Flashing DME...any tips - BMW M5 Forum and M6 Forums
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post #1 of 15 Old 6th June 2019, 06:53 PM Thread Starter
mech9t8
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Flashing DME...any tips

So I want to use ecuworx binary modification tool to turn off check engine light for secondary air and re-map throttle.
Process seems to be straight forward but after doing more reading seems that some people have had issues after flashing or worst case bricked their DME. Obviously I don't want this to happen to me so I'm asking the community for their expertise and help in answering a few questions.
- BMWflash or MSSflasher - is one better than the other?
- anything lessons learned from people who have done this?
- anything else?
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post #2 of 15 Old 6th June 2019, 07:05 PM
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post #3 of 15 Old 8th June 2019, 04:24 PM
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Just do it, it'll be fine. BMWFlash is free, MSSflasher is more capable. If you plan on doing multiple flashes, MSSflasher is worth having since its writes are much faster and it can clear the flash counter.

I must have flashed my DME hundreds of times by now. The only times anything went wrong was if I wrote bad data to the DME. Since you're using a tool to modify your binary files instead of doing it by hand, your risk is basically nil.
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post #4 of 15 Old 9th June 2019, 03:56 PM Thread Starter
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post #5 of 15 Old 11th June 2019, 02:31 AM
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mtech9t8, if you have any issues with your DME after trying to flash, PM me and I can help you recover it. Just make sure before you modify anything to do a full read with bmwflash and store it somewhere safe. That will be a good backup of your ISN and VIN info in case a full restore is needed. I have a BDM tool that will allow writing the entire contents of the DME as long as it will power up.

-Paul
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post #6 of 15 Old 11th June 2019, 04:26 PM Thread Starter
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post #7 of 15 Old 11th June 2019, 06:56 PM
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I am in a position where I need to flash my ECU back to stock in order to install a Shark Injector (want to clear the SAI code).
I emailed Mike for some feedback. I would like to avoid having to go to the dealership to do this. Do you guys have any suggestions.
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post #8 of 15 Old 12th June 2019, 03:57 AM
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Connecting a power source to the battery is not a bad idea.

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post #9 of 15 Old 12th June 2019, 05:04 AM
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post #10 of 15 Old 12th June 2019, 08:54 AM
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MSSFlasher lets you reset the flash limiter, BMWflash doesn't. This shouldn't be a problem for you unless you are making many many revisions, but figured it was worth a mention.

I personally use MSSFlasher, but I also do my own tuning so I'm always making changes.

Chris

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