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Problem with Pirelli tyre - Brian 247
Hi,

I thought it important to bring this to owners' attention as I appreciate not many drivers check their tyres thoroughly and to find out if anyone else has experienced this.

We have got a 1.2 G/Punto which has covered about 15,000 miles and both rear tyres although they have plenty of tread left are showing signs that the side walls are collapsing and both front tyres have actually got a lot of wire sticking out through the tread patterns around the entire circumference.

The tyre pressures and condition are checked regularly and have never been run flat or deflated.

The garage have accepted there appears to be a defect in the manufacture of the tyres, possibly a 'bad batch'.

I have never seen this on a tyre with plenty of tread left and I am curious if anyone else has.
Problem with Pirelli tyre - bell boy
i suggest you advise vosa and the tyre manufacturer if you are sure no negligence on your part
it might well be a bad batch and it might well be significant
Problem with Pirelli tyre - Altea Ego
how old is the tyre?
Problem with Pirelli tyre - captain chaos
There is a DOT number on the sidewall which can tell you when your tyre was manufactured
Hope this helps tinyurl.com/clu9sq
Problem with Pirelli tyre - oilrag
It`s not your Lads car again is it Brian?

(referring to your destroyed gearbox threads)

Edited by oilrag on 31/03/2009 at 22:52

Problem with Pirelli tyre - Brian 247
Nice one, but no it's not my lad's car again.

It's a car that has been used by the same instructor since new and regular tyre and safety checks not only carried out but also recorded on forms submitted to us.
Problem with Pirelli tyre - bell boy
instructer?
so its a driving school car then doing emergancy stops every hour
please ignore my earlier post then
Problem with Pirelli tyre - Brian 247
Hi,

Don't know where you get the idea of driving school cars doing emergency stops every hour it may be that a student takes 40+ hours to learn to drive and may do a few emergency stops in that time.

7 years with a driving school, now 38 cars and some doing 25,000 miles and others 60,000 miles a year and this is the first time any of us have seen a tyre like this.

I have personally driven about 25,000 miles a year for last 25 years and have never seen a tyre go this way.

Faulty batch of tyres as car has only done 15,000 miles.

Watch this space for update
Problem with Pirelli tyre - L'escargot
I would have thought the most appropriate company to discuss this with would be Pirelli Tyres Ltd.
www.pirelli.co.uk/web/contactus/CUEntryPoint.do
Problem with Pirelli tyre - captain chaos
It isn't emergency stops that would cause tyre problems. The only problem that would cause would be flat spots, and even then they would have to be prolonged emergency stops. I suspect that clouting kerbs when doing three point turns and mis-judging kerbs when reversing round corners and pulling in to the side of the road has damaged the tyre carcass which would explain collapsing sidewalls and steel cord coming through the treads. The rubber doesn't have anything to support it
Problem with Pirelli tyre - FotheringtonThomas
both rear tyres although they have plenty of tread left are showing signs that the
side walls are collapsing and both front tyres have actually got a lot of wire sticking
out through the tread patterns around the entire circumference.


I've never seen this. The chances of it happening on two tyres on the same car at the same time would seem remote.

Can you post a picture (upload to imageshack or similar)?

What are the "signs that the side walls are collapsing"?

I am surprised, as these are "checked regularly", that damage hasn't been noticed before they got to this stage!