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-   -   Loose Zusb N55 DCT (https://www.n54tech.com/forums/showthread.php?t=58015)

cabby 05-15-2019 10:48 AM

Loose Zusb N55 DCT

is there a possibilty to find out a loose Zusb from DCT in OEM car version?

I've loose it and need it important to flash the right DCT with Winkpft.


JacquesN55 05-16-2019 06:18 AM

8606072 if 135 n55 dct if 335 n55 dct 8606074

cabby 05-22-2019 10:15 AM

Hello Jaque,

is this IS-Flash or OEM-Software for series cars?

JacquesN55 05-22-2019 12:49 PM

8606072 is for normal 135 n55 dct not 335is

Tallicia 05-23-2019 09:21 AM

What is a "loose zusb"? I'm super curious for some context here.

keyap 05-23-2019 01:03 PM

The above are numbers used to identify the software version used on BMW modules.

The OP appears to be asking what the OEM one is for the module which controls the DCT gearbox, as he has 'lost' it which I'm guessing means not sure what it is.

Software is generally model/variant/gearbox specific (the version for the DCT differs to that of the AT for example) but, for some different models with DCTs, is interchangeable. With the right software (which can be downloaded for free) and knowledge of the process (how to use WinKFP) can be done 'at home'. The thread linked below provides further details of some different Zusb options:

DCTa - Possibly A Way To Increase Clutch Pressure Without A BEF - N54Tech.com - International Turbo Racing Discussion

Tallicia 05-23-2019 02:20 PM

Thank you! I've used WinKFP for PPK and INPA for valvetronic re learning after replacement.

That's awesome further ECU modifying and investigating continues! I'll have to see if my DCT might benefit from a flash for the DKG for higher pressure/tighter engagement.

keyap 05-23-2019 02:29 PM

Just watch the number of DCT flashes available if UIF is enabled. It's quite low for DCTs so you may want to disable this option whilst experimenting and re-enable for the final flash so a record is created.

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