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Model X: Pictures of the inner tire foam insert

Discussion in 'Model X' started by wanaxnow, Aug 28, 2016.

  1. wanaxnow

    wanaxnow Member

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    We have the 20" Cont's on our Model X. Today I found a huge construction nail head stuck in the middle of our drivers side tire. I took it into Goodyear (as they were the only ones open today) and had them assess as to whether it could be patched. Glad it was as it wouldn't be too cheap to replace. The tire came off and I was optimistic. I heard one of the guys working on my tire state that "he's never seen anything like this in the 4yrs he worked there." I asked to come over and saw what he was talking about. I've seen a few threads on this on TMC since discovering this. But clearly this isn't something your delivery specialist tells you. For those who haven't seen it, it appears we have an inner-lining of foam in all of our wheels. It is glued in petty hard, but this is the first I've seen of this as well. Supposedly it helps dampen road noise by 8 dB. The guy had to cut a small patch of this away to get to the hole in the tire. But just fair warning for those of you who run into this. If you drop by somewhere to get your wheels replaced, be sure to be aware of the foam insert. From my reading it appears that you can ask Tesla to replace it if needed? I don't know what it would be like to "not" have it, but something to be aware of.


    IMG_1090.JPG IMG_1091.JPG
     
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  2. Hitman007

    Hitman007 Member

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    Cool! Thanks for sharing! So I assume if I want to switch to Michelins someday I can have Tesla insert the foam.
     
  3. wanaxnow

    wanaxnow Member

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    It is something definitely be to be aware of. It caught me off guard when I saw this today. Somewhere on TMC someone discussed Tesla charging you $25 to have the foam insert replaced. I have to drop our X off on the 6th to have our 3rd row replaced. I will be asking my service specialist about this finding and how to address the replacement if needed.
     
  4. Hitman007

    Hitman007 Member

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    If you remember ask them if they could put the foam in any brand of tire of the same size.
     
  5. wanaxnow

    wanaxnow Member

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    I'll definitely let you know..
     
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  6. The Lorax

    The Lorax Member

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    Now that I know that it is there, I'd like them to take it out and clean it during the annual service inspection. :)
     
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  7. NikeWings

    NikeWings Member

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    Wow, when they told me I had foam in my tires, I was envisioning Gillette foamy, not a slice of foam.
    Thx for the pics.
     
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  8. wanaxnow

    wanaxnow Member

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    I was thinking about this on the way home from Goodyear and maybe it is just me. I definitely appreciate the additional details placed into this car. But now this seems like just "one of those things" to remember and deal with when the time comes to have the tires replaced for one reason or another. Just thinking about getting the replacement installed at a Discount Tire or something then needing to set up an appointment at Tesla only to have the tire removed and re-insulated..
     
  9. NikeWings

    NikeWings Member

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    I'll be at the SvC tomorrow morning to swap-a-roo 2 borrowed wheels/tires after a double blow-out last weekend. I am going to inquire more about this foam stuff since they gave it as the reason for my pricey replacements. And yes, I did expect it to be oozing out of the sliced sidewalls but when I asked the roadside guy why not, he didn't know what the foam heck I was talking about. Installed my wheels and had me on my way.
     
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  10. wanaxnow

    wanaxnow Member

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    If you could ask and let us know what the response is.. When I was waiting at Goodyear I ran across this one post Flat Tire. Made me understand this isn't unique to the X.
     
  11. NikeWings

    NikeWings Member

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    Will do wanaxnow........
     
  12. Hitman007

    Hitman007 Member

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    So I wonder if you just put regular tires on with no foam what the real difference in road noise would be? Is it really 8 db? And how much is 8 db. I don;t think I would hear that over the stereo!
     
  13. wanaxnow

    wanaxnow Member

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    Agreed. I read that datapoint somewhere. Purely conjecture at this point, but I was thinking the same.
     
  14. Pandamoanium

    Pandamoanium Member

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    This actually happened to one of our cars also. The tire specialist mentioned it is the newest type of tire for luxury vehicles and the manufacture actually states these tires are not to be patched, irregardless of puncture size/location. So the fact they patched it without telling you that could get them in a lot of trouble. Technically they can be at fault for patching the tire without consent and disclosure from you if something were to happen from that point forward like the tire blowing out or causing an accident because you couldn't control it properly due to the tire.

    This is one thing I do not like about these new cars, and will not get new tires that have this feature.
     
  15. Mknac

    Mknac Member

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    Do they do this to Model S too? I just picked a MS 75 and the DS didn't mention a tire foam insert to me.
     
  16. dhanson865

    dhanson865 Active Member

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    #16 dhanson865, Aug 28, 2016
    Last edited: Aug 28, 2016
    A rule of thumb in audio is that for every 3 db the sound pressure doubles. As in sound for sound 8 db increase is about 5 times more sound pressure.

    Another rule of thumb is 10db increase doubles the perceived loudness. So even though it is 5 times more sound pressure it might only sound twice as loud.

    Which means it'd either go from inaudible to loud or from loud to unbearable or some similar increase.
     
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  17. wanaxnow

    wanaxnow Member

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    Do you think this foam was installed by the tire manufacturer (in this case Continental) or by Tesla? I was going to do some research on this. I honestly have never seen this before.
     
  18. wanaxnow

    wanaxnow Member

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    My wife and I were just talking about this over dinner. We don't remember hearing about this either and due to the fact that the foam lines the inner lining of the tire makes it pretty hard to determine whether it is really there or not on other makes, models, or even your own tires.
     

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