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  1. #1
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    DIY Trans swap AT > DCT AT > Metch



    Dedicated steps to swap AT on DCT



    Part1 ( Hardware parts )


    -12 51 7 581 112 – wiring
    -83 22 2 147 477 - DCT Oil 8l.
    -51 16 9 141 518 - Cover center console
    -61 31 9 133 067 and 61 31 9 213 647 - gear selector
    -61 31 9 192 483 - park system for DCT
    -DCT Transmission ( from E9X/E89 n54 n55 )
    -DCT flywheel. Very important.
    -If you have 2009.01+ car you number is - 21 20 7 590 853 ( 6 bolts 11 22 7 520 706 )
    -If you have 2009.01 < car you number is - 21 20 7 593 469 ( 8 bolts 11 22 7 520 706 )
    The different about flywheel only in bolts pattern.
    -Rear differential 2.56


    Part2 ( ECU parts ) ( If you have 2008/09> just skip this part )


    MSD81 ECU (12 14 7 616 431 ) - if you have 2008/03 just skip this part
    DSC Pump (34 51 6 789 308 or 34 51 6 863 356 ) - if you have 2008/09 just skip this part
    DSC Sensor (34 52 6 780 334 or 34 52 6 850 375 ) - if you have 2008/09 just skip this part
    DSC Sensor plug (http://www.realoem.com/bmw/showparts...95&hg=34&fg=20 ) - if you have 2008/09 just skip this part
    I can’t find this part #17 . But I buy used harness from car 2009+ and get this plug from it.
    JBE2 or JBE3 ECU (61359286790 ) - if you have 2007/09 just skip this part
    DCT shift paddles or m3 shift paddles


    Part3 (harness to DCT Gear Selector )
    You have to do the wiring harness to DCT gear selector switch.
    Use this link to download scheme. ftp://share:share@ftp.corbina.net/DCT/
    You have to make and integrate the harness that is marked in blue.
    For this you must have parts
    4 pin jack plug 61 13 8 380 696
    2 pin jack plug 61 13 6 925 634
    and also 6 pins 61 13 0 005 197 - 6
    Also you need 10 pins pin jack plug. Unfortunately you can not buy it, you can do it yourself. You can buy a generic 10-pin connector on a spacing of 2.5 mm ( like this http://www.kosmodrom.com.ua/pic/HU-13.jpg )


    Click here to enlarge


    Part4 ( Replacing JBE ECU ) ( if you have 2007/09 > skip this part )
    You can find JBE ECU under the feet of the passenger seat.
    First you must replace it on JBE2 or JBE3 ECU (61359286790 ).
    After this you must integrate D-can bus line on new ECU. ( Old cars have K-line and new ECU will not work )
    Change pin on OBD2 socket
    7 to 14
    and put the additional wire between OBD2 socket pin 6 and JBE ( blue connector ) pin 17
    Click here to enlarge


    Part5 ( Replacing DSC ECU ) ( if you have 2008/09 > skip this part )
    Replace DSC unit on new.
    Replace DSC sensor on new. ( You can find DSC sensor under drive seat )
    Click here to enlarge
    Replace DSC Sensor Plug. The DSC sensor must be connect to DSC unit follows
    DSC UNIT > DSC Sensor
    39 > 4
    27 > 2
    11 > 3
    28 > 1
    After this you must calibrate you DSC unit and sensors. ( use bmw ISTA to do this ),
    you just need to pump the brakes.


    Part4 ( Replacing MSD80 on MSD 81 ) ( if you have 2008/03 > just program it )
    Replace you MSD80 on 81.
    Very important! you cann't use used MSD81 unit. you should buy it new
    Program it on Zub 7628524
    Do not forget to transfer the value of the injectors in the new MSD81.


    Part6 Programming and Coding
    I use NCS Expert and Win KFP to program and code my car
    Remove FA $205
    Remove value that starts # and Add #0909
    Add FA $2TC
    Make FA write on CAS and NFRM
    Code ECU: MSD81/CAS/Kombi/IHK/JBFE/NFRM/GWS
    Program MSD81 on Zub 7628524
    Program GS40 on Zub 7600042
    Update you Kombi/NFRM/GWS


  2. #2
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    AT > MT Scheme

    AT > MT process much easy.
    Use this link to download wire scheme ftp://share:share@ftp.corbina.net/DCT/
    You need following parts
    Rear differential
    cardan shaft
    MT Trans with clutch parts.
    Flywheel
    Pedal block from MT
    Clutch module
    When you finish swap, you must remove FA $205 form CAS and NFRM module and coding:
    CAS/FRM/KOMBI/DSC/DME blocks. I use NCS Expert to done this.
    Last edited by ncat10; 01-16-2014 at 06:46 AM.

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    Well done man, well done.

    Someone swapping in a DCT would be pretty damn impressive...

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    How about MT > DCT

    Thats what I need Click here to enlarge
    Click here to enlarge
    460whp/510wtq tuned by Terry

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    Click here to enlarge Originally Posted by MAC335 Click here to enlarge
    How about MT > DCT

    Thats what I need Click here to enlarge
    unless the AT has additional things that the DCT needs, shouldn't it be the same?
    boop

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    Very impressive writeup! Sounds like a lot of money... The dct is amazing though, I love mine, and that's coming from a 6 speed 335
    Click here to enlarge
    ESS 6XX kit

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    Click here to enlarge Originally Posted by MAC335 Click here to enlarge
    How about MT > DCT

    Thats what I need Click here to enlarge
    The same AT > DCT + Pedal block from AT.

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    Wow, finally a DCT in an E90 or any E9x with an N55.

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    Does DCT1.JPG show for anybody?

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    Click here to enlarge Originally Posted by maxnix Click here to enlarge
    Does DCT1.JPG show for anybody?
    Works for me.

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    1 out of 1 members liked this post. Yes Reputation No
    has anyone thought about swapping in the zf8 speed? I'm certain there will be upgrades available for it and it may hold more torque from the factory. It's also used in a great deal of cars on the road so parts should be fairly common after a short while. Just a thought.

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    Click here to enlarge Originally Posted by TT-Tom Click here to enlarge
    has anyone thought about swapping in the zf8 speed? I'm certain there will be upgrades available for it and it may hold more torque from the factory. It's also used in a great deal of cars on the road so parts should be fairly common after a short while. Just a thought.
    Sounds like a hell of a headache.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Sounds like a hell of a headache.
    Isn't that from the newer bodies? Pretty sure those are in the newer body styles. In which case, that probably wouldn't work that well, considering it has a newer ecu etc. But may be worth looking at.
    Click here to enlarge
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    Click here to enlarge Originally Posted by klipseracer Click here to enlarge
    Isn't that from the newer bodies? Pretty sure those are in the newer body styles. In which case, that probably wouldn't work that well, considering it has a newer ecu etc. But may be worth looking at.
    that's what i was thinking, wish I had the funds to make this happen. I know the ecu has the capacity to see all 8 gears but I'm not sure if the coding is there or what all would be different; drive shaft diff etc. I don't think it would be that much honestly, I am also unaware of the torque capacity of this thing. Anyone have any data?

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    Click here to enlarge Originally Posted by TT-Tom Click here to enlarge
    has anyone thought about swapping in the zf8 speed? I'm certain there will be upgrades available for it and it may hold more torque from the factory. It's also used in a great deal of cars on the road so parts should be fairly common after a short while. Just a thought.
    Lol man. zf8 have GKE233 ECU and can't work with MSD81. Forget about this.

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    1 out of 1 members liked this post. Yes Reputation No
    I understand the ecu is different, but there have been stranger swaps on other platforms, I don't get why we are all so close minded.

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    Click here to enlarge Originally Posted by TT-Tom Click here to enlarge
    I understand the ecu is different, but there have been stranger swaps on other platforms, I don't get why we are all so close minded.

    Its not about being closed minded. But the reason the DCT swaps in, is because its already made to work with the msd81. Trying to reprogram everything is a lot harder than to modify some values that any dealer could do. If you are going to put in the zf8, you may as well put in an entirely different transmission.
    Click here to enlarge
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    1 out of 1 members liked this post. Yes Reputation No
    I hear you believe me, but there a few options that bolt in and are more durable then the 6hp19/21, if its possible I'm sure it would be a welcome option for those who live their 6at but want more power. Still a lot to figure out which you pointed out.

  19. #19
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    Click here to enlarge Originally Posted by TT-Tom Click here to enlarge
    I understand the ecu is different, but there have been stranger swaps on other platforms, I don't get why we are all so close minded.
    We aren't closed minded it's just that swapping parts from various BMW 3-Series generations is not exactly a plug and play endeavor. Getting everything to play nicely is a $#@! to put it mildly.

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    Yeah I know, its a $#@! of a car, but there are enough of us to warrant some serious transmission fixes. I'm shocked a company hasn't cracked the tcu yet or figured out a piggy back for the mech, its available for most high hp applications, I just love my car and don't want to buy another one based on this issue. I've also driven a lot of cars with the zf8 and I'm certain there are few slush boxes better than this thing. Its fast as hell, smooth in traffic and (in the trucks at least) holds massive tq even under towing. I wonder if zf wouldn't consider offering a open tcu file like they did for alpina. Its down to that or swapping to something with stand alone trans controllers like a gm trans but that's a whole different mess.

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    Was thinking yesterday... with some clutch upgrades, internal upgrades, increased line pressures...

    How awesome would this be on a big single N54?!
    boop

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    Click here to enlarge Originally Posted by Flinchy Click here to enlarge
    Was thinking yesterday... with some clutch upgrades, internal upgrades, increased line pressures...

    How awesome would this be on a big single N54?!
    I've been wanting to do this for 6 months....lol just waiting to see the DCT upgrade options and pricing. Already priced out the trans itself, driveshaft, and half-shafts. I want one sooo bad lol
    2009 335i coupe back to stock...for now

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    What is the difference in the DCT in the newer 335is or the M3? @Sticky ?
    2009 335i coupe back to stock...for now

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    Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
    What is the difference in the DCT in the newer 335is or the M3? @Sticky ?
    I didn't realize it was different? Is it?

    I think only the M5/M6 have newer units.

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    I didn't realize it was different? Is it?

    I think only the M5/M6 have newer units.
    Oh, OK, well looks like when input the search in used transmissions.com the 335i version is $1,000 cheaper lol. I figured just cause the car it's out of
    2009 335i coupe back to stock...for now

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