Radio Problems (E92) :(

rsp072 · 10-16-2019, 02:33 PM

Hey guys,

I have an E92 328i, no iDrive system, and no Logic 7 sound system. About two years ago, I had a SOS error pop up and after that I had absolutely no sound coming from my radio. The screen isn't on either. I still have the seat belt chimes and the chimes for when the door is left open, however, my PDC doesn't have any sound either.

I tried the fiber optic bypass loop that I have seen others mention but I don't think that would do anything since I don't have the Logic 7? I'm not real sure how any of that works. Anyway, the bypass didn't work. At this point, I don't even know if my car using the fiber optics since it only has the professional radio.

So, I'm thinking it could possibly be the head unit? I'm just wondering if anyone else has had the same problem and if so, how'd you fix it?

Thanks so much!

jt335i · 10-16-2019, 02:49 PM

Have you checked for a blown fuse?

rsp072 · 10-16-2019, 03:17 PM

I checked all the ones that I thought would be related to the issue, but maybe I overlooked one. Do you have any recommendations?

ctuna · 10-17-2019, 02:25 AM

rsp072 · 10-17-2019, 11:21 AM

Quote:

Originally Posted by ctuna

Thanks for all that, I'll check when I have the chance! I do not have the iDrive system in my car and I don't have the Logic 7 system either.

This is what comes up when I do a vin decoder:
S639A Preparation f mobile phone cpl. USA/CDN
S645A BMW US Radio
S663A Radio BMW Professional
S676A HiFi speaker system
S693A Preparation BMW satellite radio
S694A Provisions for BMW 6 CD changer

ctuna · 10-17-2019, 06:53 PM

There is a fuse at the back of the Pro Radio as well, plus a fuse
at the cabin fuse board.

If the Radio won't light up and it has power at the connector it's
bad . Establishing power at the Radio connector is a must .
The IBS system in the car can turn off power to the Radio if the battery
is low or there is something wrong with the IBS system.

electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU

Fritzer · 10-17-2019, 10:03 PM

Did you check the cables/plugs behind the head unit?

icon2015 · 10-27-2019, 05:57 PM

So for two years you drove the car with no sound?

To be properly helped, post the last 7 chars of your cars VIN.

10-16-2019, 02:33 PM	#1
rsp072 Rebecca Shay 0 Rep 7 Posts Drives: BMW '07 328i (no iDrive) Join Date: Oct 2018 Location: North Carolina iTrader: (0)	Radio Problems (E92) :( Hey guys, I have an E92 328i, no iDrive system, and no Logic 7 sound system. About two years ago, I had a SOS error pop up and after that I had absolutely no sound coming from my radio. The screen isn't on either. I still have the seat belt chimes and the chimes for when the door is left open, however, my PDC doesn't have any sound either. I tried the fiber optic bypass loop that I have seen others mention but I don't think that would do anything since I don't have the Logic 7? I'm not real sure how any of that works. Anyway, the bypass didn't work. At this point, I don't even know if my car using the fiber optics since it only has the professional radio. So, I'm thinking it could possibly be the head unit? I'm just wondering if anyone else has had the same problem and if so, how'd you fix it? Thanks so much!
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10-16-2019, 02:49 PM	#2
jt335i Major 263 Rep 1,225 Posts Drives: 2010 E92 335i Monaco blue Join Date: Jan 2010 Location: Tampa, Fl iTrader: (0)	Have you checked for a blown fuse? __________________ 2010 BMW 335i: Monaco blue metallic/Premium+Sport Auto-Steptronic, BMW PE, Cobb Stage 2 2005 Mustang GT: Redfire metallic/5-spd/Ford Racing (Axle backs, silver Bullitt wheels)/K&N CAI/ Diablo Sport Predator Tuner 1997 Toyota Corolla 1983 Mercedes Benz 380SL Roadster
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10-16-2019, 03:17 PM	#3
rsp072 Rebecca Shay 0 Rep 7 Posts Drives: BMW '07 328i (no iDrive) Join Date: Oct 2018 Location: North Carolina iTrader: (0)	I checked all the ones that I thought would be related to the issue, but maybe I overlooked one. Do you have any recommendations?
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10-17-2019, 02:25 AM	#4
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	And 07 US 328 would come with either Logic 7 or Hi Fi both of which have and amp. And 08 would have come with a TCU and possibly a Mulf module. Did you put the bypass in at the TCU. Its important that you identify all the components in your Car and which sound system you have. 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...1&d=1209780605 http://www.e90post.com/forums/attach...1&d=1209780865 http://www.e90post.com/forums/showthread.php?t=641323 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...4&d=1278871872 No way to help without details. If the screen isn't on and you have checked the fuse at the back of the idrive and on the cabin fuse board it's likely your idrive has gone bad if you have a good battery. georges links https://www.bimmerfest.com/forums/at...9&d=1539905743
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10-17-2019, 06:53 PM	#6
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	There is a fuse at the back of the Pro Radio as well, plus a fuse at the cabin fuse board. If the Radio won't light up and it has power at the connector it's bad . Establishing power at the Radio connector is a must . The IBS system in the car can turn off power to the Radio if the battery is low or there is something wrong with the IBS system. electical e90 pdf http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja http://www.google.com/url?sa=t&rct=j...85464276,d.cGU http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
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10-17-2019, 10:03 PM	#7
Fritzer No one sleep in Tokyo 945 Rep 1,507 Posts Drives: 2011 E90 328i//1995 E34 530i Join Date: Oct 2018 Location: San Diego, California -> Austin, Texas iTrader: (3)	Did you check the cables/plugs behind the head unit? __________________ 2011 E90 328i, 1995 E34 530i, 1992 E32 740i, 1991 E34 525i
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10-27-2019, 05:57 PM	#8
icon2015 Private First Class 21 Rep 126 Posts Drives: E92 320d ~200 bhp Join Date: Apr 2018 Location: Bucharest iTrader: (0)	So for two years you drove the car with no sound? To be properly helped, post the last 7 chars of your cars VIN.
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