Tire Pressure Reading

2msport · 08-13-2014, 06:38 PM

Quote:

Originally Posted by pikcachu

well not really the rotational one is much cheaper cause it's done through the ABS sensor i think and doesn't require a dedicated sensor inside the tire... ie. canada only gets that one with no PSI....

no matter if it's the FTM or TPM they will call it TPMS for consistency purposes

Ok that makes sense but then how would the system know that the tire is low when parked. The ABS wouldn't be able to sense anything with the wheel spinning. I've seen it low in the morning.

ska///235i · 08-13-2014, 06:39 PM

Quote:

Originally Posted by 2msport

Quote:

Originally Posted by pikcachu

well not really the rotational one is much cheaper cause it's done through the ABS sensor i think and doesn't require a dedicated sensor inside the tire... ie. canada only gets that one with no PSI....

no matter if it's the FTM or TPM they will call it TPMS for consistency purposes

Ok that makes sense but then how would the system know that the tire is low when parked. The ABS wouldn't be able to sense anything with the wheel spinning. I've seen it low in the morning.

Again...all US cars (not just bmws) have tpms (not ftm) since 2008

2msport · 08-13-2014, 06:48 PM

Quote:

Originally Posted by ska///235i

Again...all US cars (not just bmws) have tpms (not ftm) since 2008

Lol. I don't even know why I wasted my breath. You're right. You did already say that. Thanks for the info!

SmallTownBoy · 08-13-2014, 09:23 PM

Quote:

Originally Posted by pikcachu

well not really the rotational one is much cheaper cause it's done through the ABS sensor i think and doesn't require a dedicated sensor inside the tire... ie. canada only gets that one with no PSI....

no matter if it's the FTM or TPM they will call it TPMS for consistency purposes

My iDrive shows only FTM, not TPMS. Canadian M235i, no tech, no nav, Michelin PSS, rubber valve stems.

DanG · 08-13-2014, 09:33 PM

I also have Michelin Super Sports not run flats.

jhbjrpdx · 08-14-2014, 11:23 PM

Well this is maddening. I have a Jan build (yea, it was the first 228i in Portland) and I don't have the readings. Seems from this tread that it may have been a March build TPS upgrade thing and/or it can be programmed. I feel like a detective trying to solve a murder. Who killed the tire pressures and when?

pdubb · 11-20-2014, 08:50 PM

Anyone get this solved?
I just picked up my 2015 m235 and I have no readings but I have the PSI and F symbols there. I thought when I started driving they would populate but.. not yet.

pikcachu · 11-20-2014, 09:33 PM

try a pressure reset

pdubb · 11-20-2014, 09:48 PM

Ya i spoke too soon. I just checked and now its up there. Although the back left tire shows 9 degrees cooler than all the rest.

Since we're here, what is recommended PSI for Front and Rear for PSS?

pikcachu · 11-20-2014, 11:33 PM

Quote:

Originally Posted by pdubb

Ya i spoke too soon. I just checked and now its up there. Although the back left tire shows 9 degrees cooler than all the rest.

Since we're here, what is recommended PSI for Front and Rear for PSS?

32f 38r

08-13-2014, 09:33 PM	#27
DanG Major General 10707 Rep 6,949 Posts Drives: 2018 M2 AW DCT Join Date: Aug 2012 Location: Seattle, WA iTrader: (1) Garage List 2018 BMW M2 [7.74]	I also have Michelin Super Sports not run flats.
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08-14-2014, 11:23 PM	#28
jhbjrpdx Private 11 Rep 55 Posts Drives: 228i Sportline Join Date: Feb 2014 Location: Portland OR iTrader: (0)	Well this is maddening. I have a Jan build (yea, it was the first 228i in Portland) and I don't have the readings. Seems from this tread that it may have been a March build TPS upgrade thing and/or it can be programmed. I feel like a detective trying to solve a murder. Who killed the tire pressures and when?
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11-20-2014, 08:50 PM	#29
pdubb Private 9 Rep 73 Posts Drives: '15 M235i \| '12 Audi S5 V8 MT Join Date: Nov 2006 Location: Orange County iTrader: (0)	Anyone get this solved? I just picked up my 2015 m235 and I have no readings but I have the PSI and F symbols there. I thought when I started driving they would populate but.. not yet.
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11-20-2014, 09:33 PM	#30
pikcachu Major General 1406 Rep 5,262 Posts Drives: M235i (F22 Red angel) Join Date: Jul 2011 Location: undisclosed iTrader: (1)	try a pressure reset
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11-20-2014, 09:48 PM	#31
pdubb Private 9 Rep 73 Posts Drives: '15 M235i \| '12 Audi S5 V8 MT Join Date: Nov 2006 Location: Orange County iTrader: (0)	Ya i spoke too soon. I just checked and now its up there. Although the back left tire shows 9 degrees cooler than all the rest. Since we're here, what is recommended PSI for Front and Rear for PSS?
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