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Bluetooth Mic Issues on 2020 E 350

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Old May 31, 2020 | 06:47 PM
  #1  
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E-350
Bluetooth Mic Issues on 2020 E 350

Hello,
I recently upgraded to a 2020 E 350, and have been having issues placing calls over Bluetooth. It seems the receiver can hardly hear what I am saying, but I can hear them loud and clear. I have an Iphone X and did turn up the Bluetooth volume on the phone, and also tried bumping up the transmission volume on the car, to no avail. Anyone here know of any setting that I have to set up, to get the car's mic to work properly over Bluetooth for an Iphone X?

Thanks,
-c
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Old May 31, 2020 | 08:21 PM
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Sounds like you need to take it to the dealer. They will get this right.
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Old May 31, 2020 | 09:14 PM
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Thanks - I was told by a customer service agent to use the Me Connect services to resolve this issue. They mentioned to use the Me Connect button in the car and let them know of the issue - I guess the volume will be low on their end when i do this. It might be a software reset or setting rather than a hardware is what I was told. I'll see if they can resolve this.
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Old Jun 1, 2020 | 09:46 AM
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Agree, have dealer check it suggest they check HERMES control unit software. This unit is responsible for performing microphone checks.
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Old Dec 7, 2021 | 07:25 PM
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Resolved?

Hi - I was wondering if your issue with hands free call is resolved. If so, what steps did you take? Thanks!
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Old May 4, 2022 | 07:32 PM
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2019 GLC, 2019 E53
A few months old... Any update on this? I have a car out of warranty (2019) which has this issue. I purchased second hand so I don't know if it is a new problem or always there... I replaced the microphone to see if that helps and it did not. Passenger side works fine and for some reason it seems voice command works fine. (I can whisper softly into the mic to Navigate or request a call) but when I connect, the other party cannot hear me.

I should add that this is a 2019 E53 (W213)
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Old May 6, 2022 | 06:56 AM
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No more MB:(
Originally Posted by Varmintpro
A few months old... Any update on this? I have a car out of warranty (2019) which has this issue. I purchased second hand so I don't know if it is a new problem or always there... I replaced the microphone to see if that helps and it did not. Passenger side works fine and for some reason it seems voice command works fine. (I can whisper softly into the mic to Navigate or request a call) but when I connect, the other party cannot hear me.

I should add that this is a 2019 E53 (W213)
Try the dealer, they should be able to fix this.
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Old Jun 8, 2022 | 08:22 PM
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2019 GLC, 2019 E53
Originally Posted by places
Try the dealer, they should be able to fix this.
I may have to... Car is out of warranty, and purchased used... but I would really like to have this functionality. Hopefully it is an easy fix.
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Old Jun 8, 2022 | 10:06 PM
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2024 E450 AT Wagon, 2024 EQS450+ / Had: 2021 E350, 2019 E300, 2021 + 20 GLE350, 2019 E450 Wagon(s)
Happened in my 2020 GLE- was a software update - just FYI.
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Old Jun 8, 2022 | 10:20 PM
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2019 GLC, 2019 E53
Originally Posted by Lanzz
Happened in my 2020 GLE- was a software update - just FYI.
Thank you. Did you have the dealer do it? I'll call and set up an appointment is so. Was also wondering if this is something Mercedes Me can do remotely? My closest dealer isn't very close... but I can get to one if needed.

thanks
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Old Jun 9, 2022 | 03:37 AM
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EQE SUV AMG-line 350+
hands-free problems (people can hardly hear me) - MBWorld.org Forums
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Old Jun 9, 2022 | 09:45 PM
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Dealer had to do it.
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Old Apr 10, 2023 | 12:19 AM
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Op did you ever get it resolved?

Last edited by ArtyV; Apr 10, 2023 at 12:31 AM.
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Old Apr 10, 2023 | 12:22 AM
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Originally Posted by Lanzz
Happened in my 2020 GLE- was a software update - just FYI.
We have a 20 GLE450…drivers mic is garbage. What exactly did the dealer do, and was your issue caused by a previous update or was it always present? Would help us all to have the info from your work order. Thanks.

Last edited by ArtyV; Apr 10, 2023 at 12:28 AM.
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Old Apr 10, 2023 | 12:35 PM
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Originally Posted by ArtyV
We have a 20 GLE450…drivers mic is garbage. What exactly did the dealer do, and was your issue caused by a previous update or was it always present? Would help us all to have the info from your work order. Thanks.
I think this was the solution: https://mbworld.org/forums/e-class-w...ml#post8599085
Basically replace COMAND unit, in your case the MBUX head unit.
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