Merserybenze

in the dash and back seat area..2018 S450 4matic. Anyone else have this?

RJC

Have someone drive the car while you press on different surfaces/areas until you identify the spot...the fix (normally some felt tape/foam) is then the easiest part once the source is found. You can also lightly pound around the area(s) you hear the rattle coming from then press firmly while lightly pounding until it stops.