Thanks MKVDave, I'm looking forward to being payment-free for a while!
I don't have all the exact numbers for you, as they don't normally include prices for warranty work, but I always ask, for my own reference.
Front bumper had to be replaced when I got it. They tried to "deliver" the car with a huge gouge out of said bumper. Probably $1k. Mechatronic replacement was worth about $4k. The steering rack was replaced twice (unnecessarily) to solve a click in the front end, and they're worth $1400 a pop. A strut was replaced chasing the same issue, and I'm going to guess that was $500, labour in. Still have the same click. In-tank fuel pump failed and was replaced, along with some emissions equipment when the evap control system developed a leak. I'm guessing $2k for that? Plus a couple of gaskets swapped out because of oil leaks, and other smaller issues.
A lot of this work should never have happened. Either there was a greater issue like the mechatronic that you'd have hoped they'd have figured out before they shipped so many of them, or things like the steering rack which weren't the problem in the first place.
Still... in the five years I've been paying for it, I've probably gone without it for a couple of months while they "fixed" it. Not impressive. Between that and lackluster dealership experiences, I have to question whether sticking with VAG is a good idea.
Regardless, future repairs will be done elsewhere, so we'll see.
Slothy, you might check the o-rings on your IC pipes. That's a typical point of failure when the boost gets up there. And Tooly, I can't really say that my mods have caused any reliability issues per se... just that it's made dealing with warranty issues more delicate, because you know they'd LOVE to use them as an excuse to avoid covering the work, even when it's not related.