I think something is wrong on my 1st (non Max), but I am not sure. Now, I know there is an external speaker humming to alert pedestrians. This speaker grows in pitch as your speed increases (there are videos from VW for ID3 where you can hear it). The problem I have, is that I can hear this speaker inside the car, and it never changes pitch. From 45-55km/h it is very intense in volume, but no change in pitch from the low hum it initially has. I have complained to the dealer, who in turn claim they hear nothing wrong. I took the technician with me on a ride, and he claims two things: the sound I hear is normal (i have not heard it that intense in any of my other EVs, including an ID3 Max), or the sound he hears is from the wheels. I don't believe the second since I hear the same "hum" even driving on gravel roads.
The speaker is supposed to turn of at 30km/h AFAIK, so it makes no sense that I hear the hum at 70km/h +.
It might be the electric motor, of course, but if I floor it i also hear a second high pitched hum which I am familiar with from my other EVs. My "hum" sounds like someone is blowing into an empty bottle and it sort of resonnates inside the cabin. I have an audio extract from my phone if anyone knows how I can attach it (MP3).
If the sound is supposed to be there (we will test drive a second ID4 with the same tires), then I am really disappointed in the sound insulation.
Edit:
Link from my dropbox
Edit again: Am I just insane?