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      01-25-2023, 08:59 AM   #1
MAMSport
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traction control

On 2016 M235i, I was trying to do some car control practice (snowy parking lot), sliding the rear around a 'skidpad'. I had some trouble doing this, with the stability control seemingly limiting wheelspin in 'comfort' and 'sport' settings. Do I need to be a bit more aggressive in these settings, or do I need to select 'sport +' instead?

I have no trouble doing this in the 128i with a WaveTrac although without a single press of the traction button, there can be throttle reduction/intervention.
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      01-25-2023, 09:02 AM   #2
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Sport+ allows a small amount of spin before pulling power and braking wheels. DTC single press allows for a bit more slip but still brakes your wheels. You will need to hold the DTC button for 3 seconds to allow for full slip.

Basically the same as the 1 series, ignore the sport/comfort BS for what you want to do here.

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      01-25-2023, 09:15 AM   #3
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Yes, always cautious. But, as the M235i is new to me, where is the DTC button? Is it embedded in the i-drive (I couldn't find it there, but that is new to me)?
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      01-25-2023, 09:25 AM   #4
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Just above the sport/comfort switch by your shift knob. I think it was an icon of a car with skid marks.
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      01-25-2023, 12:14 PM   #5
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Ah, I'll look for it next time, if I decide to buy the car. I've taken it out for a short (standard) test on a rainy evening, then had the opportunity to look at it on a lift before a drive on snowy roads (read: low friction). The car is good, but I think I like my 128i better (see my mods list).
Is this the button just forward (closer to the dashboard) of the switch for changing the Adaptive Suspension setting?
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Last edited by MAMSport; 01-25-2023 at 12:32 PM.. Reason: added info
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      01-25-2023, 12:44 PM   #6
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see pics (disregard the ad)

https://f30.bimmerpost.com/forums/sh....php?t=1415109

I came from a similarly modded e90 330i. The 2 series drives more numb especially in stock form.. the biggest down side would be the electronic steering rack. Of course suspension can be modded as you choose, but the rack isn't really an option.
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      01-25-2023, 01:01 PM   #7
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Thank you very much for the image and confirming. Tough decision. I think I have a 'knowing' buyer for my car. Trade value nowhere near what the car is worth to someone who understands, which certainly is not 'everyone'!
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      01-25-2023, 03:28 PM   #8
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Quote:
Originally Posted by MAMSport View Post
Thank you very much for the image and confirming.
If needed, these are the instructions from the 2017 M240i manual. I'm guessing they're the same for the M235i.


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      01-25-2023, 05:48 PM   #9
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This is one of the handful of things that really disappoints me about this car. Can't have Traction mode (DSC off, DTC on) at the same time as Sport mode. Traction mode sets the chassis and drivetrain to Comfort settings so softer suspension and steering. It is kind of lame really.
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      01-25-2023, 06:01 PM   #10
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The nannies are annoying but serve a purpose...I guess. We can have fun with these cars, just not TOO much fun.
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      01-25-2023, 06:52 PM   #11
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Quote:
Originally Posted by Resoelg View Post
The nannies are annoying but serve a purpose...I guess. We can have fun with these cars, just not TOO much fun.
Under some very specific circumstances, the nannies saved me bigly early one morning on a local interstate highway. During street driving, I'll never complain about them being in effect on a car with so much torque at low RPMs.

They're also handy when it's 30 degrees out, dry, and I'm running my winter tires (read: Michelin Pilot Sport A/S 3+) while turning the wheel with more than a little throttle input. This car's nannies have shown me that I need to be more judicious with the throttle that I've had to be with every other street car I've owned.

Turn DSC OFF on and you can have all the fun you want, especially if you've installed an LSD. Significant negative camber helps, too.
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      01-25-2023, 11:40 PM   #12
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Interesting. I didn't realize that changing the DTC status would also change Adaptive Suspension back to Comfort settings. Thanks, no thanks.
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      01-26-2023, 08:46 AM   #13
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Quote:
Originally Posted by MAMSport View Post
Interesting. I didn't realize that changing the DTC status would also change Adaptive Suspension back to Comfort settings. Thanks, no thanks.
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      01-26-2023, 10:53 AM   #14
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Quote:
Originally Posted by MAMSport View Post
Interesting. I didn't realize that changing the DTC status would also change Adaptive Suspension back to Comfort settings. Thanks, no thanks.
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      01-26-2023, 01:08 PM   #15
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Quote:
Originally Posted by Kernel Kurtz View Post
This is one of the handful of things that really disappoints me about this car. Can't have Traction mode (DSC off, DTC on) at the same time as Sport mode. Traction mode sets the chassis and drivetrain to Comfort settings so softer suspension and steering. It is kind of lame really.
"Sport" mode has three settings. You can select Chassis, Drivetrain, or "Chassis/Drivetrain". "Chassis" is stiff shocks, stiff steering, the slower/linear Comfort throttle, and all nannies on. "Drivetrain" is the Sport throttle and soft shocks, soft steering, and all nannies on. "Chassis/Drivetrain" is the stiff shocks, stiff steering, and Sport throttle and all nannies on.

"Sport+" is stiff shocks, stiff steering, and Sport throttle and nannies dialed back to allow for some spin and slide.

"Traction" is soft shocks, soft steering, Comfort throttle, and nannies dialed back to allow for some spin and slide.

"DSC Off" is stiff shocks, stiff steering, Comfort throttle, nannies off, and electronic LSD on.

ECO and Comfort modes are terrible. Don't know why anyone would drive this car in those setttings

IMO, if you have a mechanical LSD, Sport+ is the best mode for fun street driving and DSC Off for the track if you're a solid driver. Otherwise, stick with Sport+.


I am astounded by how much better performing and riding my M235 is with a 245/35R18 square tire setup, a mechanical LSD, Dinan springs and OEM shocks in the front, and Bilstein B6s Damptronics in the back with stock springs.
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      01-26-2023, 01:11 PM   #16
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Quote:
Originally Posted by MAMSport View Post
Ah, I'll look for it next time, if I decide to buy the car. I've taken it out for a short (standard) test on a rainy evening, then had the opportunity to look at it on a lift before a drive on snowy roads (read: low friction). The car is good, but I think I like my 128i better (see my mods list).
Is this the button just forward (closer to the dashboard) of the switch for changing the Adaptive Suspension setting?
A stock M235/M240 with a mechanical LSD and summer tires will be better overall handling/performing cars than your modded 128. The 2 series has a much better rear suspension than the 1 series. The M235 with the M Performance LSD was a few seconds faster on the Ring than the 1M in BMW's own testing back in 2014. Add some mods to the M235 suspension and much needed tire width up front and it becomes very apparent that BMW nuetered the car a bit to make room for the M2.
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      01-26-2023, 02:08 PM   #17
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Quote:
Originally Posted by XutvJet View Post
"Sport" mode has three settings. You can select Chassis, Drivetrain, or "Chassis/Drivetrain". "Chassis" is stiff shocks, stiff steering, the slower/linear Comfort throttle, and all nannies on. "Drivetrain" is the Sport throttle and soft shocks, soft steering, and all nannies on. "Chassis/Drivetrain" is the stiff shocks, stiff steering, and Sport throttle and all nannies on.

"Sport+" is stiff shocks, stiff steering, and Sport throttle and nannies dialed back to allow for some spin and slide.

"Traction" is soft shocks, soft steering, Comfort throttle, and nannies dialed back to allow for some spin and slide.

"DSC Off" is stiff shocks, stiff steering, Comfort throttle, nannies off, and electronic LSD on.

ECO and Comfort modes are terrible. Don't know why anyone would drive this car in those setttings

IMO, if you have a mechanical LSD, Sport+ is the best mode for fun street driving and DSC Off for the track if you're a solid driver. Otherwise, stick with Sport+.


I am astounded by how much better performing and riding my M235 is with a 245/35R18 square tire setup, a mechanical LSD, Dinan springs and OEM shocks in the front, and Bilstein B6s Damptronics in the back with stock springs.
Yeah, I have both Chassis and Drivetrain enabled in Sport mode. In theory Sport+ should be what I want, but it also raises the shift points considerably more than Sport. I want to be able to have a bit of fun on snow covered roads, but I don't need every shift to be at 3K while doing so. If you have a manual of course this is irrelevant. Makes me wonder if this is something I can change with some coding. Will have to investigate further.

Last edited by Kernel Kurtz; 01-26-2023 at 02:17 PM..
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