Audible hum at 80MPH on all 2019 E-class sedans?




I'm wondering if anyone else has encountered a loud or audible hum at 80MPH on your W213 E-class sedans. On my new 2019 E300W4, and on a loaner 2019 E300W4, both make a humming sound at 80 MPH. On the loaner, it was almost unbearably loud. It's a few cents off a 3rd octave A natural/B flat. Same pitch range as an open A string on a cello. On my car, it's definitely noticeable, but not nearly as bad. The loaner was a luxury edition, my car is a sport/AMG line. I can't decide if it's a wind noise (it never changes in pitch, but goes through modes as you approach, exceed, or back off 80MPH), or something inherent to tire pressure and therefore a resonance in the wheel/tire combo. If you go 75, no noise. 85, no noise. 80, and you can definitely tell it's there. Let me know if you hear it on yours.




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i had the C and the resonance / howl (not tyre tread roar or road noise) from the tyres was Very annoying. When I asked oassengers they had no idea what I was walking about.
Incidentally, 6000 miles on my wagon and the tires are still quiet and pliant and handle well. If I have one nagging itch, it's just that the Pirellis don't have as handsome a profile as the Michelins.



I have the exact same tires. Absolutely no singing or abnormal sounds. Very quiet tires.