The failure rate, based upon statistics obtained by the plaintiffs in the class-action suit, was much less than 1% for cars with a dual-row IMS bearing and 8-10% for those with the single-row bearing. It should be noted that this is an underestimate as it is based upon failures reported to Porsche (either because the car was brought into a dealership after failure, or because after diagnosis a claim for warranty/extended warranty/post warranty coverage was made to Porsche. It stands to reason that certain people who suffered a failure after the expiry of the warranty didn't even bother to contact Porsche and hence would not be included in the failure rate percentages.
Brad
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