BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Wheels + Tires Sponsored by The Tire Rack
  TireRack

KEEP M3POST ALIVE BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER LINK!
Post Reply
 
Thread Tools Search this Thread
      06-27-2011, 12:28 PM   #1
GreasyGinzo
Captain
GreasyGinzo's Avatar
United_States
11
Rep
636
Posts

 
Drives: '08 E92 AW 6MT M3(Totaled)
Join Date: Dec 2010
Location: North Jersey

iTrader: (1)

Question about TPMS

08 M3 with iDrive...Do these cars use two different style TPMS? I ask because I think I remeber reading that the car senses the wheel speed and detects low tire pressure that way (like the MINI's do). But there is also TPM sensors in each wheel that monitors actual tire pressure.
__________________
Appreciate 0
      07-03-2011, 10:34 PM   #2
bigeye
Enlisted Member
0
Rep
34
Posts

 
Drives: E92 M3
Join Date: Mar 2011
Location: Perth, Australia

iTrader: (0)

I would also like to know how the TPMS works...
Appreciate 0
      07-03-2011, 11:34 PM   #3
signes
Brigadier General
signes's Avatar
United_States
63
Rep
4,213
Posts

 
Drives: E90 M3
Join Date: Sep 2008
Location: Spinnin at 8k

iTrader: (3)

All E9x M3s use sensors in each wheel. The wheel sensor changed slightly for the 2010 model year so there are two different PNs (make sure you get the original one if replacing them for your car.) Euro, Canadian (?) and other markets still use sensors on the car that detect changes in rotational speed to determine pressure and whether a tire is going down (no wheel sensors). This is the way it was on the E46 M3 even in the US.
__________________
08 E90 | Jet Black / Black | 6MT
Mods: RAC RG63 w/ Pirelli Corsa 255F/285R | Akrapovic Evo Exhaust | OEM Blacklines
Winter Setup: OEM 18s w/ Nokian Hakkapeliita R 245/40-18
Appreciate 0
      01-03-2013, 03:56 PM   #4
MasterofGoing Faster
Registered
0
Rep
2
Posts

 
Drives: 2012 E92 M3
Join Date: Dec 2012
Location: Southern California

iTrader: (0)

How is it that each tire has a TPM sensor yet BMW cannot display which tire it is that is going down? In my 2012 E92 M3, whenever 1 tire drops, the TPM indicator shows all 4 tires faulted. At first I was told by the dealer that this indicated a speed sensor failure. I later saw for myself that each tire has a sensor within so it must not depend on sensing wheel speed. Why then does the reset procedure require you to roll off before it re-calibrates? Is it using a wheel speed sensor or tire pressure sensor? Despite what the manual says, they included a single sheet manual addendum indicating to ignore the manual ... when there is a low tire, the indicator will display all 4 tires as being low. Is this a special feature only applicable to M3s and why?
Appreciate 0
      01-03-2013, 08:34 PM   #5
4corners
Captain
4corners's Avatar
United_States
21
Rep
821
Posts

 
Drives: 2008 Jet Black M3 Coupe
Join Date: Feb 2011
Location: Yucca Valley, CA - Kelowna, BC

iTrader: (0)

Garage List
2008 BMW M3  [0.00]
2007 Ford E350 4x4  [2.75]
Quote:
Originally Posted by MasterofGoing Faster View Post
How is it that each tire has a TPM sensor yet BMW cannot display which tire it is that is going down? In my 2012 E92 M3, whenever 1 tire drops, the TPM indicator shows all 4 tires faulted. At first I was told by the dealer that this indicated a speed sensor failure. I later saw for myself that each tire has a sensor within so it must not depend on sensing wheel speed. Why then does the reset procedure require you to roll off before it re-calibrates? Is it using a wheel speed sensor or tire pressure sensor? Despite what the manual says, they included a single sheet manual addendum indicating to ignore the manual ... when there is a low tire, the indicator will display all 4 tires as being low. Is this a special feature only applicable to M3s and why?
My M3 shows exactly which tire is low. Right front, left rear, etc..
Appreciate 0
      01-03-2013, 09:33 PM   #6
Slapshot9
First Lieutenant
Slapshot9's Avatar
5
Rep
322
Posts

 
Drives: '08 E90 M3 JzB 6MT
Join Date: Dec 2011
Location: SoFla

iTrader: (0)

Quote:
Originally Posted by 4corners View Post
My M3 shows exactly which tire is low. Right front, left rear, etc..
+1
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
Forum Jump


All times are GMT -5. The time now is 04:10 PM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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