Bimmerpost
3
/
4 Series
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications M340i speed limiter ?

Post Reply
 
Thread Tools Search this Thread
      02-06-2021, 09:43 AM   #23
tarrant64
Private First Class
116
Rep
122
Posts

Drives: M340i
Join Date: Nov 2020
Location: Midwest

iTrader: (0)

Quote:
Originally Posted by SlwG20 View Post
I have a ‘21 M340i on run flats & mine is 110% limited to 130. Actually almost got beat by a charger because of it.

Any one removed the limiter without a DME unlock ?
Nope.
Appreciate 0
      02-06-2021, 12:45 PM   #24
john!smith
Private First Class
john!smith's Avatar
230
Rep
171
Posts

Drives: M340i XDrive
Join Date: Dec 2019
Location: Germany

iTrader: (0)

no sir, 300 is not the Limit:-)
if you have enough power... it goes something like this
Appreciate 2
EXE462097.00
330iToy71.00
      02-06-2021, 12:51 PM   #25
SlwG20
New Member
10
Rep
28
Posts

Drives: BMW M340xi
Join Date: Nov 2020
Location: NYC

iTrader: (0)

Quote:
Originally Posted by john!smith View Post
no sir, 300 is not the Limit:-)
if you have enough power... it goes something like this
Probably an US limiter
Appreciate 0
      02-06-2021, 12:52 PM   #26
SlwG20
New Member
10
Rep
28
Posts

Drives: BMW M340xi
Join Date: Nov 2020
Location: NYC

iTrader: (0)

Quote:
Originally Posted by tarrant64 View Post
Nope.
I want my money back
Appreciate 0
      02-06-2021, 01:53 PM   #27
tarrant64
Private First Class
116
Rep
122
Posts

Drives: M340i
Join Date: Nov 2020
Location: Midwest

iTrader: (0)

Quote:
Originally Posted by SlwG20 View Post
Quote:
Originally Posted by john!smith View Post
no sir, 300 is not the Limit:-)
if you have enough power... it goes something like this
Probably an US limiter
US is limited to 130 or 155, depending on wheel package selected.

As I've stated I'm telling my self I'm not bent out of shape about it, but I slightly am. Seems like an easy enough option to just change but it's not. And it's very obscure and not called out on vehicle builds. You have to know to look for it and get the detailed spec sheet. I did from my dealer and it "still" wasn't on there. I didn't know to to look for "x" wheel package, most don't.

As I said though, it's relatively minor given the speed we're talking about. But for what the vehicle is marketed as, it makes zero sense. Just don't sell the car with tires not rated at 155+mph. It's that easy.
Appreciate 0
      02-09-2021, 02:56 PM   #28
NthKent
Private First Class
NthKent's Avatar
England
136
Rep
193
Posts

Drives: BMW M340i
Join Date: Feb 2021
Location: Whitstable; England

iTrader: (0)

In England no one really uses winter tyres so our cars follow the voluntary “gentlemen’s agreement” restriction set by German manufacturers of 155mph.
Appreciate 0
      02-10-2021, 09:47 AM   #29
Jschw488
Registered
Jschw488's Avatar
2
Rep
1
Posts

Drives: 2021 M340i Xdrive
Join Date: Feb 2021
Location: Wisco

iTrader: (0)

Just received my '21 m340 xdrive. I did choose the summer performance run flats, not all season, and it states on the build sheet, "840 Increased top speed limiter", because the tires are rated for it. See the attached. As others have shared the all season tires are speed limited, at lease in US. Totally bummer if you purchased with all seasons.
Attached Images
 
Appreciate 1
tarrant64116.00
      02-10-2021, 07:59 PM   #30
tarrant64
Private First Class
116
Rep
122
Posts

Drives: M340i
Join Date: Nov 2020
Location: Midwest

iTrader: (0)

Quote:
Originally Posted by Jschw488 View Post
Just received my '21 m340 xdrive. I did choose the summer performance run flats, not all season, and it states on the build sheet, "840 Increased top speed limiter", because the tires are rated for it. See the attached. As others have shared the all season tires are speed limited, at lease in US. Totally bummer if you purchased with all seasons.
Tell me about it.....*tears*
Appreciate 0
      02-10-2021, 08:49 PM   #31
Patgilm
First Lieutenant
181
Rep
355
Posts

Drives: GT-R, X7 M50i, M340
Join Date: May 2019
Location: Crofton, MD

iTrader: (0)

Quote:
Originally Posted by Jschw488 View Post
Just received my '21 m340 xdrive. I did choose the summer performance run flats, not all season, and it states on the build sheet, "840 Increased top speed limiter", because the tires are rated for it. See the attached. As others have shared the all season tires are speed limited, at lease in US. Totally bummer if you purchased with all seasons.
Weird, I was told earlier on this thread that they didn’t have an option for summer run-flats for 2021 models like they did for 2020 models. Like you, I opted for summer run-flats.
Appreciate 0
      02-10-2021, 08:58 PM   #32
CrownRoyal79
Lieutenant
CrownRoyal79's Avatar
United_States
283
Rep
402
Posts

Drives: BMW 435i
Join Date: Mar 2019
Location: VA

iTrader: (0)

Quote:
Originally Posted by Patgilm View Post
If you ordered the M340 with summer tires, either runflat or non-runflat it increases the top speed limiter. If you ordered with all-season tires top speed is limited to 130mph. Not sure where people are saying the summer runflats are limited too unless that is something new for 2021 but it wasn't that way when I ordered my 2020.
This is exactly right for the 2020 models. I got 20" 794M wheels with summer RFT's with the speed limiter set at 155mph.
Appreciate 0
      02-12-2021, 02:21 AM   #33
PortimaoM340NYC
Enlisted Member
United_States
27
Rep
44
Posts

Drives: BMW M340
Join Date: Oct 2020
Location: New York

iTrader: (0)

I wonder if I change the tire setting put that i have different tires. would it change the speed limiter to 155mph from 130mph changing the tires settings. cuz 130mph gets too quick
Appreciate 0
      02-12-2021, 09:20 AM   #34
VipinLJ
Petrolhead
VipinLJ's Avatar
United_States
1937
Rep
3,520
Posts

Drives: ‘20 330i,‘16 X3,‘18 SQ5,‘17 A7
Join Date: Nov 2019
Location: Illinois

iTrader: (2)

Quote:
Originally Posted by PortimaoM340NYC View Post
I wonder if I change the tire setting put that i have different tires. would it change the speed limiter to 155mph from 130mph changing the tires settings. cuz 130mph gets too quick
Nope. You'll still be limited to 130mph.
__________________
Current:
2020 BMW 330i xDrive
2018 Audi SQ5 Prestige
2017 Audi A7 Prestige
Appreciate 0
      02-12-2021, 09:35 AM   #35
PortimaoM340NYC
Enlisted Member
United_States
27
Rep
44
Posts

Drives: BMW M340
Join Date: Oct 2020
Location: New York

iTrader: (0)

Quote:
Originally Posted by VipinLJ View Post
Quote:
Originally Posted by PortimaoM340NYC View Post
I wonder if I change the tire setting put that i have different tires. would it change the speed limiter to 155mph from 130mph changing the tires settings. cuz 130mph gets too quick
Nope. You'll still be limited to 130mph.
did you try it?
Appreciate 0
      02-12-2021, 09:35 AM   #36
VipinLJ
Petrolhead
VipinLJ's Avatar
United_States
1937
Rep
3,520
Posts

Drives: ‘20 330i,‘16 X3,‘18 SQ5,‘17 A7
Join Date: Nov 2019
Location: Illinois

iTrader: (2)

Quote:
Originally Posted by PortimaoM340NYC View Post
did you try it?
I did No luck. I tried setting it to summer tyres, other tyres etc. Different sizes. Didn't help.
__________________
Current:
2020 BMW 330i xDrive
2018 Audi SQ5 Prestige
2017 Audi A7 Prestige
Appreciate 0
      02-12-2021, 09:36 AM   #37
PortimaoM340NYC
Enlisted Member
United_States
27
Rep
44
Posts

Drives: BMW M340
Join Date: Oct 2020
Location: New York

iTrader: (0)

Quote:
Originally Posted by VipinLJ View Post
Quote:
Originally Posted by PortimaoM340NYC View Post
did you try it?
I did No luck.
damnnn it.. I wished I knew about this shit before ordering my car
Appreciate 2
      02-12-2021, 09:41 AM   #38
VipinLJ
Petrolhead
VipinLJ's Avatar
United_States
1937
Rep
3,520
Posts

Drives: ‘20 330i,‘16 X3,‘18 SQ5,‘17 A7
Join Date: Nov 2019
Location: Illinois

iTrader: (2)

Quote:
Originally Posted by PortimaoM340NYC View Post
damnnn it.. I wished I knew about this shit before ordering my car
Ah. Well. Your only option was either get the performance package (or whatever it's called with the summer tyres) or get an aftermarket tune. But realistically it won't be an issue since we (or I) can't even do 100mph without worrying about the popo.
__________________
Current:
2020 BMW 330i xDrive
2018 Audi SQ5 Prestige
2017 Audi A7 Prestige
Appreciate 0
      02-12-2021, 09:49 AM   #39
PortimaoM340NYC
Enlisted Member
United_States
27
Rep
44
Posts

Drives: BMW M340
Join Date: Oct 2020
Location: New York

iTrader: (0)

Quote:
Originally Posted by VipinLJ View Post
Quote:
Originally Posted by PortimaoM340NYC View Post
damnnn it.. I wished I knew about this shit before ordering my car
Ah. Well. Your only option was either get the performance package (or whatever it's called with the summer tyres) or get an aftermarket tune. But realistically it won't be an issue since we (or I) can't even do 100mph without worrying about the popo.
yeah I said the same thing to keep my self calm about it. popo,

but its the tires packages nothing with performance package. if you get performance package u not gone get all season tire to begin with. its more tire packages u select.
Appreciate 0
      02-12-2021, 10:09 AM   #40
VipinLJ
Petrolhead
VipinLJ's Avatar
United_States
1937
Rep
3,520
Posts

Drives: ‘20 330i,‘16 X3,‘18 SQ5,‘17 A7
Join Date: Nov 2019
Location: Illinois

iTrader: (2)

Quote:
Originally Posted by PortimaoM340NYC View Post
yeah I said the same thing to keep my self calm about it. popo,

but its the tires packages nothing with performance package. if you get performance package u not gone get all season tire to begin with. its more tire packages u select.
Ah yes. That makes sense. Only if there was a way to overcome it without an aftermarket tune. Oh well. All my cars are limited to 130 (129mph according to GPS).
__________________
Current:
2020 BMW 330i xDrive
2018 Audi SQ5 Prestige
2017 Audi A7 Prestige
Appreciate 0
      02-12-2021, 09:00 PM   #41
tarrant64
Private First Class
116
Rep
122
Posts

Drives: M340i
Join Date: Nov 2020
Location: Midwest

iTrader: (0)

Quote:
Originally Posted by VipinLJ View Post
Ah yes. That makes sense. Only if there was a way to overcome it without an aftermarket tune. Oh well. All my cars are limited to 130 (129mph according to GPS).
That's what I've been saying. There's no reason to not have it within iDrive where when updating your tire size/spec that it'll update the speed rating based off the tire. The car is smart enough for that. Seems like it's an easy thing to do, without having it locked from factory that way. People change tires all the time, doesn't make sense to not just automatically adjust the speed limiter by that.
Appreciate 0
      02-12-2021, 09:29 PM   #42
thakid22
Lieutenant
United_States
287
Rep
595
Posts

Drives: 2021 Bmw M340i M-Sport w/ VDC
Join Date: May 2013
Location: Little Rock

iTrader: (0)

Quote:
Originally Posted by tarrant64 View Post
That's what I've been saying. There's no reason to not have it within iDrive where when updating your tire size/spec that it'll update the speed rating based off the tire. The car is smart enough for that. Seems like it's an easy thing to do, without having it locked from factory that way. People change tires all the time, doesn't make sense to not just automatically adjust the speed limiter by that.
The reason why BMW doesn't let the consumer easily change the top speed limit, is because someone will inevitably increase/remove the limiter whilst keeping the factory H rated tires.

When tires are driven over their speed rating for extended periods of time, or in harsh conditions, they are prone to failure.

Most BMW models can easily achieve 160+ mph. A tire related failure at those speeds could very well cause catastrophic damage. Considering the litigious nature of the world (especially North America), the BMW lawyers did do the right thing by not making the top speed an iDrive configurable setting.


That being said, there is no reason why the dealership shouldn't have the capability to adjust top speed to match new tire specifications. But they don't.
Appreciate 1
      02-12-2021, 09:44 PM   #43
VipinLJ
Petrolhead
VipinLJ's Avatar
United_States
1937
Rep
3,520
Posts

Drives: ‘20 330i,‘16 X3,‘18 SQ5,‘17 A7
Join Date: Nov 2019
Location: Illinois

iTrader: (2)

Quote:
Originally Posted by thakid22 View Post
The reason why BMW doesn't let the consumer easily change the top speed limit, is because someone will inevitably increase/remove the limiter whilst keeping the factory H rated tires.
Exactly! Locking it removes BMW from any liability.
__________________
Current:
2020 BMW 330i xDrive
2018 Audi SQ5 Prestige
2017 Audi A7 Prestige
Appreciate 0
      04-09-2021, 05:13 PM   #44
master_j
New Member
0
Rep
6
Posts

Drives: M340ix
Join Date: Sep 2016
Location: NJ

iTrader: (0)

Anyone try removing the fuse ? Any luck?
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 03:26 PM.




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