DCT rolls forward in park

ferocity02 · 09-19-2019, 04:18 AM

When my car is running in park in the garage (or.any flat surface) without the parking brake on the car will roll forward like the clutches are dragging. It will do this in a rocking pulsing fashion where it will roll forward and stay for 4 seconds then release and roll back, then repeat indefinitely. Seems to be worse when cold. Doesnt do this in neutral. There is a slight but noticeable change in the engine tone when this happens.

Anyone know what this is? Anything to be worried about?

2013 135is DCT, 54k miles

EDIT: did some searching and found several others with the same issue and reported it as normal, apparently it's the trans doing an internal check or calibration.

mKilgore · 09-19-2019, 09:30 AM

I've noticed mine doing that too.

6ixSpd · 10-03-2019, 09:34 PM

Mine did that too when I bought it. I flashed the 135iS DCT tune, cleared all adaptations and also re-learned the clutch plate torque values through ISTA.

Zero issues since. No RPM sueges with the AC on when coming to a stop, either.

09-19-2019, 04:18 AM	#1
ferocity02 Colonel 530 Rep 2,083 Posts Drives: 2013 135is Join Date: May 2014 Location: USA iTrader: (8)	DCT rolls forward in park When my car is running in park in the garage (or.any flat surface) without the parking brake on the car will roll forward like the clutches are dragging. It will do this in a rocking pulsing fashion where it will roll forward and stay for 4 seconds then release and roll back, then repeat indefinitely. Seems to be worse when cold. Doesnt do this in neutral. There is a slight but noticeable change in the engine tone when this happens. Anyone know what this is? Anything to be worried about? 2013 135is DCT, 54k miles EDIT: did some searching and found several others with the same issue and reported it as normal, apparently it's the trans doing an internal check or calibration. __________________ 2013 135is DCT Carbon Black Metallic Last edited by ferocity02; 09-19-2019 at 04:28 AM..
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09-19-2019, 09:30 AM	#2
mKilgore Second Lieutenant 172 Rep 215 Posts Drives: F82 M4 Join Date: Aug 2017 Location: Nashville, TN iTrader: (1)	I've noticed mine doing that too.
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10-03-2019, 09:34 PM	#3
6ixSpd Save the manuals! 6012 Rep 6,742 Posts Drives: '16 M3, '23 718 Spyder Join Date: Feb 2016 Location: 416 iTrader: (4)	Mine did that too when I bought it. I flashed the 135iS DCT tune, cleared all adaptations and also re-learned the clutch plate torque values through ISTA. Zero issues since. No RPM sueges with the AC on when coming to a stop, either. __________________ '16 M3 \| '23 718 Spyder Past: E92 M3, F87 M2, E39 M5, etc
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