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Humming sound when car is on or off

Discussion in 'Model S' started by quack724, May 21, 2019.

  1. quack724

    quack724 Member

    Joined:
    Aug 23, 2016
    Messages:
    14
    Location:
    Dublin
    Jan 2016 delivered MS 85D on ver 2019.16.1.1 . Today I noticed an audible humming noise inside cabin while driving and I recorded the same sound (below) when parked near front wheel and car off . I even tried to power off through the MCU and the hum did not go away. no HVAC on. Car is not plugged in . Car always parked inside a garage at night and I"m guessing temperature inside the garage at 75 degrees F.

    Dropbox - model S.m4a - Simplify your life

    I did supercharge the car today before I noticed this sound but other than that, I don't recall anything unusual happening to the car before I noticed the hum. Any ideas what this sound means?
     
  2. ucmndd

    ucmndd Active Member

    Joined:
    Mar 10, 2016
    Messages:
    2,391
    Location:
    California
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