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MMI Port Not Connected to Stereo

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Old May 28, 2018 | 07:14 AM
  #1  
tristar82's Avatar
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MB C220 CDI W204 (2010) Elegance
MMI Port Not Connected to Stereo

I've just purchased an MMI to 3.5 jack + USB however when I plug it in, I can't hear anything on the stereo
It's an COMAND APS NTG4 unit with a retractable screen in a 2010 W204 C220 CDI Elegance (which annoyingly doesn't have a built-in 3.5 jack of its own)
I've tried the following troubleshooting
1. Tried Media Interface and AUX on the stereo (Media says no device connected, AUS is just silent
2. The MMI to USB is giving out power which makes me think that the port is no dead
3. Tried several different devices, none with any luck

Given they were too cheap to install the 3.5 jack in the factory, I now wonder if perhaps the MMI isn't physically cabled into the stereo input?

Any help/ advice is welcomed!!

MMI Port
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Old Aug 19, 2018 | 02:55 PM
  #2  
Sundberg's Avatar
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2009 w211 E220 CDI 2003 W203 C200 CDI
try to take out the fuse for 10 sec and replace. worked for me on my w219 cls. but after i while i have to do it again :/
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Old Jul 2, 2024 | 09:01 AM
  #3  
lachlap's Avatar
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2008 CLS 350
Originally Posted by tristar82
I've just purchased an MMI to 3.5 jack + USB however when I plug it in, I can't hear anything on the stereo
It's an COMAND APS NTG4 unit with a retractable screen in a 2010 W204 C220 CDI Elegance (which annoyingly doesn't have a built-in 3.5 jack of its own)
I've tried the following troubleshooting
1. Tried Media Interface and AUX on the stereo (Media says no device connected, AUS is just silent
2. The MMI to USB is giving out power which makes me think that the port is no dead
3. Tried several different devices, none with any luck


MMI Port
Did you end up find a solution to the no audio issue?
Reply

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