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Discuss problems you have had or are having with your Z4
Scooba_Steve
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Post by Scooba_Steve » Sun Aug 06, 2017 10:57 am

Nictrix wrote: Sun Aug 06, 2017 10:28 am I would be tempted to unscrew that out to see if it has actually punctured the tyre.
I have done this a few times after finding a screw in a tyre and decided to take it out to find it was a really short screw and had not gone all the way through.
I thought about this... then thought about it going completely flat :lol:

Tyre is defo losing pressure though, 1psi a day ish...
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Post by Nictrix » Sun Aug 06, 2017 12:59 pm

Scooba_Steve wrote: Sun Aug 06, 2017 10:57 am
Nictrix wrote: Sun Aug 06, 2017 10:28 am I would be tempted to unscrew that out to see if it has actually punctured the tyre.
I have done this a few times after finding a screw in a tyre and decided to take it out to find it was a really short screw and had not gone all the way through.
I thought about this... then thought about it going completely flat :lol:

Tyre is defo losing pressure though, 1psi a day ish...
Thats fair enough if it is loosing air. Any time I have done it the tyre has not really lost any air and as I turned the screw I would check with soapy water for bubbles.
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Post by mj2k » Mon Aug 07, 2017 8:23 pm

Feel for you, had that 3 times in 4 weeks before, luckily on a company car. Remain convinced someone thought they owned that piece of public highway (not infront of their house, or anything uber petty), and did it over night.

Currently the M has a really really slow flat, need to get it sorted, can't see any damage so no idea if anything can actually be done.
2016 F82 M4 Comp Pack, Mineral White
2016 F56 JCW - GONE
2007 ZMR, Titanium Silver for sunny days
2012 N18 JCW - GONE
2007 3.0si Z4C, Stratus Grey, Amarone Leather - GONE
2013 520d F10 - GONE
2007 3.0si Z4C, Stratus Grey, Amarone Leather - GONE

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Post by Scooba_Steve » Mon Aug 07, 2017 8:49 pm

Nictrix wrote: Sun Aug 06, 2017 12:59 pm
Scooba_Steve wrote: Sun Aug 06, 2017 10:57 am
Nictrix wrote: Sun Aug 06, 2017 10:28 am I would be tempted to unscrew that out to see if it has actually punctured the tyre.
I have done this a few times after finding a screw in a tyre and decided to take it out to find it was a really short screw and had not gone all the way through.
I thought about this... then thought about it going completely flat :lol:

Tyre is defo losing pressure though, 1psi a day ish...
Thats fair enough if it is loosing air. Any time I have done it the tyre has not really lost any air and as I turned the screw I would check with soapy water for bubbles.
Gave the screw a wiggle today and it hissed!
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Post by Scooba_Steve » Mon Aug 07, 2017 8:50 pm

mj2k wrote: Mon Aug 07, 2017 8:23 pm Feel for you, had that 3 times in 4 weeks before, luckily on a company car. Remain convinced someone thought they owned that piece of public highway (not infront of their house, or anything uber petty), and did it over night.

Currently the M has a really really slow flat, need to get it sorted, can't see any damage so no idea if anything can actually be done.
Same for one rear on mine, tyre shop cleaned up the rim and checked for cracks before redoing the bead and putting the tyre back on. Trouble is, now it's losing air faster than it was before...
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Post by mj2k » Mon Aug 07, 2017 8:54 pm

Scooba_Steve wrote: Mon Aug 07, 2017 8:50 pm
mj2k wrote: Mon Aug 07, 2017 8:23 pm Feel for you, had that 3 times in 4 weeks before, luckily on a company car. Remain convinced someone thought they owned that piece of public highway (not infront of their house, or anything uber petty), and did it over night.

Currently the M has a really really slow flat, need to get it sorted, can't see any damage so no idea if anything can actually be done.
Same for one rear on mine, tyre shop cleaned up the rim and checked for cracks before redoing the bead and putting the tyre back on. Trouble is, now it's losing air faster than it was before...
Arse, was hoping to read it fixed it! It's so slow I can live with it based on infrequent use of the car, but annoying.

Was tempted to change all the rubber as bought the car on 7k and it's now 24k, but convinced its the original rubber. Need to find the right tyre though given the Michelin changes, but guessing I'd rather lose the last couple mm of tread vs a blow out due to age of tyre.
2016 F82 M4 Comp Pack, Mineral White
2016 F56 JCW - GONE
2007 ZMR, Titanium Silver for sunny days
2012 N18 JCW - GONE
2007 3.0si Z4C, Stratus Grey, Amarone Leather - GONE
2013 520d F10 - GONE
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Post by Ducklakeview » Mon Aug 07, 2017 8:57 pm

cj10jeeper wrote: Sat Aug 05, 2017 10:19 pm Runflats don't just blow up after 50 miles. I have no doubt you could travel 100 miles on it or more with care. Think cold wet night, female, alone, etc. Or dangerous motorway hard shoulder. It'll get you to safety and out of danger.
Second big factor is packaging - there just isn't the need or space to carry a big tyre around in a modern car
I dont like runflats but understand the need
I'll second that - About 6 years ago, when I used to hire cars out tas taxis, I had a pair of part worns fitted to the front of one of my Mondeos. Gave it back to the driver that night, the following morning, her rang to say he had a screw in a tyre, but had pulled it out and the tyre had not gone down (although I later found out that the muppet hadn't actually checked the pressure) anyway, two weeks later, I got a phonecall to say he'd had the same tyre "fall to pieces" at low speed - Turns out the garage had fitted a runflat, he'd then driven on it for two weeks, or at least 1500 miles with NO air in it before it fell apart...

Oh happy days - NOT..

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Post by Mr Tidy » Mon Aug 07, 2017 9:42 pm

Mostly convenience - I only had 2 punctures in my 123d quite near home, but both times it was snowing so I was rather glad to have RFTs!

Also useful if the OH uses the car as most wouldn't want to be changing a wheel!

Or they let you can get off a motorway - I wouldn't want to change an offside wheel on the hard shoulder! :thumbsdown:

Anyway my Z4 owner's handbook says 150 miles with a light load (1 occupant and no luggage), 90 miles with medium load (1 occupant and a full boot or 2 occupants and no luggage), dropping to 30 miles with 2 occupants and a full boot.

Interesting point Nictrix makes - OP, did the tyre pressure warning light come on? If not, you may still have an air-tight tyre. And even if not I'd be happy with a repair on that - I did 11K miles on a repaired Pirelli RFT on my 123d with no problems.

But having said all that I'm planning on going non-RFT on my Z4 next time I buy tyres (just bought a 17 inch space-saver). 8)
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Post by G600 » Mon Aug 07, 2017 9:48 pm

mj2k wrote: Mon Aug 07, 2017 8:54 pm Was tempted to change all the rubber as bought the car on 7k and it's now 24k, but convinced its the original rubber. Need to find the right tyre though given the Michelin changes, but guessing I'd rather lose the last couple mm of tread vs a blow out due to age of tyre.
If you're not sure how old the tyres are they should have a date code
https://www.tirebuyer.com/education/how ... your-tires
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Post by mj2k » Mon Aug 07, 2017 9:50 pm

G600 wrote: Mon Aug 07, 2017 9:48 pm
mj2k wrote: Mon Aug 07, 2017 8:54 pm Was tempted to change all the rubber as bought the car on 7k and it's now 24k, but convinced its the original rubber. Need to find the right tyre though given the Michelin changes, but guessing I'd rather lose the last couple mm of tread vs a blow out due to age of tyre.
If you're not sure how old the tyres are they should have a date code
https://www.tirebuyer.com/education/how ... your-tires
No idea that existed at all, and petrified!

Away on business, so will look at the weekend & update. :!:
2016 F82 M4 Comp Pack, Mineral White
2016 F56 JCW - GONE
2007 ZMR, Titanium Silver for sunny days
2012 N18 JCW - GONE
2007 3.0si Z4C, Stratus Grey, Amarone Leather - GONE
2013 520d F10 - GONE
2007 3.0si Z4C, Stratus Grey, Amarone Leather - GONE

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Post by GAZA62 » Sat Aug 12, 2017 6:40 pm

Would replace as you said a blow out made a real mess of a mate and his TVR
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Post by EssexZed » Sat Aug 12, 2017 9:42 pm

Here's a source of useful information on runflats and repair advice regarding the different makes http://www.etyres.co.uk/run-flat-tyres/ ... lat-tyres/

Only a few weeks ago I found a nail in a rear tyre on my ZED - it was just off the centre line of the tyre. Wasn't losing any air and could have been there a while. It was a Bridgestone with less than 5000 miles of use :-x Anyhow, I was pleased to find a local tyre service that could repair it - obviously a massive saving on cost of replacing the tyre - phew!

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Post by DMC63 » Sat Aug 12, 2017 9:59 pm

I had a similar puncture with a screw and a washer. I could feel it before the flat tyre gauge lit up. New tyre. There's load more crap on the roads nowadays. skip lorries and builders vans probably increase this kind of stuff.
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