845

My recently purchased 2019 E450 wagon has a surprising amount of wind noise at highway speeds - it sounds like it's localized in the area of the sunroof leading edge. But today I was inspecting the area and noticed a weatherstrip that runs the length of the roof, between the roof rails and the roof panel itself. And on both sides - more or less parallel to the sunroof - this weatherstrip is sunken down into the channel. I tried to maneuver it up but it feels as though it's become flabby with age and won't stay in place. I'm convinced this is the source of the noise. Anyone else ever notice this?

NorseWagon

No, minimal wind-noise from my E-450 Wagon.
What speeds do you hear it?
I hardly ever go over 80 mph but once at 90 I never noticed much or any,

konigstiger

Dealer, private sale? 60–90 days out, request dealer check it at no cost.

845

I plan to take it to the dealer I bought it from to have this issue checked out - the noise is pretty noticeable over 70, and at higher speeds (especially if the wind is blowing) it turns into a loud whistle. I had thought it was coming from the A-pillar or roof rail area, but actually it seems to come from the front of the sunroof on the right side. Yet the sunroof is closed, flush with the roof and no apparent leaks. Baffling.

And then there is the front suspension that sounds like it bottoms out on highway potholes - surely the shocks can't be dead at this low mileage?!

TennesseeZ4

Here is the MB write up about the load transfer from the shocks to the body via a rubber stopper, originally posted by Konigstiger: file: ///C:/Users/asus/Downloads/Suspension.pdf

Also a link to an older thread where this E class bump discussion is shared: https://mbworld.org/forums/e-class-w...oming-out.html The write up file is there along with the parts diagram of the front suspension.

My 2019 E450 wagon on 18" wheels rarely bottoms out here in Tennessee, however our previous 2019 E450 cabriolet on 19" wheels was very susceptible to the bottoming out and load transfer into the body. Dealer said it was designed to do that. Most unlike our last E class a W211 E350 sedan with sport suspension.

845

I read that thread - plainly a design mistake by MBZ, attempting to marry a compliant suspension with short travel and low-profile tires (my car has the AMG 19" wheels). I have to believe that it isn't good for the bushings or alignment, but someone must have signed off on it. If German chassis engineers came to L.A. and drove on our freeways they go home and rethink their entire suspension approach (supposedly that's why French cars like Citroens and Peugeots always rode so well - crap French roads).

I might check and see if Eibach makes an aftermarket spring for the car.