My sound, radio, satellite radio, phone, & cd changer all stopped working! - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 05-02-2013, 09:36 PM Thread Starter
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Date registered: May 2013
Vehicle: 2004 SL55
Location: San Diego, CA
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My sound, radio, satellite radio, phone, & cd changer all stopped working!

I have a 2004 SL55, and all of a sudden I have no sound. The am/fm radio shows the stations but no sound. The navigation works, but no sound. It now shows I have no satellite radio, no cd changer, and also no phone.

Anyone had this problem before? Any ideas what is wrong?

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post #2 of 3 (permalink) Old 05-02-2013, 09:50 PM
Date registered: Jul 2005
Vehicle: 90 300E, 99 ML430, 00 ML320, 05 E500 4matic Wagon
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It sounds like the AGW has given up. Do not let the dealer rape you on this. I had a very similar issue and it was the AGW
Mercedes sells a reman AGW part# A220870418988 for $231 dollars. About 1-1.5 hours labor. The AGW (Audio Gateway) controls a huge part of all the audio signals.
They will know what has gone bad by checking it with the MB Star system
If they use the brand new part it is $1330 without labor. The MB reman part has the same warranty if it installed at the dealer. It should go the dealer because the AGW has to version coded for all your cars specific options.
I went through this about 2 years ago and was treated very well.
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post #3 of 3 (permalink) Old 05-05-2013, 04:43 PM
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It could be any of the modules in the fiber optic ring. They are all linked together by fiber optics and if one goes down, this can be the result. Yes, it has to be checked with an SDS. I replaced many different modules for these problems, 220 S classes were very well known for CTEL PSE issues
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