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Brand new S90D (2/17). Experiencing very bumpy ride since yesterday. Regular suspension.

Discussion in 'Model S' started by bakchod87, Mar 3, 2017.

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  1. bakchod87

    bakchod87 Member

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    Sep 25, 2016
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    Location:
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    So I picked up the S90D on 2/17. Love the car. Amazing ride quality and excellent handling until yesterday. I have regular suspension and didn't get the SAS. I have driven 700+miles so far and had no issues. My driving is on regular highway and well laid local roads that I have been driving on for years. Since yesterday I started feeling bumps while driving going on even minor depressions on the road. I had never felt them in my Model S before or even in my old Honda. Now I am feeling the bumps a LOT. Even a small depression or bump on the road that the car was handling like a champ is very rough when I go over it. The car almost shakes and the ride quality suddenly has become very rough. Has anyone experienced this before? Any ideas or thoughts? Will take it to the SC asap to have it looked at.
     
  2. byan1232

    byan1232 Member

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    Possibly something in your tires? Any warnings from the tpms?
     
  3. bakchod87

    bakchod87 Member

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    Nope no warning from the TPMS. The tire pressure was normal. I checked before driving this morning. Cold tire pressure was 45 for front right, 42 for front left, 45 for rear left and 43 for rear right.
     
  4. Nicola_Won

    Nicola_Won We're on the cusp of an energy revolution.

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    I had something similar. Driving v. slowly across a bridge was like an oscillation as every small bump felt like a speed hump to the point of the car bouncing practically. It was a bit scary. Haven't had it since. I pumped up the tyres to 45psi also so maybe that fixed it. I get a bit of a vibration on the steering wheel at high speeds but that's probably just wheel balancing.
     
  5. MorrisonHiker

    MorrisonHiker S 90D 2017.34 2448cfc

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  6. pilotSteve

    pilotSteve Member

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    I too found my S 90D ride (coils, with standard 19" wheels and Goodyear M+S tires) to be quite rough. I had a loner S P90DL with Air suspension and 19" wheels/tires that was even ROUGHER than mine! I was surprised.... hoping that air would make the ride better.

    However after 4000 miles my ride is getting a bit less harsh. Some replies to my previous post suggested it is the tires breaking in. In any event it does seem to be getting better.

    OTH today I have a X P90D service loaner (with only 450 miles) with 20" tires and Air suspension. Wow, it is ROUGH as a corn cob! Seriously, the performance is awesome but it makes me glad to own my S.

    I am also going to research the best riding/quietest ride 19" tires and see if switching brands will make me happier. Possibly Primacy MXM? Or ContiSilent?
     
  7. jelloslug

    jelloslug Active Member

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    Can you feel it
    I have driven with the 19" Primacy tires and they did not seem to be much different than the Goodyears.
     
  8. Walpan

    Walpan New Member

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    Aug 24, 2017
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    I just purchased MS 75D about 2 weeks ago and am experiencing the same rough ride. Some of the comments indicate it might be a break in period for the tires. Have you noticed any change since your first post?
     
  9. jelloslug

    jelloslug Active Member

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    Check your tire pressure. Mine was way too high once and the ride was horrible.
     
  10. IT Geek

    IT Geek Member

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    I think two things had to break in on my S90D. One was the suspension and the other was the seats. The ride on my car started out rather "harsh" but things have quieted down quite a bit over the past several months. Michigan roads are still horrible (compared to every other state I've driven in) so there's that, but the car does drive much better now for me. Tire pressure can make things worse though for sure. So be sure you're not over-inflated.
     

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