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      08-24-2011, 08:21 PM   #1
nrrm1127
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Unhappy E90 LCI Sport Package Softer?? Vs. 2008 328i sport package

Hi Everyone -

I really need your help on this question. Just bought a 2011 E90 LCI 328i with sport/cold weather/premium/convenience/value pkgs. I also just turned in my 2008 328i E90 with sport and cold weather and noticed an immediate difference in the way the two cars drove. The 2011 seems a lot softer and squishy even with sport package (it's got the seats, wheels, etc.), did BMW soften up the sport package? Can anybody help with this issue? The car seems too soft for sport package also the OEM rubber is different on this car than it was on the 2008. On the 2011 I've got Bridgestone RE050AI while the 2008 328i had Bridgestone RE050AII. I did some reading and saw that the RE050AI is apparently a much softer tire. It seems to behave weird under cornering and and gets squishy. I've raised the tire pressures to 42 PSI all the way around which helps a little bit, but not entirely. I have a set of BFGoodrich g-Force T/A KDW2's in the garage (I used to have those on instead of my Bridgestones) which I might try next. Any help would be greatly appreciated before I make a big stink to my dealership. Thanks guys!

- R
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      08-24-2011, 10:14 PM   #2
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Should have swapped out the run flats before picking up the car
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      08-24-2011, 11:04 PM   #3
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I believe BMW added the Sachs dampers on the 2011 models, making the suspension a lot less harsh, so maybe that is what you are experiencing. I have driven MY2011 E90's with Sports Package and 18" wheels, and the ride is softer than my car with 17" wheels.
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      08-24-2011, 11:41 PM   #4
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Really? You're kidding... Can you tell me more about this?

Quote:
Originally Posted by beemer3 View Post
I believe BMW added the Sachs dampers on the 2011 models, making the suspension a lot less harsh, so maybe that is what you are experiencing. I have driven MY2011 E90's with Sports Package and 18" wheels, and the ride is softer than my car with 17" wheels.
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      08-25-2011, 11:33 AM   #5
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How many miles were on your old tires? Just going from the old tires on your old car to new tires on the new car can cause a big difference in handling, especially in firmness/steering response, even if everything else is the same.
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      08-25-2011, 11:37 AM   #6
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The old tires had about 7/32nds of tread left, but still there's some kind of a tangible difference. I'm thinking that perhaps the suspension just needs time on the road to seat in properly and with any luck the car's character will change with time. Though I will be changing over to my BFGoodrich's next week.
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How many miles were on your old tires? Just going from the old tires on your old car to new tires on the new car can cause a big difference in handling, especially in firmness/steering response, even if everything else is the same.
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      08-25-2011, 01:25 PM   #7
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Quote:
Originally Posted by nrrm1127 View Post
On the 2011 I've got Bridgestone RE050AI while the 2008 328i had Bridgestone RE050AII.


- R
The RE050A I is the 2nd Generation runflat and is less harsh than the older II model

(3rd Generation runflats are fitted to the F20 1 Series and F30 3 Series and are Bridgestone S001 Run Flats)



Lots complained the original ones were too hard, but when changed others then complained they were no hard enough
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      08-25-2011, 01:29 PM   #8
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Quote:
Originally Posted by beemer3 View Post
I believe BMW added the Sachs dampers on the 2011 models, making the suspension a lot less harsh, so maybe that is what you are experiencing. I have driven MY2011 E90's with Sports Package and 18" wheels, and the ride is softer than my car with 17" wheels.
BMW replaced Bilstein with Sachs dampers from September 2009 production on the E90 LCI
But Sachs was also used for most periods on the pre-LCI model
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      08-25-2011, 03:52 PM   #9
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Oh ok guys, thanks for your help! Turns out the culprit might actually be tires. I called Bridgestone North America and spoke to a tech engineer who has driven both kinds and said the speed rating for the tires should be W, but BMW installed both V and W speed rated tires. V's are rated for 149 MPH and W's are rated for 168 MPH. Additionally, he said that there's a big handling difference between V and W because of the compounds which would explain the squishy nature of things. Bridgestone described it as a "big difference" which is disappointing that BMW failed to notice this issue. It compromised my handling and made me wonder if I had bought a car with a bigger problem.

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Originally Posted by E90Fleet View Post
BMW replaced Bilstein with Sachs dampers from September 2009 production on the E90 LCI
But Sachs was also used for most periods on the pre-LCI model
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      08-25-2011, 06:12 PM   #10
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Quote:
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BMW replaced Bilstein with Sachs dampers from September 2009 production on the E90 LCI
But Sachs was also used for most periods on the pre-LCI model
Are you sure? I thought Sachs dampers was only introduced on MY2011 E92/E93 (3/2010 onwards) and MY 2011 E90 (3/2010 onwards), and were not on any 2010 models produced from 9/2009.
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      08-27-2011, 03:46 PM   #11
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I had a 2011 328i loaner for a few weeks [non-sport] and it was much softer and quieter than my 2008 328xi [non-sport]. I don't know if there were any suspension changes over the years, so I assumed it was the tires. not sure which I liked better, but on the mean streets of NYC I think softer may be better.
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      08-31-2011, 10:00 AM   #12
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Well guys I found out through a BMW shop foreman who did some research on my behalf and read a TSB that in fact the 2011 Sport Package has had softer shock valving applied to its suspension setup because customers complained it was "too harsh." Quite frankly I find that ridiculous as even with my BFGoodrich g-Force T/A's back on its still has some roll. The whole reason you buy sport package is not for comfort, rather it's for handling. It's not called the comfort package... This is somewhat annoying as I had no expectation that the car would handle any differently than my 2008, but apparently it does. I suppose I will live with this for now, but eventually switch the shocks out for Koni Yellows or some sort of Dinan setup. I'll wait until the suspension breaks in (since the car only has 285 miles on it) for a few thousand miles. Thanks for your input everyone!
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      08-31-2011, 01:20 PM   #13
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Quote:
Originally Posted by nrrm1127 View Post
Well guys I found out through a BMW shop foreman who did some research on my behalf and read a TSB that in fact the 2011 Sport Package has had softer shock valving applied to its suspension setup because customers complained it was "too harsh." Quite frankly I find that ridiculous as even with my BFGoodrich g-Force T/A's back on its still has some roll. The whole reason you buy sport package is not for comfort, rather it's for handling. It's not called the comfort package... This is somewhat annoying as I had no expectation that the car would handle any differently than my 2008, but apparently it does. I suppose I will live with this for now, but eventually switch the shocks out for Koni Yellows or some sort of Dinan setup. I'll wait until the suspension breaks in (since the car only has 285 miles on it) for a few thousand miles. Thanks for your input everyone!
Interesting, didn't know there was actually a TSB for this. Did BMW only apply the softer shock valving on the Sports Package equipped models or also for Non Sports Package models? Also, was this only for 2011 models?
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      08-31-2011, 01:48 PM   #14
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Yes, the 2011s got softer suspension. Apparently a lot of it had to do with too much shock being transferred to the rim and suspension due to the stiff RFT sidewalls. BMW came under fire publicly when several models of oem 19" wheels kept cracking on potholes. I'm not sure they softened it up because people couldn't handle the more than soft enough sport suspension.
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