TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Constant low whine present when car is parked

Discussion in 'Model S' started by ecarfan, Oct 4, 2016.

  1. ecarfan

    ecarfan Well-Known Member

    Joined:
    Sep 21, 2013
    Messages:
    10,316
    Location:
    San Mateo, CA
    A friend of mine has had his CPO S60 for about a year now. For the past 3 days he has noticed his car makes a constant low volume, high pitched whining sound. He hears it when the car is parked, plugged in or not plugged in. I just listened to it. It's coming from the front of the car, clearly audible standing next to the car inside the garage where it is parked, loudest when you get your head underneath the front end. I can't lateralize it. Audible while driving but only at low speeds and playing music drowns it out. If the car was located in a noisy place I probably wouldn't notice it if I was standing next to it.

    Anyone had this?

    Note: car got V8.0 a week ago, the sound started over the weekend, so several days after the software update. I think it is unlikely the sound is related to V8.0.
     
  2. ecarfan

    ecarfan Well-Known Member

    Joined:
    Sep 21, 2013
    Messages:
    10,316
    Location:
    San Mateo, CA
    My suspicion is that something is running that normally is shut off when the car is at feast.

    He has re-booted the IC and center display without effect.
     
  3. Hugh Mannity

    Hugh Mannity Mediocre Member

    Joined:
    Jul 31, 2014
    Messages:
    546
    Location:
    Vancouver, BC
    Battery re-conditioning is my best guess. My car does this often, very noticeable in quiet garage.
     
  4. ecarfan

    ecarfan Well-Known Member

    Joined:
    Sep 21, 2013
    Messages:
    10,316
    Location:
    San Mateo, CA
    The Model S I posted about has been making that noise continuously, as near as the owner can tell, (even in the middle of the night) for over 3 days. I nearly a year of ownership he had never heard the noise until the last 3 days.

    Does your car run the battery temperature management system continuously? I suspect not.
     
  5. evp

    evp Nerd

    Joined:
    Nov 28, 2014
    Messages:
    289
    Location:
    Arvada, CO
    If he just "upgraded" to 8.0, we must consider the possibility that it has something to do with the new "keep the interior temperature lower than 105 degrees" feature, possibly combined with a failed interior temperature sensor.
     
  6. Btr_ftw

    Btr_ftw Court Jester

    Joined:
    Dec 19, 2015
    Messages:
    760
    Location:
    Mass
    Can he pull the frunk to see if it's one of the coolant pumps? How is his vampire drain?
     
  7. rypalmer

    rypalmer Member

    Joined:
    Aug 22, 2014
    Messages:
    271
    Location:
    Canada
  8. habanero69

    habanero69 I Dont Need Cialis. I Drive an EV.

    Joined:
    Jul 29, 2016
    Messages:
    255
    Location:
    FLorida
    Probably a coolant pump. I have that sound from time to time. Vampire may also be a decent way to tell if it's "pump" or other big ticket item related too.
     
  9. ecarfan

    ecarfan Well-Known Member

    Joined:
    Sep 21, 2013
    Messages:
    10,316
    Location:
    San Mateo, CA
    I don't think that is it. The HVAC works normally so the interior temp sensor is likely working correctly.
    Ahah! That thread sounds like it is about the same noise, and it is the battery cooling system running. Of course the cooling system should not run continuously for over 3 days unless the environment is constantly extremely hot. That is not the case with my friend. We live in San Mateo CA just south of San Francisco near the coast. For the past several days the daily highs have been 70 or less. Nightly lows in the 50's. He parks his car in his garage at night. He drives about 60 miles roundtrip to work on the SF Peninsula. So temps have been quite moderate and there is no reason for the battery cooling system to run continuously. Also, he's owned his car for a year and it has never made this sound continuously before. In fact the sound is new to him.

    I think the battery cooling system in his car "glitched" and remained on continuously for some reason.

    And he just emailed me to say that when he went into his garage this morning at 5:30 to check the car the sound was not present. First time in well over 3 days he has not heard it when standing next to his car, day or night. It's stopped.
     
  10. Btr_ftw

    Btr_ftw Court Jester

    Joined:
    Dec 19, 2015
    Messages:
    760
    Location:
    Mass
    Also have him plug the car in to charge to see if he hears it again. A friend of mine when he charges at 110v the pumps turn on at high speed for a brief point in time, they then spin at regular speed as time goes on
     

Share This Page