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2010 2011 BMW 5 Series Forum F10 DME Failure - Unplugged manifold w/ battery connected - now what? |
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02-03-2023, 06:36 PM | #1 |
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DME Failure - Unplugged manifold w/ battery connected - now what?
2011 535i
Essentially title. While replacing the serp belt, OFHG, & 6 Intake gaskets, I unbolted the manifold, unplugged the plugs underneath, but never disconnected the battery. Afterward, turned on the car, (Did not start engine, just battery), got errors out the ass, wipers running by themselves, and every control is unresponsive. Had it towed to my mechanic, but we can't even get the parking brake off. Battery died, now that's been replaced. Mechanics saying they called in someone who's more familiar with BMW coding, but it's likely the DME will have to be replaced. Anyone know how much this'll cost, or if recoding is still possible? |
02-04-2023, 11:16 AM | #2 |
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check the 2 bin connectors towards the front of the DME. A stupid design by BMW but they can actually be interchanged! It happened to me the first time I put back together the DME connectors but I got lucky and just had a ton of errors. Once I reversed those 2 connectors the car started right up as normal.
Also, replace the battery. Nothing in BMW-world will work as intended if the battery isn't fully charged.
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02-05-2023, 08:15 PM | #3 | |
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Quote:
I okay’d the replacement but I’m not sure if they’ve installed the new battery it yet. I’ve had the car since 2016 without ever replacing it, it could be as old as the car. I’ll get back to you with updates. |
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02-12-2023, 10:42 PM | #4 |
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Second the suggestion to double check the plugs are in order - and also double check that they're all fully seated, some will click into place but still be far from fully seated...that got me real good one time 🙃
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02-13-2023, 02:36 PM | #5 |
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same issue but I didn’t disconnect wiring with battery connected.
No wipers or anything like that mine starts and drives no errors displayed I run info memory and error memory in BimmerLink and get these codes. Also attached dme plug location as well. New battery and alternator battery didn’t code battery as it was 105ah same as old but did register it. |
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coding, dme, dme failure, dme flash, dme locked |
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