I too have a 2005 CDI currently with 7500 miles. I am quite pleased with the vehicle and have had no issues with it to date. I did replace the tires with Nokian WRs for the winter drive here in CT. After learning of the $230 the dealer wants for the 13,000 mile oil change, I decided to do them myself. I bought a Liquivac Top Sucker (oil extractor) for the job. I used an oil extractor on my previous two VW TDIs with good results. Just a bit of advice, the owner's manual makes mention of a fleece oil filter. That is for the gas engines only. Our inline 6 uses a paper element. The only oils I have found meeting the 229.5 spec are the Mobil 1 0w-40 and the Elf Excellium Full Tech 0w-30. The Elf runs about $8.10 per liter and the Mobil 1 I found for $4.95 a quart. Both are rated CF. I wonder if a CH-4 oil like Mobil 1 Truck and SUV wouldn't be better suited to this motor, but I haven't found one which meets 229.5. Soot rules