Took great care of my Passat. Recommended oil change interval 10k; I changed every 6k. All oil and fluid changes at the dealership. I only did the filters, spark plugs and serpentine belt.
Problems -
Purge valve has to be replaced at 40k (warranty)
Control arms at 45k (warranty) + alignment
Fuel pump at 62k ($1600)
Entire cooling system replacement at 64k ($3100)
I believe hot weather and cheap plastic causing more harm to this car.