SL55/63/65/R230 AMG: Possible to lose tune if dealer "deletes" a lost key?




Is my power-chip tune at risk of being deleted?
I know a friend had the computer on his BMW 335i re-flashed and lost his ESS tune because of it.
Hopefully there is a difference between just deleting a key from the system (what I asked to be done) and "re-flashing" the computer.



