SL-Class (R129) 1990-2002: SL 280, SL 300, SL 320, SL 500, SL 600, SL 60 AMG

SL/R129: ECU RESET

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Old 08-31-2016, 12:26 AM
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1999 SL500
ECU RESET

Can I reset ecu
Old 08-31-2016, 12:53 AM
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bone stock E55 AMG
disconnect battery overnite...
Old 08-31-2016, 04:44 PM
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'06 E500, '99 ML430 and '07 SL65
I beleive this works on the R129 as well: https://mbworld.org/forums/e-class-w...e55-forum.html
Old 11-12-2016, 05:49 PM
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Sl65
ECU Reset -- THANK YOU!!

OK...a big THANK YOU to whoever posted this ECU reset trick. I have a 2006 SL65 and I decided to floor it. Something went wrong instantly and it wouldn't downshift anymore and the check engine light came on.


I looked up the ECU trick and it worked like a charm. The check engine light went off after the usual 5-6 times of restarting.


Wow -- THANKS!!


-CA
Old 11-15-2016, 08:32 PM
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1922 Ford Model T / no OBD
I think you are confusing transmission adaptation reset with error code reset.
Soft codes will always reset after few restarts if the error is not coming back.... till next time you floor it.
You better read the code.

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