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Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
04-12-2015, 13:46 PM,
Post: #1
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Hi folks,
i am driving an 2009 CR 2.0 TDI Audi A3. i am a victim of VW's latest "Dieselgate" scandal. Which means VW and the german government will force me in 2016 to "update" my ECU with a new software that will very probably have a negative impact on horsepower and other motormanagement parameters. I am now investigating what i can do to revert back to my old ECU software after the "forced update" at my dealer. I have already read a lot about VAS and updating ECUs. I also have downloaded the corresponding .sgo file which is working at the moment in my ECU. Question is, how can i downgrade to that file. Are there any tutorials here for such cases? Which VAS Interface would you buy? Kind regards |
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04-12-2015, 14:29 PM,
Post: #2
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RE: Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
I sugest you to make a full backup of your ecu and save it on your pc..etc..then you can write it back when ever you need...read/write you can do with fgtech,ktag..etc on a bench..good luck
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04-12-2015, 14:53 PM,
Post: #3
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RE: Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
So, no possibilities via OBD?
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04-12-2015, 15:14 PM,
Post: #4
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RE: Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
EDC17 best way is BDM no OBD.
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04-12-2015, 15:30 PM,
Post: #5
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RE: Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
Ok that makes things more complicated.
Even with VAS PC and genuine .sgo file no chance? |
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04-12-2015, 15:59 PM,
Post: #6
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RE: Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
Hi
if you have genuine VAS PC are one more chance when will be ready one new FR/SGO file ! a second chance are if you have any tool to read such ecu than you dont need to wait for new calibration file from german headquarter ![]() Regards Full WinOLS User Custom made ENG/GER OLS file for TUNE/DPF/SCR/EGR/TVA/VSA/DTC and more... |
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04-12-2015, 16:31 PM,
Post: #7
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RE: Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
(04-12-2015, 15:59 PM)mike_service Wrote: Hi Sorry i dont understand. At the moment i have a genuine .sgo file of my ECU software. My idea was to buy a non genuine VAS adapter and to flash it back via OBD after the update from "german headquarter". (The idea is to avoid! this update) Can you give me a hint if this would work or not? |
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04-12-2015, 17:56 PM,
Post: #8
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RE: Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
Sorry..but already i have give you the hint !you have asked for genuine VAS PC,but it work also with china if are good product !
Full WinOLS User Custom made ENG/GER OLS file for TUNE/DPF/SCR/EGR/TVA/VSA/DTC and more... |
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04-12-2015, 18:06 PM,
Post: #9
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RE: Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
(04-12-2015, 17:56 PM)mike_service Wrote: Sorry..but already i have give you the hint !you have asked for genuine VAS PC,but it work also with china if you good product ! Sorry but i dont understand what "are one more chance when will be ready one new FR/SGO file !" means. The ECU will have a new firmware after the flash by the dealer and i want to flash my genuine SGO file of my old firmware after that. I wanted to know if that will work. |
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04-12-2015, 18:15 PM,
Post: #10
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RE: Audi A3 2.0 TDI EDC17 How to downgrade ECU firmware
I am sorry Mr. but you not are working in this "area"...
Are many tricks to downgrade the software for all EDC17 ecu from VAG ! Full WinOLS User Custom made ENG/GER OLS file for TUNE/DPF/SCR/EGR/TVA/VSA/DTC and more... |
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