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BMW 3-Series (E90 E92) Forum
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Bouncy ride at high speed.!
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10-01-2008, 06:43 PM | #23 |
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The problem with the xi is the ride height but also the spring and the spring constant being used. It is way too soft. Most sport springs are "stiffer" linear or progressive. I also think our shoocks/struts suck too. Don't get me wrong, the entire suspension sucks as a whole.
If I had a winter vehicle I wold have got an E92 and and not an e90 xi. The KW kicks ass because the spring is optimized to work with the shock. The shock is "jetted" as a sport shock. |
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10-02-2008, 11:07 AM | #24 | |
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I have to be honest too, I bought the XI thinking it was more like an Audi Quattro etc where the suspension performs well with the "sport" (um, "ultimate driving machine"?!) nature of the car. In reality, the 335XI handles well compared to a Camry but not compared to real sports sedans runnings up to $50k. No way. The ride is also much too harsh. If KW can make this thing avoid the massive bangs on bumps (bottoming out shocks etc) I fail to understand how BMW engineers could have let this car go out the door as approved for mass consumption by the public. I need to find and fill out one of those satisfaction surveys to let them know I'm considering Audi etc for the next ride if they can't get it together.
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10-02-2008, 02:21 PM | #26 |
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With the XI stock suspension the stock Audi's have the XI beat. But they aint no picnic either. With my KW's I routinely beat the A4 2.0 and 3.2 and battle with the S4.
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10-02-2008, 02:30 PM | #28 | |
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I just raised my ride, where I can get almost one finger between the tire and wheel well on non RFT 18's with default KW settings. Its firm but with no harshness.
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10-02-2008, 03:48 PM | #29 | |
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I'm on 18" 162s and stock RFTs for now (new car, 5/08). So if we voted on the cause of the aptly-named "Big BANG" front suspension bottoming of the XI, what is the consensus for cause between tires and suspension? 60% caused by RFT and 40% stock shocks? thanks BB
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10-02-2008, 04:11 PM | #30 | |
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My new Pilot A/S are much smoother on small bumps and no big bang on big bumps. The car still wallows at high speed. Comparing the A4/S4 to our car, I was talking more suspension than outright acceleration. We got screwed....S5 is looking nicer all the time, especially driving at speed. I think we all can safely say the I6 TT kills just about everthing on the road in the same price range or less. |
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10-02-2008, 09:02 PM | #31 |
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I'm going to say harshness/stiffness on the ride are 80% RFT, the bottoming out is 75% suspension. You'll have to change them both out to realize the benefits.
I changed out my tires first and was pretty happy. Suspension a month later after taking a light sweeping corner on the freeway when I hit a deep pot hole at 65Km/h that almost flipped the f'n car over.
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10-04-2008, 02:42 PM | #32 |
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S5 drives like crap. There is this st. wheel vibration that many cars are experiencing and audi hasnt fixed - look on some of the forums and I believe it has been published. The materials and finish are nice thou.
My recommendation is to swap the tires first, see if you like the difference. If not, then go for the suspension.
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10-04-2008, 07:59 PM | #33 |
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Yeah but then what, HPFP, then it fails, then what, fuel tank gauge that is f*cked, leaking windshield washer tank, then what, blown turbos.
As much as I love driving my car I am quickly losing confidence in it. |
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10-04-2008, 08:46 PM | #34 |
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My car is almost 2" (50mm) lower than it was as a stock Xi (thanks to the KWV3's). I ditched the RF's in favour of 19" PS2's just before I changed the suspension out .... . Most (if not all) of the banging is due to RF's. That being said the car cannot be safely driven in any sort of aggressive manner with the stock suspension.
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10-04-2008, 10:11 PM | #35 |
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Forget those other issues. They are covered under warranty. I know it's painful to have to drop the dough for the coilovers but you'll be glad you did.
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10-05-2008, 03:08 PM | #36 | |
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2oo7 e90 JB 328xi/// with too many mods!?!?! check out my ride = http://www.e90post.com/forums/showthread.php?t=246531 2oo8 e90 SSII ///M3 *the silver ghost* = http://www.m3post.com/forums/showthread.php?t=409084 |
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10-05-2008, 04:58 PM | #37 | |
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10-05-2008, 05:22 PM | #38 | |
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10-05-2008, 07:46 PM | #39 | |
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2oo7 e90 JB 328xi/// with too many mods!?!?! check out my ride = http://www.e90post.com/forums/showthread.php?t=246531 2oo8 e90 SSII ///M3 *the silver ghost* = http://www.m3post.com/forums/showthread.php?t=409084 |
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10-05-2008, 09:46 PM | #40 | |
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We'll see. Diff car for sure but perhaps now is the time to get an M since I am not getting younger and gas isn't getting cheaper. The way I drive it'll be a wash anyway. |
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10-06-2008, 08:30 PM | #41 |
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In that case, g'luck on with the shopping - I'm jealous already.
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