Narrowriver

I have a 2019 GT 63 which creates a whistling noise at highway speeds. It seems to be only on the driver's side. Does anyone have any ideas on what might be the cause?

PeterUbers

This was an issue on the W-212 and it turned out to be a gap between the front grill and the hood. What you can try is putting some painters tape on some of the joints of the drivers side view mirror, and some of the joints between different plastic pieces and the area on the hood as described from the W-2 12 and see if that gets rid of the high-pitched whistling, and if it does, you know what part needs to be adjusted or repaired. The repair for the W-2 12 was a sealant that they applied to get rid of that gap.

https://mbworld.org/forums/w212-amg/...nt-grille.html

Eaton

This might be it.