DCT transmission clunk 2nd gear

RATED_M · 08-07-2020, 10:15 AM

Hello All -

I recently picked up a very clean 2011 E92 from another member. The car only has 51,000 miles and I even did a transmission fluid change at my local M performance shop (MNC Performance in NY).

I notice that when I'm rolling at a low RPM in 2nd gear and roll on/off the gas the car clunks and makes a sound. I took my local mechanic for a ride in the car and he thinks it could be the driveshaft coupling/flex disc. I suggested engine or tranny mounts but he doesn't think so.

Any thoughts?

brettcp · 08-09-2020, 11:04 AM

Could try replacing the tranny mounts, they're cheap ($44 total for both) and very easy to replace. I replaced mine at 105k miles and the old ones were definitely a softer than the new ones. There's a DIY here: https://www.m3post.com/forums/showthread.php?t=1264788

Pig Farmer · 08-09-2020, 11:52 AM

Just a thought... anytime you open up the transmission (e.g. fluid change, filter replacement, etc.) you are suppose to recalibrate the transmission/clutch. It’s a pretty simple process if you have a Foxwell code scanner or similar tool. It basically resets the clutch pickup and pressure. Shifts definately feel more precise after performing the calibration. You may want to ask the shop if they recalibrated the clutch, or find a buddy that has a Foxwell scanner. It takes about 2 minutes to perform the procedure.

08-07-2020, 10:15 AM	#1
RATED_M Major 43 Rep 185 Posts Drives: E92 M3 Comp Join Date: Jan 2012 Location: New York iTrader: (0)	DCT transmission clunk 2nd gear Hello All - I recently picked up a very clean 2011 E92 from another member. The car only has 51,000 miles and I even did a transmission fluid change at my local M performance shop (MNC Performance in NY). I notice that when I'm rolling at a low RPM in 2nd gear and roll on/off the gas the car clunks and makes a sound. I took my local mechanic for a ride in the car and he thinks it could be the driveshaft coupling/flex disc. I suggested engine or tranny mounts but he doesn't think so. Any thoughts? __________________ Current: 2011 Jet Black ///E92 M3 Comp DCT Previous: 2017 Yas Marina Blue ///M3 \| Silverstone \| DCT 2018 Citrin Black 340xi \| Dakota Black \| 8-Speed Auto
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08-09-2020, 11:04 AM	#2
brettcp Captain 348 Rep 702 Posts Drives: 2012 E93 M3 Join Date: Mar 2011 Location: So Cal iTrader: (2)	Could try replacing the tranny mounts, they're cheap ($44 total for both) and very easy to replace. I replaced mine at 105k miles and the old ones were definitely a softer than the new ones. There's a DIY here: https://www.m3post.com/forums/showthread.php?t=1264788
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08-09-2020, 11:52 AM	#3
Pig Farmer Major 340 Rep 1,293 Posts Drives: E92M Join Date: May 2010 Location: Florida iTrader: (0)	Just a thought... anytime you open up the transmission (e.g. fluid change, filter replacement, etc.) you are suppose to recalibrate the transmission/clutch. It’s a pretty simple process if you have a Foxwell code scanner or similar tool. It basically resets the clutch pickup and pressure. Shifts definately feel more precise after performing the calibration. You may want to ask the shop if they recalibrated the clutch, or find a buddy that has a Foxwell scanner. It takes about 2 minutes to perform the procedure.
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