[kieranrobo]

I recently purchased a 2010 E92 330i, however I'm unable to get AUX input to work on my phone.

Even when my phone is plugged in to the AUX under the armrest, idrive won't let me adjust AUX volume from being locked to zero.

I really have tried everything, but the only way I'm able to play my own music in my car right now is by transferring music from a USB stick, which is obviously not ideal since I want to be able to use Spotify, etc.

I've done a lot of research but it there is so much conflicting information. Some of the threads on these forums have people saying its something to do with there being no combox in this model (then why is there an AUX input with AUX volume on idrive?), some saying the aux only supports ancient ipods, and some with other theories.

Any suggestions? I'd be willing to pay money for some sort of retrofit if it's required, but it seems strange I can't at least use a super basic AUX port.

[ctuna]

BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...1&d=1209780865
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://technicpnp.com/menuDiagrams/d...e90_92_93.html
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...3&d=1169133185
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://www.e90post.com/forums/attach...4&d=1278871872
http://www.e90post.com/forums/showthread.php?t=343673

In the 06 cars bluetooth phone and aux come from modules in the trunk area. From 08 to around 2010 there was either a TCU or mulf 2 hi sometimes both. Around 2010 they went to a combox to take care or of both bluetooth phone aux and wireless music streaming. If you have a screen in the middle of the dash or nav you have idrive.

[kieranrobo]

But all of these models should at least support aux input, right? Even after reading all of this I cant get my head around why aux input wouldnt work on my phone.

[ctuna]

So are you saying other sources do allow you to adjust the Aux?
Or other phones do?

The modules that support the aux, phone and usb break quite frequently.
But if other phones work and yours doesn't then it your phone you
should be looking at.

[kieranrobo]

Originally Posted by ctuna

So are you saying other sources do allow you to adjust the Aux?
Or other phones do?

The modules that support the aux, phone and usb break quite frequently.
But if other phones work and yours doesn't then it your phone you
should be looking at.

The aux can't be adjusted for any device I've plugged in. The issue isn't with my mobile device.

The AUX volume is just locked to zero on idrive.

[kieranrobo]

I managed to sort this by replacing the MULF in the boot. The AUX would occasionally start working for a day or two before breaking again, although it would be broken 90% of the time.

I firstly replaced the AUX module, but it didn't fix anything. I basically bought a MULF2 from ebay for £30 used, plugged it in, and my AUX was good to go again!

[dandog96]

Glad to hear that helped. I'm encountering the same issue in a 2008 328xi I just purchased, in which AUX doesn't work. Oddly, though the car has almost no corrosion, the MULF2-HI unit in the trunk looks a bit corroded. Dunno whether to start with the cheaper Aux / USB connector replacement or the MULF2 . Radio, CD, etc works. Just not USB / AUX, but I do hear a feedback noise when I turn the AUX volume up.

[kieranrobo]

Originally Posted by dandog96

Glad to hear that helped. I'm encountering the same issue in a 2008 328xi I just purchased, in which AUX doesn't work. Oddly, though the car has almost no corrosion, the MULF2-HI unit in the trunk looks a bit corroded. Dunno whether to start with the cheaper Aux / USB connector replacement or the MULF2 . Radio, CD, etc works. Just not USB / AUX, but I do hear a feedback noise when I turn the AUX volume up.

Hmmm sounds like your issue might be slightly different to what I had, I couldn't hear any sound. Is the volume for AUX locked to zero like mines was? If so I'd go ahead and replace the MULF with a used one. Otherwise, I'm not sure