03-12-2018, 06:13 PM | #1 |
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Engine/Transmission issue after shifting into sport transmission
So I was driving today, did a little pull, coasted then put the car into sport mode with the transmission and floored it. Car immediately shifted into a low gear and Christmas lights with a message I can’t recall. Pulled over, turned car off and tried to turn on but no go. I heard and felt the starter try to start the engine as it was shaking/vibrating trying to turn over but never did. The starter or whatever was just going for like 10 seconds or so. Couldn’t even get it in neutral. Hitting the gas did nothing. It’s the 4 cylinder gasoline engine
I got a tow to the nearest dealership and waiting to hear back. Any ideas? I know my explanation isn’t that great |
03-12-2018, 06:26 PM | #2 |
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What year, probably an N20? It was probably a drivetrain malfunction error and drive moderately, power restriction to 50mph. How many miles on the odo? Maybe due to charge pipe failure as it happened under load/high boost. The ECU may be trying to protect the turbo, not sure why it wouldn't let you restart but wired things can happen with this sort of failure as far as what the ECU will do. Maybe if you waited a few minutes to let the turbo cool it would have restarted.
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03-12-2018, 06:30 PM | #3 | |
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03-13-2018, 11:41 AM | #5 |
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Update: Just heard from dealer. they think it might have been a fault with the DME. the engineers and techs are still digging into it.
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03-13-2018, 07:11 PM | #6 |
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03-16-2018, 01:52 PM | #8 |
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DME replaced. Lost all my codes. Which prompts the question, when I coded the transmission chassis configuration on (to choose transmission+chassis or just chassis, etc) Could that have caused what they are calling fault codes?
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03-16-2018, 03:13 PM | #9 |
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I'm able to configure sport mode without coding, seems odd that it would cause the issue as coding just unlocks existing features unless it was coded off at the factory because it was still in beta.
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03-16-2018, 07:13 PM | #10 |
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I doubt it's the coding as well. Those are "approved" engineering settings that just get disable from the customer (like the auto start stop remembering the last setting vs defaulting to always on as per previous years).
If the DME died, it would have thrown a bunch of codes on the failures (which is why they would have replaced it if that was root cause). |
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03-17-2018, 08:31 AM | #11 |
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03-17-2018, 08:55 AM | #13 |
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I'm assuming you mean non cpo used car dealership? By the way that's racist, sexist, and ageist
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03-18-2018, 06:41 PM | #14 | |
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03-19-2018, 12:16 AM | #15 |
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Drives: 2020 Z4 M40i - 2022 M4C Convrt
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No - She had a Super Stock Dodge not a BMW. Must be some other little old lady.
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03-19-2018, 10:03 AM | #16 |
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No no no, that's ACK-OR-AH
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Originally Posted by jmg
That seat was meant to be used, are you going to deny it's purpose in life? |
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03-19-2018, 10:04 AM | #17 |
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Was a joke kinda like the award your kid got for failing at his/her favorite sport LMAO, sorry man, couldn't resist
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Originally Posted by jmg
That seat was meant to be used, are you going to deny it's purpose in life? |
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03-20-2018, 07:47 PM | #18 | |
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Butt dyno always wins. |
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