Very very slow leak

undecided · 12-22-2007, 11:35 AM

I replaced the RFTs with Goodyear F1 All Seasons 3 weeks ago. 2 days ago one tire developed a 1-2 psi drop every 12 hours. There are no visible nails or screws in it and I don't hear any air leaks. Any ideas on what to do next?

Thanks

zenmaster · 12-22-2007, 12:39 PM

I had a similar leak problem, but with my RFT (1-2psi every 12 hours) . I finally took the car to a tire shop. They did find a nail (which I could not find). It was also repaired at no charge.

Don Nguyen · 12-22-2007, 01:43 PM

Could be coming from the valve stem.

-Don

Jaws · 12-22-2007, 03:22 PM

use a spray bottle filled with a mix of water and dish detergent. Spray it on the valve stem and around the bead. The leak will blow bubbles.

gobo335i · 12-22-2007, 03:59 PM

i got 5 on it being the valve stem. happens often.

Don Nguyen · 12-22-2007, 04:06 PM

Quote:

Originally Posted by gobo335i

i got 5 on it being the valve stem. happens often.

Yea, esp if it isn't an obvious nail in the tire, this is a big possibility of it being this.

Since people usually have valve stem caps, it isn't always obvious that it is leaking from there.

-Don

BMW MotorSport · 12-23-2007, 05:00 AM

Quote:

Originally Posted by zenmaster

I had a similar leak problem, but with my RFT (1-2psi every 12 hours) . I finally took the car to a tire shop. They did find a nail (which I could not find). It was also repaired at no charge.

+1 go to a tire shop.

undecided · 12-23-2007, 09:22 AM

The car is only 5 weeks old. The tire change was 3 weeks ago.

undecided · 12-23-2007, 04:35 PM

I read somewhere that if you pump it more it will make the bead seal better.

Grumpa72 · 12-25-2007, 05:50 AM

I have had similar issues in the past that could only be found when the tire was off the rim. Take it to a tire shop and stop guessing.

undecided · 01-06-2008, 11:28 AM

When I got home I sprayed my kids' bubble stuff on the tire/rim. Immediately, I saw little tiny bubbles forming in one tiny spot between the bead and the rim. Hmm.....

undecided · 01-20-2008, 03:39 PM

So the leak was found by me and it between the tire and the rim and it seemed like a slow leak along a tiny point on the bead. I reinflated to 40 psi. It's been a week and it hasn't dropped at all. Before, it dropped around 1psi per day. What's going on?

12-22-2007, 11:35 AM	#1
undecided Captain 83 Rep 985 Posts Drives: 08 M5 Sapphire Black Join Date: Oct 2005 Location: CT iTrader: (0) Garage List 2008 335xi SOLD!!!! ... [0.00] 2008 M5 [0.00]	Very very slow leak I replaced the RFTs with Goodyear F1 All Seasons 3 weeks ago. 2 days ago one tire developed a 1-2 psi drop every 12 hours. There are no visible nails or screws in it and I don't hear any air leaks. Any ideas on what to do next? Thanks
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12-22-2007, 12:39 PM	#2
zenmaster Brigadier General 1577 Rep 3,888 Posts Drives: '17 M2 Join Date: Mar 2007 Location: Atlanta iTrader: (1)	I had a similar leak problem, but with my RFT (1-2psi every 12 hours) . I finally took the car to a tire shop. They did find a nail (which I could not find). It was also repaired at no charge.
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12-22-2007, 01:43 PM	#3
Don Nguyen Banned 67 Rep 1,334 Posts Drives: '99 M3 Vert, '95 M3 Coupe, 964 Join Date: Apr 2006 Location: Irvine, CA iTrader: (4)	Could be coming from the valve stem. -Don
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12-22-2007, 03:22 PM	#4
Jaws Lieutenant Colonel 45 Rep 1,738 Posts Drives: 2006 325i mt Join Date: Aug 2006 Location: Edmonton iTrader: (0)	use a spray bottle filled with a mix of water and dish detergent. Spray it on the valve stem and around the bead. The leak will blow bubbles. __________________ 2006 325i - Sparkling Graphite 2000 S2000 - New Formula Red 2007 Chev Silverado crew cab Z71
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12-22-2007, 03:59 PM	#5
gobo335i Toy Wrangler 11 Rep 193 Posts Drives: 135i - GoCart on Steroids Join Date: May 2007 Location: Los Angeles, California iTrader: (0)	i got 5 on it being the valve stem. happens often. __________________ Had a 335i. It was a highway missile. Traded to a 135i. It's a go-cart on steroids.
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12-23-2007, 09:22 AM	#8
undecided Captain 83 Rep 985 Posts Drives: 08 M5 Sapphire Black Join Date: Oct 2005 Location: CT iTrader: (0) Garage List 2008 335xi SOLD!!!! ... [0.00] 2008 M5 [0.00]	I will. Are you guys saying the valve stem got damaged? The car is only 5 weeks old. The tire change was 3 weeks ago.
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12-23-2007, 04:35 PM	#9
undecided Captain 83 Rep 985 Posts Drives: 08 M5 Sapphire Black Join Date: Oct 2005 Location: CT iTrader: (0) Garage List 2008 335xi SOLD!!!! ... [0.00] 2008 M5 [0.00]	I pumped the PSI up to 40 and it has not dropped in 24 hours I read somewhere that if you pump it more it will make the bead seal better.
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12-25-2007, 05:50 AM	#10
Grumpa72 Private First Class 1 Rep 151 Posts Drives: 2007 328xi Join Date: Sep 2007 Location: Moon Township, PA iTrader: (0)	I have had similar issues in the past that could only be found when the tire was off the rim. Take it to a tire shop and stop guessing.
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01-06-2008, 11:28 AM	#11
undecided Captain 83 Rep 985 Posts Drives: 08 M5 Sapphire Black Join Date: Oct 2005 Location: CT iTrader: (0) Garage List 2008 335xi SOLD!!!! ... [0.00] 2008 M5 [0.00]	Had the car at the dealer they did not find it. When I got home I sprayed my kids' bubble stuff on the tire/rim. Immediately, I saw little tiny bubbles forming in one tiny spot between the bead and the rim. Hmm.....
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01-20-2008, 03:39 PM	#12
undecided Captain 83 Rep 985 Posts Drives: 08 M5 Sapphire Black Join Date: Oct 2005 Location: CT iTrader: (0) Garage List 2008 335xi SOLD!!!! ... [0.00] 2008 M5 [0.00]	Ok, now it hasn't leaked for a whole week. So the leak was found by me and it between the tire and the rim and it seemed like a slow leak along a tiny point on the bead. I reinflated to 40 psi. It's been a week and it hasn't dropped at all. Before, it dropped around 1psi per day. What's going on?
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