Aux/iPod help!
I purchased a 2011 C350 last month, and have been puzzling over my Aux system since I got it.
It has the integrated 3.5mm Aux/30-pin iPod connector in the top left side of the glove box, but I haven't gotten my system to recognize anything plugged into it. I first got a male-male connector and tried my phone and an iPod Shuffle: no dice. I got a Coolstream CarPro and connected it to the 30-pin: also nothing. The COMAND showed no indications that anything was connected. Max volume on everything.
So I sent the CarPro back, and took it to a dealer real quick. They tried a couple different connectors in the glove box to no avail. I also popped off the side panel hoping to find the hidden Aux port, but there's nothing there.
HALP. I need to be able to play Bluetooth somehow! What's going on here?
Edit 6/1/17: To update, I tried to replace the media interface, to no avail. Something may be wrong at the fiber optic level or the head unit/software level. Read on for more info.
Last edited by user 278744664; Jun 1, 2017 at 01:51 PM. Reason: Recent events




If you take out the side pannel, the aux port is a gray/green cable, it should be a bit dug in. It just "ends" and is where the aux port is. Should be above the ipod connector cable.
Something could not be connected properly as well.
If you take out the side pannel, the aux port is a gray/green cable, it should be a bit dug in. It just "ends" and is where the aux port is. Should be above the ipod connector cable.
Something could not be connected properly as well.
The dealer tried another cable and one with a lightning connector with one of their phones and nothing registered.
All of the posts I have seen from people who have uncovered the hidden Aux port (for cars without the iPod integration cable or whatever it is) have shown it vestigially tucked behind the triangular panel on the passenger side of the glove box. I have a little cutout there with a dummy plug, but there are no wires leading to that space at all.
Any ideas about what could possibly be "not connected properly" and how to check?
Last edited by user 278744664; Oct 20, 2016 at 07:45 PM. Reason: Link
Also, I'm not familiar with the different audio/nav/COMAND option iterations. But I have the pop-up COMAND screen, 6-disc CD changer, and the above-mentioned hybrid iPod/Aux cable in the glovebox.
Last edited by user 278744664; Oct 26, 2016 at 10:20 AM. Reason: Added info




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When I hit have AUX selected from the audio drop down and/or hit the DISC button, the AUX option on the lower left of the screen is grayed out...I can't select it.
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But I'll look into it today and maybe post pics of what I see.
(Side note: I changed the cabin air filter the other day, and realized I was able to sort of get at some more of the wiring behind and around the glove box if I really wanted to, but not sure if that would help.)
Do you have a part number or photo that I you can show me?
Reviving this post in the hopes that someone else has a suggestion.
Bovee WMA3000A+ Wireless Bluetooth Music Interface Adaptor for in car iPod Integration (AMI/MDI connector)
the 3000 and 3000+ are the same devices btw.
https://www.amazon.com/Bovee-WMA3000...words=tune2air
Bovee WMA3000A+ Wireless Bluetooth Music Interface Adaptor for in car iPod Integration (AMI/MDI connector)
the 3000 and 3000+ are the same devices btw.
The fact that nothing seems to be recognised strongly suggests either a fault or a configuration issue. The iPod/Aux cable ought to work without any further finagling so, if it doesn't, I think you have a faulty COMAND system. Plugging lots more devices in doesn't seem very likely to result in a working system.
as a last resort the Mercedes Bluetooth media adapter would prob work for you, they are no longer available but they come up on ebay every now again for between $75 and $200.
part number A2129004712
this is a frustrating problem to deal with, i feel your pain.
Last edited by B737; May 7, 2017 at 07:58 PM.
If you take out the side pannel, the aux port is a gray/green cable, it should be a bit dug in. It just "ends" and is where the aux port is. Should be above the ipod connector cable.
Something could not be connected properly as well.
Well they both workED, the 30-pin connector stopped recognizing anything attached to it somewhere around the time I fooled around with the engineering mode, the the wire is a little frayed too so could be that.
Finally got fed up and dropped it off at the dealer again today, and they've had it all day. Apparently the whole "multimedia control unit" is shot -- they got no signal from the thing when they attached any sort of diagnostic into it. How that happens...

They said it's a $900 part that needs to come from Germany and will be another $600 to install. I had to muffle a laugh into the phone.
Thanks for the part, B737, but from looking at pictures of that part, it looks like it still needs to plug into the car's glovebox port...which is precisely the problem. So. Fml, right?
Can anyone confirm if I'm looking for A2049000300 or similar? Or what the most up-to-date part is? I'm gonna try just looking online. If it's this one, they're on eBay for like 60 bucks...
I did find a used unit online and it looks like it's easy to get to...so I figured I would try swapping. Would something like this need programming of any sort? Not sure how MB does stuff generally. We'll find out next week, I guess.







