high-pitched whistling sound
What you are doing is creating “turbulators”, that trips laminar airflow to turbulent airflow. The disturbance can stop the whistle — if you find the right spot. Rather than furniture pads, recommend you try clear door pads that you can buy at Lowe’s or Home Depot. They are small and you can put them in rows or stagger them...whatever works. Will be less noticeable than a black pad. It doesn’t take much to disturb the airflow and stop the whistle.
Cabinet Bumpers Drawer Bumpers Pads...
Last edited by TexAg91; Jun 29, 2021 at 09:55 AM.

I know it’s a hassle to keep taking our cars to the dealership but these issues should be addressed by MB and its dealers!




I think it’s coming from top of window rubber frame seal. Going to run tape along outside window frame and take it for a drive on freeway
The Best of Mercedes & AMG




I've found my stethoscope to be a valuable tool for many investigations.
I have spent 1,000 to 3,000 miles in each of three versions of V167 autos, and 5,000 in my new GLE53, and haven't heard a whistle. None of them. And I'm sensitive to such things - ask my wife!
Last edited by mikapen; Jun 29, 2021 at 04:13 PM.
Pick up the GLS450 in May and started to hear these whistling noise when I am going over 100km/hr, I did a lot of search (thanks to the forum and this threads), I tried the 3M tape, the O rings, neither of them worked. so I came across with some YouTube videos about similar issues with Volvo and Lexus, what they did to fix this problem is to use the cabinet door bumps. it worked! We drove over 1,200km the past week for road trip and the noise is gone. I agree this issue is design flaw and something to do with aero dynamic. so, here are the pictures! I basically stick the bumps all around, but I will slowly take them off one by one, and pinpoint which area really caused the issue. here are some pictures. hope this will help everyone until MB has a permanent fix.




Just don't be surprised when you find that the JGC costs more for similar features.
https://mbworld.org/forums/gle-class...ml#post8369075
Yup, kind of sad that you need to do something like this on a car of this calibre but it is what it is...




