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

Troublesome noise at ~50MPH

Discussion in 'Model X: Driving Dynamics' started by neisner12, Mar 29, 2016.

  1. neisner12

    neisner12 Member

    Joined:
    Sep 29, 2015
    Messages:
    33
    Location:
    Menlo Park, CA
    I have a list of cosmetic things that need work on my X that I picked up 10 days ago. Also my brakes will produce a high-pitched squeal occasionally. However, one is more worrisome and wondering if anyone has experienced it.

    When my car accelerates normally to around 48-51 MPH, there's a grinding noise that appears to be coming from the passenger side back wheel. It lasts a few seconds if I stay in that speed range. I was able to reproduce consistently this morning and had been hearing for a while but thought it might just be something in the trunk. I did note that if the noise happened and then i slowed down to like 40 MPH and then accelerated through 50 MPH, then it wouldn't happen. It seems to be happening when going from low speeds to 50 MPH.

    It's hard to hear in this video with the background noise, but it starts as the car hits 49-50 mph.
     
    • Funny x 1
  2. vandacca

    vandacca Active Member

    Joined:
    Oct 13, 2014
    Messages:
    1,960
    Location:
    Hamilton
    Sounds like rattling to me, as if something is loose and 50mph generates the resonant frequency required to make it vibrate. It may be something that's inaccessible to you, but I would go over everything near the area and ensure it's all tied down firmly, especially anything in the lower trunk.

    I suspect you won't find anything and it's something that Tesla is going to have to investigate.
     
  3. CaliX

    CaliX Member

    Joined:
    Feb 14, 2016
    Messages:
    359
    Location:
    Los Angeles
    That grinding noise could be your rotors being scored. My X in back in the shop right now my brake pads and rotors are being replaced due to scoring. There's only 30 miles on my car.
     
    • Funny x 1
  4. neisner12

    neisner12 Member

    Joined:
    Sep 29, 2015
    Messages:
    33
    Location:
    Menlo Park, CA
    I took it to my local service center and we took it for a test drive. Technician saw that it had to do with the spoiler adjusting at that speed. He lubricated it and it hasn't been making the noise. However, they'll do some more stuff when it goes in for a variety of "fixes" later in April.
     
    • Informative x 2
  5. ernies

    ernies Member

    Joined:
    Mar 16, 2015
    Messages:
    106
    Location:
    Marysville WA
    #5 ernies, Jun 20, 2016
    Last edited: Jun 20, 2016
    Mine will make that noise when sitting in the garage waking up as the spoiler stretches and yawns, but becomes more pronounced when I hit 45 mph and the spoiler changes positions. It is making a grinding noise then there is a rattle. Waiting for a call back from the SC. Not optimistic that it can be fixed quickly. It has been going on for more than a month, but I do not like the loaner S's as my wife won't ride in them.
     
  6. Roentgen

    Roentgen Member

    Joined:
    Apr 1, 2016
    Messages:
    157
    Location:
    Southern California
    Sounds like the spoiler for sure. Mine is misaligned too, although I don't notice it at speed - only when the spoiler goes from closed to open. The technician said it was definitely the spoiler when I mentioned the noise, and pointed to where the spoiler rubs against the glass when he came out to replace our 3rd row seats. It is fixable, but will unfortunately need a trip to the SC to get it done. Mine sounds like it's getting a little worse now, too, and you can see the groove it's scraping on the spoiler leg.
     
  7. ernies

    ernies Member

    Joined:
    Mar 16, 2015
    Messages:
    106
    Location:
    Marysville WA
    EXACTLY! I too can see the scratched area. Timing not great as I will have to do a semi-hurried road trip. Don't want to make it in my wife's car. Also, not confident that they will have needed parts when I take it in.
     
  8. Phil Seastrand

    Joined:
    Mar 4, 2014
    Messages:
    288
    Location:
    United States
    This happened to mine and they had to replace the affected strut, glass insert and top of the spoiler. It turns out that they need to remove the painted skin to replace the strut. Removing it destroys it since it is glued down. When they replaced mine, they did a poor job of gluing the new skin down so they are going to have to replace it again.
     
  9. Roentgen

    Roentgen Member

    Joined:
    Apr 1, 2016
    Messages:
    157
    Location:
    Southern California
    Uh oh. When you say "glass insert" do you mean rear windshield? Had mine tinted with a pricey tint....
     
    • Funny x 1
  10. Phil Seastrand

    Joined:
    Mar 4, 2014
    Messages:
    288
    Location:
    United States
    No, there is a small triangle piece of glass that contains the hole for the strut. This small piece was also replaced. The main hatch glass was untouched.
     
    • Like x 1
  11. ernies

    ernies Member

    Joined:
    Mar 16, 2015
    Messages:
    106
    Location:
    Marysville WA
    Oh gosh...there goes the Xpel and Ceramic Pro???? I hope not.
     
  12. FarmerDave

    FarmerDave Member

    Joined:
    Sep 3, 2015
    Messages:
    338
    Location:
    Martinsburg, PA
    My spoiler did the same thing. The SC adjusted it and it has been quiet since.
     

Share This Page