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01-30-2011, 07:46 AM | #1 |
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Puncture!
Incredibly, while out at the car touching up yet more stonechips, I've just discovered a bolt stuck in the base of a tyre - see attached pic. Haven't had a puncture in years and 2 weeks after buying my first car with RFTs I get a bolt stuck in one of them.
I know nothing about RFTs. What's the procedure? Will I be able to get it repaired with a plug tomorrow ( Monday) when the garages reopen? Can I drive on it today? Am I likely to be hit with a bill for €300 for a new tyre? If so, can I drive on this until the new one arrives? I started to unscrew this bolt and the air started to come out, so I screwed it back in. Any advice willl be much appreciated. Last edited by Dom; 03-27-2011 at 02:27 PM.. |
01-30-2011, 07:58 AM | #2 |
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Ouch, sorry to hear this. Did kind of chuckle at your air leak / screw back in story, had a situation like that once.
Anyway, looks like you aim well, I believe its okay to patch RFT's as long as they are not near the sidewall.
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01-30-2011, 08:02 AM | #3 |
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I have a bolt in mine as well, BMW dealer said id need a new tire but i found numerous people were able fix it because it was not in or near the sidewall like your puncture. Im on snows now but will get it fixed this spring.
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01-30-2011, 08:22 AM | #4 | |
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Anyway, glad to hear you reckon I'll be able to get it fixed tomorrow. Didn't fancy paying €300 for a new tyre after 1,600 kms. So is it ok to drive on for now? |
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01-30-2011, 08:30 AM | #6 |
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I had a nail in my run flat a few months ago and got a new tire from BMW. They really can not patch many of the punctures in run flats due to the internal constrcution of the tire. Luckly I had bought the rim and tire insurance so it was not cost to me. A new run flat for my 550i would have been $500. Good luck on the bolt..
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01-30-2011, 08:34 AM | #7 |
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You have made me see the funny side - cheers. Believe me I wasn't laughing an hour ago.
So it's ok to repair RFTs as long as it's not the sidewall in whick case I assume you're f**ked. Is that the case? What about my tyre, can I drive on it for today? |
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01-30-2011, 09:51 AM | #9 |
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Perfectly ok to mend a puncture in a run flat as long as it has not been driven on under inflated. Same rules apply to run flats as normal tyres with regards to repairs near the side wall but looking at yours it ok.
If it was me I would not drive on it but in an emergency then yes ok to drive on, just make sure it's properly inflated before you do, as said above if you drive on it when it's flat then it will not be able to be safely repaired. |
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01-30-2011, 10:36 AM | #10 | |
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You say same rules apply to run flats as normal tyres re repairs near sidewall. What are those rules? |
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01-30-2011, 11:57 AM | #11 |
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As a general rule of thumb, I think they can repair a puncture as long as it is more than an 1" from the edge of the tread are of the tyre, this obviously depends on tread pattern and profile of the trye, looking at your picture the screw is far enough away from the radius part of the tread so should be ok, ie they can fit an internal patch without it having to follow the curve of the tyre as it blends into the side wall. Runflats have thicker side walls so obviously this gives slightly less repairable area.
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01-30-2011, 12:09 PM | #12 |
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Dom- The official line is probably still that RFTs shouldn't be repaired but replaced . In the early days of my e60 ownership 2006-10 many garages wouldn't plug RFTs however as they started to understand them better more & more places began to repair RFTs- Regardless of the official line, over a 4 yr period I had my RFTs plugged 8-10 times between the four. Sometimes they took the wheel off and repaired from the inside of the tyre, other times the repaired the tyre while still on the car by screwing a lug into the tyre from the outside. Either way, post repair, the tyre behaved perfectly and OBC was fine after reset.
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01-30-2011, 12:10 PM | #13 |
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You can check if the tyre is repairable using the table attached, dimension is taken from the centre line of the tyre, so for a 225 section tyre you can repair a puncture up to 79.5mm from the centre line.
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01-31-2011, 09:50 AM | #14 |
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Thank you - that was very informative. I got it repaired with a plug this am for €5. He didn't even take the tyre of the car.
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01-31-2011, 12:52 PM | #15 |
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I have on reasonably good authority that this kit works pretty well, even in side wall punctures.
http://www.griotsgarage.com/product/...rrivals&page=1 I guess there are some YouTube clips about it, haven't seen them though.
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