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BMW M5 F90 (2018+) General Forums Engine, Exhaust, Drivetrain, Tuning Modifications    Bootmod3 tune, launch control doesn't work

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      03-24-2020, 03:53 PM   #1
dk79
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Bootmod3 tune, launch control doesn't work

I have installed bm3 tune on my m5.
Car feels faster for sure, but the launch control doesn't seem to work.
I have tried both 91 and 93 maps but the flag doesn't show.
I have to manually shift, it wont auto shift.
I know how to use launch control and have used it many times,
Stock and with jb4.
Contacted bm3 haven't heard back from them yet.
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      03-24-2020, 07:55 PM   #2
JBA87
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Be careful you might have made an oversight when it was flashed:

When you flash the car, all of your preprogrammed settings default back to stock... so pressing the m2 button (if you have preprogrammed it to engage launc control) won't work ...

I made this mistake

Make sure everything has been reset

Select Sport plus across the board
Turn stability control fully off
Put inManual

Reset m2 button

If that doesn't fix problem, then it could be a tune issue
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      03-24-2020, 09:56 PM   #3
dk79
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Quote:
Originally Posted by JBA87 View Post
Be careful you might have made an oversight when it was flashed:

When you flash the car, all of your preprogrammed settings default back to stock... so pressing the m2 button (if you have preprogrammed it to engage launc control) won't work ...

I made this mistake

Make sure everything has been reset

Select Sport plus across the board
Turn stability control fully off
Put inManual

Reset m2 button

If that doesn't fix problem, then it could be a tune issue
Bm3 replied back that they dont support launch control,
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      03-24-2020, 10:00 PM   #4
dk79
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You are right man, thanks alot. The car was in MDM settings changed after the flash, put back in DSC off in m2.
Will try again later. Muuaahh to you.
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      03-24-2020, 10:21 PM   #5
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Great! Glad I could help
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      03-08-2021, 12:53 PM   #6
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Quote:
Originally Posted by dk79 View Post
I have installed bm3 tune on my m5.
Car feels faster for sure, but the launch control doesn't seem to work.
I have tried both 91 and 93 maps but the flag doesn't show.
I have to manually shift, it wont auto shift.
I know how to use launch control and have used it many times,
Stock and with jb4.
Contacted bm3 haven't heard back from them yet.
Hi, have you solved the issue? LC works for you after reset? Or it doesn't work with BM3? Thanks.
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      03-08-2021, 08:12 PM   #7
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Quote:
Originally Posted by cryptomit View Post
Quote:
Originally Posted by dk79 View Post
I have installed bm3 tune on my m5.
Car feels faster for sure, but the launch control doesn't seem to work.
I have tried both 91 and 93 maps but the flag doesn't show.
I have to manually shift, it wont auto shift.
I know how to use launch control and have used it many times,
Stock and with jb4.
Contacted bm3 haven't heard back from them yet.
Hi, have you solved the issue? LC works for you after reset? Or it doesn't work with BM3? Thanks.
I can say lc still works with bm3.
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      03-09-2021, 08:02 AM   #8
cryptomit
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Ok, thanks for the answer, so you changed some settings after car have been flashed? I mean some setting reset? Can you guide me how you are able to execute LC?

Casue a lot of people faced with the issue when LC doesn't work after flashing bootmod3 .

Thank you.
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      03-09-2021, 09:07 AM   #9
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Quote:
Originally Posted by cryptomit View Post
Ok, thanks for the answer, so you changed some settings after car have been flashed? I mean some setting reset? Can you guide me how you are able to execute LC?

Casue a lot of people faced with the issue when LC doesn't work after flashing bootmod3 .

Thank you.
It's same as Always - BM3 doesnt remove LC from your car. Just every flashing resets settings.

So if you had M2 button saved as predefined settings that would allow you trigger LC it won't have same settings again.

You can either re-set the button to how it was before flash or just manually put the car in DSC OFF, AWD SPORT, Gearbox in S3 and it will trigger if you do everything right.
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      03-09-2021, 10:18 AM   #10
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Thank you, will check it soon . Great news.
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