One thing I learned today: when you have a lift kit, your stock vehicle jack is close to the end of it's travel if you don't have a lift kit for your jack!
For me, a piece of 2x4 will probably work.
I didn't have a flat; I just wanted to learn the VW way of doing it, learning in my garage as opposed to the highway.
Unfortunately, I damaged the underside of the car in the process. I put the jack under the left rear door and lifted it up. Then I realized I hadn't broken the torque on the studs, so I lowered it back down. All ok so far.
Two of the studs must have been put on at oh, 200 ft-lbs I'd guess, so I had to set the parking brake. I then freed the studs, and started to jack it up, forgetting to look at the jack again to see if it's still in the steel edge under the car. (It was, but barely, as I would later find out.)
The car came down on the jack after the holder slipped out of the steel edge.
As a reward, I now have some 1/4" tears in the plastisol where the car hit the jack. Dented the metal a bit too. With the help of a bottle jack from the van, I was able to raise the car enough to pull the jack out.