There are a number of companies in the world that address the concerns of their customers over their product or parts of it by extending the warranty on it. It seems that German luxury sports car maker Porsche is one of these companies, based from its recent warranty actions regarding the first version of the seventh-generation Porsche 911 GT3 (Porsche 991.1 GT3).
The concern is with regards to the fire risk related to a metallurgical flaw close to the finger follower of the 991.1 GT3’s 3.8-liter direct fuel injection flat-six engine. In 2014, Porsche stopped the sale and recalled the first 785 units of the 991.1 GT3 after determining that its engine could fail and result in a fire. Following probes, Porsche determined that there was a defect (inclusion) close to the surface of the finger follower -- an inclusion to the material suspected to be the cause of the increased wear of this engine part.
Porsche has also determined that other factors – secondary ones – could also result to excessive wear of the finger follower like individual driving patterns, engine temperature, oil quality, oil viscosity and parts tolerances.
However, the German sports car maker noted that most finger followers do not have metallurgy defects, adding that these parts aren’t even close enough to the surface of the finger follower to cause excessive wear. According to Porsche, this is why majority of the 991.1 GT3 examples don’t have this issue and it is high unlikely that that these units would experience this problem. In addition, Porsche has developed new finger followers and camshafts, using a revised manufacturing process and specs.
But of course, owners of the Porsche aren’t fully informed of the entire story behind the finger follower issue. This is why a group of Porsche 991.1 GT3 customers known as the 991.1 GT3 Concerned Owners Group (COG) sought more details about the issue from Porsche itself. COG representatives Ed Jenkins, Sean Groer, Carmen DeVito, Dave Lodigensky and Rob Carr then met with representatives from Porsche Cars North America (PCNA) and Porsche AG on August 3, 2017 at Porsche Headquarters in Atlanta, Georgia.
During the meeting, Porsche representatives fully informed COG representatives about the investigations made, its results and the steps the carmaker has taken to resolve the issue. The carmaker also told COG representatives that engines in the 991.1 GT3 RS and 911R -- despite having similar architecture – aren’t affected by the issue simply because of the several differences with the 991.1 GT3.
Not only that, Porsche also extended the warranty on the engine of all 991.1 GT3 examples in all markets, providing coverage for 10 years from the original in-service date, or 120,000 total vehicle miles, whichever comes first. However, the base bumper-to-bumper warranty remains at four years or 50,000 miles for the United States. Likewise, the warranty extension could be fully transferred to any future owner. The warranty also covers the replacement of a defective engine with a new one with the latest parts.