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Rough ride

Discussion in 'Model S: Driving Dynamics' started by Union Pacifik, May 16, 2016.

  1. Union Pacifik

    Union Pacifik New Member

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    Do other Model S owners experience a rougher than expected ride. Why is the 19 inch tire pressure so high at 45 psi? There is very little static deflection in the tire.
     
  2. sorka

    sorka Active Member

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    Heh, if you want to experience truly rough, just try a pre April 2015 P85D!
     
  3. AB4EJ

    AB4EJ Member

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    Rough ride is in the butt of the beholder. To me, the Tesla feels like a well-tuned sports suspension, like in a Mercedes sports car. Some people believe this is too stiff, and want a softer ride (get a Cadillac!). I like it.

    That said, I can imagine a possible new feature, where the adjustable suspension could give you a sport mode and comfort mode.
     
  4. mspohr

    mspohr Active Member

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    My air suspension is very smooth and quiet.
     
  5. sorka

    sorka Active Member

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    That's because the 90D has a nice soft cushy ride.
     
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  6. mspohr

    mspohr Active Member

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    How about a "Buick land yacht" mode?
     
  7. AB4EJ

    AB4EJ Member

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    Is there a significant difference in the ride between different Model S (70, 85, 60D, 90D etc.) assuming same suspension (adjustable or not) and tires/tire pressures? The 90D doesn't feel that soft & cushy to me (maybe it's my butt that's soft & cushy). I know what a hard ride is - I drove a 3/4 ton HD pickup for years. Now that's a stiff ride.

    BTW, the reason for the high tire pressures is for range.The harder the tires, the lower the rolling resistance.
     
  8. bkp_duke

    bkp_duke Member

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    That and the 5710 lb curb weight.
     
  9. sorka

    sorka Active Member

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    You're off by a 1000 lbs.
     
  10. sorka

    sorka Active Member

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    That's a complicated question and depends on not just the model but when it was produced. For instance, the 90D and P90D both currently have the same suspension. Firm and complaint. Nice for street driving. The P85D before April of last year was go cart stiff to the point that it can't conform over minor road irregularities causing it to lose tracking on hard cornering when hitting small bumps.
     
  11. mspohr

    mspohr Active Member

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    Curb weight
    1,961 kg (4,323 lb) (60)
    2,085 kg (4,597 lb) (60D)
    2,090 kg (4,608 lb) (70D)
    2,108 kg (4,647 lb) (85)
    2,188 kg (4,824 lb) (85D)
    2,239 kg (4,936 lb) (P85D)

    You'll have to add in the weight of passengers and cargo to get running weight.
     
  12. bkp_duke

    bkp_duke Member

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    OK. What's up with the VIN stickers listing that?
     
  13. sorka

    sorka Active Member

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    That's not curb weight.
     
  14. DSTAR

    DSTAR Member

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    Correction: the rough ride is in the butt of the buttholder :).
     
  15. jmsurpri

    jmsurpri Member

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    How old is your MS? Do you have air suspension? I had a rough ride in my MS with air suspension and 19s for the first couple months, but in the past couple weeks, it has really mellowed out. I have no idea why. Could be tires breaking in, or suspension components loosening up. I thought maybe the warmer weather here in Pacific NW could be a factor, but we're back to cold again and it still rides well.

    Also, I played around with tire pressure a lot to see if I could smooth out the rough ride I was having. It seemed to me that anything below 45psi would actually worsen the ride. Bumps seemed more violent and overall the ride was more bouncy, if that makes any sense. I think the suspension is really tuned for very low sidewall flex, which explains why the 21s with nil rubber ride surprisingly smooth.
     
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  16. Kdmn

    Kdmn Member

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    Hi,

    Do you still feel like it is a hard/stiff ride?
    Did they something to solve the issue? Struggling with the same...
     
  17. Snerruc

    Snerruc Member

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    The suspension on my coil car is definitely firm. It is slightly firmer than my previous BMW on run flats, but the handling is remarkable for a car of its size. While firm, it is very well controlled( more important to me) and not a comfort problem.
     
  18. pilotSteve

    pilotSteve Member

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    My new S 90D with standard 19s and coils has a much rougher ride than my 2012 S85 with 21" and air. Wow, what a difference! I am disappointed I didn't get air again, but I test drove coils/19" and it did not feel so stiff/harsh.

    I checked tire pressures (48-49 psi) and lowering them to 44 helpd a bit. This is with standard Goodyear M+S 19" tires. I wonder if changing tires give a noticeably better ride? I had Primacy MXM 19s as my winter tires on my 2012 and they were very quiet and good riding (with air susp). The 21 contiSilents were also very quiet and smooth.

    Any suggestion no for taming my 19"/coils for a smoother ride?
     
  19. theslimshadyist

    theslimshadyist NashVegas!

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    I can put my car into sport, standard, and comfort. Are these settings available on all cars or just the ones equipped with SAS?
     
  20. mspohr

    mspohr Active Member

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    Just sas.
     
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