get the tray out in the convertible. Again dumb question but if the amp is bad would sound work on one side- there's no hissing or popping; etc

ctuna · 05-23-2021, 10:14 PM

It's possible.
It's also possible that it could be a Radio or Idrive problem.
You could start taking measurements but it's probable just as easy
to swap out the amp.
You could scope the Input signals but you probably don't have
a O-scope.
You have to start somewhere.
I believe to have good access you will have to take the left trim out.

https://www.bmwrepairguide.com/trunk...er-damage-bmw/

05-23-2021, 03:11 PM	#1
Allmanuel New Member 0 Rep 14 Posts Drives: E30 man,e93 man, e39 328i man Join Date: Feb 2019 Location: PA iTrader: (0)	E92 328I No Sound Drivers Side HiFi Speaker System Hello all, looking for some help/guidance. My 2009 e93 328i with HDR and Hi-Fi speaker system has no sound- including gong..on any of the divers side speakers for the past 9 months (happened before storing for winter) .Not sure what happened (wet amp?). Fuse is good; is my only option an OEM amp replacement? OK dumb question- if the amp is bad, why is there sound on the passenger side.. Stated to dig in to remove amp-but lots of trim to remove (convertible) and figured out reach out before moving on or taking to a shop. Any help you have would be appreciated! Thanks in advance....
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05-23-2021, 07:47 PM	#2
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	You have tried playing with the balance right? And was it working before? Hi Fi amps are cheap on ebay and there is only one connector to plug in. Yes you can replace it with and aftermarket amp it's easy with a Technic pnp harness but then the speakers for the fronts should be upgraded to. Have you actually physically looked at the amp . Have tried reseating the connector to it . It's a one lever connector. Look for water and corrosion on the connectors. 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/attach...1&d=1209780865 http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/ http://technicpnp.com/menuDiagrams/d...e90_92_93.html http://www.musicarnw.com/page-2/ http://www.e90post.com/forums/attach...3&d=1169133185 http://www.e90post.com/forums/attach...1&d=1209780605 http://www.e90post.com/forums/showthread.php?t=641323 http://www.e90post.com/forums/attach...4&d=1278871872 http://www.e90post.com/forums/showthread.php?t=343673 https://www.bimmerfest.com/threads/e...n-752.1275694/
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05-23-2021, 08:20 PM	#3
Allmanuel New Member 0 Rep 14 Posts Drives: E30 man,e93 man, e39 328i man Join Date: Feb 2019 Location: PA iTrader: (0)	Yes; have checked balance, fuse and it did work before. Started to remove tray to look at the amp; it's a PITA to get the tray out in the convertible. Again dumb question but if the amp is bad would sound work on one side- there's no hissing or popping; etc
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05-23-2021, 10:14 PM	#4
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	It's possible. It's also possible that it could be a Radio or Idrive problem. You could start taking measurements but it's probable just as easy to swap out the amp. You could scope the Input signals but you probably don't have a O-scope. You have to start somewhere. I believe to have good access you will have to take the left trim out. https://www.bmwrepairguide.com/trunk...er-damage-bmw/ Last edited by ctuna; 05-23-2021 at 10:27 PM..
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