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      10-25-2020, 11:26 PM   #2003
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Originally Posted by richard in NC View Post
I can't say I've driven the M2C at excessive highway speeds but I have seen triple digits on track several times and places. I've not noticed any unstable feeling. The combination of short wheelbase, and low profile tires does make it hyper sensitive to road conditions, more so than older BMWs, in particular 5 series that I've had. I've also heard the EPS may react oddly to quick inputs and does feel different than hydraulic power steering.
I had an F22 230i before the F82 and while it may not have been "as stable" at top speed, it wasn't terribly different, and certainly not unstable. It got quite a bit of exercise at top speed during ED and it was never an issue. Would guess that wouldn't be quite the same here in the US, given our roads are nowhere near the Autobahn.
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      10-25-2020, 11:32 PM   #2004
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Originally Posted by F82PRETEND View Post
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Originally Posted by j23 View Post
I suck at describing these things.

Car feels a little floaty during high speeds. Could be the wheelbase. Or perhaps the electric steering that I'm not fully used to yet. When I would point the e46 M3, it would go there. It's almost like the steering on the M2C is trying to catch up with my inputs. Again, maybe I'm just not fully used to how this car drives. It's nothing like the e46 M3 - that's for sure. Feels twice as fast too.

But what do I know. This car is spectacular nonetheless.
What you're describing sounds like the dead center of the electronic steering. It's super annoying for serious driving/getting used to. However, on the crap highways we have in the US, I actually don't mind it for just cruising. My old BMWs made me constantly obsess about the car being out of alignment...never really was...they just followed tiny changes in the road so precisely.
It could very well be a combination of this and everything else mentioned. Thanks.

I'm not saying it feels "wrong", just very different to what I'm used to. Now that you mention dead center of the electronic steering, it's making more sense to me. That's what it is most likely.
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      10-25-2020, 11:42 PM   #2005
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Originally Posted by boss2k View Post
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Originally Posted by j23 View Post
I suck at describing these things.

Car feels a little floaty during high speeds. Could be the wheelbase. Or perhaps the electric steering that I'm not fully used to yet. When I would point the e46 M3, it would go there. It's almost like the steering on the M2C is trying to catch up with my inputs. Again, maybe I'm just not fully used to how this car drives. It's nothing like the e46 M3 - that's for sure. Feels twice as fast too.

But what do I know. This car is spectacular nonetheless.
I have gone upto 85 at times , never felt anything you mention . Whats your tire pressure? Car feels actually solid and i like the steering feel, am in sports all the time.
Tire pressure is always spot on at around 32/33 psi cold, according to the monitoring system. I know BMW recommends 35 for road use, but TPMS always reads some 2psi lower than physical gauge. My tires are still relatively new and I think the pressure is good.
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      10-26-2020, 08:01 AM   #2006
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Tire pressure is always spot on at around 32/33 psi cold, according to the monitoring system. I know BMW recommends 35 for road use, but TPMS always reads some 2psi lower than physical gauge. My tires are still relatively new and I think the pressure is good.
As something easy to do, I'd try a bit higher pressures all around.

I just picked up an X3M and wondered about the balance/alignment on some roads but it felt like the pressures were a bit low. 2 psi made all the difference and the car feels fine now.
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      10-26-2020, 09:22 AM   #2007
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Quote:
Originally Posted by richard in NC View Post
As something easy to do, I'd try a bit higher pressures all around.

I just picked up an X3M and wondered about the balance/alignment on some roads but it felt like the pressures were a bit low. 2 psi made all the difference and the car feels fine now.
Yes, a couple psi make a huge difference. And 32/33 is low for the M2C. Now that its getting colder, tires need to be adjusted every month.
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      10-26-2020, 09:34 AM   #2008
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Better pedal position, shorter throw and adjustable feel

Happy with mine so far
Can you install without the clutch stop? If i buy alumunium pedals can it be installed on this too?
Does this throw the warranty out the book? btw, where did you get it installed? local bmw specialty place?
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      10-26-2020, 01:12 PM   #2009
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Quote:
Originally Posted by j23 View Post
Tire pressure is always spot on at around 32/33 psi cold, according to the monitoring system. I know BMW recommends 35 for road use, but TPMS always reads some 2psi lower than physical gauge. My tires are still relatively new and I think the pressure is good.
Definitely raise the tire temperatures to around 35 cold all around and I promise you'll see a big difference in the "jitteriness" of the car. 32 all around is LOW.
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      10-26-2020, 01:38 PM   #2010
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j23

Just curious, what steering wheel setting do you utilize?

I won't try to describe what I perceive in Sport Plus, other than I do not like it. Drive in Sport steering mode.

Wonder if what you are experiencing, and do not appear to like is related to your set steering mode?

///AVM
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      10-26-2020, 03:38 PM   #2011
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Originally Posted by BigKutta View Post
Yes, a couple psi make a huge difference. And 32/33 is low for the M2C. Now that its getting colder, tires need to be adjusted every month.
On my M2C, when I adjust the tires to 32/33 cold (using two different gauges), the monitoring system reads around 35 (and slightly higher when fully warned up). So I doubt this would make a difference.

Anyone else notice that TPMS seems to read about 2 psi higher?
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      10-26-2020, 03:39 PM   #2012
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Originally Posted by ///AVM View Post
j23

Just curious, what steering wheel setting do you utilize?

I won't try to describe what I perceive in Sport Plus, other than I do not like it. Drive in Sport steering mode.

Wonder if what you are experiencing, and do not appear to like is related to your set steering mode?

///AVM
I used Sport or Sport Plus most of the time. Very touchy in those modes.
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      10-26-2020, 03:45 PM   #2013
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Quote:
Originally Posted by j23 View Post
On my M2C, when I adjust the tires to 32/33 cold (using two different gauges), the monitoring system reads around 35 (and slightly higher when fully warned up). So I doubt this would make a difference.

Anyone else notice that TPMS seems to read about 2 psi higher?
I think we discussed on a separate thread that the TPMS is about 0.5-1 psi off from an actual gauge for most of us. 2-3 psi seems off by a lot. Have you tried a different gauge?
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      10-26-2020, 06:25 PM   #2014
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Quote:
Originally Posted by BigKutta View Post
I think we discussed on a separate thread that the TPMS is about 0.5-1 psi off from an actual gauge for most of us. 2-3 psi seems off by a lot. Have you tried a different gauge?
Kutta

This topic is so simple, yet so complex. I want to comment, but it gets very convoluted quickly.

So, to make a long story short as possible, my 718 CGTS had some low pressure readings and the Porsche service manager insisted my only point of focus should be on the computer reading . . . NOT the manual tire gauge pressure readings.

I have absolutely no expertise in tire psi so, my question is . . . with our Bimmers, is best to focus on the computer reading or the tire gauge pressure reading??

I ask, but will have zero concern about it until my computer pumps out an error message saying the pressure is low in one of my tires.

Gracias!

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      10-26-2020, 07:59 PM   #2015
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Quote:
Originally Posted by ///AVM View Post
Kutta

This topic is so simple, yet so complex. I want to comment, but it gets very convoluted quickly.

So, to make a long story short as possible, my 718 CGTS had some low pressure readings and the Porsche service manager insisted my only point of focus should be on the computer reading . . . NOT the manual tire gauge pressure readings.

I have absolutely no expertise in tire psi so, my question is . . . with our Bimmers, is best to focus on the computer reading or the tire gauge pressure reading??

I ask, but will have zero concern about it until my computer pumps out an error message saying the pressure is low in one of my tires.

Gracias!

///AVM
With all due respect, that's some hard BS coming from the service advisor. If you're talking about the SA (as opposed to the guys in the back actually working on the cars), then I'm not surprised. Those guys are glorified salesmen.
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      10-26-2020, 08:08 PM   #2016
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Originally Posted by keylime503 View Post
With all due respect, that's some hard BS coming from the service advisor. If you're talking about the SA (as opposed to the guys in the back actually working on the cars), then I'm not surprised. Those guys are glorified salesmen.
Key

I have no expertise, which is why I am asking.

For the record, it was the Service Department Manager . . . I am not out to disparage anyone, but it is hard to beat the information offered on this forum.

///AVM

Last edited by ///AVM; 10-26-2020 at 08:18 PM..
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      10-26-2020, 08:24 PM   #2017
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Quote:
Originally Posted by ///AVM View Post
Quote:
Originally Posted by BigKutta View Post
I think we discussed on a separate thread that the TPMS is about 0.5-1 psi off from an actual gauge for most of us. 2-3 psi seems off by a lot. Have you tried a different gauge?
Kutta

This topic is so simple, yet so complex. I want to comment, but it gets very convoluted quickly.

So, to make a long story short as possible, my 718 CGTS had some low pressure readings and the Porsche service manager insisted my only point of focus should be on the computer reading . . . NOT the manual tire gauge pressure readings.

I have absolutely no expertise in tire psi so, my question is . . . with our Bimmers, is best to focus on the computer reading or the tire gauge pressure reading??

I ask, but will have zero concern about it until my computer pumps out an error message saying the pressure is low in one of my tires.

Gracias!

///AVM
Not sure I'd trust my tpms alone, because low pressure is low pressure regardless of what the tpms thinks. I think a second, and even a third point of measurement is desirable, so as to determine which one is wrong or right. In my case, I compared my tpms reading to a basic hand held analog pressure gauge, as well as a electric air pump which also has a digital reading. Based on three reading I determined that the tpms was off by about 1 psi when compared to the other two, which were both giving the same readings.

PS. If you find the tpms is not far off, then you can go with the tpms reading of course. It's just good to know how far off it is, if at all.
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      10-26-2020, 08:45 PM   #2018
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I always go by the car computer reading and generally its 1 psi difference between the car and my portable compressor having digital reading. For both my cars i go by my car reading and never had an issue
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      10-27-2020, 01:21 AM   #2019
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The TPMS is just usefull to get an idea of how the tires are warming up. The TPMS in my car reads 1.5 pounds too low. You can't trust it to set the air pressure.
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      10-27-2020, 09:34 AM   #2020
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Do our cars come with an electric tire pump?
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      10-27-2020, 09:49 AM   #2021
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Electri tire pump

Yes, it's under the cover in the trunk
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      10-27-2020, 11:37 AM   #2022
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Chiming in per my experience.
I was fortunate to be at a track event with Bridgestone. Their calibrated system measured my best gauge to be < 1 psi off. That is my reference point albeit that test was 2-3 years ago.
My other gauges were 2-3 psi off that one so I no longer use them.
My TPMS seems to be close maybe also within 1 psi. Keep in mind it only measures once driving and may read a bit higher than the cold pressures. As temps rise, so do pressures. Some iDrive versions recommend a pressure based on the temp. If 35 is recommended cold, it may recommend 37 hot. If you only read 35 psi then, it may be too low. Although I've not see this in my M2C. Only actuals.

Also as noted, with temps getting cooler, I often set mine 1-2 psi high to allow for the really cold mornings approaching.

PS: With cooler temps now, my tires were reading 32-33 cold. I set them to 35, and quite a difference was felt.
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      10-27-2020, 09:12 PM   #2023
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Quote:
Originally Posted by richard in NC View Post
Chiming in per my experience.
Keep in mind it only measures once driving and may read a bit higher than the cold pressures. As temps rise, so do pressures. Some iDrive versions recommend a pressure based on the temp.
No it reads tire temps immediately on driving so tire pressure is still cold when the car reads the temp, i get the tire pressures even before i leave my subdivision , typically you need to drive 2-3 miles before tire temps rise
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      10-28-2020, 07:15 AM   #2024
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Quote:
Originally Posted by boss2k View Post
No it reads tire temps immediately on driving so tire pressure is still cold when the car reads the temp, i get the tire pressures even before i leave my subdivision , typically you need to drive 2-3 miles before tire temps rise
I guess I'm too busy on my side street to check it as soon as I leave the driveway. Plus I'll do a reset and it takes a while before it shows pressures.
But I stand by my thought that its within 1 psi.
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