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How to tune transmission?! Bmw siemens gs20
29-05-2016, 10:21 AM,
Post: #1
How to tune transmission?! Bmw siemens gs20
Hi dudes....

I search for a way to tune the transmission control unit siemens gs20 from bmw....

Any ideas???

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30-05-2016, 11:39 AM,
Post: #2
RE: How to tune transmission?! Bmw siemens gs20
There is no way for now, you can only try reverse engineering.
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30-05-2016, 12:07 PM,
Post: #3
RE: How to tune transmission?! Bmw siemens gs20
Thats not right...

I have a dump with hex code

And on bitbox.ru you can get a programm to recalc the checksum.

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30-05-2016, 14:59 PM,
Post: #4
RE: How to tune transmission?! Bmw siemens gs20
It's true, yes you can read over obd. Yes you can read with bootmode, i already did that.
But there is no DAMOS/A2L or something, you just have the binary. I asked bitbox guys, they even can not modify it. Maybe only some simple values.
So you have to do reverse engineering on boot mode file to understand, what's doing.
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31-05-2016, 22:08 PM,
Post: #5
RE: How to tune transmission?! Bmw siemens gs20
You need a dude... he must read machine code and understand....

what simple values you know can change...

my idea is to put more pessure to the clutches and more pressure to the torque converter clutch
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01-06-2016, 20:48 PM,
Post: #6
RE: How to tune transmission?! Bmw siemens gs20
For e39 , e46 , e38 , e53 are alpina softs for automatic gearbox. You can flash it by winkfp smile
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02-06-2016, 00:36 AM,
Post: #7
RE: How to tune transmission?! Bmw siemens gs20
Not for diesel! Its a diesel

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02-06-2016, 21:33 PM,
Post: #8
RE: How to tune transmission?! Bmw siemens gs20
Bro pay for good file smile
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05-06-2016, 12:53 PM,
Post: #9
RE: How to tune transmission?! Bmw siemens gs20
Does someone have a good transmission tune file.. i dont think
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06-06-2016, 06:57 AM,
Post: #10
RE: How to tune transmission?! Bmw siemens gs20
You can not pay, because no one ever has done this! As i said, do full readout in boot mode, i can prepare you file. Then go with IDA pro, and understand the Code, only takes some "month" to do that. This is where i stopped and converted to manual. biggrin
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