DCT slipping with lots of Torque? Nope!

BQTuning · 12-21-2013, 11:49 AM

In support of @DesertDude here is a video of a 2013 335is DCT displaying the "Sport Traction" .

Again, I will ask the question one more time to confirm. Those of you not seeing "Traction" displayed are you running a piggyback (not in pass through mode) on your DCT 335is car ?

stupordave · 12-21-2013, 01:08 PM

No piggyback here. Just running a COBB PTF tune but the display setup is different on the dash. Pushing spot shows the word "sport" on the dash but a single push of the DTC button is indicated by a warning triangle. My car is a midyear 2011 build.

BQTuning · 12-21-2013, 01:21 PM

Quote:

Originally Posted by stupordave

No piggyback here. Just running a COBB PTF tune but the display setup is different on the dash. Pushing spot shows the word "sport" on the dash but a single push of the DTC button is indicated by a warning triangle. My car is a midyear 2011 build.

What ROM do you have ? My car was produced in March 2011. I am currently on ILAOS IS

stupordave · 12-21-2013, 11:08 PM

Quote:

Originally Posted by BuraQ

What ROM do you have ? My car was produced in March 2011. I am currently on ILAOS IS

Don't have the car with me at the moment but I think it is IJAOS IS.

rismo · 12-22-2013, 09:51 AM

Pops up the question if it would be possible to flash a N54 DCT car to IS firmware.
I have programmed some mini's to add the sports button, this was quite simple, but Im wondering if we could flash a N54 DCT spec car with all IS firmware (DME, DCT etc)

Any ideas?

romanonj · 12-22-2013, 01:46 PM

Tried the sequence of steps as buraq had showed in his video, still no sport traction mode. Car prod date may 2010 running Cobb ikbos is..

BQTuning · 12-22-2013, 02:32 PM

Quote:

Originally Posted by romanonj

Tried the sequence of steps as buraq had showed in his video, still no sport traction mode. Car prod date may 2010 running Cobb ikbos is..

I am not able to make sense out of all this why some cars are able to and others aren't. Production year and ROM seems to be not the issue. The ROM updates go as follows:

IJC0S IS
IJE0S IS
IKB0S IS
IKC0S IS
ILA0S IS

From the factory my car came with the IKB0S_IS ROM, then to IKC0S_IS > ILAOS_IS per dealer update as they became available . All these ROMs I had all displayed the "Sport Traction" feature

Having iDrive or not is not the issue either. So I am wondering if the difference may have anything to do with the factory assembly locations they came from ie different assembly locations had different components. IDK, but would like to know why the variance.

The scenario regardless should be applied to any N54 DCT car though even if yours is a variant of how to reduce slippage with your DCT

Edit: Another thing also came to mind, my car was not pre-ordered.

rismo · 12-22-2013, 09:23 PM

Compare your VO numbers... maybe it gives some indication....

Rezinator · 12-23-2013, 08:43 AM

I have a 2011 335is DCT IKCOS IS, will not show "Sport Traction", just warning message.

stupordave · 12-23-2013, 09:24 AM

Don't think it's a software thing. It has to be just different display templates. The indicators are just lighted so what you have is what you have unless you swap it for another template. I believe the functionality is the same.

BQTuning · 12-23-2013, 11:13 AM

Quote:

Originally Posted by stupordave

Don't think it's a software thing. It has to be just different display templates. The indicators are just lighted so what you have is what you have unless you swap it for another template. I believe the functionality is the same.

Thats what it seems to be, a "variant dash display" depending on what assembly location it came out of I assume.

Also, the letters DTC (button) vs the Traction Control "icon" (button), should all be the same with same function.

rismo · 12-23-2013, 12:57 PM

your dash icon is defined within the firmware of the dashboard/clocks/cockpit (Forgot the controller name). This can be noticed when a car from 07 gets updated to the latest software, the icon for DTC did change... So this is probably the same.

romanonj · 12-30-2013, 09:20 PM

Came across this kit at ecs tuning...

http://www.ecstuning.com/BMW-E92-335...Dct/ES2677651/

Has anyone considered servicing DCT yet? Mine is approaching 40k miles, 10 of which running Cobb aggressive tune and burning clutch a few times.. If anyone has done this service, what are the appropriate drain and refill steps?

Thanks!

BQTuning · 12-30-2013, 09:48 PM

Quote:

Originally Posted by romanonj

Came across this kit at ecs tuning...

http://www.ecstuning.com/BMW-E92-335...Dct/ES2677651/

Has anyone considered servicing DCT yet? Mine is approaching 40k miles, 10 of which running Cobb aggressive tune and burning clutch a few times.. If anyone has done this service, what are the appropriate drain and refill steps?

Thanks!

Yup, that would be me. Transmission is starting to seep oil in the sealing, not actually leaking yet, so I am going to need new new sealing + what you posted.

I got 56k miles of hard driving and I mean extreme hard driving

romanonj · 12-31-2013, 10:17 AM

Quote:

Originally Posted by BuraQ

Yup, that would be me. Transmission is starting to seep oil in the sealing, not actually leaking yet, so I am going to need new new sealing + what you posted.

I got 56k miles of hard driving and I mean extreme hard driving

Please post a DIY if you choose to do this yourself...

Happy new year all!

entrepreneur177 · 01-12-2014, 09:03 PM

There were some members it this thread intending to upgrade turbos... but NOONE posted ever since.... So does someone have experience with DCT and modded turbos?

Ofmalik · 07-23-2014, 03:11 AM

Quote:

Originally Posted by entrepreneur177

There were some members it this thread intending to upgrade turbos... but NOONE posted ever since.... So does someone have experience with DCT and modded turbos?

I've been running RB turbos on a 50/50 e85 mix with FBO's for about a year now, roughly 10k miles. I am running a Procede rev3 v5 and OFT backend flash, tuned by Shiv himself, and get quite a bit of clutch slippage at WOT deep into 4th gear and in any gear above. I've talked to a few of the other 335is owners on here and they attribute this to my DME not seeing true TQ values due to the piggy tune. I purchased the car new and it currently has 22k miles on it. It's been launched no more than 10x and has never seen the track and so I rule out abuse as the cause. I'm going to be switching back to COBB with a ProTune next week. Fingers crossed.

On a different note, I have yet to launch the car since the RB turbos and switch to e85... I fear that I'll destroy my transmission. Any thoughts?

Ramjet · 09-05-2014, 07:36 AM

Quote:

Originally Posted by DesertDude

I have adjusted my High and Low torque request % tables so that D + Sport Button On has a more aggressive throttle, firm shifts, but keeps revs lower.

How did you adjust this?

iuhutch · 10-03-2014, 05:46 PM

Quote:

Originally Posted by Ofmalik

I've been running RB turbos on a 50/50 e85 mix with FBO's for about a year now, roughly 10k miles. I am running a Procede rev3 v5 and OFT backend flash, tuned by Shiv himself, and get quite a bit of clutch slippage at WOT deep into 4th gear and in any gear above. I've talked to a few of the other 335is owners on here and they attribute this to my DME not seeing true TQ values due to the piggy tune. I purchased the car new and it currently has 22k miles on it. It's been launched no more than 10x and has never seen the track and so I rule out abuse as the cause. I'm going to be switching back to COBB with a ProTune next week. Fingers crossed.

On a different note, I have yet to launch the car since the RB turbos and switch to e85... I fear that I'll destroy my transmission. Any thoughts?

2013 135i n55 DCT w PURE turbo upgrade. Started experiencing what feels to be clutch slippage. I too am running piggyback and my DME is not crack able do to new stupid NSA encryption. Buddy has similar setup with the backend flash stacked w jb4 and his bangs into gears. My logs are weird tho as the throttle body is being closed? Does the TCu see slippage and talk to the DME to chop throttle? It's odd.

Does anyone know if I have any options here? I need to tell or force the TCu to see full max load!

Cloud9blue · 10-03-2014, 07:44 PM

Quote:

Originally Posted by iuhutch

2013 135i n55 DCT w PURE turbo upgrade. Started experiencing what feels to be clutch slippage. I too am running piggyback and my DME is not crack able do to new stupid NSA encryption. Buddy has similar setup with the backend flash stacked w jb4 and his bangs into gears. My logs are weird tho as the throttle body is being closed? Does the TCu see slippage and talk to the DME to chop throttle? It's odd.

Does anyone know if I have any options here? I need to tell or force the TCu to see full max load!

any wheel spins? if not, with the erratic rpms that you got on that graph, the DCT is definitely slipping.

BQTuning · 10-03-2014, 09:50 PM

Quote:

Originally Posted by iuhutch

.....Does the TCu see slippage and talk to the DME to chop throttle? It's odd.

Does anyone know if I have any options here? I need to tell or force the TCu to see full max load!

Nope cause it think its running a load to torque that its not, so it will pull timing to compensate for the overheating tranmission due to slippage. Sometimes it happens so fast there is no time for the DME to "figure out" what going on the next thing your know your engine is blown.

_ink · 10-04-2014, 12:00 AM

335i 2009 DCT, FBO, meth, e40, RB turbo's, stacked JB4 + Cobb here.

I couldn't find much on RB's with DCT either, only done 5000kms and so far all is good.

View Poll Results: Does your DCT slip and/or Have Problems with 400tq+ ?
I have a DCT with 400tq+ and my clutch slips (I HAVE abused my transmission)	17	18.09%
I have a DCT with 400tq+ and my clutch slips (I have NOT abused my transmission)	18	19.15%
I have a DCT with 400tq+ and NO problems with my transmission (I HAVE abused my transmission)	29	30.85%
I have a DCT with 400tq+ and NO problems with my transmission (I have NOT abused my transmission)	30	31.91%
Voters: 94. You may not vote on this poll

12-21-2013, 11:49 AM	#67
BQTuning Banned 469 Rep 4,392 Posts Drives: 2012 Z4 sDrive35i M Sport 6MT Join Date: Nov 2010 Location: bq@bqtuning.com iTrader: (0)	In support of @DesertDude here is a video of a 2013 335is DCT displaying the "Sport Traction" . Again, I will ask the question one more time to confirm. Those of you not seeing "Traction" displayed are you running a piggyback (not in pass through mode) on your DCT 335is car ?
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12-21-2013, 01:08 PM	#68
stupordave Second Lieutenant 15 Rep 236 Posts Drives: 2011 335is Join Date: Sep 2011 Location: Golden, CO iTrader: (1)	No piggyback here. Just running a COBB PTF tune but the display setup is different on the dash. Pushing spot shows the word "sport" on the dash but a single push of the DTC button is indicated by a warning triangle. My car is a midyear 2011 build. __________________ 2011 TiAg 335is -->2015 Range Rover Sport
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12-22-2013, 09:51 AM	#71
rismo Captain 75 Rep 911 Posts Drives: BMW E92 335 Join Date: Jul 2008 Location: Europe iTrader: (0)	Pops up the question if it would be possible to flash a N54 DCT car to IS firmware. I have programmed some mini's to add the sports button, this was quite simple, but Im wondering if we could flash a N54 DCT spec car with all IS firmware (DME, DCT etc) Any ideas? __________________ BMW 335 E92 09 - Full options - DKG - MHD by Buraq - RB Next Gen - RB Inlets/Outlet - Forge Diverter Valves - AR Catless DP - Afe Intake - Helix IC - FuelIT Stage 2 LPFP - Ar Oil Cooler - PPK Water Cooler - M3 Suspension - JRZ RS1 Shocks - Eibach Pro Springs - Drexler LSD - BMW IS Exhaust - Carbon Endurance Brake Pads - Stainless Steel Brake Lines - M101 Wheels - Michelin PS2 - M-Tech Body - M-Strutbar BMW M550i G30 2019 - BM3
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12-22-2013, 01:46 PM	#72
romanonj Major 145 Rep 1,319 Posts Drives: F80 DCT Join Date: Jan 2012 Location: New Jersey, Ocean County iTrader: (18)	Tried the sequence of steps as buraq had showed in his video, still no sport traction mode. Car prod date may 2010 running Cobb ikbos is.. __________________ 2016 F80 M3 BSM with Black interior DCT/Driver Assistance/Executive/LEDs/Adaptive/Black Wheels 2014 F32 435i xDrive AW/CR 2014 F25 X3 M-Sport Carbon Black 2011 e92 335is 2007 X3 122k miles 2006 e90 330i 132k miles
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12-22-2013, 09:23 PM	#74
rismo Captain 75 Rep 911 Posts Drives: BMW E92 335 Join Date: Jul 2008 Location: Europe iTrader: (0)	Compare your VO numbers... maybe it gives some indication.... __________________ BMW 335 E92 09 - Full options - DKG - MHD by Buraq - RB Next Gen - RB Inlets/Outlet - Forge Diverter Valves - AR Catless DP - Afe Intake - Helix IC - FuelIT Stage 2 LPFP - Ar Oil Cooler - PPK Water Cooler - M3 Suspension - JRZ RS1 Shocks - Eibach Pro Springs - Drexler LSD - BMW IS Exhaust - Carbon Endurance Brake Pads - Stainless Steel Brake Lines - M101 Wheels - Michelin PS2 - M-Tech Body - M-Strutbar BMW M550i G30 2019 - BM3
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12-23-2013, 08:43 AM	#75
Rezinator Second Lieutenant 38 Rep 255 Posts Drives: 335is Join Date: Aug 2013 Location: NE iTrader: (1)	I have a 2011 335is DCT IKCOS IS, will not show "Sport Traction", just warning message.
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12-23-2013, 09:24 AM	#76
stupordave Second Lieutenant 15 Rep 236 Posts Drives: 2011 335is Join Date: Sep 2011 Location: Golden, CO iTrader: (1)	Don't think it's a software thing. It has to be just different display templates. The indicators are just lighted so what you have is what you have unless you swap it for another template. I believe the functionality is the same. __________________ 2011 TiAg 335is -->2015 Range Rover Sport
	Appreciate 0 Quote

12-23-2013, 12:57 PM	#78
rismo Captain 75 Rep 911 Posts Drives: BMW E92 335 Join Date: Jul 2008 Location: Europe iTrader: (0)	your dash icon is defined within the firmware of the dashboard/clocks/cockpit (Forgot the controller name). This can be noticed when a car from 07 gets updated to the latest software, the icon for DTC did change... So this is probably the same. __________________ BMW 335 E92 09 - Full options - DKG - MHD by Buraq - RB Next Gen - RB Inlets/Outlet - Forge Diverter Valves - AR Catless DP - Afe Intake - Helix IC - FuelIT Stage 2 LPFP - Ar Oil Cooler - PPK Water Cooler - M3 Suspension - JRZ RS1 Shocks - Eibach Pro Springs - Drexler LSD - BMW IS Exhaust - Carbon Endurance Brake Pads - Stainless Steel Brake Lines - M101 Wheels - Michelin PS2 - M-Tech Body - M-Strutbar BMW M550i G30 2019 - BM3
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12-30-2013, 09:20 PM	#79
romanonj Major 145 Rep 1,319 Posts Drives: F80 DCT Join Date: Jan 2012 Location: New Jersey, Ocean County iTrader: (18)	Came across this kit at ecs tuning... http://www.ecstuning.com/BMW-E92-335...Dct/ES2677651/ Has anyone considered servicing DCT yet? Mine is approaching 40k miles, 10 of which running Cobb aggressive tune and burning clutch a few times.. If anyone has done this service, what are the appropriate drain and refill steps? Thanks! __________________ 2016 F80 M3 BSM with Black interior DCT/Driver Assistance/Executive/LEDs/Adaptive/Black Wheels 2014 F32 435i xDrive AW/CR 2014 F25 X3 M-Sport Carbon Black 2011 e92 335is 2007 X3 122k miles 2006 e90 330i 132k miles
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01-12-2014, 09:03 PM	#82
entrepreneur177 из Кремля 15 Rep 164 Posts Drives: Z4 35s, CLS63 AMG Join Date: Nov 2010 Location: Los Angeles \/ Moscow iTrader: (0)	There were some members it this thread intending to upgrade turbos... but NOONE posted ever since.... So does someone have experience with DCT and modded turbos?
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10-04-2014, 12:00 AM	#88
_ink Jedi samurai ninja turtle 619 Rep 3,021 Posts Drives: X3 M40i 2018 Join Date: May 2012 Location: Sydney, Australia iTrader: (0) Garage List 2018 X3 M40i [0.00]	335i 2009 DCT, FBO, meth, e40, RB turbo's, stacked JB4 + Cobb here. I couldn't find much on RB's with DCT either, only done 5000kms and so far all is good.
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