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12-19-2023, 12:52 PM | #1 |
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DCT stalling when engaging drive or reverse
So this is what’s happening on my
2012 e92 m3 DCT 67k miles Car turns on fine Push gear selector to drive or reverse and cars lurches forward and stalls out Exactly like dumping the clutch in a manual and stalling Leave the car off for a couple minutes for it to completely shut off Turn it back on and it’s fine plugged in the scanner and no codes were stored Car has gts trans tune but I’ve had it on there for 2 months no issues just happened the other day If you have an idea of what it may be let me know! The only thing I found online that was remotely similar ended up being a ground wire from the engine to the oil pan? But I have no idea Please help! |
02-06-2024, 08:43 AM | #2 |
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Bump did a transmission service and the car ran fine for a month or two and now it did it again push car to drive car lurches forward stalls
Turn on Push car into reverse car lurches back and stalls Any ideas? |
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02-06-2024, 09:06 AM | #3 |
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Drives: '08 E92 M3
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The DCT fluid level maybe quite low. Get the car up on the lift with the car warm and up to normal operating temperature. Check the DCT fluid level using the established BMW procedure. Search the forums for the DCT fluid check and fill procedure. It can take quite sometime to get the DCT properly filled with the engine idling (if I recall correctly). The DCT clutches are wet clutches inside a basket and depend upon the correct DCT fluid level for smooth operation. The DCT maybe leaking fluid from the mechatronics side cover, or the loom "O" ring on the top of the gearbox, or the pan gasket corner (or all of the above). Over time enough fluid will leak out that operation becomes clunky and or the DCT will overheat. Try all of the above first before going back to OEM DCT software.
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02-06-2024, 10:10 AM | #4 | |
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alternatively, use ISTA to do a clutch pack relearn.
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03-16-2024, 10:50 PM | #5 |
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Update, had a faulty trans pan from fall line Motorsport they sent over another one.
transmission service completed again no visible leaks and car is still experiencing same symptoms No codes either my only option is to flash the ECU back to stock as well as the dct and see if that fixed it If anyone has any other ideas I’m all ears Thanks! |
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03-16-2024, 10:52 PM | #6 | |
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03-16-2024, 10:54 PM | #7 |
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Yes proper dct fill procedure was done
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03-16-2024, 11:04 PM | #8 |
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clutch pack re-learn? Dct adaptation reset?
did you check your engine grounding cable? battery swap? bringing the last 2 up, because a friend experienced DCT doing the same thing at the track, and we ended up charging his battery and it resolved everything. make sure it's running around 13V.. you would also have a lot of warnings if your clutch packs were slipping as well.. so we can somewhat rule that out. alternatively.. there is 2 items in the DCT that does need to be serviced IMO. the low pressure pump and the jet pump...
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03-16-2024, 11:20 PM | #9 | |
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I will check the batter alternator and grounding cable as I feel as if it has to be electrical or software related as It happens very scarcely When it does happen i turn the car back on and off again and wait until I hear these electrical clicking sounds by the dash as if the car is completely going to sleep as soon as the car does that I turn it back on and it goes into gear and drives fine every single time |
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03-16-2024, 11:24 PM | #10 | |
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03-16-2024, 11:26 PM | #11 |
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I’ll go ahead and do that too thanks for the help man I’ll report back when I have more info
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05-03-2024, 06:27 PM | #12 |
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Hey guys so I reflashed the dct tune and everything seemed to be good to go for a couple months then the car stalls again today this time I did get a code but no check engine light
I attached the image of the code any ideas? |
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