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      05-11-2019, 05:32 PM   #1
DW_x3m40i
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I have Bridgestone run flats and just found a puncture in the middle of one of the tires (not the sidewall) this morning where it deflated to 0 psi. Tire has less than 8k miles and enough tread where BMW service says it is okay for me to replace just one tire rather than all four. I asked if it's okay to repair it and they said RFT needs to be replaced instead of getting repaired when it is punctured.

However, I found mixed responses online on whether it is okay and safe to repair and was actually able to find a mom and pop tire store that would repair it for me.

Anyone else have thoughts on for or against repairing RFT? Seems like if repairing RFT are not recommended then it can get very costly each time you run over a nail - especially if you need to replace all 4 tires.

What I probably should have done was negotiate the tire warranty in given how crappy the roads are in SF or is it crappy tires that we got from BMW. But I guess I will save that for another thread...
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      05-11-2019, 05:37 PM   #2
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As long as the tyre hasn’t been driven on zero or near zero pressure it’s ok to repair.

If it’s been driven on zero pressure then the structural integrity of the side walls has been compromised.
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      05-11-2019, 06:10 PM   #3
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Quote:
Originally Posted by teaston View Post
As long as the tyre hasn't been driven on zero or near zero pressure it's ok to repair.

If it's been driven on zero pressure then the structural integrity of the side walls has been compromised.
I drove it for a few miles looking for tire shops.

Like maybe 2 miles?
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      05-11-2019, 06:11 PM   #4
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Quote:
Originally Posted by DW_x3m40i View Post
Quote:
Originally Posted by teaston View Post
As long as the tyre hasn't been driven on zero or near zero pressure it's ok to repair.

If it's been driven on zero pressure then the structural integrity of the side walls has been compromised.
I drove it for a few miles looking for tire shops.

Like maybe 2 miles?
You'll be fine. I've repaired 2 different tires 3 times over the last 1.5 years.
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      05-11-2019, 06:11 PM   #5
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Quote:
Originally Posted by DW_x3m40i View Post
I drove it for a few miles looking for tire shops.

Like maybe 2 miles?
Not worth risking imo.
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      05-11-2019, 06:24 PM   #6
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I had one repaired. A day later the plug popped. I would replace the one.
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      05-12-2019, 07:35 AM   #7
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I had two rfts repaired in the past but neither had lost any pressure before the repairs. If it driven at all with no pressure then I would replace it (even 2 miles).
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      05-12-2019, 11:42 AM   #8
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A big reason I carry a portable air pump on the vehicle is so that I can prevent the run flats from going flat. I would replace if I ran it flat or under 10-15 psi for more than a mile or so.
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      05-12-2019, 12:38 PM   #9
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Lots of contradicting and misinformation in this thread. Itís a RFT and by design they can be driven for short distances with zero or near zero pressure without internal carcass damage. Regardless, any tire shop you take it to (or dealer) will inspect the tire and decide depending on if there was sidewall damage, the puncture area is outside the patchable limits, etc. Also, itís worth noting that certain MFG with higher speed ratings donít allow patched tires (not the case for OEM X3 tires). Either way, ask your shop to inspect and decide. This coming from somebody who has patched hundreds of tires and worked at two different tires shops. My recommendation, take your shops or dealers advice and go from there.
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      05-12-2019, 02:34 PM   #10
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Quote:
Originally Posted by dereksM3 View Post
Lots of contradicting and misinformation in this thread. It’s a RFT and by design they can be driven for short distances with zero or near zero pressure without internal carcass damage. Regardless, any tire shop you take it to (or dealer) will inspect the tire and decide depending on if there was sidewall damage, the puncture area is outside the patchable limits, etc. Also, it’s worth noting that certain MFG with higher speed ratings don’t allow patched tires (not the case for OEM X3 tires). Either way, ask your shop to inspect and decide. This coming from somebody who has patched hundreds of tires and worked at two different tires shops. My recommendation, take your shops or dealers advice and go from there.
That is absolutely not the case!!

RFT's can be driven up to 50 miles on zero or close to zero pressure, that is because as soon as you start driving on it with no pressure the side walls start to deteriorate.

So yes it 'might' be ok after 2 miles, or even 50 miles, but it might not, and repairing and reusing it could result in it blowing out and totalling your car, and injuring or killing the occupants.
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      05-12-2019, 04:08 PM   #11
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If you drove it while the pressure was still high enough not to trigger the warning in iDrive, then you're probably fine to repair it.

As soon as that pressure warning goes off, if you're still driving it, you're going to have damaged the tyre and it should be replaced.
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      05-12-2019, 10:43 PM   #12
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Quote:
Originally Posted by teaston View Post
That is absolutely not the case!!

RFT's can be driven up to 50 miles on zero or close to zero pressure, that is because as soon as you start driving on it with no pressure the side walls start to deteriorate.

So yes it 'might' be ok after 2 miles, or even 50 miles, but it might not, and repairing and reusing it could result in it blowing out and totalling your car, and injuring or killing the occupants.
How is that not the case, you are basically reiterating what I just said...

Hence the reason why I said: "Regardless, any tire shop you take it to (or dealer) will inspect the tire and decide depending on if there was sidewall damage, the puncture area is outside the patchable limits, etc." It's all circumstantial, but as I stated driving for a short distance on run flats at low pressure they don't start magically disintegrating, I've changed a few of them over the years...

Frankly, it doesn't matter what the OP wants in regards to tire decision - if the tire is damaged or was driven in a manner that might have damaged it a shop WILL NOT reinstall it. Acting like he is the one that will make the decision and be risking others lives is a gross overstatement and just won't happen. ANY credible shop has severe liability to not properly diagnose a tire that has went flat, on any given day that is generally 50% of the service that comes through these shops.
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      05-13-2019, 12:41 AM   #13
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Well I went ahead and got it repaired. Tire shop said the sidewall was fine and that tire was repairable.

Been driving all weekend and it's been all good. Will pick up a pump though just to keep PSI up in case this happens again.

Here's a pic of the patch.
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      05-13-2019, 01:57 AM   #14
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Yeah I had mine patched when a screw went through. I woke up that morning with 13psi in that tire, inflated it and drove to the tire shop. I drove about 2k miles on them afterward before switching out to my current non rf tires. You should be fine.
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      05-13-2019, 07:53 AM   #15
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Quote:
Originally Posted by DW_x3m40i View Post
Well I went ahead and got it repaired. Tire shop said the sidewall was fine and that tire was repairable.

Been driving all weekend and it's been all good. Will pick up a pump though just to keep PSI up in case this happens again.

Here's a pic of the patch.
Quote:
Originally Posted by dereksM3 View Post
Quote:
Originally Posted by teaston View Post
That is absolutely not the case!!

RFT's can be driven up to 50 miles on zero or close to zero pressure, that is because as soon as you start driving on it with no pressure the side walls start to deteriorate.

So yes it 'might' be ok after 2 miles, or even 50 miles, but it might not, and repairing and reusing it could result in it blowing out and totalling your car, and injuring or killing the occupants.
How is that not the case, you are basically reiterating what I just said...

Hence the reason why I said: "Regardless, any tire shop you take it to (or dealer) will inspect the tire and decide depending on if there was sidewall damage, the puncture area is outside the patchable limits, etc." It's all circumstantial, but as I stated driving for a short distance on run flats at low pressure they don't start magically disintegrating, I've changed a few of them over the years...

Frankly, it doesn't matter what the OP wants in regards to tire decision - if the tire is damaged or was driven in a manner that might have damaged it a shop WILL NOT reinstall it. Acting like he is the one that will make the decision and be risking others lives is a gross overstatement and just won't happen. ANY credible shop has severe liability to not properly diagnose a tire that has went flat, on any given day that is generally 50% of the service that comes through these shops.
You can't see the damage, it is inside the structure of the sidewall.
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      05-13-2019, 04:19 PM   #16
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I've driven cars with run flat tires for about 15 years now. You are perfectly fine and should have no issues with that fix. You can choose to be overly cautious, and that will never hurt anything but your wallet, but given my many similar experiences, I would be shocked if you ever have an issue with that fix.
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