In theory, how many times can you flash your ECU before you smoke it?

Dark_Knight_335 · 05-27-2011, 11:57 AM

I hear every time you flash, you take some life away from your ECU. Can someone get into more real life fact supported details?

mike-y · 05-27-2011, 12:09 PM

It's probably like the flash memory you get for your computer on usb sticks and SD cards. they are good for something like a million or so writes. I don't think we have anything to worry about really.

I did hear that some older bmw computers are limited to something like 3 flash writes, though I do not know if that is accurate or not.

teamben158 · 05-27-2011, 12:15 PM

Like Mike-y said, I highly doubt you will ever approach the number of reflashes it can handle via hardware.

milly · 05-27-2011, 01:38 PM

I'm sure BMW would make it a bit more than 3 flashes ATLEAST!

Dark_Knight_335 · 05-27-2011, 02:36 PM

Thanks to everyone! Enjoy the MDW and be SAFE!

onebadmofo · 05-27-2011, 02:46 PM

From wiki:

Most commercially available flash products are guaranteed to withstand around 100,000 P/E cycles, before the wear begins to deteriorate the integrity of the storage.

benzo23 · 05-27-2011, 02:50 PM

6

caradd · 05-27-2011, 02:51 PM

I've loaded and unloaded the Cobb AP tune at least 8 times when I had it.

togatown · 05-27-2011, 03:20 PM

Count the number of HPFP you've replaced, multiply it by the number of injectors recalled on your car and add one.

Safe memorial day motoring to all!

benzo23 · 05-27-2011, 03:38 PM

Quote:

Originally Posted by dave335eye

Count the number of HPFP you've replaced, multiply it by the number of injectors recalled on your car and add one.

Safe memorial day motoring to all!

Lmao

Dark_Knight_335 · 05-27-2011, 05:11 PM

Quote:

Originally Posted by dave335eye

Count the number of HPFP you've replaced, multiply it by the number of injectors recalled on your car and add one.

Safe memorial day motoring to all!

This guy is my new hero

You too!

Tim@EMSTUNING · 05-28-2011, 05:28 PM

Quote:

Originally Posted by dave335eye

Count the number of HPFP you've replaced, multiply it by the number of injectors recalled on your car and add one.

Safe memorial day motoring to all!

:

Tim@EMSTUNING · 05-28-2011, 05:35 PM

Quote:

Originally Posted by SDeFranco1

I hear every time you flash, you take some life away from your ECU. Can someone get into more real life fact supported details?

As a Tech I have encountered this issue before it was relevant with the E39 M5, Z3M w/S54 & E46 M3 where the ECU has two E-Proms with internal counters and once the ECU hit's 60 Flashes it will "brick" the ECU which it allows you to read the information but the ability to write back is disabled. The MSV70 & MSV80 ECU's don't seem to have that issue since BMW has established numerous software updates for N52 & Especially N54 vehicles.

Dark_Knight_335 · 05-28-2011, 09:05 PM

Thanks Tim- puts my mind at ease hearing from a tuning professional!

darkrom · 05-30-2011, 10:59 PM

100k to a million. If you flash it even 1000 times there is something wrong with you lol.

Dark_Knight_335 · 05-30-2011, 11:04 PM

God that avatar scared me, now I won't be able to sleep. Thanks a lot!!! :-(

05-27-2011, 11:57 AM	#1
Dark_Knight_335 Came to the N55 Darkside 1131 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	In theory, how many times can you flash your ECU before you smoke it? I hear every time you flash, you take some life away from your ECU. Can someone get into more real life fact supported details?
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05-27-2011, 12:09 PM	#2
mike-y just another bmw douche bag 195 Rep 3,640 Posts Drives: 1.9L of fury Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (4)	It's probably like the flash memory you get for your computer on usb sticks and SD cards. they are good for something like a million or so writes. I don't think we have anything to worry about really. I did hear that some older bmw computers are limited to something like 3 flash writes, though I do not know if that is accurate or not.
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05-27-2011, 12:15 PM	#3
teamben158 ಠ_ಠ 18 Rep 816 Posts Drives: 2008 AW 335i Join Date: Mar 2011 Location: Chicago, IL iTrader: (0)	Like Mike-y said, I highly doubt you will ever approach the number of reflashes it can handle via hardware. __________________
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05-27-2011, 01:38 PM	#4
milly Captain 83 Rep 783 Posts Drives: 328i Join Date: Dec 2010 Location: Charleston, SC iTrader: (3) Garage List 2008 328i (e90) [9.00]	I'm sure BMW would make it a bit more than 3 flashes ATLEAST! __________________ Black 2008 328i e90-BMW Performance CF Strut Bar/Muffler delete/8000k Fogs Fogs/Trunk Spoiler/5% Tint/BlueTooth/JVC HU/AG M359 Wheels/Matte Black kidney grills/H&R Race Springs/Koni Yellows/Orion V2 Angel Eyes/EuroCharged Tune/
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05-27-2011, 02:36 PM	#5
Dark_Knight_335 Came to the N55 Darkside 1131 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	Thanks to everyone! Enjoy the MDW and be SAFE!
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05-27-2011, 02:46 PM	#6
onebadmofo Colonel 353 Rep 2,394 Posts Drives: 2008 E90 M3 Join Date: Aug 2010 Location: Central NJ iTrader: (14)	From wiki: Most commercially available flash products are guaranteed to withstand around 100,000 P/E cycles, before the wear begins to deteriorate the integrity of the storage.
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05-27-2011, 02:50 PM	#7
benzo23 Colonel 74 Rep 2,848 Posts Drives: 14 F30 AW MSport Join Date: Apr 2010 Location: FL iTrader: (1)	6
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05-27-2011, 02:51 PM	#8
caradd () () 10 Rep 436 Posts Drives: 2007 e92 335i 6mt Join Date: Jun 2009 Location: Here iTrader: (3)	I've loaded and unloaded the Cobb AP tune at least 8 times when I had it. __________________
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05-27-2011, 03:20 PM	#9
togatown Private First Class 3 Rep 102 Posts Drives: 2011 Audi S4 Join Date: Feb 2009 Location: Torrington, CT/Saratoga, NY iTrader: (1)	Count the number of HPFP you've replaced, multiply it by the number of injectors recalled on your car and add one. Safe memorial day motoring to all!
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05-28-2011, 09:05 PM	#14
Dark_Knight_335 Came to the N55 Darkside 1131 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	Thanks Tim- puts my mind at ease hearing from a tuning professional!
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05-30-2011, 10:59 PM	#15
darkrom Colonel 242 Rep 2,348 Posts Drives: 135i Join Date: Feb 2011 Location: Rhode Island iTrader: (5)	100k to a million. If you flash it even 1000 times there is something wrong with you lol.
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05-30-2011, 11:04 PM	#16
Dark_Knight_335 Came to the N55 Darkside 1131 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	God that avatar scared me, now I won't be able to sleep. Thanks a lot!!! :-(
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