"Flat tire" issue

BMWinNorthdakota · 12-21-2009, 12:58 AM

After dropping my buddyoff, I headed home. Only to be provoked by an empty parking lot with about 2" of fresh unplowed snow. I couldn't resist to slip and slide around for a little..

After about 3mins of doing figure 8's around two light poles

, I get a warning on my I-drive stating I have a flat tire. I immediately get out to check it out. All 4 tires seem to have full pressure, so I head home and check again once I get to my drive way. Same conclusion, all 4 tires appear to be at the recommended PSI.

What caused this?

bsamoul · 12-21-2009, 01:00 AM

tpms sensor froze? could have been knocked loose?

idk, you seem to have REALLY bad luck with your car so I woudln't even play around with it haha

Budfox27 · 12-21-2009, 01:00 AM

Did you actually check the pressure?

NoSurrender · 12-21-2009, 02:49 AM

Probably due to the cold weather. Fill 'em up with some air. You should be fine.

BMWinNorthdakota · 12-21-2009, 10:38 AM

Quote:

Originally Posted by bsamoul

tpms sensor froze? could have been knocked loose?

idk, you seem to have REALLY bad luck with your car so I woudln't even play around with it haha

+1, this is what I am thinking. I-drive isnt throwing any more codes via the screen at me.

As far as the bad luck part, no kidding right?

RX7guy · 12-21-2009, 10:42 AM

Quote:

Originally Posted by Budfox27

Did you actually check the pressure?

+1 . Actually checking the pressure might tell you if its actually low or a 'false positive'. If all tires are fine pressure-wise, then reset the TPMS

Potty_Pants · 12-21-2009, 10:42 AM

just confused the sensors...

turn the car off and restart... prob will go away.

ppp

HoustonScott · 12-21-2009, 10:43 AM

Here is what is going on, the outside temp dropped where you are. The tire monitor system in you car works by measuring the circumference of the tire on the wheel. When the system detects a flat tire it alerts you because the tire is smaller when deflated and measures a smaller tire. When it got cold your tire changed shape and the system detected a small circumference and the system thought you had a flat. Vola...

HS

poiney · 12-21-2009, 11:40 AM

Quote:

Originally Posted by HoustonScott

Here is what is going on, the outside temp dropped where you are. The tire monitor system in you car works by measuring the circumference of the tire on the wheel. When the system detects a flat tire it alerts you because the tire is smaller when deflated and measures a smaller tire. When it got cold your tire changed shape and the system detected a small circumference and the system thought you had a flat. Vola...

HS

I think it depends on build date. I have 07 model (built ~ Sept-Oct '06) that has regular TPMS, confirmed when I replaced my tires. I think the OP experienced loss of pressure due to the very cold from the snow.

E92_328i_Boston · 12-21-2009, 11:45 AM

Agreed. If you're on 07 or later (I forget the exact build dates) you don't have Flat Tire Monitor, which measures the rolling circumference, but rather you have TPMS, which measures the pressure inside the tires.

-A

12-21-2009, 12:58 AM	#1
BMWinNorthdakota Banned 254 Rep 1,106 Posts Drives: 2007 bmw 335i e90 Join Date: Jun 2009 Location: Fargo ND iTrader: (0)	"Flat tire" issue After dropping my buddyoff, I headed home. Only to be provoked by an empty parking lot with about 2" of fresh unplowed snow. I couldn't resist to slip and slide around for a little.. After about 3mins of doing figure 8's around two light poles , I get a warning on my I-drive stating I have a flat tire. I immediately get out to check it out. All 4 tires seem to have full pressure, so I head home and check again once I get to my drive way. Same conclusion, all 4 tires appear to be at the recommended PSI. What caused this?
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12-21-2009, 01:00 AM	#2
bsamoul Major General 169 Rep 7,433 Posts Drives: E90 325i Join Date: Feb 2007 Location: Walnut Creek, California iTrader: (2)	tpms sensor froze? could have been knocked loose? idk, you seem to have REALLY bad luck with your car so I woudln't even play around with it haha __________________ -Brian 2X 2006 BMW 325i [Electric Red & Mystic Blue] \| ZPP \| V1 \| Rear Fogs \| M3 Lip Spoiler \| EAS RemoteKey \| BMS Powerbox \| Projector90 Headlights w/ LED AE \| LED plate lights \| OEM Blacklines http://www.tech-shine.com
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12-21-2009, 01:00 AM	#3
Budfox27 First Lieutenant 38 Rep 376 Posts Drives: 2011 Blue Onyx 335is Join Date: May 2007 Location: Tulsa, Ok iTrader: (0) Garage List 2007 BMW 335i [0.00]	Did you actually check the pressure?
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12-21-2009, 02:49 AM	#4
NoSurrender Private First Class 15 Rep 138 Posts Drives: E60 M5 Join Date: Jan 2009 Location: New York iTrader: (0)	Probably due to the cold weather. Fill 'em up with some air. You should be fine.
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12-21-2009, 10:42 AM	#7
Potty_Pants Colonel 70 Rep 2,189 Posts Drives: 2012 Genesis Sedan Rspec Join Date: Apr 2007 Location: Southern NJ iTrader: (0)	just confused the sensors... turn the car off and restart... prob will go away. ppp __________________ Olds Starfire > Chevy Malibu > Isuzu I-mark RS & Honda Magna 500 > Grand Am GT & YSR50 > Nissan Maxima & Ninja 750 > X-Wife > Hyundai Excel > Honda Prelude > Honda Accord > Honda Prelude & Ninja 250> Infiniti G35 > E90 335i > Hyundai Genesis Rspec, Hyunadai Sonata > Kia Sorento > Honda CRV-EX
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12-21-2009, 10:43 AM	#8
HoustonScott Lieutenant 25 Rep 436 Posts Drives: 2010 335d, montego Blue Join Date: Nov 2009 Location: Houston, Tx iTrader: (0)	Here is what is going on, the outside temp dropped where you are. The tire monitor system in you car works by measuring the circumference of the tire on the wheel. When the system detects a flat tire it alerts you because the tire is smaller when deflated and measures a smaller tire. When it got cold your tire changed shape and the system detected a small circumference and the system thought you had a flat. Vola... HS
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12-21-2009, 11:45 AM	#10
E92_328i_Boston First Lieutenant 13 Rep 313 Posts Drives: 2008 E92 328i Join Date: Apr 2008 Location: Boston iTrader: (0)	Agreed. If you're on 07 or later (I forget the exact build dates) you don't have Flat Tire Monitor, which measures the rolling circumference, but rather you have TPMS, which measures the pressure inside the tires. -A
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