Dear David McNett,
As promised in my last letter to you, we remain committed to keeping you updated on the status of the Environmental Protection Agency Notice of Violation we received affecting your Porsche Cayenne Diesel vehicle.
Both we and our engine supplier continue cooperating with all regulatory authorities to identify the changes that will be required in order to re-certify the 3.0-liter V6 diesel engine. Therefore, we would only be speculating if we tried to comment about how any such changes might affect the performance of your Porsche Cayenne Diesel vehicle, if at all. We can only hope you will accept our assurance that, as soon as we know, we will inform you.
As a sign of our respect for you as a Porsche customer, and our appreciation for your patience and loyalty while we clarify the issues and gather all the facts, we hope you will accept a 2-year Porsche Approved Limited Warranty that will extend the warranty coverage for your Cayenne Diesel up to 6 years or 100,000 miles from its original in-service date, whichever occurs first. Your Porsche Cayenne Diesel remains safe and roadworthy, and we hope this longer limited warranty coverage will allow you to continue to drive your Porsche with great confidence. You can find all the details about the Porsche Approved Limited Warranty at
This warranty will automatically be added to the records concerning your Porsche Cayenne Diesel vehicle without any further action needed on your part, and is also fully transferable to any future owner of your car. You may be assured that we are offering this without any prejudice to any future rights you may have or may wish to exercise as a result of these unfortunate matters. We mean only to thank you for your loyalty to Porsche and to recognize that these investigations have caused you concern, for which we apologize.
Please allow me to reiterate that we appreciate your business and your loyalty. As this situation unfolds, we hope we may ask you to allow us the necessary time to ensure we make this right for you. We are committed to doing just that.
Very truly yours,
President and Chief Executive Officer
Porsche Cars North America, Inc.