My 2018 August delivery 75D seems to be making this mechanical gear noise coming from the front motors during 0-40. No hard acceleration just normal acceleration. I'm not sure if it was there before or not or if it is normal. It sounds like a transmission or differential gearing noise or the mechanical whining noise that some ICE cars have when reversing however a lot more faint. It slowly increases in pitch as you increase in speed from 0-40 and by the time you hit 30-40mph the road noise blocks it out. Its very very faint so I think its probably normal? Just wondering if anyone else has it in their X or S. Thanks in advance. When I coast in neural at 30 mph you can hear it the best. So I know it is not the motor or the regen braking. Any ideas? Its too faint to capture on recording.
Here is a youtube video of the whine in an ICE car. It is a lot more faint probably 5-10% as loud as that.
Here is a youtube video of the whine in an ICE car. It is a lot more faint probably 5-10% as loud as that.