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Thread: Need to flash E46 M3 ECU tune back to stock.

  1. #1
    Join Date
    Dec 2015
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    West Hartford CT
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    E46 M3

    Need to flash E46 M3 ECU tune back to stock.

    Bought an E46 M3, found out from owner it has a tune. I need to flash it back to a stock tune. How and where can I get that done from? Friend has a AUTEL scanner/reader will that be able to flash it back to stock? I can also pull the ECU off and send it off to get it completely hard reset, will that work as well? All I'm looking for is to flash it back to stock settings with no tune. Any ideas?

  2. #2
    Join Date
    Oct 2010
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    Manchester, N.H.
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    96 332IS 6466 turbo
    Autel will do no such thing. Maybe find out exactly what you got, sell it and buy a DME on eBay or in the WTB section. I'm sure there are a couple guys that have them.
    You may need your "-------" aligned for the new DME to work. But probably best bet and maybe profit in the end.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
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  3. #3
    DUDMD's Avatar
    DUDMD is offline BMW Maniac Supporting Vendor
    Join Date
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    Kent, WA
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    95-540i/6 98-750iL
    I can do this for you.
    We can flash it with the newest available original software that matches your VIN. It will overwrite any aftermarket tune that is on the DME.
    Please send me a PM for more details, thanks.
    Performance Tuning and EWS Delete for MSS52/MSS54/MSS54HP/MS41/MS42/MS43/ME7.2/M5.2
    Virgnize DME service available to unlock DME to sync to another vehicle on EWS3 vehicles 98+. M5.2.1, M7.2, MS42, MS43, MS45, ME9.2 and more.

    Easiest way to contact me is to send me a message on my facebook page "DUDMD Tuning"

  4. #4
    Join Date
    Oct 2021
    Location
    Canada
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    1
    My Cars
    02 E46 M3
    Quote Originally Posted by deadlocked View Post
    Bought an E46 M3, found out from owner it has a tune. I need to flash it back to a stock tune. How and where can I get that done from? Friend has a AUTEL scanner/reader will that be able to flash it back to stock? I can also pull the ECU off and send it off to get it completely hard reset, will that work as well? All I'm looking for is to flash it back to stock settings with no tune. Any ideas?
    sorry to bring this back
    did you end up restore the tune to stock by DIY?

  5. #5
    Join Date
    Jul 2004
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    Houston, TX
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    32 Cylinders
    Quote Originally Posted by powershiftgear View Post
    sorry to bring this back
    did you end up restore the tune to stock by DIY?
    It's easy to do with WinKFP and a K-DCAN cable at home
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 550hp

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