Flat Tire No Puncture??

Enjoiyourlife · 06-19-2008, 10:21 AM

Hey guys..

Got up to drive to work yesterday and while on the freeway my sensor went off so I pulled over at a gas station and filled the tire up with air.

Drove back home and left it in the driveway and took the Cayenne to work....

Got home from work that day and drove the 335 to the gym... Everything was good......

This morning I thought maybe i can take the E92 to work so I got on the freeway and the sensor goes off again!!! I pull over at the gas station and I'm running on like 3.5 PSI!! Almost ridin on the rim. wtf.....

Does this sound like a puncture? I dunno b/c it only loses air while driving at high speeds...

Or can it be a faulty valve stem? Trying to decide what to do/where to take it after I get home from work today.. I know discount tire repairs tires but I dunno... Pain in the ass. wish I had a spare tire but glad I ditched the runflats.

Thanks in advance...

BMW F22 · 06-19-2008, 12:19 PM

It could be the valves that are leaking. I would check to make sure there is no nails in the tires (sometimes they are very hard to spot) and take it to the dealer to have it inspected.

fast_lap28 · 06-19-2008, 12:36 PM

I had this happen to me, it was valve stems! it only lost pressure on highway...

Enjoiyourlife · 06-19-2008, 01:24 PM

i checked the tires pretty thoroughly for nails... or anything that could puncture and I couldnt find anything!

I have aftermarket wheels/tires.... is that something I should take to the dealership still? If it is a valve stem i would assume it can be replaced?...

BMW MotorSport · 06-19-2008, 06:16 PM

If you don't have a nail or puncture it deff is going to be the valve stems, they do go out once in a while since there is only a round rubber grommet inbetween the wheel and stem. Don't take it to the dealer because they will rip you. Just take it to a local tire shop near your house and get it inspected.
Let me know if you need some help and I can get you the rubber for your Valve stem.

06-19-2008, 10:21 AM	#1
Enjoiyourlife Sensei 52 Rep 1,054 Posts Drives: E92 335i Join Date: Mar 2008 Location: San Diego iTrader: (3)	Flat Tire No Puncture?? Hey guys.. Got up to drive to work yesterday and while on the freeway my sensor went off so I pulled over at a gas station and filled the tire up with air. Drove back home and left it in the driveway and took the Cayenne to work.... Got home from work that day and drove the 335 to the gym... Everything was good...... This morning I thought maybe i can take the E92 to work so I got on the freeway and the sensor goes off again!!! I pull over at the gas station and I'm running on like 3.5 PSI!! Almost ridin on the rim. wtf..... Does this sound like a puncture? I dunno b/c it only loses air while driving at high speeds... Or can it be a faulty valve stem? Trying to decide what to do/where to take it after I get home from work today.. I know discount tire repairs tires but I dunno... Pain in the ass. wish I had a spare tire but glad I ditched the runflats. Thanks in advance... __________________
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06-19-2008, 12:19 PM	#2
BMW F22 Major General 3566 Rep 9,788 Posts Drives: ///M235i Join Date: Nov 2005 Location: Bay Area iTrader: (8)	It could be the valves that are leaking. I would check to make sure there is no nails in the tires (sometimes they are very hard to spot) and take it to the dealer to have it inspected.
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06-19-2008, 12:36 PM	#3
fast_lap28 Lieutenant 40 Rep 494 Posts Drives: '07 335i Montego Join Date: Jun 2007 Location: Charlotte, NC iTrader: (0)	I had this happen to me, it was valve stems! it only lost pressure on highway...
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06-19-2008, 01:24 PM	#4
Enjoiyourlife Sensei 52 Rep 1,054 Posts Drives: E92 335i Join Date: Mar 2008 Location: San Diego iTrader: (3)	i checked the tires pretty thoroughly for nails... or anything that could puncture and I couldnt find anything! I have aftermarket wheels/tires.... is that something I should take to the dealership still? If it is a valve stem i would assume it can be replaced?... __________________
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06-19-2008, 06:16 PM	#5
BMW MotorSport Banned 100 Rep 2,528 Posts Drives: 95 Avus M3 and 07 E90 Fam Car! Join Date: Nov 2006 Location: So Cal, Simi Valley iTrader: (4)	If you don't have a nail or puncture it deff is going to be the valve stems, they do go out once in a while since there is only a round rubber grommet inbetween the wheel and stem. Don't take it to the dealer because they will rip you. Just take it to a local tire shop near your house and get it inspected. Let me know if you need some help and I can get you the rubber for your Valve stem.
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