Do not trust these people. Certainly, don't buy a car from them. I did, and now I'm out $3000 in extra repairs.

After my first inquiry about a car listed on their website, the seller emailed me and informed me that the vehicle was not available to test drive because he needed to bring it to a VW dealership to check on a "check engine" light code. The VW dealership had the vehicle for nearly a week. In follow up emails with the seller, he told me that he did not yet have the car back and explained further:
, "...but the scanning at the dealership came up with an "old" code; so I'm going to pick it up tomorrow and drive it around for a couple of days to see if anything reappears. If not, the car is good to go. If this code does reappear, the car will need a switch inside the transmission which might be having an intermittent problem. At that point, we'll replace the switch before you get the car."

I purchased the car on a Friday. On my drive home with the car, the check engine light came on again. I emailed the seller, he assured me that any repairs should be covered under the warranty that he sold me with the car.

Several days later, I took the car to my local VW dealer. They found a critical transmission problem was the cause of the check engine light coming on. They advised me that it was not safe to drive the vehicle in its current state and the service would run about $2300. They also found a crack in the oil separator, which cost an additional $430 to repair.

I emailed the seller about the issues. He replied with the appropriate "legal" response of "I'm so sorry to hear that the Jetta has developed a problem..." as if the problem developed after I had driven the car away. A transmission problem doesn't just happen within a few minutes or hours of a car being driven away. The VW dealer that the seller had taken the car to indicated that the car had a transmission problem, though they incorrectly identified it as a switch. They cleared the check engine light error code and did nothing to repair it.
The seller admitted that the check engine light might reappear at some point.

Despite assurances that any potential repairs associated with this check engine light would be covered by the warranty, or that the seller would make repairs if the light reappeared before I picked the car up, he has denied any liability on his part for these repairs. I have not asked him to fully cover the repairs, but have asked several times for some sort of compensation to help cover these unexpected costs. I have not received any further correspondence from the seller.