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 and becoming a Supporting Member. For more info: Support TMC

What's that noise?

Discussion in 'Model S: Driving Dynamics' started by hmmm, Jan 11, 2017.

  1. hmmm

    hmmm Member

    Joined:
    May 12, 2015
    Messages:
    677
    Location:
    Driver Seat
    Sorry...no audio file available, hopefully this will make sense:

    Whenever I step on it hard, I hear a "clunk clunk clunk..." noise towards the rear axle. It sounds like it somewhat tied/related to a moving part based on the noise pattern as it the "clunks" are getting faster and faster as the car accelerates. It doesn't happen at the very start, but it in 40mph and above range. As soon as I get off the juice, the noise stops instantly.

    Any idea? Based on how it sounds, I was thinking it may be traction-control related, but it seems a bit loud and it also is not audible from 0-40ish, so that doesn't seem right either. Slip start disabled and dry pavement. This is a P90DL It happens in both Sport and L mode.

    I am planning on swinging by a SC soon, but wanted to run this by this always knowledgeable crowd first.
     
  2. Andyw2100

    Andyw2100 Supporting Member

    Joined:
    Oct 22, 2014
    Messages:
    6,564
    Location:
    Ithaca, NY
    I'd swing by the service center sooner rather than later. :)
     
  3. hmmm

    hmmm Member

    Joined:
    May 12, 2015
    Messages:
    677
    Location:
    Driver Seat
    So, I installed 2.52.22 last night and since then the noise seems to be gone...Placebo effect in full swing possibly but we shall see. I'll give it another couple of days of "spirited testing" first.
     
  4. hmmm

    hmmm Member

    Joined:
    May 12, 2015
    Messages:
    677
    Location:
    Driver Seat
    So, I went by "my" service center and they took the car for a spin...outcome: "yes, we want to take a look at this...here are the keys to a loaner...".

    Glad I stopped by...,
     
  5. cookpwr

    cookpwr Member

    Joined:
    Jan 21, 2017
    Messages:
    25
    Location:
    Portola Valley, CA
  6. hmmm

    hmmm Member

    Joined:
    May 12, 2015
    Messages:
    677
    Location:
    Driver Seat
    Thanks for sharing, my noise is definetly not in the "normal noise" category :)

    On an loosely related note, I noticed this morning that the service center disabled remote access to my car via the mobile app. Is that standard practice? That's a first for me and my paranoid side is wondering whether that's a sign of many upcoming joy rides above and beyond what they would need to test the car?
     
  7. Andyw2100

    Andyw2100 Supporting Member

    Joined:
    Oct 22, 2014
    Messages:
    6,564
    Location:
    Ithaca, NY
    Definitely standard procedure. It's a safety issue.
     
  8. hmmm

    hmmm Member

    Joined:
    May 12, 2015
    Messages:
    677
    Location:
    Driver Seat
    Interesting...it's not like one could do a lot of things to the car remotely but it's good to know.
     
  9. Andyw2100

    Andyw2100 Supporting Member

    Joined:
    Oct 22, 2014
    Messages:
    6,564
    Location:
    Ithaca, NY
    Even just honking the horn while someone was working on the car could be dangerous, not to mention annoying as hell! I definitely understand why they disable remote access.
     
  10. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

    Joined:
    Mar 8, 2012
    Messages:
    13,235
    Location:
    Texas
    Standard practice. Early on at least one owner complained that the car was being driven. Also as Andy says, it's for safety.
     
    • Like x 1
  11. Kurt'sX

    Kurt'sX Member

    Joined:
    Nov 1, 2016
    Messages:
    75
    Location:
    San Diego
    Took my X in for service and noticed the same thing. SC also unplugged my front and rear after market cameras, which would have allowed me to take a look at what was going on while the car was behind closed doors. I was told they do it for safety reasons, not wanting a customer powering up the car while they are working on it. Makes sense......
     
  12. hmmm

    hmmm Member

    Joined:
    May 12, 2015
    Messages:
    677
    Location:
    Driver Seat
    I picked up my car this morning (they turned things around very quickly and the overall service experience was perfect. I am the first one to complain when things don't go smoothly, so major kudos here.

    On to the fun stuff:

    1- I am glad I stopped by...front-right half shaft replacement.
    2- Placebo effect is/was real
    3- Turning Off the app makes sense and yes, I was a bit paranoid on that one.
     
  13. theslimshadyist

    theslimshadyist NashVegas!

    Joined:
    Jan 4, 2016
    Messages:
    1,005
    Location:
    Franklin, TN
  14. Evee

    Evee Member

    Joined:
    Nov 24, 2015
    Messages:
    191
    Location:
    Las Vegas
    I have this same rattle sound. Gonna take to my sc.
     

Share This Page