11-23-2017, 09:26 AM | #1 |
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Adaptive M Suspension vs Standard
The other day I test drove a X3 M40i and it had passive suspension, which made the ride experience not pleasant at all, specially over bumps, it was so bad that I think that my kids would throw up in 30 min
My 2016 M3 with Adaptive M Suspension has way better suspension feeling Any input from those who tested drove both setups?
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11-23-2017, 09:54 AM | #3 |
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I think it is a MUST have, as HK sound, Nav and Heated Seats
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11-23-2017, 10:23 AM | #4 |
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Everything I've read about the previous generations has indicated that the adaptive suspension on the M40i and dynamic damper control on the 30i make a big difference. Plus, for $700 for the adaptive M vs the $1,000 for dynamic damper control on the 30i, its a steal imo.
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11-23-2017, 08:30 PM | #5 | |
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The Australian 30i seems to be firm with bigger 20” rims on run flats , could be the issue ——->>> http://www.caradvice.com.au/603453/2...ive30i-review/ Last edited by Bimar; 11-23-2017 at 08:51 PM.. |
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11-24-2017, 08:52 PM | #6 |
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I drove an m40i without adaptive suspension on 19” wheels. Ride felt relativey smooth — better than the GLC 43 I tested, which had standard 20” tires, but a little less grippy/precise. Reviews seem to suggest that the larger wheeled m40is are significantly less compliant.
I wish I could find tires/wheels for a compact suv that would yield a similar level of grip and compliance as the 18” michellin pilot super sports on my m235i. |
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11-24-2017, 10:11 PM | #7 | |
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You could do the Michelin Pilot Super Sport 255/45ZR19 on the OEM X3 19" wheels. It would have a side wall of 4.5 inches, making them slightly more compliant than your M235i. Obviously the vehicle dynamics are different. The 21" wheels could do 255/35ZR21 Super Sport on the front and 285/35ZR21 in the rear. Those would get you back to a 3.5" sidewall height comparable to the M235i with 18". |
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11-25-2017, 08:26 AM | #9 | |
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I could buy new wheels but prefer the OEM look. Also a little worried that 21" will get more harsh than the m235i, even if it's the same sidewall height, because of the difference between the vehicles (i.e., weight/suspension tuning). |
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11-25-2017, 08:48 AM | #10 | |
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What about 20"? PSS 245/40ZR20 front, width range 8-9.5" PSS 285/35ZR20 back, width range 9.5-11" Those sizes give a 3.9" sidewall. They're a little smaller than the stock tire overall, though. |
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11-25-2017, 04:03 PM | #11 |
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An update: took a second test drive of the X3 m40i with my wife this afternoon. Turns out the vehicle has 21" wheels with adaptive suspension. Ride was fairly compliant in comfort mode -- significantly better than the GLC 43 with 20" wheels in its most comfortable setting. My wife thought the ride in comfort mode was on par with our 2015 X3 with 18" wheels and non-run flat all seasons, which is completely daily driveable.
The tires equipped on the X3 m40i were apparently Bridgestone Alenza run flats. Dealer said these are OEM. The regular Alenza and Alenza plus tires don't appear to be made in this size, and I haven't been able to track down any specs. I've attached a few pictures for reference. The equipped tires are a little bit of a mystery to me, and I'm trying to square our impressions of the ride quality with comments from other reviewers on the sometimes harsh ride. |
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11-25-2017, 04:11 PM | #12 | |
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11-25-2017, 04:43 PM | #13 |
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I have the Michelin Pilot Sport 4S on my M3. They are amazing tires. Great grip in the wet and dry. They are also quieter than the PS2's In terms of ride comfort, I have no complaints at all. They are non run flats but I would consider getting the BMW M Mobility kit
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11-25-2017, 05:53 PM | #14 | |
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11-25-2017, 09:11 PM | #15 | |
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11-30-2017, 04:40 AM | #18 |
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Good to know:
-MY17 X4 M40i was solely delivered with Michelin PSS non RFT:s. 20", staggered. In most markets other X4 models were delivered with (bad) RFT:s of various brands. PSS and now PS4 have been best tires in most Ultra High Performance Tire tests in Europe during recent years. |
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11-30-2017, 07:23 AM | #19 |
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I tested an X3 M40i with the 21" Bridgestone staggered setup for an hour on a variety of roads. It had M adaptive suspension. It did not matter what mode I put the vehicle in, the ride was choppy. It felt as though the tire pressure was too high. Compared to the Audi SQ5 and the Volvo XC60 the BMW was dead last for ride quality. The X3 3.0 with standard suspension and 19" tires handled much better.
I am hoping that this was simply a reflection of the setup (pressures) and the temperature (just below freezing is not recommended for the Bridgestone summer run flats). As others have said, my M3 with adaptive suspension is much more comfortable. |
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11-30-2017, 08:31 AM | #20 | |
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I didn't realize that the bridgestone's are summer run flats. This is the same setup I drove during ~55 degree weather, and it felt pretty comfortable to me and my wife. Much better than GLC 43. We're going to test drive SQ5 this week and will compare. |
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11-30-2017, 02:14 PM | #21 | |
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Not only was the ride more comfortable in the 3.0, but because it was less choppy, the 3.0 gave me more confidence that the tires were always in contact with the road surface. I hope that this is just a matter of temperature and the compounds. |
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12-01-2017, 01:21 PM | #22 | |
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Do you think this would look terrible? Any other obvious issues? Hoping that this would sharpen up the handling a bit and give better lateral grip. |
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