new wheels - TPMS? - sensors on each wheel, or differential calculation from ABS?

Icekube · 10-28-2013, 01:07 PM

Hi All,

I'm about to be fitting some winters, and am wondering what kind of TPMS the E91 uses, is it sensors in each wheel, or is it the ABS system monitoring over/under rotation?

im kinda hoping its the latter, so i dont have to spend 200quid on another set of sensors....

the tyres appear to have normal valves in them, which is why im thinking its the over/under rotation monitoring system.

Thanks,
Craig

AlwynMike · 10-28-2013, 01:26 PM

TPMS runs from the ABS sensors.

The only monitoring systems that use discrete sensors are those that display individual tyre pressures.

Just remember to reset the TPMS when you put on the new tyres/wheels.

Mike

JYohay · 10-28-2013, 02:21 PM

Quote:

Originally Posted by AlwynMike

TPMS runs from the ABS sensors.

The only monitoring systems that use discrete sensors are those that display individual tyre pressures.

Just remember to reset the TPMS when you put on the new tyres/wheels.

Mike

ummmm where did u get that info from?
the E9x platform uses individual sensors in each wheel, with receivers mounted in the wheel wells.
many people just deal with the dash light for winter, since you know when you have a flat on NON-rft winter tires pretty obviously

seanblee · 10-28-2013, 02:39 PM

In the US, the system is TPMS (Tyre Pressure Monitoring System) with sensors in the valve stems. The system fitted to UK cars is FTM (Flat Tyre Monitor) that uses the ABS wheel speed sensors.

Icekube · 10-28-2013, 04:10 PM

yea im assuming its the ABS system doing the work, as i just have the standard rubber valve stems in my current (standard) wheels

Tunna_uk · 10-28-2013, 04:59 PM

Quote:

Originally Posted by AlwynMike

TPMS runs from the ABS sensors.

The only monitoring systems that use discrete sensors are those that display individual tyre pressures.

Just remember to reset the TPMS when you put on the new tyres/wheels.

Mike

Correct. I have run winter set for two years no issues

JYohay · 11-01-2013, 10:20 AM

damn you guys are lucky

KM79 · 11-01-2013, 06:30 PM

Works from rotational speeds of each wheel,and compares.A flat /soft tyre will have a different rotation from a good one and this is how it determines a fault.Works through the DSC system.

10-28-2013, 01:07 PM	#1
Icekube Captain 46 Rep 891 Posts Drives: E87 130i Join Date: May 2013 Location: Livingston iTrader: (3)	new wheels - TPMS? - sensors on each wheel, or differential calculation from ABS? Hi All, I'm about to be fitting some winters, and am wondering what kind of TPMS the E91 uses, is it sensors in each wheel, or is it the ABS system monitoring over/under rotation? im kinda hoping its the latter, so i dont have to spend 200quid on another set of sensors.... the tyres appear to have normal valves in them, which is why im thinking its the over/under rotation monitoring system. Thanks, Craig
	Appreciate 0 Tweet Quote

10-28-2013, 01:26 PM	#2
AlwynMike Lieutenant Colonel 354 Rep 1,685 Posts Drives: F36 440i GC. Join Date: Sep 2010 Location: Lincolnshire Flatlands iTrader: (1)	TPMS runs from the ABS sensors. The only monitoring systems that use discrete sensors are those that display individual tyre pressures. Just remember to reset the TPMS when you put on the new tyres/wheels. Mike
	Appreciate 0 Quote

10-28-2013, 02:39 PM	#4
seanblee Captain 59 Rep 799 Posts Drives: 2021 G21 M340i Join Date: Dec 2008 Location: Enfield, UK iTrader: (2)	In the US, the system is TPMS (Tyre Pressure Monitoring System) with sensors in the valve stems. The system fitted to UK cars is FTM (Flat Tyre Monitor) that uses the ABS wheel speed sensors. __________________ 2021 G21 M340i XDrive \| ACS springs and spacers Previously 2019 VW Golf GTI Performance \| H&R rear ARB Previously 2007 E92 335i SE auto \| Quaife LSD \| Birds B3 ARBs \| Evolve Stage 1
	Appreciate 0 Quote

10-28-2013, 04:10 PM	#5
Icekube Captain 46 Rep 891 Posts Drives: E87 130i Join Date: May 2013 Location: Livingston iTrader: (3)	yea im assuming its the ABS system doing the work, as i just have the standard rubber valve stems in my current (standard) wheels
	Appreciate 0 Quote

11-01-2013, 10:20 AM	#7
JYohay Banned 48 Rep 2,009 Posts Drives: 2011 X5 Join Date: Mar 2012 Location: NY iTrader: (3)	damn you guys are lucky
	Appreciate 0 Quote

11-01-2013, 06:30 PM	#8
KM79 Major 140 Rep 1,445 Posts Drives: 2017 335D Msport Saloon Join Date: Jul 2013 Location: Scotland iTrader: (0)	Works from rotational speeds of each wheel,and compares.A flat /soft tyre will have a different rotation from a good one and this is how it determines a fault.Works through the DSC system.
	Appreciate 0 Quote