I've been driving used and new VWs exclusively for close to 48 years and the only complaint I ever had was loose shift linkage clamp on an '87 Jetta.  It was two months past warranty, but I only paid for the part (about $5) while VWoC approved  the dealer's labour cost for R&R . The big $ items where to repair damage caused by rats chewing my coolant hoses and to replace a fuel injection pump crippled by contaminated  diesel bought at a rural gas bar.