Bimmerpost
3
/
4 Series
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
Technical Topics Wheels and Tires DSC issue with new tires

Post Reply
 
Thread Tools Search this Thread
      10-13-2019, 07:59 AM   #1
BarryB
Lieutenant Colonel
BarryB's Avatar
United_States
865
Rep
1,758
Posts

Drives: 30Jahre M5 plus a few more M's
Join Date: May 2012
Location: Palo Alto CA

iTrader: (0)

Garage List
Just installed 245/40/19 and 265/40/19 and now dsc is confused. Anyone else see this? Installed by dealer and they are confused.
Only difference from what I've read here is they we put on 40 series instead of 35's for the rear as i wanted the tallest side wall to fill the gap. (791M 8" front 8.5" rear rim sizes)
Can the slight diff in circumference cause that? Surely not?
Help.......

Looks GREAT and way better than stock but with the stock "look"
Will post pics when I can get back to the dealer out of town while they're figuring this out.
__________________
Current non-BMW's
20 Jeep Grand Cherokee
03 Cooper S (Maxi Tuned 50bhp)
60 Impala (43k orig mi)
15 Turbo S (Kobb tune and Kline exhaust)
Appreciate 0
      10-13-2019, 11:03 AM   #2
Transfer
Major General
Transfer's Avatar
5243
Rep
5,874
Posts

Drives: Bronco Wildtrak, Tesla MYP
Join Date: Mar 2010
Location: Issaquah, WA

iTrader: (1)

Explain what you mean by confused.
Appreciate 0
      10-13-2019, 04:58 PM   #3
BarryB
Lieutenant Colonel
BarryB's Avatar
United_States
865
Rep
1,758
Posts

Drives: 30Jahre M5 plus a few more M's
Join Date: May 2012
Location: Palo Alto CA

iTrader: (0)

Garage List
Quote:
Originally Posted by Transfer View Post
Explain what you mean by confused.
Dealer replaced runflats with 245/40/19 and 265/40/19 and rear rims to 8.5 (stock was square8")
When accelerating at 55 dsc comes on or any moderate accel. Way too easily and without loss of traction.....
A circumference issue, confusing the software?
Dealer is confused. Thought it would be straight forward. Rims ok per them and Michelin. Most have done 265/35 in the rear. Wonder if that could be it?
__________________
Current non-BMW's
20 Jeep Grand Cherokee
03 Cooper S (Maxi Tuned 50bhp)
60 Impala (43k orig mi)
15 Turbo S (Kobb tune and Kline exhaust)
Appreciate 0
      10-13-2019, 06:41 PM   #4
Transfer
Major General
Transfer's Avatar
5243
Rep
5,874
Posts

Drives: Bronco Wildtrak, Tesla MYP
Join Date: Mar 2010
Location: Issaquah, WA

iTrader: (1)

Quote:
Originally Posted by BarryB View Post
Quote:
Originally Posted by Transfer View Post
Explain what you mean by confused.
Dealer replaced runflats with 245/40/19 and 265/40/19 and rear rims to 8.5 (stock was square8")
When accelerating at 55 dsc comes on or any moderate accel. Way too easily and without loss of traction.....
A circumference issue, confusing the software?
Dealer is confused. Thought it would be straight forward. Rims ok per them and Michelin. Most have done 265/35 in the rear. Wonder if that could be it?
If those are your tire sizes, you increased tire diameter by 9% in the front and 19% in the rear. This also creates a 9% differential in diameter front to rear. If your car is xDrive this is catastrophic. Your dealer is completely inept.
Appreciate 1
      10-13-2019, 08:13 PM   #5
claykin
Brigadier General
United_States
1579
Rep
4,545
Posts

Drives: various BMW
Join Date: Nov 2009
Location: Florida

iTrader: (0)

Your dealer installed tire sizes not approved for your model? Oh my.
__________________
2023 840GC | 2021 740i | 2019 X3
Appreciate 0
      10-14-2019, 10:02 PM   #6
jimmythegreek69
New Member
0
Rep
10
Posts

Drives: 2013 328i xdrive, 2020 M340i x
Join Date: Apr 2017
Location: Canada

iTrader: (0)

I just installed some winter tires (Toyo GSi-6) in the factory sizes that came on my M340i. 255/35/19 in the rear and 225/40/19 in the front. I also get the DSC light come on when going around a corner at any speed over 30 kph. I changed the tire type in the IDrive system to winter and "other" and did the reset procedure.
Appreciate 0
      10-15-2019, 04:51 PM   #7
BarryB
Lieutenant Colonel
BarryB's Avatar
United_States
865
Rep
1,758
Posts

Drives: 30Jahre M5 plus a few more M's
Join Date: May 2012
Location: Palo Alto CA

iTrader: (0)

Garage List
Quote:
Originally Posted by jimmythegreek69 View Post
I just installed some winter tires (Toyo GSi-6) in the factory sizes that came on my M340i. 255/35/19 in the rear and 225/40/19 in the front. I also get the DSC light come on when going around a corner at any speed over 30 kph. I changed the tire type in the IDrive system to winter and "other" and did the reset procedure.
Did that solve the problem?
__________________
Current non-BMW's
20 Jeep Grand Cherokee
03 Cooper S (Maxi Tuned 50bhp)
60 Impala (43k orig mi)
15 Turbo S (Kobb tune and Kline exhaust)
Appreciate 0
      10-15-2019, 08:34 PM   #8
jimmythegreek69
New Member
0
Rep
10
Posts

Drives: 2013 328i xdrive, 2020 M340i x
Join Date: Apr 2017
Location: Canada

iTrader: (0)

Quote:
Originally Posted by BarryB View Post
Quote:
Originally Posted by jimmythegreek69 View Post
I just installed some winter tires (Toyo GSi-6) in the factory sizes that came on my M340i. 255/35/19 in the rear and 225/40/19 in the front. I also get the DSC light come on when going around a corner at any speed over 30 kph. I changed the tire type in the IDrive system to winter and "other" and did the reset procedure.
Did that solve the problem?
Quote:
Originally Posted by BarryB View Post
Quote:
Originally Posted by jimmythegreek69 View Post
I just installed some winter tires (Toyo GSi-6) in the factory sizes that came on my M340i. 255/35/19 in the rear and 225/40/19 in the front. I also get the DSC light come on when going around a corner at any speed over 30 kph. I changed the tire type in the IDrive system to winter and "other" and did the reset procedure.
Did that solve the problem?
No the DSC lights still come on when going around a corner with any speed. I might change the IDrive setting back to summer tires and see if it still does it.
Appreciate 0
      10-16-2019, 06:03 PM   #9
VMRWheels
General
VMRWheels's Avatar
2037
Rep
25,989
Posts

Drives: BMW
Join Date: Jun 2007
Location: Anaheim, CA

iTrader: (4)

Garage List
2013 BMW M3  [10.00]
2015 BMW M4  [0.00]
2013 BMW F30  [0.00]
2014 BMW F22  [0.00]
2013 BMW F06  [0.00]
Quote:
Originally Posted by Transfer View Post
If those are your tire sizes, you increased tire diameter by 9% in the front and 19% in the rear. This also creates a 9% differential in diameter front to rear. If your car is xDrive this is catastrophic. Your dealer is completely inept.
This. Not to mention a 265/40/19 is too wide for an 8.5" wheel. You should take your car straight back to your dealer (or perhaps a different one) and have them fix this ASAP. If your car is xDrive, you're going to do considerable damage to the drivetrain.
Appreciate 1
      10-18-2019, 08:38 AM   #10
BarryB
Lieutenant Colonel
BarryB's Avatar
United_States
865
Rep
1,758
Posts

Drives: 30Jahre M5 plus a few more M's
Join Date: May 2012
Location: Palo Alto CA

iTrader: (0)

Garage List
Thanks for the feedback. I'm still traveling but heard back yesterday car is ready for pickup with 265/35's in the rear. That 40 series was clearly wrong as stated here. Also, apparently Michelin does approve of an 8.5" rim with that tire.......
Can report driving feel next week.
__________________
Current non-BMW's
20 Jeep Grand Cherokee
03 Cooper S (Maxi Tuned 50bhp)
60 Impala (43k orig mi)
15 Turbo S (Kobb tune and Kline exhaust)
Appreciate 0
      10-19-2019, 12:23 AM   #11
Transfer
Major General
Transfer's Avatar
5243
Rep
5,874
Posts

Drives: Bronco Wildtrak, Tesla MYP
Join Date: Mar 2010
Location: Issaquah, WA

iTrader: (1)

You still haven't answered if you have xDrive. If you do, the corrected rear tire size is still bad fitment at 5% differential front to rear diameters.
Appreciate 0
      10-19-2019, 08:19 AM   #12
BarryB
Lieutenant Colonel
BarryB's Avatar
United_States
865
Rep
1,758
Posts

Drives: 30Jahre M5 plus a few more M's
Join Date: May 2012
Location: Palo Alto CA

iTrader: (0)

Garage List
Quote:
Originally Posted by Transfer View Post
You still haven't answered if you have xDrive. If you do, the corrected rear tire size is still bad fitment at 5% differential front to rear diameters.
Sorry didn't see where you asked me that..... but it IS xdrive (see my signature too). Dealer installed and leased, I'm not too worried.
__________________
Current non-BMW's
20 Jeep Grand Cherokee
03 Cooper S (Maxi Tuned 50bhp)
60 Impala (43k orig mi)
15 Turbo S (Kobb tune and Kline exhaust)
Appreciate 0
      10-19-2019, 10:26 AM   #13
Transfer
Major General
Transfer's Avatar
5243
Rep
5,874
Posts

Drives: Bronco Wildtrak, Tesla MYP
Join Date: Mar 2010
Location: Issaquah, WA

iTrader: (1)

Quote:
Originally Posted by BarryB View Post
Quote:
Originally Posted by Transfer View Post
You still haven't answered if you have xDrive. If you do, the corrected rear tire size is still bad fitment at 5% differential front to rear diameters.
Sorry didn't see where you asked me that..... but it IS xdrive (see my signature too). Dealer installed and leased, I'm not too worried.
Yeah I suppose they are liable if there are problems but moderate chance that damage happens to the xDrive system. I don't know specifics of how it works but for a mechanical diff AWD system rule of thumb is you should not exceed 1% difference in diameters front to rear. With modern more electronic systems I think you can get away with 2%, but most people don't push it with anything more than that. Do report if there are more problems but I hope you're in the clear. 245/265 would make a great setup.
Appreciate 0
      10-19-2019, 11:04 AM   #14
BarryB
Lieutenant Colonel
BarryB's Avatar
United_States
865
Rep
1,758
Posts

Drives: 30Jahre M5 plus a few more M's
Join Date: May 2012
Location: Palo Alto CA

iTrader: (0)

Garage List
Will do, and it looks WAY better in pic's. Much less "gap" without lowering and enough rubber to not worry too much about Bay Area roads.
I will take proper ones when I get back home. May still want spacers, though.

Will see....
__________________
Current non-BMW's
20 Jeep Grand Cherokee
03 Cooper S (Maxi Tuned 50bhp)
60 Impala (43k orig mi)
15 Turbo S (Kobb tune and Kline exhaust)
Appreciate 0
      10-21-2019, 10:38 AM   #15
BarryB
Lieutenant Colonel
BarryB's Avatar
United_States
865
Rep
1,758
Posts

Drives: 30Jahre M5 plus a few more M's
Join Date: May 2012
Location: Palo Alto CA

iTrader: (0)

Garage List
Looks much better, way less gap. Drives well. Haven't pushed it. Still need spacers, I think. I like the meatier stock look....
Last pic was stock wheels and before front splitter. Hard to tell in the pics but much improved look and feel compared to the 225 runflats.......
Attached Images
     
__________________
Current non-BMW's
20 Jeep Grand Cherokee
03 Cooper S (Maxi Tuned 50bhp)
60 Impala (43k orig mi)
15 Turbo S (Kobb tune and Kline exhaust)
Appreciate 0
      10-23-2019, 01:46 PM   #16
JDUNITNOW
Colonel
JDUNITNOW's Avatar
United_States
3453
Rep
2,340
Posts

Drives: BMW 335I, 750li, X5 G80
Join Date: Sep 2019
Location: Glen Allen, Virginia

iTrader: (0)

I agree, the car looks better with meaty tires and it closes the gap better. I am done with the lower profile tires now and want to be able to drive without clinching my but cheeks every time I hit or come up on a pothole or mancover. Glad to see you can put a 245 on a 8 inch rim.
Appreciate 0
      10-24-2019, 12:57 AM   #17
Transfer
Major General
Transfer's Avatar
5243
Rep
5,874
Posts

Drives: Bronco Wildtrak, Tesla MYP
Join Date: Mar 2010
Location: Issaquah, WA

iTrader: (1)

I have to correct myself. I was off on my calculations and your front to rear diameter difference is only 1.5% which is reasonable.
Appreciate 0
      10-24-2019, 08:55 AM   #18
BarryB
Lieutenant Colonel
BarryB's Avatar
United_States
865
Rep
1,758
Posts

Drives: 30Jahre M5 plus a few more M's
Join Date: May 2012
Location: Palo Alto CA

iTrader: (0)

Garage List
Quote:
Originally Posted by Transfer View Post
I have to correct myself. I was off on my calculations and your front to rear diameter difference is only 1.5% which is reasonable.
Perfect, thank you. I did push the dealer on this and they pushed back. So good to confirm all ok with this set up. As you commented and I saw, the 265/40 series is a no go with the fronts I have.
__________________
Current non-BMW's
20 Jeep Grand Cherokee
03 Cooper S (Maxi Tuned 50bhp)
60 Impala (43k orig mi)
15 Turbo S (Kobb tune and Kline exhaust)
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 03:07 AM.




g20
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST