The FSS reset procedure is in your owner's manual...

...if you choose not to do the other recommended service items, PLEASE don't skip the fluid changes!

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car