12-30-2012, 11:28 AM | #1 |
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Suspension differencies between 335i xDrive and 335i - both with Sport Line
When 2013 BMW 335i xDrive is ordered with ZSL Sport Line package, 704 Sport Suspension will be deleted from the build.
Does anyone know what suspension capabilities are removed when 704 Sport Suspension is removed from the build? What suspension capabilities - other than anything traction related - are added by the virtue of the vehicle being 335i xDrive? I understand the ride height is not lowered by 10mm and xDrive equipped 335i weighs more (200 lbs). My dealer could not explain the differences in detail (from an engineer's perspective) and requested more details from BMW AG. |
12-30-2012, 01:35 PM | #2 |
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I'd skip the xDrive if you actually live in OC.
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02-15-2013, 07:30 PM | #3 |
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Still researching this topic and cannot find a definitive answer. Short of having a BMW engineer explain the differences at the component level ...
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02-15-2013, 08:58 PM | #4 | |
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02-17-2013, 10:08 AM | #5 | |
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You can get them with the adaptive m suspension if you order the dynamic handling package though. |
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02-17-2013, 10:35 AM | #6 |
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It's sway bars and springs are different, just not sure if the struts/springs are different too.
I would skip x drive as well due to weight, handling, mpgs, and appearance if your weather allows.
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02-20-2013, 05:07 PM | #7 |
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The whole suspension setup is completely different on the front due to having to accommodate a front axel
Compare these images from a 335 http://www.realoem.com/bmw/showparts...42&hg=31&fg=05 to the 335x http://www.realoem.com/bmw/showparts...93&hg=31&fg=05 The front stabilizer bar on the X is a little beefier than even the sport (normal=21.2mm, sport=22.2mm, x=22.5mm) but they're really close On the rear, all the components are identical except the rear stabilizer, the standard and X suspension share the same 12mm stabilizer, where the sport gets a 13mm bar. On the front and back all 3 types get different shocks, bump stops, and springs - the X carries the same ride height as the standard suspension, the sport is 10mm lower. X has slightly heavier springs than standard to deal with the additional weight, sport springs are heavier and shorter. The story's the same with M adaptive suspension, different shocks, bump stops and springs - the adaptive on RWD is 10mm lower than standard (same as sport), where the adaptive on X is same ride height as std. |
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02-20-2013, 05:36 PM | #8 |
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Why buy an xi? I live in a city known for snow fall and I get along great with a 330i and decent snow tires. That includes trips to ski country where it's much snowier with more hills.
Buy a car for the rule, not the exception.
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03-05-2013, 11:48 AM | #9 | |
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I know RWD is a danger with summer tires. But no one talks about rwd and all seasons. Is it worse than my current fwd and all seasons? I probably will not buy winter or summer tires. |
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03-05-2013, 01:34 PM | #10 | |
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03-06-2013, 07:19 AM | #11 | |
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Maybe it will be a real case to get 18 inch snow tires to take off a sportline... |
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03-10-2013, 11:03 AM | #12 | |
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I read the spec and weight is only 150 lbs. In reality, those who have driven, is it about the same in sportiness. Seems BMW got serious and offered more sport on the xdrive than ever before? |
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03-10-2013, 06:00 PM | #13 | |
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Still for the most part AS tires will get you home safely in light snow. FWD has the advantage of better accelerative traction as there is more weight over the drive tires, so it gets the car moving easier. In the winter I put a couple of bags of sand or water softener salt in the trunk to add weight over the drive wheels. I'm running Conti DWS AS tires and they great AS tires, in my experience they are the best performance AS tires in the market. Their cold performance is great on dry and wet/slushy road conditions, and in warmer weather they come very close to many actual summer performance tires. In the winter snowy conditions you may consider lowering the tire pressure to get better grip. But, I use stock psi in the winter and increase the psi to the listed high speed/over 100mph rating on the door sill. The higher pressure stiffens the AS tires softer sidewall and nicely improves steering feel and handling, and it helps in getting better MPG over all. We haven't had a lot of snow around Chicago this winter, but we recently had a heavy snow fall around 6-8". I drove on snow covered roads, about 3-4", and salty slushy conditions will NO problems at all. Proper driving technique and reasonable expectations are just as important as the tires in any given road condition. IOW, there is no need for performance style driving when the road conditions are poor. With that and good AS tires your RWD BMW will get you where you need to go as long as you aren't going to drive in very hilly terrain or going to a ski slope. |
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03-10-2013, 06:04 PM | #14 | |
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Since you live in OC, there really is no reason for choosing AWD. If you go skiing a lot and will be driving on very hilly and snow covered roads, then I can see needing AWD. However, even then if you had a set of snow or winter performance wheel/tire set you could just swap those on for the times when you go skiing. That way you'll have the best handling offered by RWD and traction with the snow/winter performance tires. AWD has great advantage in snow and hilly snow covered terrain, but you lose some handling compared to RWD. |
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03-10-2013, 06:41 PM | #15 | |
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Since you live in OC, there really is no reason for choosing AWD. If you go skiing a lot and will be driving on very hilly and snow covered roads, then I can see needing AWD. However, even then if you had a set of snow or winter performance wheel/tire set you could just swap those on for the times when you go skiing. That way you'll have the best handling offered by RWD and traction with the snow/winter performance tires. |
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03-24-2013, 10:51 AM | #16 | |
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Some prefer traditional RWD, but X are becomming more and more popular due people realising potential |
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04-22-2013, 03:44 PM | #17 |
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cfm - I'm in the same boat as you... I've been leaning toward an xDrive, but I was concerned about the possibility of giving up a suspension more suited to sporty handling.
I've had both RWD and xi e46 3 series over the years, and I've learned the following:
So from my experience, I think you won't be giving up much either way, whichever option you choose. For me, it's less a question of bad weather safety, and more a matter of which is the preferred driving dynamic for every day driving. I am literally headed to the dealer this evening to (yet again) drive xDrive and RWD models back-to-back to try to make my choice.
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09-07-2013, 01:44 PM | #18 |
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Why not get the X-drive and upgrade the suspension? That is the route I am going. I had a 328i RWD w/snows last year, it was manageable, but my Subaru w/all seasons runs circles around it (so much for the AWD/all seasons <RWD/snow tires talk on here) I am at the mountain 2-4 days a week to ski and teach, and we get an average of 400 inches/year there. Here in town, a lean year can be 30 inches, a big year 100 inches. The RWD works OK, but you have to pay attention, you have to watch your RPM's to keep torque at a minimum, and use really good snow tires. The AWD is much better in snow, and if it snows 6 inches during my ski day, I know I will be able to get out of the parking lot: that would be tough in the RWD. Honestly, most people griping about the AWD cars are probably feeling the sluggish handling (due to crappy 4x4 suspension) more than they are the drive system. It weighs a couple hundred pounds more in a 3600 pound car: that is what, 6%? People are pushing an (often tuned) N55 engine that hard in daily driving that they are worried about, much less can feel, a 6% weight increase? Sure, if you are tracking it, but.....
The X-drive is still RWD biased, and with so much power in the N55 (especially if tuned), you can even get the rear tires starting to come loose in cornering before the AWD kicks in. So, if you need the X-drive, set aside $1600 for a set of coil-overs and install, and call it good. Best of both worlds. I agree though, if you don't need AWD, then get the RWD setup. Gets a couple of MPG better, is a lighter less complex car. It is what I would have if I didn't live in the mountains. If I only occasionally saw snow and lived in a pan-flat area (as most of the posters who live in the Midwest do), then it would change the equation as well. But, when you have to regularly drive up to 6500 feet elevation in the PNW in the winter, or up to Snowbird/Alta, considerations are different. |
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