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BMW 3-Series (E90 E92) Forum
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Dct transmission replacement
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01-13-2013, 09:14 PM | #1 |
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Dct transmission replacement
Fyi http://realoem.com/bmw/showparts.do?...00&hg=28&fg=05
10k to replace according to real oem, keep that in mind next time using launch control! Manual Is $4500 http://realoem.com/bmw/showparts.do?...26&hg=23&fg=05
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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 |
01-13-2013, 10:32 PM | #2 |
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http://www.sspperformance.com/produc...lutch-upgrade/
So far I have done 200+ launches on my 335is with 30K miles and its still holding strong with consistent ET AT moment no one with a 335is has been in the need to replace or upgrade their clutches but when that time comes I am sure they would seek out SSP rather than paying 10k for a TM |
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01-14-2013, 03:33 AM | #3 |
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You can't use the SSP clutch packs... For that you need control of the software. Otherwise the changes that you harm you gearbox are bigger then that they will be solved.
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01-14-2013, 07:09 AM | #4 | |
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Quote:
Your statement is true but its only factual with the DCT M3 with the SSP harder clutch packs. The DCT controller is not programmed the same in the M3 and 335is the controller is programmed to with stand much more torque in the 335is than in the M3. the reference I made about is to SSP softer clutch pack not the hard clutch pack designed for dedicated drag and race applications so at this time no one knows what the affects of the softer clutches on the 335is will conclude. currently when they have been installed we will have to reset the DCT controller to relearning to be able to determine the outcome we will know soon though |
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01-14-2013, 07:37 AM | #5 | |
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Same would hold true with the DCT just replace what is worn out. I don’t use launch control as a matter of driving style not any concern about the DCT itself failing. Looking forward to what BuraQ's experience is when he rebuilds the clutches. Not that there is a direct correlation, just food for thought, but I just finished rebuilding the clutch, transmission, transfer case & drive shafts on my Ranger 4X4 & IIRC have less the $600 in parts + my free labor.
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01-14-2013, 11:19 AM | #6 | |
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To be honest I changed my scope from an AT project to a DKG project. At the moment I have made a plan of approach to get into the mechatronic. (Software is my work/company) The story is that the mechatronic fimware encryption key is not out in the market, period, brute force is quite a bit of werk as they use a 1024 bit key. For that we can not load new software but the mechantronic seems to use the ASAM platform (Google -> ASAM + Embedded). The road to succes is to find a way to adjust the mechatronic bootloader with a custom one, where the encryption (+checks) are taken out. After that we will be able to load new stuff, custom stuff. I actually filed a resource request on some Indian IT websites to see if I can find some freelancer to help with this. The same story more or less applies to the AT gearbox. Yes adapation can do some work, but still if the values of the box somehow do not fit with the clutch specs I'm afraid you will run into other issues, besides having the adaption done well. But I'm extremly interested to see what the outcome is, altough at this moment I would not go that road myself in al honesty, but if I can help somehow, not a problem. My 500+ WHP RB car will be ready end of next week and I hope the best for my DKG :-D
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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
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01-14-2013, 01:55 PM | #7 |
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My only point was its expensive to replace if god forbid you need new one. I am not sure if I would be comfortable rebuilding this transmission, and probably not too many places are competent enough to work on DCTs. How much more complex are these transmissions vs. lets say steptronic?
On a positive note, I dont think I have heard of any DCT failures yet.. THis is the same transmission BMW has been putting in M3 since 2008. So they must have got it right..
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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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