BMW 1-Series Forum (F20) 135i - 1Addicts.com > Second Generation 1 Series Forum > 2012 BMW 1-Series Sporthatch (F20) Discussion > M140i - Steering / Suspension 'noise' / thump ...
Post Reply
 
Thread Tools Search this Thread
      03-28-2017, 08:14 AM   #23
ovekvam
Brigadier General
Norway
266
Rep
3,290
Posts

Drives: 2021 Galvanic Gold i3S
Join Date: Jun 2012
Location: Bryne, Norway

iTrader: (0)

Quote:
Originally Posted by SpeedTrip View Post
Keeping a closer eye on Tyre pressures has made me realise how variable the TPMS valves are at reporting pressure and temp ....
Please elaborate. Do they not seem accurate? Anybody know how they work, since they need so long calibration runs?
Appreciate 0
      03-28-2017, 12:01 PM   #24
SpeedTrip
Second Lieutenant
SpeedTrip's Avatar
England
26
Rep
267
Posts

Drives: F21 M140i LCI-2 Alpine
Join Date: Sep 2013
Location: UK

iTrader: (0)

Garage List
2 of the 4 'valves' show different start up readings every journey ... seem to settle down after 4 or 5 miles..... the other pair (same axle 'mates') never vary !

the worst one will initially show 0.2 to 0.3 Bars higher than its 'mate' on the same axle - but more worryingly it starts at a far higher temperature than its 'mate' - often some 7 or 8 C higher - again after a few miles, it levels out, dropping temp a bit and the 'mate' warms up so they usually end up within 1 or 2 degrees C ...

No idea how they work, or if they are supposed to be 'matched' in some way .... certainly do take a long time to reset with the calibration run.
__________________
M140i LCI-2 is the 16th BMW since 1977 ....

320i *2, 323i, 520i *2, 540i, 535i, 840i, E36 M5, 328i, 530i, 320d, 535d, M135i, M140i * 2
Appreciate 0
      03-29-2017, 02:22 AM   #25
Bee Pee
Brigadier General
United Kingdom
1738
Rep
4,496
Posts

Drives: AW M2 DCT
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Quote:
Originally Posted by SpeedTrip View Post
Surprised nobody else with an M140 (or even 135i) has not commented ......
have a read of this BB thread.

http://www.babybmw.net/forum/viewtop...metry#p1195880

The noise you hear is a by-product of the F2x front "Ackerman" geometry
__________________
Fettled M135i EB AT - gone but not forgotten:
AW M2 DCT
Appreciate 0
      03-29-2017, 06:54 AM   #26
SpeedTrip
Second Lieutenant
SpeedTrip's Avatar
England
26
Rep
267
Posts

Drives: F21 M140i LCI-2 Alpine
Join Date: Sep 2013
Location: UK

iTrader: (0)

Garage List
Thx - does sound a similar issue - except for the 'twang' description .... was pretty sure it wasnt the firmware hike for adaptive suspension issue !
__________________
M140i LCI-2 is the 16th BMW since 1977 ....

320i *2, 323i, 520i *2, 540i, 535i, 840i, E36 M5, 328i, 530i, 320d, 535d, M135i, M140i * 2
Appreciate 0
      03-30-2017, 05:19 AM   #27
Bee Pee
Brigadier General
United Kingdom
1738
Rep
4,496
Posts

Drives: AW M2 DCT
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Quote:
Originally Posted by SpeedTrip View Post
Thx - does sound a similar issue - except for the 'twang' description .... was pretty sure it wasnt the firmware hike for adaptive suspension issue !
Did the adaptive FW tweak work ? Any details of what's involved ?
__________________
Fettled M135i EB AT - gone but not forgotten:
AW M2 DCT
Appreciate 0
      03-30-2017, 06:06 AM   #28
SpeedTrip
Second Lieutenant
SpeedTrip's Avatar
England
26
Rep
267
Posts

Drives: F21 M140i LCI-2 Alpine
Join Date: Sep 2013
Location: UK

iTrader: (0)

Garage List
Quote:
Originally Posted by SpeedTrip View Post
Yes, thats what they did when it went in - sorry if that wasnt clear ...

No, not fixed - it did it again a couple of days later - again, it took a frosty temp to bring it on ....

No recurrence since the weather has warmed up ...

++ IE - Yes, the F/W tweak was applied & didnt work - other things in the update tho ++
__________________
M140i LCI-2 is the 16th BMW since 1977 ....

320i *2, 323i, 520i *2, 540i, 535i, 840i, E36 M5, 328i, 530i, 320d, 535d, M135i, M140i * 2
Appreciate 0
      03-30-2017, 07:21 AM   #29
Bee Pee
Brigadier General
United Kingdom
1738
Rep
4,496
Posts

Drives: AW M2 DCT
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Quote:
Originally Posted by SpeedTrip View Post
...other things in the update tho ++
Interesting - tell us more.....
__________________
Fettled M135i EB AT - gone but not forgotten:
AW M2 DCT
Appreciate 0
      04-03-2017, 03:01 AM   #30
SpeedTrip
Second Lieutenant
SpeedTrip's Avatar
England
26
Rep
267
Posts

Drives: F21 M140i LCI-2 Alpine
Join Date: Sep 2013
Location: UK

iTrader: (0)

Garage List
Quote:
Originally Posted by Bee Pee View Post
Interesting - tell us more.....

Dunno, thats all the Tech said when I collected it ! I did notice that the I-Drive screens behaved a little differently - eg coming back to Trip detail after being in reverse (rather than main menu), and also not defaulting to any particular menu item in 'MyVehicle' on start up ...

The TPMS values continue to behave oddly on startup and 1st few miles ....
__________________
M140i LCI-2 is the 16th BMW since 1977 ....

320i *2, 323i, 520i *2, 540i, 535i, 840i, E36 M5, 328i, 530i, 320d, 535d, M135i, M140i * 2
Appreciate 0
      02-13-2023, 06:48 AM   #31
steman1770
Registered
United Kingdom
0
Rep
2
Posts

Drives: m140i 2017
Join Date: Feb 2023
Location: Merseyside

iTrader: (0)

I have an m140i 2017 ( not shadow edition) do I have adaptive suspension or m suspension dampers
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 04:16 AM.




1addicts
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