04-03-2021, 08:01 PM | #1 |
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If you think the x4/3m is too stiff and rough read this
So there was a PSA a week or so ago on here about a istep update. Myself and several others have gotten it. It greatly improves ride quality, transmission smoothness, and stops the auto start stop from stopping the engine before you stop. It has made a night and day difference on ride quality. It also make the adaptation cruise control actually usable. I have a 2021 model, and I know the 2020 and earlier models see the same improvement. This update should address many of your concerns over ride quality.
To get the update, just tell the dealership that the adaptive cruise will pull you hard out of the lane when there is a turning lane. Tell them, bmw NA said there was an update to fix this when you called them with your concern. My dealership swore up and down it was just a "camera" update and not an istep update, but it was. Either way I got my update. Also, if you're using the stock Conti summer tires, GET RID OF THEM! Not only do they suck for grip, and only last 6-11k miles. They make the ride horrible. They make it bouncy, and unsettled. Tldr; make sure you get the istep update and don't run the Conti tires. You will no longer dislike the ride.
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04-03-2021, 08:32 PM | #3 |
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Not entirely sure. I would check the psa thread.
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04-04-2021, 12:28 AM | #5 |
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Because it's not abundantly clear what you get from the istep when you're scrolling through. Just want to make it extra clear that everyone sees this or the Psa.
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04-04-2021, 07:33 AM | #7 |
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I had a loaner X3M for 2 weeks with Michelins. I did not notice any perceivable difference in ride quality between the Michelin and continental. What I did notice is the Michelin tires scrubbed more and broke traction easier than the continental tires. That's to be expected as the continental tires have shorter tread wear rating and are likely a softer compound.
Nothing against Michelins, as that is what will replace the Continentals when the time comes, but I do not expect a drastic difference in ride quality. |
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04-04-2021, 07:38 AM | #8 | |
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1. Export your driver profile to a USB key via idrive. 2. Take that usb drive to your computer and open up the .mpd file with notepad or any text editor. Search for i-step in that file you will see the version. <i-step>S15A-19-11-540</i-step> |
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04-04-2021, 08:20 AM | #9 | |
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04-04-2021, 08:38 AM | #10 | ||
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04-04-2021, 09:20 AM | #11 |
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04-04-2021, 09:24 AM | #12 | |
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04-04-2021, 10:20 AM | #13 |
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One of my rears are at 41psi and it screams at my all the time to inflate it more. Shows it as red too. The other is 43 and says it's fine.
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04-04-2021, 02:14 PM | #15 |
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04-04-2021, 03:39 PM | #16 |
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Nor does mine. I run 3psi under whats in the door jamb (which is summer tires, under 100mph (36/39 recommended?) and coincides with the manual). Ive never seen IDrive recommend anything in the 40's for under 100mph.
FWIW-I had the update earlier this week for an unrelated issue and didnt notice much of a ride improvement. Granted I had only been on my summer tires for two days after removing my winters though. Of note, Ive noticed no difference in ride quality between the Michelins and Continentals and had them back to back at the same pressure. |
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04-04-2021, 06:01 PM | #17 |
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04-04-2021, 06:40 PM | #18 |
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It controls a lot of various systems. From the adaptive dampers, to the cameras, to the transmission. Pretty much everything.
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04-04-2021, 07:57 PM | #19 | |
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04-04-2021, 08:20 PM | #20 |
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04-04-2021, 09:54 PM | #21 |
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Is there any objective data that confirms the update actually changes the suspension programming? As of now I don't recall seeing anything objectively verifiable, only subjective owner comments.
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04-04-2021, 11:16 PM | #22 | |
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I don't think you're going to get any objective data from bmw.... Regardless, even if they didn't change the suspension. The changes to transmission and auto start stop made a huge difference. Plus the driver assistance upgrades.
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