Cayman GTS

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Discussion

AndyCGTS

589 posts

203 months

Sunday 9th July 2017
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Jonny08 said:
Interesting, my fronts are in a similar state. I assumed it was just normal aging/deterioration to be honest. Mine are two years old, on 18K miles. Let me know how you get on.
I've only done 11,000 miles in mine thus far, I know I have wheel and tyre insurance. So i'll run it pass them first before going further up the chain.

I'll see how it goes.

AndyCGTS

589 posts

203 months

Sunday 9th July 2017
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bcr5784 said:
I contacted Taylor Samantha, GB [samantha.taylor@pirelli.com]

I have to say mine were different, so I'm not sure you'll get the same response as I did.
Thank you. I'll see how I get on.

JasonSteel

566 posts

96 months

Sunday 9th July 2017
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Jonny08 said:
AndyCGTS said:
Would these be classed as bad as the car is just over 2 years old now?

http://imgur.com/a/G4G9M
http://imgur.com/I3i3Ph5

Did you reach out to the OPC or Pirelli directly?
Interesting, my fronts are in a similar state. I assumed it was just normal aging/deterioration to be honest. Mine are two years old, on 18K miles. Let me know how you get on.
+1

i have cracking on the sidewall too. haven't checked between the treads but will do so.

JasonSteel

566 posts

96 months

Sunday 9th July 2017
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DJMC said:
Don't have time now, but I can give you the Pirelli lady's name etc who sorted my cracked fronts and paid for new Goodyears.

PM me? Back later.
sidewall cracks like AndyCGTS or long cracks like bcr5784?

and Pirelli paid to put Goodyears on your car?

have to say i'm not impressed with the Pirelli N0's - they give no confidence in winter, tyre 'skipping' (or whatever it's called - the scrubbing at full lock) is bad all year as is tyre roar, especially on concrete sections of motorways. apparently Goodyears are much better all round tyres?

bcr5784

7,109 posts

145 months

Sunday 9th July 2017
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JasonSteel said:
have to say i'm not impressed with the Pirelli N0's - they give no confidence in winter, tyre 'skipping' (or whatever it's called - the scrubbing at full lock) is bad all year as is tyre roar, especially on concrete sections of motorways. apparently Goodyears are much better all round tyres?
Don't make the assumption that N0 and N1 Pirellis are at all alike - you wouldn't recognise them as the same tyre. In terms of progressiveness and confidence N1s are much better. Likewise scrub is not an issue at reasonable temperatures with N1s. Roar on concrete surfaces is similar however. Having tried Goodyears (albeit on 18" rather 19" rims on my car) I wouldn't regard them as a better tyre. Better steering feel (good) but more understeer (bad) would be my feeling. Personally hate understeer ...

DJMC

3,438 posts

103 months

Sunday 9th July 2017
quotequote all
JasonSteel said:
sidewall cracks like AndyCGTS or long cracks like bcr5784?

and Pirelli paid to put Goodyears on your car?

have to say i'm not impressed with the Pirelli N0's - they give no confidence in winter, tyre 'skipping' (or whatever it's called - the scrubbing at full lock) is bad all year as is tyre roar, especially on concrete sections of motorways. apparently Goodyears are much better all round tyres?
Samantha Taylor as above. Two fronts dated 4713 and 4913 on a May 2014 981. Complained Feb 16. Cracking to sides of tread, like yours, and in tread grooves. Sam arranged for an engineer to come out and see my retained tyres after being replaced with GY F1 A2s.
He said they were 50% worn after 19k miles (how hard are they!?). Agreed they were faulty.
He offered to replace them with new ones, but I said I preferred the GYs so he asked for the invoice, which I gave him. A few weeks later Pirelli sent a cheque for the two GYs and fitting. Excellent customer service, unlike their tyres!






PhantomPH

4,043 posts

225 months

Monday 10th July 2017
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All this is doing is making me want to inspect my tyres in the hope of getting some nice new ones for free. smile Especially given that to my completely untrained eye, there is nothing really wrong with the above tyre. (Ordinary punter here so....)

Amusement aside, I probably should have them checked as the first owner f my car hardly did any miles and I know that can result in the cracking issue.

NBTBRV8

2,062 posts

208 months

Monday 10th July 2017
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AndyCGTS said:
Would these be classed as bad as the car is just over 2 years old now?

http://imgur.com/a/G4G9M
http://imgur.com/I3i3Ph5

Did you reach out to the OPC or Pirelli directly?
I would say that that is pretty normal. Cracks in the water grooves not though.

DJMC

3,438 posts

103 months

Monday 10th July 2017
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PhantomPH said:
...to my completely untrained eye, there is nothing really wrong with the above tyre. (Ordinary punter here so....)
Before buying the car in Nov'15 with 13k miles I asked Porsche Reading tyre expert if the side cracking was an issue. He said "they all do that" and so I proceeded.

It was the tread cracking which made me think both issues (and OPC Reading) were wrong, to my untrained eye. No tyre I've had previously had shown any type of cracking.

To the trained eye of the Pirelli engineer it was immediately apparent the tyres were faulty: "There's something definitely wrong with the rubber compound."

Jonny08

246 posts

102 months

Monday 10th July 2017
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I've emailed Samantha @ Pirelli just now with some of my pictures which are basically what's been shared above, albeit a tad balder! I'll let you know what I get back.

PhantomPH

4,043 posts

225 months

Monday 10th July 2017
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Is this where we run the risk of everyone speculating for a new set of boots and Pirelli turning everyone away?

One would assume that if this is proving to be a common problem, a group 'claim' could be submitted?

DJMC

3,438 posts

103 months

Monday 10th July 2017
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PhantomPH said:
Is this where we run the risk of everyone speculating for a new set of boots and Pirelli turning everyone away?

One would assume that if this is proving to be a common problem, a group 'claim' could be submitted?
Unless we put Pirelli out of business with all our claims, which is unlikely, I'd expect any manufacturer to replace or refund for a faulty product. Each claim will no doubt be assessed on its own merits.

Those trying it on will be refused but that shouldn't affect those with a genuine gripe.

Malo

152 posts

112 months

Monday 10th July 2017
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Mine are showing the same problem on the front, after about 10k miles. Will bang in an email to pirelli and see where it goes.

JasonSteel

566 posts

96 months

Tuesday 11th July 2017
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bcr5784 said:
Don't make the assumption that N0 and N1 Pirellis are at all alike - you wouldn't recognise them as the same tyre. In terms of progressiveness and confidence N1s are much better. Likewise scrub is not an issue at reasonable temperatures with N1s. Roar on concrete surfaces is similar however. Having tried Goodyears (albeit on 18" rather 19" rims on my car) I wouldn't regard them as a better tyre. Better steering feel (good) but more understeer (bad) would be my feeling. Personally hate understeer ...
thanks - that's good to know.

surprising that Porsche would fit such a poorly performing tyre to new cars.

DJMC said:
He offered to replace them with new ones, but I said I preferred the GYs so he asked for the invoice, which I gave him. A few weeks later Pirelli sent a cheque for the two GYs and fitting. Excellent customer service, unlike their tyres!
thanks for the extra info. this seems a common problem and someone started another thread on it so will be keeping an eye on this.

do you feel that the GYs were an upgrade compared to the Pirellis? is tyre roar and scrubbing improved?

and did you change the rears to match the new fronts or did you run GY fronts and Pirelli rears?

sorry for all the questions smile

nsm3

2,831 posts

196 months

Tuesday 11th July 2017
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Just checked my N0s on 63 plate car. 1 rear and 1 front at c.15k plus 1 front and 1 rear at c.6k, no such cracking visible on any of them.

My car spends most of its time in the garage, so I wonder if the affected cars are kept outdoors and this is a UV deterioration problem?

bcr5784

7,109 posts

145 months

Tuesday 11th July 2017
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nsm3 said:
Just checked my N0s on 63 plate car. 1 rear and 1 front at c.15k plus 1 front and 1 rear at c.6k, no such cracking visible on any of them.

My car spends most of its time in the garage, so I wonder if the affected cars are kept outdoors and this is a UV deterioration problem?
Not sure. Mine is in a carport with a (supposedly) UV filtering polycarbonate roof. So almost certainly subject to more UV than yours, but rarely parked in the open except on holidays.

DJMC

3,438 posts

103 months

Tuesday 11th July 2017
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nsm3 said:
Just checked my N0s on 63 plate car. 1 rear and 1 front at c.15k plus 1 front and 1 rear at c.6k, no such cracking visible on any of them.

My car spends most of its time in the garage, so I wonder if the affected cars are kept outdoors and this is a UV deterioration problem?
The Pirelli engineer said the cracks were a rubber compound problem caused during manufacture. He was specific about this and didn't mention anything about UV. I'd discount the UV theory and work on the basis they weren't made correctly, or with sub-standard materials.

Also, look at the date stamp on each tyre and pass to Pirelli with any complaint. It may or may not be relevant but maybe in the latter part of 2013 (mine 4713 & 4913) they had and issue?

DJMC

3,438 posts

103 months

Tuesday 11th July 2017
quotequote all
JasonSteel said:
thanks for the extra info. this seems a common problem and someone started another thread on it so will be keeping an eye on this.

do you feel that the GYs were an upgrade compared to the Pirellis? is tyre roar and scrubbing improved?

and did you change the rears to match the new fronts or did you run GY fronts and Pirelli rears?

sorry for all the questions smile
I changed all four to GY as the rear P Zeros were worn out at 19k miles. Oponeo were cheapest back then. £626 for all four 20" delivered direct to my local tyre fitter, then £15/tyre to fit.

I fitted GY F1 A2 to my TTS and ran them for 10k miles so knew they were good. After 15k miles on the 981 I'd struggle next change to spend the extra on the supposedly better Michelin PS4S especially as Camskill advise they're getting some poor feedback compared to the MPSS. My 981 is under Porsche warranty to 2019 so I have to keep the "N"mark which MPSS doesn't have in 20".

Tyre roar is going to be an issue with any tyre. It's not set up to be quiet. But scrubbing or tramping at very low speed has almost disappeared, not that it's an issue as it's the norm with the suspension set up.

I wouldn't run GY fronts and Pirelli rears personally, or any non-match front to rear. Especially with worn rears. But take advice from your OPC.

Malo

152 posts

112 months

Tuesday 11th July 2017
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nsm3 said:
Just checked my N0s on 63 plate car. 1 rear and 1 front at c.15k plus 1 front and 1 rear at c.6k, no such cracking visible on any of them.

My car spends most of its time in the garage, so I wonder if the affected cars are kept outdoors and this is a UV deterioration problem?
Mine overnights in the garage, but is used daily, done 10k and has the cracking. Make of that what you will.
I

PhantomPH

4,043 posts

225 months

Tuesday 11th July 2017
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Sorry if this has already been covered, but what kind of life are people seeing from their P-Zeros?

I use my car for commuting and occasional spirited drives, but I suffer terrible tyre paranoia (always have) and I'm stating to wonder if I need new boots in time for winter.