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Why I returned my 2019 Tesla Model X?

Discussion in 'Model X' started by Kashif, Jul 9, 2019.

  1. Yinn

    Yinn Active Member

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    Bingo.

    But that’ll slow it, won’t 100% prevent it. Hard acceleration or acceleration under heavy load amplifies the problem. The issue is the design of the suspension geometry.

    Disclaimer: I don’t know if the Raven (with the new dynamic shocks) is a suspension revamp or just a swap. So I don’t know if this is true for the newest models.
     
  2. phatteus

    phatteus Member

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    I have a Raven and noticed this also. For me it’s most noticeable at 73-74 mph. No headaches for me so I won’t return, but it is annoying and I hope I get a warranty fix in the future. Cool analysis!
     
  3. Kashif

    Kashif Member

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    Thanks for the confirmation! Good luck for a possible fix in a future. I believe there is a lot of mitigation techniques such as using some dampening material or noise cancellation circuitry etc that can be employed as a engineering solution, but in my case Tesla did not take any action to address it.
     
  4. Yinn

    Yinn Active Member

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    Thank you for the confirmation.

    So even though you don’t own one anymore, hopefully you don’t mind if we lean on your expertise. What do you think the issue is? Do you think it’s related to the Model 3 motor or something else?
     
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  5. Saghost

    Saghost Well-Known Member

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    I'm not an audio expert in any way, and as I grow older the fact that I don't hear it in my Ludicrous Raven may not mean anything.

    So I tried the two free frequency analyzers I have on my phone. This is 70 mph in AP on a somewhat rough/loud asphalt freeway in Tennessee with HVAC on and stereo off, and neither shows anything that looks to me like a spike around 4k.

    FD60B624-CA9E-4DB6-AB8D-1B2CA4449027.png FD54E651-9BC5-4009-9216-B053C2189B92.png

    I was also really surprised that you're experiencing a constant frequency for such a wide speed range - you'd think anything drivetrain related would be proportional to the car's speed.

    I'm doing a fair amount of mostly freeway driving over the next couple days, so if there are conditions or settings that make it worse or free apps that might show it better, I'm willing to try to experiment with my car to see if I can duplicate your experience.
     
  6. KSilver2000

    KSilver2000 Member

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    What device are you using to record the sound and what sensitivity do you have it set to?
     
  7. Kashif

    Kashif Member

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    Thats interesting, do you have a dual motor system in your X? From Tesla feedback, it is related to high current drive in the front motor, but I can't speak on behalf of Tesla engineering, but that constant 4kHz doesn't really make sense to me. I have to physically start debugging to root cause it, but too bad I have returned the car. lol
     
  8. Yinn

    Yinn Active Member

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    They’re all dual motors in the X. What models did you guys have? Short range? Long range? Performance?
     
  9. Kashif

    Kashif Member

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    long range
     
  10. Kashif

    Kashif Member

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    You can use any recording device. In my case I used iPhone voice memo with default settings.
     
  11. Saghost

    Saghost Well-Known Member

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    IPhone Xs Max at device and app default settings as far as I know.
     
  12. Saghost

    Saghost Well-Known Member

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    As I said above, I have a Ludicrous Raven. That means it has the Performance dual motor system - switched reluctance front motor and the latest revision of the original big motor in the rear, rather than the smaller one that SR and LR cars have.
     
  13. Kashif

    Kashif Member

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    #33 Kashif, Jul 9, 2019
    Last edited: Jul 9, 2019
    Thanks, one thing I noticed is that in your first graph, noise seem really high that it can bury any 4kHz tone. The 4kHz tone, in my case, is around -80dB. May be you can try turning off HVAC and use a quiet road? If you send me your recording, I can also check it on my end using adobe audition.
     
  14. phatteus

    phatteus Member

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    I can add that I had a p90DL for 3 years and had no whine and this is a Raven Ludicrous also in Red. Maybe it’s just the red cars :)
     
  15. Tes1aOwner

    Tes1aOwner Member

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    Don't bet on it. Tesla won't fix anything they don't absolutely have to. They are in financial meltdown mode and have turned off every spigot they have. Service is a big one when the cars were designed faulty. I think it is going to take a class action suit to get them to repair things like the shudder.
     
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  16. X Fan

    X Fan Supporting Member

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    ^^^^
    geez, your new posting history is quite negative...
     
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  17. Tes1aOwner

    Tes1aOwner Member

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    I don't get your point. Are you implying I am not telling the truth?
     
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  18. verygreen

    verygreen Curious member

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    what was/is your average wh/mi on old and new car? My Nov 2017 build X 100D uses less energy than March 2017 X 100D I had. Then whenever you have 5 or 6 seats is a visible factor (due to weight change) and then P adds another extra weight consideration (and then the tire size too I guess).

    E.g. if we look at ABRP's recommended value for X 100D at 386Wh/mi at 65 MPH, that's waaay higher than I actually observe.
     
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  19. KSilver2000

    KSilver2000 Member

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    /s ?
     
  20. KSilver2000

    KSilver2000 Member

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    In case you haven’t been following the subject of shudder, Tesla is fixing the issue by replacing the half shafts and it seems to do the trick based on people’s experiences that just got it done.
     
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