well, if that IS jampoTT's problem, then my hunch was right--as was the comment from N1JEE, who nailed it right on, apparently because he had already experienced this problem! (see posts of 2/18 in his "car not driving right" thread"); just too much of a coincidence that his problem started after a tire replacement!
Eventually we'll see what plays out about this problem, but based on some similar experiences with tires on very sensitive cars (especially a Maserati), I would predict that it is not so much that the tire is "incompatible" with the car as that it doesn't match up with superficially similar but in some way different stock tire on the other side. That was why I suggested to jampoTT in my first post that he try mounting another new tire from the same batch on the opposing wheel. Front to rear match is a non-issue with the R8 anyway, but side to side match of tire characteristics can be an exquisitely sensitive issue in some cars. So much so that one should just automatically make ANY tire replacement in side to side pairs.
This is very interesting, folks... I'm expecting an update from my R8 advocate 'today' (there was nothing new to report yesterday afternoon).
I made a check of the replacement tyre, and saw the tread pattern was identical, and I'm certain it had 'R01' on it.
The interesting question - if my problem IS down to the tyre, then I will be overjoyed. I'll be vindicated that my car is NOT driving normally, and can get back to having a perfect handling car again. I'll also be happy with Audi that it wasn't down to them... but it will beg the question as to who pays for a new tyre? Clearly the one I have recently had fitted (at a cost of £310) would now be useless (well, to me anyway) but I don't much feel like dipping my hand into my pocket to pay for another replacement. When you ask a reputable tyre fitter to supply and fit a tyre for a specific car, you expect them to use their specialist knowledge to provide an exact replacement. I would certainly hold them responsible, but it would certainly be a bit of a consumer 'grey area'...
I gave the tyre details over the phone, and before I'd even finished, the chap knew it was a tyre for an R8 - so they thought they knew what they were providing...
I won't jump the gun on this one, since I haven't heard anything relating to my car yet, and this may still be a red herring. They may have fitted an exact match to my car, and Audi UK may have been dealing with someone else's car. I can't tell from those photos whether its mine or not
But like I said... finger's crossed, and I hope the photos above are taken from my car.
As per the photo in the advisory, what wear rating number is stamped on your new tire? Is it the "220" of the others or the "160" of the imposter? Assuming that the above Audi bulletin is not a counterfeit spoof, then you will have your answer, handed to you by Audi. (I just realized, I may have missed something? Is your car perhaps not presently back in your hands? If so, then I realize why you haven't checked that number.)
As far as the issue of whether or not that is your tire in the picture, note that N1JEE, in an earlier post to your original complaint, reported exactly this experience, apparently with an R8 of his own (experience if not ownership), so your AudiUK bulletin may be responding to an earlier experience with this problem.
As far as who pays if it's the wrong tire, the tire dealer of course! He needs to provide you with the CORRECT,MATCHING tire for your car. It's his job to know the proper fitment of what he sells and, if as likely, Pirelli has been slow in getting out to their stockists that Audi R8's need pay attention to this point, then Pirelli should pick up the cost for the dealer.
You can be sure that, at some level, the Pirelli organization knows exactly what tire they sold to Audi to fit on the R8 and, probably, why this particular characteristic (whatever it is) is an issue for this car.
Just like to clarify one point and confirm that the bulletin was given to me by someone high up in Audi UK who deals with R8 technical issues.
It is not a spoof. It is from someone I have met, who I know and trust. The bulletin was issued 2 days ago.
I do not know if it is Jampott's car in the photo, or simply the nearest R8 they had to hand. It is irrrelevent anyway. The photos are designed simply to show everybody the correct tyre designation (i.e. what to look for).
I don't think Jampott has his car back yet, so he cannot check......
I hope you could tell from the tenor of my comments that I was indeed banking on that bulletin being valid, since it confirms the suspicion I have been fostering on this thread from the outset. I certainly wasn't dreaming of calling your credibility into question for posting it. I only meant to say that its being a hoax was the only likely alternative to it being the sought after answer to this whole mystery.
My idea about tires was only a guess from some other experiences I've had with other cars, but the really interesting thing is that someone (N1JEE) chimed in early on with a similar experience and what proved to be the answer. Which shows that these forums where the experiences of many are pooled are really useful devices!
Not much to say, yet... I spoke to the R8 advocate last night (7:30ish!) and Audi are going to be testing again today.
They are focusing in on tyres being the issue, but the obvious answer (that my replacement tyre was of the incorrect type) was not mentioned - and that would surely have been the easiest thing to say, since it would be the easiest thing to check for, and wouldn't need them to 'test' anything today.
So... I still can't say for sure what the problem is, but Audi's gut feeling is that tyres are the root cause. Somehow.
But if it isn't the replacement tyre causing the problem...? I'll keep you informed.
Hopefully the fronts are OK for a bit, its the rears I'm more concerned about.
To be honest, I don't know what to expect from this at the moment. I'll have a clearer opinion when I know what the problem is.
It is 2 weeks since I advised Audi of the problem, 13 days since I demonstrated it to a head tech, and 10 days since they took my car.
I gave them, up front, all the information I could reasonably be expected to know - including the background (starting to feel it before I noticed a puncture, then exactly the same sensation even after replacing the tyre) and took the car on an 80 mile roundtrip to demonstrate the problem to the head tech at my supplying dealership.
If it turns out to be something highly unusual and virtually undiagnosable, then I'm happy to cut them some slack... but I suggested a full 8 days ago that they put the wheels from another R8 on and see if the problem went away, and only today are they getting round to doing that. If there's any hint that they've wrung this problem out for too long, then I think they'll owe me a little bit more than a fixed car...
Just as I'd suspected on Thursday night, the problem isn't a rogue replacement tyre. My OTHER rear tyre is 'deformed'.
Not badly, but enough to throw the handling it seems... so one thing is for sure, this car is very very tyre-sensitive.
Now I need to find out what Audi do next. For me, it clearly isn't acceptable for a 1200 mile tyre to be causing issues, unless they can prove beyond any doubt that it is down to it being damaged by something very out of the ordinary.
From what has been said to me so far, they THINK it has sat on a stone for long enough for it to presumably 'dent' the tyre in some way.
I'm sorry, but they're a full month early if they want me to swallow that explanation, and consider it normal behaviour.