10-04-2020, 02:03 AM | #1 |
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Will OTA software update erase coding?
As the title says, will an OTA software update erase any coding? I'm considering having comfort+, sport+, lane change assistance etc coded to my G21. Nervous about spending money for it then to be lost when the next OTA is pushed out seeing as I'm still running 11.2019. I asked Zed the coder i plan to use and he said it was unlikely. Not sure i trust that reply. What's people's experience on here?
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10-04-2020, 02:46 AM | #2 | |
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Here is one such reference..... there are others https://g20.bimmerpost.com/forums/sh...&postcount=141
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10-04-2020, 02:49 AM | #3 |
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Depends on how they code it. Lane change assistant can be VO coded so would persist after a software upgrade if the FA was written to the car.
FDL coding will be erased during the second phase of the coding session, where the car is VO coded against the car's current FA. Personally, I wouldn't take a BMW, still under warranty, to a dealership with any modified FA or FDL coding active. Many will say that there is practically no risk and they never bother to revert the coding, and most of the time they are right, but they don't know what i do. |
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10-04-2020, 03:54 AM | #4 | |
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Can check, what is the different between VO and FA?
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10-04-2020, 06:13 AM | #6 |
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Just barely got the 11/2019 OTA update and can confirm all my bimmercode coding was erased and had to redo it. This gave me pause in having the remote coding done for LCA and anti-dazzle but not savvy enough to know if those would have been erased as well per the responses above.
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10-04-2020, 07:59 AM | #7 |
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I'm considering the bimmercode route now as well. Given I could be looking at paying for recoding once or twice a year for the remaining 3 years i have the car. The cost could mount up to over £240.
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10-04-2020, 09:17 AM | #8 | |
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You wouldnt be able to code auto lane change assistant with bimmercode as it doesn't support all ECU including SAS2/3. You'd need esys for that if VO Coding, or esysx if FDL coding. |
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10-04-2020, 09:32 AM | #9 |
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phayze ,
VO coding and FA coding is the same thing -- Vehicle Order in English and Fahrzeug Auflistung in German, if I recall correctly Hope that helps!
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10-04-2020, 12:16 PM | #10 |
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They are the same, FA is the German language acronym for VO.
The key point is that the FA/VO on the car is used during a programming session, to determine what the coding values are set for the new i-step. When a coder does the VO Coding it's the FA/VO that is loaded in esys that determines how the ECU will be configured. Good news is that if you never write the FA to the car then BMW will never notice any difference if looking. Bad news is that any programming session will wipe the modified FA changes e.g. if removal of 8TR is not written to the car, then auto lane change will stop working after an i-step upgrade. |
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10-04-2020, 03:46 PM | #11 |
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10-04-2020, 06:06 PM | #12 | |
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Can i say that it will be safer if i use FDL coding as there isnt any modifications to the VO/FA?
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10-05-2020, 03:30 AM | #13 | ||
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I always vo code all ECU's against the original FA so it's back to stock when taking to a dealer. I then reset all error codes in ista. If it's going to be upgraded and wiped anyway, what's to lose? |
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10-05-2020, 06:48 AM | #14 |
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phayze ,
I havev coded my now retired F30 & my current G20, as well as several friends' cars. I have only VO coded once (when I added Back up camera to F30). I agree with @ifr , it is "safer" to FDL code, only down side is having to re-code after software update Hope that helps!
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10-05-2020, 08:33 AM | #15 | |
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Understand. Bimmercode do FDL coding only right?
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10-05-2020, 08:50 AM | #16 |
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10-05-2020, 09:38 AM | #17 |
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10-05-2020, 11:06 AM | #18 |
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phayze ,
Yup, you can only do FDL coding with Bimmercode -- at least, for now. To do VO (aka FA) coding, you need E-Sys and an PSZdData file that is the same or newer than the I-Step (software version) in your car. To use, E-Sys, however, because BMW has "trimmed" the data files, you need another program. I used to use ProLauncher, but the developer, Tokenmaster, is apparently no longer available to get needed unlock codes. While I have heard of some hacked versions, I haven't tried any -- and they may also not be supported. You see to overcome "trimming", these additional programs basically map functions back into E-Sys -- so as BMW continues to update software, there are functions that become "orphaned" & can't be coded any longer. So, the only viable additional program is is E-SysX, which is available from their website (at a cost) & is well supported Sorry for the lengthy explanation-- Hope it Helps!
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10-05-2020, 06:03 PM | #19 | |
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Hi,
From my understanding, To use the free E-sys, u need the PSZdData file in order to code. Another way is to purchase E-sysX and this software can be use to code without any additional files or software. This can be use with any version of i-Step on G20. Correct me if i am wrong. Quote:
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10-05-2020, 06:29 PM | #20 |
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phayze ,
You still need E-Sys (see E-SysX web site for which versions) and the data files-- both of which are available at no cost
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10-06-2020, 02:09 AM | #21 | |
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esys+psdzdata+esysx = VO Coding + FDL Coding |
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10-06-2020, 05:21 AM | #22 | |
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I lost the DRL menu options (on/off and front/back). I also lost Comfort PLUS (the PLUS is coded in the UK it’s not there by default) and I lost tire pressure temp display.....all of these (except comfort plus) I easily put back withBimmercode. What was not lost...the Assisted driving view in the instrument cluster....the one that shows you the vehicle (truck, car, bike) in front of you...Also the assisted overtaking remained (the one where you flick the indicator and the car overtakes the vehicle in front). The assisted driving view in the instrument display was originally not present on my vehicles so Zed coded it. I’ve got an 840D Launch edition. Hope this helps J |
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