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E90/E91/E92/E93 (2006 - 2013)
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Old 07-14-2014, 09:43 PM
MBricker97 MBricker97 is offline
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Location: Arizona
Join Date: Oct 2012
Posts: 17
Mein Auto: 2007 328xi
Radio not working at all!

I have a 328xi 2007. I got in to my car this morning and the radio wouldnt turn on. I restarted the car a still nothing. I have a sos notification on the dash.

Can anyone give some insight. Is it fixable?
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Old 07-14-2014, 10:35 PM
ctuna ctuna is online now
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Location: usa
Join Date: Jan 2010
Posts: 4,029
Mein Auto: 325xi wagon
It could be anything in the Most Loop.

It could be anything in the Most Loop.
What's the most Loop its a fiberoptic Bus that BMW uses to connect
the Radio or Idrive to the SOS/bluetooth , satalite and L7 amp if you have one.
Any break in the loop can make all the modules look bad.
I would start out with fuse checks.
Then look for loose connections fiberoptic and electrical.
You can also bypass the TCU to see if the sound comes back.
I would also check the battery voltage to be sure its above 12 volts



Can it be fixed sure but at what price is the better question.

Last edited by ctuna; 07-14-2014 at 10:41 PM.
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