BMW programmed ASS in such a way that it only works if conditions are met. Among several measurements, it takes motor temperature into account as well as AC need etc. So if it works in your situation, then it shouldn't harm. That's for theory. Myself I nearly always deactivate ASS after start, even after changing Mode (Sport/Comf/EcoPro). Depending on the situation I manually reactivate sometimes. Generally, if Stop/Start goes to a stop for only few seconds I personally think it'll be better to deactivate it.
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