07-15-2020, 01:28 PM | #1 |
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Drivetrain malfunction
Interesting one here. So I was on the express way with open road ahead, so I put the hammer down from about 60 up to 90’ish. The car started to feel like it was sputtering, went into limp mode, and kicked out the infamous “Drivetrain malfunction” message.
Got home, turned the car off and let it sit for about 5 mins. When I started it back up its like the ECU lost its mind. It said service was overdue from 1/1/2006 and that it needed an oil change. Let it run for a little bit, and shut it down again. Now when I start it everything is fine. I plugged in my scanner and there are no codes. Thoughts on what to do, and before you say “take it to the dealership”, my dealership won’t acknowledge there is a problem unless there are codes. I know, it sucks, but I have to deal with that. |
07-15-2020, 03:38 PM | #2 |
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Have you had the transmission wiring harness recall on your car?
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07-15-2020, 05:01 PM | #3 | |
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Edit: Another thing to note is that I was in 2WD, and this was the first time I have had the car in this mode. I have made several similar runs in 4WD and 4WD Sport, and its never acted this way. Last edited by ambletx; 07-15-2020 at 05:57 PM.. |
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07-15-2020, 06:11 PM | #4 | |
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DTM's are a catch-all so many things could have triggered it. Had a couple of these on my 15' F10 M5 and there were no codes when I scanned; they usually resolved on their own. I've not had any on my current F90 M5C.
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07-15-2020, 07:15 PM | #5 |
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Ok, I took it out tonight and did some 0-60 runs and a few runs from 50-90, and I finally got it to throw a code, P0303 (cylinder 3 misfire). I'm able to get it to go into limp mode consistently now, and will call the dealership in the morning.
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07-15-2020, 07:15 PM | #6 |
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Did you get pictures of all the messages on the screen? Maybe dealer will believe you? Very bizarre that after all that no codes.
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07-15-2020, 07:21 PM | #7 |
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Yes sir I did, and that is exactly what I am going to use to get them to work on the car. I also took a pic of the misfire code on the scanner to further my case.
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07-16-2020, 08:28 AM | #8 | |
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07-16-2020, 11:17 AM | #9 |
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I will keep this thread updated. The car goes in today at 1 PM
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07-16-2020, 04:37 PM | #10 |
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07-16-2020, 05:26 PM | #11 |
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dirty plug. ask me how I know.
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07-16-2020, 05:32 PM | #12 | |
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07-16-2020, 07:00 PM | #14 |
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07-18-2020, 07:43 PM | #16 |
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07-18-2020, 08:37 PM | #18 | |
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07-20-2020, 04:19 PM | #19 |
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Just got a call from my SA, and this is the weirdest issue I have ever heard of. So bear with me on this, because even she was confused by what BMWNA's answer was. So here goes...
There is a certain chemical compound in the coolant which can have a reaction with the parts in the car's coolant system. This is a rare case, but has been seen before where once the reaction occurs it causes it to overflow. This overflow was getting on the coil causing cylinder #3 to misfire. They are waiting on BMWNA to tell them what parts need to be replaced to resolve this issue. |
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07-20-2020, 04:21 PM | #20 | |
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07-20-2020, 04:23 PM | #21 | |
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Edit: I'll be sure to scan/post up the report once I have the car back Last edited by ambletx; 07-20-2020 at 04:31 PM.. |
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07-20-2020, 04:31 PM | #22 | |
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I had X5 and the tech updates.. simple things like remote start or the ability to keyless lock and unlock with no touch was nice. |
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