Thread: OTA in the USA
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      07-01-2020, 03:35 AM   #73
ifr
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Drives: Tesla MY LR AWD
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Quote:
Originally Posted by eagle_bmw View Post
No 8TL (or S8TL) in mdecoder, only S8TM (?). Not sure what this means or whether I left 8TL before I get upgraded to 11/2019.70. But, I thought coding will be lost with a release update.
When your car is upgraded, each target ECU is first programmed to the new i-step version, and then VO Coded using the car FA to determine what codes are set. It's during the VO Code that your FDL coding is wiped.

I can't be certain where 8TL came from. If you didn't add it manually, and its not part of your original factory order, then the assumption has to be that it was added during an i-step upgrade.
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