Searching, I found this earlier answer that might be of value to you:
DPF Warranty -- Help translate VW's Response
There have been several posts / threads on the warranty coverage of the diesel particuate filter with no conclusive answers that I could find. So, I sent an e-mail to VW and specifically ask "is the diesel particluate filter covered under the Federal Emissions Warranty for 8 years or 80k miles." This is the response I got back from VW.
Quote:
Thank you for your e-mail in regard to the Federal Emission Warranty on your award-winning Jetta TDI. We strive to build safe and reliable cars for the enjoyment of our customers, and I hope you are enjoying the unique driving machine your car was built to be. I understand you are seeking to know if the diesel particulate filter is covered by this warranty, and I appreciate the opportunity to respond.
I realize you looked for this information in the Warranty Booklet for your Jetta, and I am sorry you felt the information was not as specific as you expected. The Federal Emissions Warranty on your car covers the Engine Control Module, On-Board Diagnostics II, and Catalytic Converter for eight years or 80,000 miles, whichever occurs first, for manufacturing shortcomings in materials or workmanship from your in service date of September 30, 2008. The diesel particulate filter is also covered under this warranty. I hope this information was helpful.
As a member of the Volkswagen family, your questions are important to us. If I may be of further assistance regarding this, or any other matter, please don’t hesitate to contact me again by e-mail at www.vw.com or through our Customer CARE Center at (800) 822-8987 begin_of_the_skype_highlighting
(800) 822-8987 FREE end_of_the_skype_highlighting. If I am not available, one of my colleagues will be able to assist you.
Sincerely,
Djennin Casab
Ext. 43340
Customer CARE Advocate
So, what's everyone's opinion on VW's response? Did they really answer the question? They stated that the DPF "is also covered under this warranty" but did not specifically say whether the time frame is for 8/80 or could it be for only 2/24 OR does "also covered under this warranty" imply the 8/80 coverage.
I just sent an email back to VW illiciting a very specific "yes" or "no" response to my question. We'll see what happens. Oh and BTW, my purchase date was October 29, 2008 and not September 30, 2008. At least they got the year correct.