First sign of DCT issue?

MrGatsby · 02-14-2019, 03:51 PM

Hi all,

I was pulling from a stop pretty aggressively in S4 mode and shifted into 2nd at around 6k rpm, all went well. From 2nd to 3rd I was on the throttle heavily and shifted at around 7k rpm. I felt and heard a clunk far worse than the typical shift coming from underneath and there was quite a bit of lag prior to the shift completing. Perhaps 2-3 seconds before it engaged 3rd with a thud. I took it easy for the rest of my drive and haven't had the issue again. But I am a bit concerned as this could be the first sign of an issue. has anyone run in to this? I'd like to be as proactive as possible at correcting it.

I also have the Dinan DCT tune if that matters.

kyippee · 02-14-2019, 03:59 PM

That's how it felt for me on track when I had DCT issues. Replaced with Slon Workshop baffled DCT bottom pan and all is good now. Issue was transmission oil sloshing around and eventually limp mode for loss of oil pressure. (error codes reflected it)

Your situation is on street, so it's different. Perhaps your DCT oil is low? May be similar loss of pressure.

MrGatsby · 02-14-2019, 04:18 PM

Quote:

Originally Posted by kpewpew

That's how it felt for me on track when I had DCT issues. Replaced with Slon Workshop baffled DCT bottom pan and all is good now. Issue was transmission oil sloshing around and eventually limp mode for loss of oil pressure. (error codes reflected it)

Your situation is on street, so it's different. Perhaps your DCT oil is low? May be similar loss of pressure.

I certainly hope its simply low DCT oil. I will have to get it checked asap. Thanks for the response!

wfdeacon88 · 02-14-2019, 04:35 PM

Intersecting.. how many miles OP? I just clocked 100K and have had some oddities start as well. guess I need to schedule a DCT oil change also. Is the labor pretty intense for this? Any benchmark cost estimates?

MrGatsby · 02-14-2019, 04:36 PM

Quote:

Originally Posted by wfdeacon88

Intersecting.. how many miles OP? I just clocked 100K and have had some oddities start as well. guess I need to schedule a DCT oil change also. Is the labor pretty intense for this? Any benchmark cost estimates?

Only at 58k miles on mine. I'm not too sure on cost for this, I'll have to do some research.

wfdeacon88 · 02-14-2019, 04:39 PM

Quote:

Originally Posted by MrGatsby

Quote:

Originally Posted by wfdeacon88

Intersecting.. how many miles OP? I just clocked 100K and have had some oddities start as well. guess I need to schedule a DCT oil change also. Is the labor pretty intense for this? Any benchmark cost estimates?

Only at 58k miles on mine. I'm not too sure on cost for this, I'll have to do some research.

ugh.. looks like parts alone are ~500.. but maybe this isn't the same exact service. https://www.ecstuning.com/b-assemble...xoCWUMQAvD_BwE

kyippee · 02-14-2019, 05:23 PM

Quote:

Originally Posted by wfdeacon88

Quote:

Originally Posted by MrGatsby

Quote:

Originally Posted by wfdeacon88

Intersecting.. how many miles OP? I just clocked 100K and have had some oddities start as well. guess I need to schedule a DCT oil change also. Is the labor pretty intense for this? Any benchmark cost estimates?

Only at 58k miles on mine. I'm not too sure on cost for this, I'll have to do some research.

ugh.. looks like parts alone are ~500.. but maybe this isn't the same exact service. https://www.ecstuning.com/b-assemble...xoCWUMQAvD_BwE

If you do it, get the Slon DCT bottom pan. The stock one will fail again.

amrazM · 02-14-2019, 09:26 PM

Quote:

Originally Posted by kpewpew

If you do it, get the Slon DCT bottom pan. The stock one will fail again.

Yup slon bottom pan plus the side pan will keep the unit sealed forever.

roastbeef · 02-14-2019, 09:33 PM

are you sure it wasn't wheel hop and traction control stepping in? was the ground wet or significantly cold?

wyatth · 02-15-2019, 12:48 AM

Quote:

Originally Posted by amrazM

Yup slon bottom pan plus the side pan will keep the unit sealed forever.

Until the lines on top start leaking. lol

amrazM · 02-15-2019, 02:40 AM

Quote:

Originally Posted by wyatth

Until the lines on top start leaking. lol

It’s always gotta be something eh

bmwfst1 · 02-15-2019, 12:03 PM

The pans start leaking on the duct eventually. It will doa bunch of weird things when low on oil. When I discovered my leak and fixed it I only drained about 8 quarts of oil out. The DCT takes about 14.

amrazM · 02-21-2019, 02:41 AM

Quote:

Originally Posted by bmwfst1

The pans start leaking on the duct eventually. It will doa bunch of weird things when low on oil. When I discovered my leak and fixed it I only drained about 8 quarts of oil out. The duct takes about 14.

uwotm8

bigjae1976 · 02-28-2019, 03:09 PM

I get the occassional clunk or weird shift but I don't worry about it. Not unless it happens again.

MrGatsby · 02-28-2019, 03:16 PM

Quote:

Originally Posted by bigjae1976

I get the occassional clunk or weird shift but I don't worry about it. Not unless it happens again.

Yeah, it hasn't happened again since. I am not too worried.

wfdeacon88 · 02-28-2019, 03:58 PM

I found out my DCT was 2 qts low on oil since I've owned the car... topped it off (until I get it fixed) and all of my issues are gone. Even cold start driving is silky smooth.... all of the cold jerking and occasional bangs/jerks are gone. Check your fluids if yours is jerky, because some stickied thread that said it was normal made me not realize I was really close to ruining my DCT.

02-14-2019, 03:51 PM	#1
MrGatsby Second Lieutenant 348 Rep 203 Posts Drives: E92 M3 Join Date: Sep 2018 Location: M town iTrader: (1) Garage List 2009 E92 M3 [0.00]	First sign of DCT issue? Hi all, I was pulling from a stop pretty aggressively in S4 mode and shifted into 2nd at around 6k rpm, all went well. From 2nd to 3rd I was on the throttle heavily and shifted at around 7k rpm. I felt and heard a clunk far worse than the typical shift coming from underneath and there was quite a bit of lag prior to the shift completing. Perhaps 2-3 seconds before it engaged 3rd with a thud. I took it easy for the rest of my drive and haven't had the issue again. But I am a bit concerned as this could be the first sign of an issue. has anyone run in to this? I'd like to be as proactive as possible at correcting it. I also have the Dinan DCT tune if that matters.
	Appreciate 0 Tweet Quote

02-14-2019, 03:59 PM	#2
kyippee Lieutenant Colonel 1072 Rep 1,617 Posts Drives: E92 M3, Supra MK5, F44 235GC Join Date: Feb 2017 Location: SF Bay Area iTrader: (0)	That's how it felt for me on track when I had DCT issues. Replaced with Slon Workshop baffled DCT bottom pan and all is good now. Issue was transmission oil sloshing around and eventually limp mode for loss of oil pressure. (error codes reflected it) Your situation is on street, so it's different. Perhaps your DCT oil is low? May be similar loss of pressure.
	Appreciate 1 BayE301341.00 Quote

02-14-2019, 04:35 PM	#4
wfdeacon88 Major 1105 Rep 1,389 Posts Drives: E90 M3 Join Date: Sep 2018 Location: Triad, NC iTrader: (0)	Intersecting.. how many miles OP? I just clocked 100K and have had some oddities start as well. guess I need to schedule a DCT oil change also. Is the labor pretty intense for this? Any benchmark cost estimates?
	Appreciate 0 Quote

02-14-2019, 09:33 PM	#9
roastbeef Lieutenant General 11585 Rep 12,725 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	are you sure it wasn't wheel hop and traction control stepping in? was the ground wet or significantly cold? __________________ Instagram; @roastbeefmike
	Appreciate 0 Quote

02-15-2019, 12:03 PM	#12
bmwfst1 Pwrdbym 60 Rep 343 Posts Drives: red 2010 bmwm3 Join Date: Jan 2016 Location: maryland iTrader: (0)	The pans start leaking on the duct eventually. It will doa bunch of weird things when low on oil. When I discovered my leak and fixed it I only drained about 8 quarts of oil out. The DCT takes about 14. Last edited by bmwfst1; 02-22-2019 at 10:52 AM..
	Appreciate 0 Quote

02-28-2019, 03:09 PM	#14
bigjae1976 Major General 1570 Rep 8,075 Posts Drives: 11 E90 M3 Individual Join Date: Mar 2006 Location: Houston, TX iTrader: (22) Garage List 2004 BMW M3 [4.50] 2011 BMW E90 M3 [5.25] 2013 BMW 328i [5.00]	I get the occassional clunk or weird shift but I don't worry about it. Not unless it happens again. __________________ 2018 F30 320iX Melbourne Red 2011 E90 M3 Monte Carlo Blue 2004 E46 M3 Imola Red 2000 E36/7 Z3 Steel Blue
	Appreciate 0 Quote

02-28-2019, 03:58 PM	#16
wfdeacon88 Major 1105 Rep 1,389 Posts Drives: E90 M3 Join Date: Sep 2018 Location: Triad, NC iTrader: (0)	I found out my DCT was 2 qts low on oil since I've owned the car... topped it off (until I get it fixed) and all of my issues are gone. Even cold start driving is silky smooth.... all of the cold jerking and occasional bangs/jerks are gone. Check your fluids if yours is jerky, because some stickied thread that said it was normal made me not realize I was really close to ruining my DCT.
	Appreciate 0 Quote