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      02-08-2024, 08:13 AM   #1
SBG
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Drivetrain Malfunction

Any members here with M6 drivetrain malfunction and willing to share what the issues were and the resolution?
Got a drivetrain malfunction this morning but no error codes. Drove car yesterday and everything was normal.
Thanks.
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      02-08-2024, 09:40 AM   #2
15Geez
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Same thing happened to me 6 months ago. I received the malfunction while pulling off at an intersection. Turned the car off, waiting a minutes, and proceeded to drive the car. Oddly, no issues since that happened (knock on wood). I did, however, recently have my spark plugs replaced for piece of mind. Intent to do my injectors and ignition coils next.
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      02-08-2024, 09:55 AM   #3
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Quote:
Originally Posted by 15Geez View Post
Same thing happened to me 6 months ago. I received the malfunction while pulling off at an intersection. Turned the car off, waiting a minutes, and proceeded to drive the car. Oddly, no issues since that happened (knock on wood). I did, however, recently have my spark plugs replaced for piece of mind. Intent to do my injectors and ignition coils next.
Appreciate the feedback. Turned the engine off and on a few times but error still on idrive. Having it towed (luckily this happened in my driveway) to the dealer for diagnosis. Thinking it may be the O2 sensor as I had a battery discharge error ~three weeks ago. I'll update this thread when I get a diagnosis.
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      02-08-2024, 01:08 PM   #4
15Geez
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Our cars rely heavily on a solid battery charge. Was you car sitting for a while (2+ weeks) without a trickle charger prior to the drivetrain malfunction? Not sure if the two are related but that's what happened in my case. I usually hook mine up to a charger if I know its going to sit for more than a week...
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      02-08-2024, 08:14 PM   #5
TinCanSailor
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I have found that when this happens it can take up to 3 cycles of engine on/off before it resets. My last occurrence I still had the error but as I drove back home it cleared after the key cycling 2 times.
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      02-08-2024, 09:45 PM   #6
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Quote:
Originally Posted by 15Geez View Post
Our cars rely heavily on a solid battery charge. Was you car sitting for a while (2+ weeks) without a trickle charger prior to the drivetrain malfunction? Not sure if the two are related but that's what happened in my case. I usually hook mine up to a charger if I know its going to sit for more than a week...
I made the mistake of letting the car sit for two weeks without a charger. Car is at the dealer now and I hope to get a diagnosis tomorrow.
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      02-08-2024, 09:47 PM   #7
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Quote:
Originally Posted by TinCanSailor View Post
I have found that when this happens it can take up to 3 cycles of engine on/off before it resets. My last occurrence I still had the error but as I drove back home it cleared after the key cycling 2 times.
I actually did 4 cycles of the engine on and off but the error message didn't go away. Didn't want to risk driving so off to the dealer it went and I expect to get a diagnosis tomorrow.
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      02-09-2024, 11:30 AM   #8
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I had this happen once and it went away at a stop sign. I think I power cycled at stop sign too. I ended up changing the dct transfluid (had planned to do that anyway). I havent seen it since.
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      02-09-2024, 10:36 PM   #9
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Originally Posted by Mdriv3r View Post
I had this happen once and it went away at a stop sign. I think I power cycled at stop sign too. I ended up changing the dct transfluid (had planned to do that anyway). I havent seen it since.
Dealer diagnosed faulty valvetronics which thankfully is covered under warranty. The battery also being replaced since it's "aged" according to the service technician.
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