05-25-2020, 08:20 PM | #1 |
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B58 Lurching Upon Shift When Cold
B58 crew with ZF8 speed tranny -
I am experiencing a very noticeable lurch when accelerating past 3500rpm in sport+ mode when car is cold. Lurch happens upon first and second gear changes. Anyone else feel something similar? |
05-25-2020, 09:00 PM | #2 |
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Let your shit warm up...
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05-25-2020, 09:41 PM | #6 |
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6MT, but I never shift past 2.5k when it's cold. Really not past 2k when it's really cold for the first minute or so of driving. I also let it sit for at least a minute on startup. My gearbox is notchy AF when cold, and I would expect the ZF8 to not be performing the best either. Let your shit warm up lol.
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Supr3me551.00 imperfectluck425.00 |
05-26-2020, 01:49 PM | #7 |
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Make sure your fluid is topped up, otherwise yes let your car warm up.
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05-26-2020, 02:48 PM | #8 |
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Not saying to sit in comfort mode all the time but unless you're in Sport+ and in manual shifting mode to keep your shift RPMs low as everyone else mentioned, do try to avoid Sport and Sport+ as the DME will keep the RPMs high and that isn't ideal while your car is still warming up.
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05-26-2020, 03:09 PM | #9 |
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I have a similar issue, notably at slow speeds like in my apartment's parking garage between 1-2 shifts. Doesn't feel smooth, 2016 340i at 38k miles. I will probably change the tranny fluid soon to see if that helps.
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05-29-2020, 07:47 AM | #11 |
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Have the same, tried fluid too, did not help. Adaptations reset, did not help. Throttle reset, did not help. Tranny flash to xHP, did not help. Thinking about maybe having a ZF shop change out the solenoids...
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