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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

    Aug 23, 2016
    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

    Mar 10, 2016
    • Like x 2

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