DCT acting funky

aswy6 · 05-31-2018, 11:03 PM

Hey guys, need some opinion here. My DCT has been doing some random things once in a while. So, first of all i should mention that Deansbimmer found a leak in my side gasket but from what it sounds like, its not critical and can be addressed some time this year. The car also just hit 80k miles. So here are a couple of concerns.

1) In D mode, it never downshifts to the 1st gear, it always stays in D2 even when the car is not moving. From what i heard its not normal but i bought the car this way and never knew any different.

2) Today i was getting on the highway ramp and just dropped to manual to shift around 3k rpm. Once i got to 60+ mph, i dropped it into D again and it went to D4 and i was like WTF did i do???!!! I went back into manual, shifted to 7th again, put it in D again and it stayed in D7.

The car does not have DCT software, all stock software. I was going to try launch control this weekend to race my friends M5 but now questioning whether or not i should do it. Thoughts?

msan · 05-31-2018, 11:04 PM

Get the fluid swapped out and filled. I'm guessing you are low on fluid from the leak.

Scrippy · 05-31-2018, 11:21 PM

Bro what shift level are you in? Sounds like you're using the lowest setting (1) which always starts in 2nd gear. It also wants to shift to 7th gear as soon as possible. Shift mode 2 and up start in 1st gear.

Timujin · 05-31-2018, 11:58 PM

I roll in D shift mode 1 and 2nd gear starts are normal.

deansbimmer · 06-01-2018, 08:21 AM

I could have sworn you were in Drivelogic 3 when I was in your car. If you are in 1 then try changing it up and see how it behaves. You can also change its default in iDrive under the M-Mode settings.

aswy6 · 06-01-2018, 08:27 AM

Quote:

Originally Posted by deansbimmer

I could have sworn you were in Drivelogic 3 when I was in your car. If you are in 1 then try changing it up and see how it behaves. You can also change its default in iDrive under the M-Mode settings.

Im pretty sure im on the lowest level when in automatic mode. Today i put it in Drivelogic 2 and it was starting from the 1st gear, so that problem solved

Now, does the deal with 4th gear make sense to you? Im starting to think to get a DCT tune.

deansbimmer · 06-01-2018, 08:56 AM

If it does it repeatedly then look into it. The DCT does occasional strange things according to its adaptive nature.

aswy6 · 06-01-2018, 09:44 AM

Quote:

Originally Posted by deansbimmer

If it does it repeatedly then look into it. The DCT does occasional strange things according to its adaptive nature.

Sounds good! Thank you

05-31-2018, 11:03 PM	#1
aswy6 Captain 291 Rep 769 Posts Drives: 2016 BMW M3 Join Date: Jan 2017 Location: Austin, TX iTrader: (1)	DCT acting funky Hey guys, need some opinion here. My DCT has been doing some random things once in a while. So, first of all i should mention that Deansbimmer found a leak in my side gasket but from what it sounds like, its not critical and can be addressed some time this year. The car also just hit 80k miles. So here are a couple of concerns. 1) In D mode, it never downshifts to the 1st gear, it always stays in D2 even when the car is not moving. From what i heard its not normal but i bought the car this way and never knew any different. 2) Today i was getting on the highway ramp and just dropped to manual to shift around 3k rpm. Once i got to 60+ mph, i dropped it into D again and it went to D4 and i was like WTF did i do???!!! I went back into manual, shifted to 7th again, put it in D again and it stayed in D7. The car does not have DCT software, all stock software. I was going to try launch control this weekend to race my friends M5 but now questioning whether or not i should do it. Thoughts?
	Appreciate 0 Tweet Quote

05-31-2018, 11:04 PM	#2
msan Major 434 Rep 1,174 Posts Drives: 2011 E90 M3 Join Date: May 2015 Location: Los Angeles, CA iTrader: (16)	Get the fluid swapped out and filled. I'm guessing you are low on fluid from the leak.
	Appreciate 0 Quote

05-31-2018, 11:21 PM	#3
Scrippy Lord Scrip 2390 Rep 3,419 Posts Drives: 2011 M3 Coupe Join Date: Jan 2012 Location: LA,Ca iTrader: (0) Garage List [10.00] 2007 BMW 335i [10.00]	Bro what shift level are you in? Sounds like you're using the lowest setting (1) which always starts in 2nd gear. It also wants to shift to 7th gear as soon as possible. Shift mode 2 and up start in 1st gear. __________________
	Appreciate 0 Quote

05-31-2018, 11:58 PM	#4
Timujin Major 367 Rep 1,005 Posts Drives: GMC Sierra Join Date: Jul 2012 Location: California iTrader: (9) Garage List 2010 BMW M3 [0.00]	I roll in D shift mode 1 and 2nd gear starts are normal. __________________ We grow food to feed the animals so we can eat the animals
	Appreciate 0 Quote

06-01-2018, 08:21 AM	#5
deansbimmer BimmerPost Supporting Vendor 4324 Rep 3,023 Posts Drives: 2011 E93 M3 Join Date: Nov 2014 Location: DFW, Texas iTrader: (17) Garage List 1988 E30 M3 [0.00] 2006 E46 M3 [0.00] 2024 X7 M60i [0.00] 2011 BMW M3 [0.00]	I could have sworn you were in Drivelogic 3 when I was in your car. If you are in 1 then try changing it up and see how it behaves. You can also change its default in iDrive under the M-Mode settings.
	Appreciate 0 Quote

06-01-2018, 08:56 AM	#7
deansbimmer BimmerPost Supporting Vendor 4324 Rep 3,023 Posts Drives: 2011 E93 M3 Join Date: Nov 2014 Location: DFW, Texas iTrader: (17) Garage List 1988 E30 M3 [0.00] 2006 E46 M3 [0.00] 2024 X7 M60i [0.00] 2011 BMW M3 [0.00]	If it does it repeatedly then look into it. The DCT does occasional strange things according to its adaptive nature.
	Appreciate 1 aswy6290.50 Quote