The aftermarket air deflectors cure this problem nicely!

EVERY car/truck/suv I have ever owned that had a sunroof had that wind buffeting problem!

I will contend that the ML seems to be worse than the others. But I bought an aftermarket air deflector and it not only cured the buffeting, but reduced wind noise considerably!

I can actually maintain a normal conversation at 65 mph with the sunroof open without yelling!

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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