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      03-22-2011, 09:21 AM   #1
tpipta
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Suspension question, E92 LCI 335i m-sport

Good morning everyone,

I'm a diehard gear head and have a total of three 335i's (in addition to lots of other fun cars), but the latest 2011 335i I leased about 3 months ago is absolutely miserable to drive. I've taken the car into service a few times now to have them do a once over on the car, but they say everything is fine. I've had run-flats on all of them, which I know is far from ideal, but none of them have felt this disconnected.

Segwaying into my question, is there any difference between pre-LCI suspension (struts, spring rates, sway bars, anything) and/or is there a difference between the sport and m-sport? I also have 19" 230's as well. The car is infinitely softer than another MY11 335i I just drove on the lot. Any wisdom or help would be greatly appreciated. It also seems to get progressively more loose with greater speed.

I used to cringe going over pot holes and speed bumps, but now I barely feel them. And frankly, it really is disappointing when it feels like you're floating down the highway.

Any help would be greatly appreciated!

Best,

Tony
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Last edited by tpipta; 03-22-2011 at 09:27 AM.
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      03-22-2011, 10:46 AM   #2
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M-sport cars run same suspension as sport cars. Even the "is" runs the same suspension. Yes, stock is far too soft for the power on offer and the handling premise.

Try BMWPerformance suspension to transform the car to what it should be and keep full warranty. Cost from Tischer is very reasonable for full kit (springs matched to your car's weight, dampers, and front sway). You won't believe the difference yet ride quality remains quite reasonable - even better when you ditch runflats of course.
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      03-22-2011, 10:48 AM   #3
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Tony I should add that your local dealer may be willing to price match Tischer on the kit if they install it. Mine did - I had it fitted before delivery because I knew from test drives the suspension was too sloppy for how I drive but wanted to keep warranty at least for first few years.
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      03-22-2011, 11:31 AM   #4
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There is definitely a difference. The LCI's have different dampers which are more "tuned" for the run-flats. They offer a quiter and more comfortable ride than the previous suspension.

My x-drive does not sit as high as my old x-drive and it is not as soft as my old x-drive. Granted the x-drive suspension has improved, I wondered if the the sports suspension has improved.

I have my KWs but I am trying to hold out for a while before installing them. I only have 200 miles on my 2011 so I want to see how the stock suspension settles before switching to the KWs...
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      03-22-2011, 12:09 PM   #5
Edward
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Quote:
Originally Posted by reprod View Post
There is definitely a difference. The LCI's have different dampers which are more "tuned" for the run-flats. They offer a quiter and more comfortable ride than the previous suspension.
This. 2011 coupes have softer suspension overall. Probably done to alleviate the crappy bridgestones concrete bubble wall RFTs they used to use which would break the crap out of rims when hitting potholes. I'm on stock 19s on Pirelli RFT and the ride is quite "smooth." Potholes still suck but they don't break your car/wheels/tires/ass anymore.
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      03-22-2011, 12:23 PM   #6
tpipta
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Quote:
Originally Posted by Edward View Post
This. 2011 coupes have softer suspension overall. Probably done to alleviate the crappy bridgestones concrete bubble wall RFTs they used to use which would break the crap out of rims when hitting potholes. I'm on stock 19s on Pirelli RFT and the ride is quite "smooth." Potholes still suck but they don't break your car/wheels/tires/ass anymore.
Excellent. I wish my salesman would have told me this prior to ordering the car. I'm guessing then that the service department totally was lying when they the suspension had not changed for LCI cars. It really is just miserable, the steering is so numb and unresponsive.

Thanks for everyone's input.
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      03-22-2011, 02:44 PM   #7
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Makes me wonder how close the xi suspension is to the i suspension now... I know that my new x-drive seems to sit lower than my '08 x-drive...
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      03-22-2011, 03:27 PM   #8
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Quote:
Originally Posted by reprod View Post
Makes me wonder how close the xi suspension is to the i suspension now... I know that my new x-drive seems to sit lower than my '08 x-drive...
about an inch away still.
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      03-22-2011, 04:10 PM   #9
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Interesting.

I have a 2011 xdrive coupe. I bent 3 rims from rather small potholes. I wouldn't call this suspension soft by any stretch of the imagination. All relative I suppose.
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      03-22-2011, 04:16 PM   #10
reprod
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If you bent 3 rims and your car is an 2011, those are not rather small potholes...
I should know... I live in NYC...

In your scenario, a big pothole would essentially be one which engulfs the front-end of the car.
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'14 Mineral Grey F32 335i M-Sport (DHP | LED Lights | Coral Red | Hexagonal Aluminum)
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      03-22-2011, 04:19 PM   #11
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Quote:
Originally Posted by reprod View Post
If you bent 3 rims and your car is an 2011, those are not rather small potholes...
I should know... I live in NYC...

In your scenario, a big pothole would essentially be one which engulfs the front-end of the car.
Ok, maybe the first one was a little larger.. but I was making a right turn and it was full of water.

The second pothole was about 1.5 inches, I hit it at 30 mph. tire was fine, rim bent.

I am blaming it on cheap tire rack rims. Actually, trying to get my post count up so I can PM people about wheels.

Driving around on 3 bent rims currently, and it SUCKS. Makes the car very tiresome to drive even short distances.
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