Canít speak categorically but it is a good idea to NOT reset the FSS. That is the mechanism the dealer uses for scheduling services. If you let them do it, you are assured that the minimum maintenance will be done.
That said, the FSS is essentially a counter, so there is no harm in resetting it, other than as mentioned above
BTW, how do you like you A class???? We donít hear much about themÖ.
'00 ML320 "Casper"
'92 400E "Stella"