ECU Reset

RupertPupkin · 08-31-2011, 04:10 PM

Before I get flamed and told to use the

function, I have. I have seen numerous threads about pulling the battery overnight, 10 minutes, 30 minutes...etc. Has the e90 community actually determined the defnite way to do a proper ECU reset?

In the e46 it was generally accepted that you turn the key to aux for 45 seconds, then turn off, then fully turn car on and that would do it.

Just surprises me after all of the years of this car being around there isnt an accepted method or official method from BMW.

Thanks in advance.

RupertPupkin · 08-31-2011, 06:43 PM

is anybody out there?

RupertPupkin · 09-01-2011, 02:57 PM

bump

BlueElectrin · 09-01-2011, 03:14 PM

Are we talking about the automatic transmission reset?

RupertPupkin · 09-01-2011, 05:23 PM

Quote:

Originally Posted by BlueElectrin

Are we talking about the automatic transmission reset?

No I am referring to the ECU only. Nothing to do with tranny. I actually have a 6MT.

RupertPupkin · 09-01-2011, 07:55 PM

Really? No one has ever reset their ECU? Guess I will just get ghetto and unhook the battery for a while. Find it odd this car doesnt have a procedure for resetting the ECU....

M340i Pride · 09-01-2011, 09:07 PM

i think 20 mins is pretty much safe bet. so if you were to install ecu engine mod most companies tell you to wait 15-20 mins i believe.

ErvGotti · 09-01-2011, 09:12 PM

I've used my Bav Tech scan tool before to reset the DME.

RupertPupkin · 09-01-2011, 09:38 PM

Thanks for the info guys. Just gonna leave it unhooked overnight. Getting coding done soon so ill do it then too if need be

08-31-2011, 04:10 PM	#1
RupertPupkin Major 92 Rep 1,456 Posts Drives: Freak Beast Join Date: Aug 2011 Location: East iTrader: (5)	ECU Reset Before I get flamed and told to use the function, I have. I have seen numerous threads about pulling the battery overnight, 10 minutes, 30 minutes...etc. Has the e90 community actually determined the defnite way to do a proper ECU reset? In the e46 it was generally accepted that you turn the key to aux for 45 seconds, then turn off, then fully turn car on and that would do it. Just surprises me after all of the years of this car being around there isnt an accepted method or official method from BMW. Thanks in advance.
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08-31-2011, 06:43 PM	#2
RupertPupkin Major 92 Rep 1,456 Posts Drives: Freak Beast Join Date: Aug 2011 Location: East iTrader: (5)	is anybody out there?
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09-01-2011, 02:57 PM	#3
RupertPupkin Major 92 Rep 1,456 Posts Drives: Freak Beast Join Date: Aug 2011 Location: East iTrader: (5)	bump
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09-01-2011, 03:14 PM	#4
BlueElectrin Private 6 Rep 61 Posts Drives: 2014 535i xDrive Join Date: May 2011 Location: Canada iTrader: (0)	Are we talking about the automatic transmission reset?
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09-01-2011, 07:55 PM	#6
RupertPupkin Major 92 Rep 1,456 Posts Drives: Freak Beast Join Date: Aug 2011 Location: East iTrader: (5)	Really? No one has ever reset their ECU? Guess I will just get ghetto and unhook the battery for a while. Find it odd this car doesnt have a procedure for resetting the ECU....
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09-01-2011, 09:07 PM	#7
M340i Pride Lieutenant Colonel 209 Rep 1,712 Posts Drives: 2020 BMW M340i Join Date: Nov 2010 Location: Los Angeles, CA iTrader: (1)	i think 20 mins is pretty much safe bet. so if you were to install ecu engine mod most companies tell you to wait 15-20 mins i believe.
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09-01-2011, 09:12 PM	#8
ErvGotti Major 124 Rep 1,362 Posts Drives: 2008 135i 6MT Join Date: Jul 2010 Location: Aviano iTrader: (5) Garage List 2008 135i [6.00]	I've used my Bav Tech scan tool before to reset the DME.
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09-01-2011, 09:38 PM	#9
RupertPupkin Major 92 Rep 1,456 Posts Drives: Freak Beast Join Date: Aug 2011 Location: East iTrader: (5)	Thanks for the info guys. Just gonna leave it unhooked overnight. Getting coding done soon so ill do it then too if need be
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