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08-30-2021, 09:23 AM | #1 |
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Should I remove BM3 tune before getting software updated?
Have a 2016 and want to get the software updated as I've read that improvements were made over the production time. Wondering if I should remove the tune first and then re apply it after to avoid anything conflicting?
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08-30-2021, 09:27 AM | #2 |
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I would!
You dont want BMW blaming your TUNE if something goes wrong during the upgrade. Take it back to stock so they dont have a excuse if they brick a module! Always play stupid and safe when it comes to the dealership! |
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08-30-2021, 10:37 AM | #4 |
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RECONSIDER
If you get a really new software update you'll have a re-locked DME and can't use BM3. This might require a bench unlock (pull out the computer) or leave you fully locked and without BM3 access at all. Don't update car SW unless something broken requires it to fix, then decide if… Ask the mechanic which SW version is requested for the fix, and consult Support@PTF before loading the new BMW SW.
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08-30-2021, 03:36 PM | #5 | |
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08-30-2021, 03:53 PM | #6 |
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YES, otherwise your warranty is toast. They'll know once they plug in your car that it has been tuned.
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08-30-2021, 04:15 PM | #7 | |
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08-30-2021, 04:47 PM | #8 | |
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ISTA can’t target specific modules to update and will in fact check versions based on the istep and will upgrade accordingly. After I got my car back, PTF had me walkthrough and verify that the DME was in fact updated and had reset my account prior to reflashing. |
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09-07-2021, 12:50 PM | #10 | |
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My AC sometimes blows warm. Independent shop said there is a software update; but he was smart enough to have me check on making any changes. |
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09-07-2021, 02:37 PM | #11 | |
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It’s only the newer cars that have the latest chipsets (supporting higher levels of encryption) that get locked and need bench unlocking. 2016, 2017, 2018 cars should be fine to be updated…. My 2c
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09-07-2021, 03:09 PM | #12 | |
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Even if you revert back to stock tune, the moment is car is hooked up to ISTA at the dealership; it flags if the car has ever been tuned. Just had this last week, and the dealer explained that their latest version of ISTA (and some other logging tools) now detect a tune straight away… They probably can also tell the date/time stamp when the tune was running…
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05-14-2022, 11:14 PM | #13 | |
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Do you know the specific build date? I have a ‘18 M4 but it was manufactured March 2017. Software was updated in March 2020 and I have a Carbahn stage 1 inbound which I hope to tune via obd2 tablet. |
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05-18-2022, 09:50 PM | #14 | |
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BTW the Carbahn Stage 1 tune was painless to install and is freaking awesome! |
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05-19-2022, 07:17 AM | #15 |
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Was there a way for you to check before flashing it? Or did you just say fuck it and send it?
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05-19-2022, 09:16 AM | #16 | |
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05-19-2022, 03:55 PM | #17 | |
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05-21-2022, 07:23 AM | #18 |
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I have a very early 2016 M4 that I bought through European Delivery in September of 2015. A couple of years ago I had the USA BMW dealership (Park Avenue BMW) I bought the car from, install a Carbahn Stage 1 tune (they are an authorized Carbahn installer). If I now want that dealership to update my tune, do you think they can do that without screwing up my Carbahn tune? And if they can do that, how can I verify that they did it correctly?
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05-21-2022, 08:25 AM | #19 | |
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05-21-2022, 11:52 AM | #20 | |
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05-22-2022, 05:09 AM | #21 |
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