E-Class (W212) 2010 - 2016: E 350, E 550
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Integrate bluetooth to stock radio

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Old Jun 9, 2024 | 10:29 PM
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W212 E250
Integrate bluetooth to stock radio

Hello Mercedes fans.

I am writing here hoping to get some help with an issue.

I have a 2010 E250 that has the Audio 20 NTG 4 stock radio. This radio only has the bluetooth telephony but not the bluetooth audio. It also has the audio jack aux port, but not the MMI port.

I want to find a solution for me to be able to stream bluetooth from my phone and be able to both see the song info on the radio screen and also skip tracks/pause from steering controls or the center console control wheel.

I have tried the aux adapter. It does not let me skip and neither shows song info. An fm transmitter is also too poor in quality and it also shows no info.

I need another solution which allows these functions. I don't have an MMI port. (Maybe there is a way to retrofit one?). Another solution that I thought of is replacing the radio with a newer model. I'm not sure about the compatibility, though.

Anything that could help is greatly appreciated. I have read countless forum threads and seen many videos about this. If there's a thread I missed thay might help, please point it out to me.
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Old Jun 10, 2024 | 09:03 AM
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2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Not sure if Road Top makes a CarPlay unit for your car, but you could start there. Also, you may want to post your question over on the audio forum.
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Old Jun 10, 2024 | 09:50 AM
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Why not upgrade your audio system? Crutchfield likely has several options that will fit and deliver many capabilities your OE system lacks.
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Old Jun 10, 2024 | 11:35 AM
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Have you tried to see if the engineering mode on your model has the Bluetooth on toggle in the secret settings?
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Old Jun 14, 2024 | 12:59 AM
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W212 E250
Originally Posted by JettaRed
Not sure if Road Top makes a CarPlay unit for your car, but you could start there. Also, you may want to post your question over on the audio forum.
Thanks for the answer. I'm looking for an oem solution. As i am aware, carplay is aftermarket, right?
(I will also post on the audio forum thanks for pointing it out)

Last edited by MariosA; Jun 14, 2024 at 01:02 AM.
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Old Jun 14, 2024 | 01:01 AM
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W212 E250
Originally Posted by Boarderjosh10
Have you tried to see if the engineering mode on your model has the Bluetooth on toggle in the secret settings?
It actually does have the option. When i activate it, it does nothing and the option deactivates itself when i turn the radio off and on again. So most likely it doesnt have bluetooth audio on its hardware.
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Old Jun 14, 2024 | 01:03 AM
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Originally Posted by streborx
Why not upgrade your audio system? Crutchfield likely has several options that will fit and deliver many capabilities your OE system lacks.
Thanks for the answer. As I understand it is not oem right? I am looking for an oem solution..
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