Run Flat Repair
Discussion
smashy said:
REALIST123 said:
End of last year sold the wife's 2008 Z4. Just turned 1 year, 12K in my 530d.
No punctures in either car.
Your just part of the averages .. you were lucky. No punctures in either car.
Edited by anonymous-user on Thursday 23 April 15:34
Come to think of it the 320 I ran between 2005 and 2008 was just the same, although it did get through the tyres very quickly back then.
The guy I spoke to said they used to use a vulcanising plug and now they use a vulcanising glue. So far it is holding pressure, time will tell but worth a try to avoid spending out on a new run flat. Given they do a serious amount of business from there and it was clearly a high performance tyre I doubt they would be selling a fix/ product that does not work. I was quite happy to pay for whatever was needed and that was their solution for my pinhole puncture.
shakindog said:
Are you sure it's been repaired properly.
I only ask as to the best of my knowledge a tyre has to be removed to apply the pull through mushroom patch from the inside.
You are right. The British Standard defines a permanent repair and to comply the tyre has to be removed for inspection and the injury must be sealed and the injury channel filled. That can be done with a mushroom plug or a patch and filler.I only ask as to the best of my knowledge a tyre has to be removed to apply the pull through mushroom patch from the inside.
If the tyre hasn't run significantly under inflated, if the injury is close to the centre of the tread and whatever caused the injury has been found and internal damage isn't likely, then you'll get away with it.
Even so, I wouldn't fancy even such a minor injury being 'repaired' with only vulcanising solution. One would expect at least some 'sticky string' in there.
Tyre trade is massively unregulated and the repair the op has had done is not illegal. As there only guidelines not laws in place to regulate the industry mostly.
If it has been stung or a butterfly used and pushed through from the outside it would be in my eyes a temporary repair. Enabling the car to get to a garage or place to have a permanent repair or mushroom repair carried out after the tyre has been removed and inspected on the inside for other damage.
Most of the major tyre manufacturers do not recommend the repair of runflat tyre. That is not to say they can't be repaired or shouldn't be repaired it's just not recommended.
As you never know how far or fast it has been driven on and due to the construction of runflat tyres any other damage may not be obvious.
I'm not trying to cause offence to the op as he seems pretty clued up.
It's a long running debate within the industry repair or not of the runflat tyre.
shakindog said:
Tyre trade is massively unregulated and the repair the op has had done is not illegal. As there only guidelines not laws in place to regulate the industry mostly.
If it has been stung or a butterfly used and pushed through from the outside it would be in my eyes a temporary repair. Enabling the car to get to a garage or place to have a permanent repair or mushroom repair carried out after the tyre has been removed and inspected on the inside for other damage.
Most of the major tyre manufacturers do not recommend the repair of runflat tyre. That is not to say they can't be repaired or shouldn't be repaired it's just not recommended.
As you never know how far or fast it has been driven on and due to the construction of runflat tyres any other damage may not be obvious.
I'm not trying to cause offence to the op as he seems pretty clued up.
It's a long running debate within the industry repair or not of the runflat tyre.
No offence taken. I was very careful not to drive on it once I knew it was low and it only ever got to 23psi at its lowest. So I was not bothered about the fact that they had not inspected the inside. I agree that in theory they should have looked though but run flats are a pain to get on and off the rim as they are a lot stiffer and given it is hard to find anyone who will even fix one in the first place I was happy to try out this supposed new fix. I will be keeping an eye on the pressure and I also have the advantage of the cars warning system for when I am driving if it suddenly fails. Ultimately it was a tiny pin hole so the worst outcome is I end up with a slow puncture again and I get them to plug it from inside.If it has been stung or a butterfly used and pushed through from the outside it would be in my eyes a temporary repair. Enabling the car to get to a garage or place to have a permanent repair or mushroom repair carried out after the tyre has been removed and inspected on the inside for other damage.
Most of the major tyre manufacturers do not recommend the repair of runflat tyre. That is not to say they can't be repaired or shouldn't be repaired it's just not recommended.
As you never know how far or fast it has been driven on and due to the construction of runflat tyres any other damage may not be obvious.
I'm not trying to cause offence to the op as he seems pretty clued up.
It's a long running debate within the industry repair or not of the runflat tyre.
My 5 series got a puncture , rang round and got a couple of quotes of circa £250 but nobody had the tyre in stock , rang the local BMW garage they had them in stock at £375.
Took it to our local well known national , the valve was leaking , replaced the valve free of charge.
Took £5 worth of biscuits in later on , job done.
Took it to our local well known national , the valve was leaking , replaced the valve free of charge.
Took £5 worth of biscuits in later on , job done.
[quotthough ick_968]
No offence taken. I was very careful not to drive on it once I knew it was low and it only ever got to 23psi at its lowest. So I was not bothered about the fact that they had not inspected the inside. I agree that in theory they should have looked though but run flats are a pain to get on and off the rim as they are a lot stiffer and given it is hard to find anyone who will even fix one in the first place I was happy to try out this supposed new fix. I will be keeping an eye on the pressure and I also have the advantage of the cars warning system for when I am driving if it suddenly fails. Ultimately it was a tiny pin hole so the worst outcome is I end up with a slow puncture again and I get them to plug it from inside.
[/quote]
After being run at 23 psi it's not really been run flat and hat off to you for being intelligent about looking after it and getting it sorted.
A large portion of folk that have runflats fitted know very little about them or cars in general so you have to be careful when taking their word for something.
I've had cases of oh yeah it's a run flat but I've not run it far or fast.
Well ok how come the thread has separated from the sidewalls it takes a fair distance fully deflated or at high speed.
Oh yeah light came on in London and I've been doing 90 till I heard the noise.
Ok I see well your in leeds now so I'd say you've done rather well.
Also biscuits are always the best form of tip and the way to any tyre fitters heart. Not rich tea tho as they aren't really a biscuit.
No offence taken. I was very careful not to drive on it once I knew it was low and it only ever got to 23psi at its lowest. So I was not bothered about the fact that they had not inspected the inside. I agree that in theory they should have looked though but run flats are a pain to get on and off the rim as they are a lot stiffer and given it is hard to find anyone who will even fix one in the first place I was happy to try out this supposed new fix. I will be keeping an eye on the pressure and I also have the advantage of the cars warning system for when I am driving if it suddenly fails. Ultimately it was a tiny pin hole so the worst outcome is I end up with a slow puncture again and I get them to plug it from inside.
[/quote]
After being run at 23 psi it's not really been run flat and hat off to you for being intelligent about looking after it and getting it sorted.
A large portion of folk that have runflats fitted know very little about them or cars in general so you have to be careful when taking their word for something.
I've had cases of oh yeah it's a run flat but I've not run it far or fast.
Well ok how come the thread has separated from the sidewalls it takes a fair distance fully deflated or at high speed.
Oh yeah light came on in London and I've been doing 90 till I heard the noise.
Ok I see well your in leeds now so I'd say you've done rather well.
Also biscuits are always the best form of tip and the way to any tyre fitters heart. Not rich tea tho as they aren't really a biscuit.
shakindog said:
Tyre trade is massively unregulated and the repair the op has had done is not illegal. As there only guidelines not laws in place to regulate the industry mostly.
If it has been stung or a butterfly used and pushed through from the outside it would be in my eyes a temporary repair. Enabling the car to get to a garage or place to have a permanent repair or mushroom repair carried out after the tyre has been removed and inspected on the inside for other damage.
Most of the major tyre manufacturers do not recommend the repair of runflat tyre. That is not to say they can't be repaired or shouldn't be repaired it's just not recommended.
As you never know how far or fast it has been driven on and due to the construction of runflat tyres any other damage may not be obvious.
I'm not trying to cause offence to the op as he seems pretty clued up.
It's a long running debate within the industry repair or not of the runflat tyre.
Several of the major manufacturers DO openly state that RFTs are repairable just like any other tyre. Some don't and others just dither. Unfortunately, in the UK they are represented in the industry by the BTMA who couldn't organise the proverbial piss up but in any case aren't interested in tyres being repaired, just in selling new ones. That of course suits some of the manufacturers. If it has been stung or a butterfly used and pushed through from the outside it would be in my eyes a temporary repair. Enabling the car to get to a garage or place to have a permanent repair or mushroom repair carried out after the tyre has been removed and inspected on the inside for other damage.
Most of the major tyre manufacturers do not recommend the repair of runflat tyre. That is not to say they can't be repaired or shouldn't be repaired it's just not recommended.
As you never know how far or fast it has been driven on and due to the construction of runflat tyres any other damage may not be obvious.
I'm not trying to cause offence to the op as he seems pretty clued up.
It's a long running debate within the industry repair or not of the runflat tyre.
That's the crux, as said earlier all they want is to sell new tyres and whilst people keep buying them, nothing will change. It's been like that for decades, RFT and non RFT alike.
As for not knowing how far the tyre's run etc that's a red herring. A proper inspection will reveal damage, just like it always done. Having said that I was in a meeting, about 8 years ago, with the NTDA, BTMA, some manufactures and representatives from other sectors of the industry. No one denied that these tyres could be repaired but every excuse under the sun was given for why the industry in general fights against it.
It was proposed then that TPM systems be developed to record distance and speed a tyre is run at below, for example, 50% of its normal pressure. I think we can all see how easy that would be.
That meeting also aimed to get a consensus on repair from the manufacturers which was promised for the next meeting. That meeting didn't take place before I left the industry, probably still hasn't and there is still no consensus.
The tyre manufacturers are not interested in their products being repaired. End of story. That's hard for them to reconcile with their 'green' policies but isn't likely to change anytime soon.
shakindog][quotthough ick_968 said:
No offence taken. I was very careful not to drive on it once I knew it was low and it only ever got to 23psi at its lowest. So I was not bothered about the fact that they had not inspected the inside. I agree that in theory they should have looked though but run flats are a pain to get on and off the rim as they are a lot stiffer and given it is hard to find anyone who will even fix one in the first place I was happy to try out this supposed new fix. I will be keeping an eye on the pressure and I also have the advantage of the cars warning system for when I am driving if it suddenly fails. Ultimately it was a tiny pin hole so the worst outcome is I end up with a slow puncture again and I get them to plug it from inside.
After being run at 23 psi it's not really been run flat and hat off to you for being intelligent about looking after it and getting it sorted. A large portion of folk that have runflats fitted know very little about them or cars in general so you have to be careful when taking their word for something.
I've had cases of oh yeah it's a run flat but I've not run it far or fast.
Well ok how come the thread has separated from the sidewalls it takes a fair distance fully deflated or at high speed.
Oh yeah light came on in London and I've been doing 90 till I heard the noise.
Ok I see well your in leeds now so I'd say you've done rather well.
Also biscuits are always the best form of tip and the way to any tyre fitters heart. Not rich tea tho as they aren't really a biscuit.
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