RFT v conventional!

ALBEE · 01-21-2011, 09:57 AM

May sound like a dumb question, but if I go from 'run-flats' to regular tyres, will it have any effect on the tyre pressure 'monitoring' system?
ps. how does the system work anyway?!

Cheers AL

SteveF1 · 01-21-2011, 10:06 AM

No it wont as the TPMS works off the ABS sensor and calculates loss in pressure via that and wheel rotation I believe.

There is no actual tyre pressure sensor in the tyre or wheel so changing tyres makes no difference. Just make sure you reset the TPMS meter through the BC after you change.

HighlandPete · 01-21-2011, 10:53 AM

As said, works the same. To be a bit pedantic, BMW don't use the TPMS term anymore, as it is a bit misleading. Some folks have believed they would be informed when the pressures were low, due to the 'monitoring', therefore not even checking tyre pressures.

TPWS is used "Tyre Pressure Warning System", as it doesn't strictly monitor the pressure, calculates the deviation, (due to wheel rotational speeds), from the calibrated setting.

HighlandPete

ALBEE · 01-21-2011, 10:53 AM

Cheers Steve!

ALBEE · 01-21-2011, 10:54 AM

And Pete!

01-21-2011, 09:57 AM	#1
ALBEE Second Lieutenant 40 Rep 208 Posts Drives: 440i Coupe Ind + 96 M3 Join Date: Mar 2010 Location: Hampshire iTrader: (0)	RFT v conventional! May sound like a dumb question, but if I go from 'run-flats' to regular tyres, will it have any effect on the tyre pressure 'monitoring' system? ps. how does the system work anyway?! Cheers AL
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01-21-2011, 10:06 AM	#2
SteveF1 Captain 27 Rep 626 Posts Drives: BMW 320D M Sport Join Date: Mar 2010 Location: Manchester iTrader: (0)	No it wont as the TPMS works off the ABS sensor and calculates loss in pressure via that and wheel rotation I believe. There is no actual tyre pressure sensor in the tyre or wheel so changing tyres makes no difference. Just make sure you reset the TPMS meter through the BC after you change.
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01-21-2011, 10:53 AM	#3
HighlandPete Lieutenant General 6659 Rep 15,858 Posts Drives: BMW F11 535i Touring Join Date: Mar 2007 Location: Scotland, Highland Region iTrader: (0)	As said, works the same. To be a bit pedantic, BMW don't use the TPMS term anymore, as it is a bit misleading. Some folks have believed they would be informed when the pressures were low, due to the 'monitoring', therefore not even checking tyre pressures. TPWS is used "Tyre Pressure Warning System", as it doesn't strictly monitor the pressure, calculates the deviation, (due to wheel rotational speeds), from the calibrated setting. HighlandPete
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01-21-2011, 10:53 AM	#4
ALBEE Second Lieutenant 40 Rep 208 Posts Drives: 440i Coupe Ind + 96 M3 Join Date: Mar 2010 Location: Hampshire iTrader: (0)	Cheers Steve!
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01-21-2011, 10:54 AM	#5
ALBEE Second Lieutenant 40 Rep 208 Posts Drives: 440i Coupe Ind + 96 M3 Join Date: Mar 2010 Location: Hampshire iTrader: (0)	And Pete!
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