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01-13-2024, 06:08 PM | #1 |
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Idrive issues. PLEASE HELP
Hey everyone,
I am having an issue with my Idrive, the car is a 2009 E92, 168xxx miles (I know it's a lot, but I maintain the car like any other obsessed M driver). My idrive will change sources randomly while I'm driving. I'll be playing music through the aux input, but it will randomly change back and forth between aux and radio, changing randomly and rapidly, until it settles down between one of the two. I've checked my alternator, it's charging as usual, the battery is showing discharge warnings recently, but besides that, the car is running fine. I have recently changed the subs for SWS8s, but no other changes to the audio. The issue was happening prior to the speaker change and discharge warnings. Any help is greatly appreciated |
01-13-2024, 07:13 PM | #3 |
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04-11-2024, 11:25 AM | #4 |
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Replaced battery, gotta recode the AH to 95 vs the 90 it's currently at. Issue continues. I did use my foxwell to tell the car it is a new battery AND have it trickle charging to make up for the 5AH difference. The issue occurs right around the 25 minute mark of driving. Flips between aux/cd and the radio, usually 3 to 5 skips.
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04-12-2024, 10:40 AM | #5 |
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Sounds like maybe a head unit issue or a cable connection issue. Have you pulled the H/U and checked all the connections to the quad lock, etc.? If those are fine, then might try sourcing a used H/U on eBay and swapping it in.
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04-13-2024, 08:26 AM | #7 | |
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04-13-2024, 12:15 PM | #8 |
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04-13-2024, 04:11 PM | #9 | |
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04-13-2024, 04:13 PM | #10 |
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I really appreciate the offer, fortunately, I owned a pair of 335s before and one got totalled out and I gutted it for everything useful and have a spare head. If that doesn't fix it or I have issues with that head, I'll be sure to keep you in mind 🙏🙌
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04-13-2024, 05:19 PM | #11 |
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Sure thing 👍
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04-14-2024, 11:54 AM | #12 | |
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These aren't analog signals - they're packets of digital data (likely on a CAN bus), so if the head unit is doing this it must be getting a command from something...anything you control that can do this is suspect. My guess would be the idrive controller has failed. It's sending commands on CAN because it thinks the user is doing something. |
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04-14-2024, 12:56 PM | #13 | |
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04-15-2024, 05:08 AM | #14 |
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unplug the controller if that doesnt fix it then unplug the cic faceplate.
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04-17-2024, 08:24 PM | #15 |
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I think you might be on to something. Unplugged the controller, went to work, only did the skip once, rather than 5 or 6 skips in quick succession. I'll see if it does it again on the drive home from work. For the CIC face plate, are you referring to the screen?
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04-18-2024, 05:11 AM | #16 | |
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04-25-2024, 09:07 AM | #18 |
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So I think it's the head itself. Had it do the skips again and it wouldn't swap nor volume down from any of the control inputs, including the volume knob on the radio, even pushing to mute. Is there anything I need to know before I swap the head? I.e. coding the radio to the car. Thanks again for all your help guys, very much appreciated
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04-25-2024, 11:35 PM | #19 |
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Update: swapped the faceplate as advised, initial test has it working as normal. I originally intended to swap the entire head unit, but noticed a part number difference. The attached photos will show the discrepancy in the numbers, the 335 head comes back as an LCI head, but the M3 head doesn't show up on any part number searches, even on realoem. I'll let yall know what happens with the faceplate swap.
PS: I did notice the radio head got quite hot to the touch while I was testing the faceplate install. Is that normal, or could I be looking at a potential issue? Thanks again |
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04-26-2024, 05:36 AM | #20 |
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theres like 10-12 different cic part numbers. not an issue.
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04-26-2024, 12:43 PM | #22 |
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As long as its the C1A SW on the head unit, it shouldn't be a problem at all. You can code any of the missing features in/out.
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