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W205 Temporary fix for Audio 20 issue after SAT radio remote update!!

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Old Mar 24, 2018 | 10:32 PM
  #1  
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2014 W204 C300 Sport
W205 Temporary fix for Audio 20 issue after SAT radio remote update!!

*NOTE TO ANYONE WITH THE AUDIO 20 RADIO THAT ISNT WORKING SINCE THE SAT RADIO UPDATE RELEASED BY SIRIUS XM!*
If you are a real DYI'r and aren't afraid to pull some stuff apart, shoot me a Message and I'll give you a simple as possible to explain TUT on a temp fix for this.
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Old Mar 26, 2018 | 11:20 AM
  #2  
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C300 4Matic
I have 2015 W205 C300 4Matic. This happened to me. Cannot use any audio function, and sometimes backup camera doesn't display. Also, if I select Radio, it locks climate control and entire system for about 30-seconds. My dealer is offering to do the temporary fix for me via service appointment. MB after 7-days still doesn't have permanent fix. Why would it take so long?
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Old Mar 26, 2018 | 12:22 PM
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2014 W204 C300 Sport
Originally Posted by Ken_MB
I have 2015 W205 C300 4Matic. This happened to me. Cannot use any audio function, and sometimes backup camera doesn't display. Also, if I select Radio, it locks climate control and entire system for about 30-seconds. My dealer is offering to do the temporary fix for me via service appointment. MB after 7-days still doesn't have permanent fix. Why would it take so long?
So the issue is Sirius XM released a over the air software update, and for some reason in Audio 20 Units, the new software messes with the audio 20 software. And Benz is currently trying to expedite a patch for it. Currently most dealers are offering a temporary patch that gives access back to most functions, but doesn't truely fix the issue.
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Old Mar 26, 2018 | 01:59 PM
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2015 c300
How tough is the temp fix?

Last edited by tiremanmj; Mar 26, 2018 at 09:30 PM.
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Old Mar 26, 2018 | 05:33 PM
  #5  
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From: Orange County, CA
C300 4Matic
Was just going to make a thread on this! Just went by my dealer (literally 25 minutes ago) and told me that Mercedes is still trying to get a software update that'll fix this. ETA for that update apparently is next week or two weeks. I'm going back April 9th to get this addressed. I'll keep ya guys posted on that.

My touchpad stopped working at some point during my drive last week, so hopefully this will fix it. I'll also get my Nav updated to the latest software, even though people hate it for some reason?
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Old Mar 26, 2018 | 08:39 PM
  #6  
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2015 W205 C400 4Matic
Originally Posted by tiremanmj
How tough is the temp fix?
Very straight forward! Took me less than 10 minutes start to finish. Absolutely everything other than the Sirius worked IMMEDIATELY.
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Old Mar 26, 2018 | 08:42 PM
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15 C300, 16 Tesla Model S, 2004 Cayenne Turbo
Hi there,
I attempted the fix earlier in the parking lot at work. I taped the fiber optics wires end to end with tape and reinforced them inside a straw.

Everything immediately started working, but had no volume.

What did I do wrong?

Andy
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Old Mar 26, 2018 | 09:29 PM
  #8  
paulo alvarez's Avatar
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c300
can you send me the info how to do it?

if you cold send me the info and the locations of the module.
Originally Posted by Ryankehoe
*NOTE TO ANYONE WITH THE AUDIO 20 RADIO THAT ISNT WORKING SINCE THE SAT RADIO UPDATE RELEASED BY SIRIUS XM!*
If you are a real DYI'r and aren't afraid to pull some stuff apart, shoot me a Message and I'll give you a simple as possible to explain TUT on a temp fix for this.
Reply
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Old Nov 4, 2018 | 05:41 AM
  #9  
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W205
Originally Posted by Ryankehoe
*NOTE TO ANYONE WITH THE AUDIO 20 RADIO THAT ISNT WORKING SINCE THE SAT RADIO UPDATE RELEASED BY SIRIUS XM!*
If you are a real DYI'r and aren't afraid to pull some stuff apart, shoot me a Message and I'll give you a simple as possible to explain TUT on a temp fix for this.
would you send me the tuto please ?
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Old Nov 4, 2018 | 11:22 AM
  #10  
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2015 C300 4Matic Sport
Mercedes lets third parties push dangerous updates to their head units remotely??

Last edited by benzdude; Jun 7, 2019 at 12:34 PM.
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Old Jun 7, 2019 | 05:43 AM
  #11  
Anthony Whelan's Avatar
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C220 Bluetec W205
Originally Posted by Ryankehoe
*NOTE TO ANYONE WITH THE AUDIO 20 RADIO THAT ISNT WORKING SINCE THE SAT RADIO UPDATE RELEASED BY SIRIUS XM!*
If you are a real DYI'r and aren't afraid to pull some stuff apart, shoot me a Message and I'll give you a simple as possible to explain TUT on a temp fix for this.
Please send to me
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Old Jun 8, 2019 | 09:32 AM
  #12  
Anthony Whelan's Avatar
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C220 Bluetec W205
Originally Posted by Ryankehoe
*NOTE TO ANYONE WITH THE AUDIO 20 RADIO THAT ISNT WORKING SINCE THE SAT RADIO UPDATE RELEASED BY SIRIUS XM!*
If you are a real DYI'r and aren't afraid to pull some stuff apart, shoot me a Message and I'll give you a simple as possible to explain TUT on a temp fix for this.
Help me please, I have lost all my Audio 20 functions.
Reply
Old Jun 8, 2019 | 11:09 AM
  #13  
GreekUPS's Avatar
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From: Westchester County, NY
‘15 C300 4M Sport, ‘20 GLC300
I would head over to the dealer. This issue was from last year.
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Old Jan 7, 2020 | 02:54 AM
  #14  
mrelijahjulian's Avatar
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2015 W205 C300 Sport
I’m having this same issue. Please anyone have info on the tutorial and location for the temp fix?
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Old Nov 2, 2021 | 01:10 PM
  #15  
Tankster's Avatar
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mercedes c300
Have that radio problem in my 2015 c300 benz , it happened the same time everybody had the problem in 2018, just rode without it because warrenty was over, now looking it up i see alot of people had the same issues. what was the final solution?
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Old Aug 31, 2023 | 03:22 AM
  #16  
jaques L's Avatar
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2015 Mercedes benz c300
Originally Posted by l3it3r
Very straight forward! Took me less than 10 minutes start to finish. Absolutely everything other than the Sirius worked IMMEDIATELY.

what are the steps? Thanks
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Old Apr 21, 2024 | 04:23 PM
  #17  
Spg924's Avatar
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E350 c300 M350
Help!

Originally Posted by Ryankehoe
*NOTE TO ANYONE WITH THE AUDIO 20 RADIO THAT ISNT WORKING SINCE THE SAT RADIO UPDATE RELEASED BY SIRIUS XM!*
If you are a real DYI'r and aren't afraid to pull some stuff apart, shoot me a Message and I'll give you a simple as possible to explain TUT on a temp fix for this.

IM 2 years w no screen- screen comes on, says “mercedes” Then thats it—- cant change or control mouse or dial- radio come on (sometimes) but cant change chanel - and sometimes its just static - i do hard reset (eject button) It shuts down pops up same way -
I just want screen to work so i can trade it in — Please send fix
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