I have an 09 Jetta tdi dsg......Im at 117k and about to do a cross country trip....bought car at 30k...maintenance is consistent (oil, brakes, new tires) Ive been commuting to work the past 6 months and haven't been focused on my car like I should be...long story short, timing belt, not sure when the time to replace would be, getting multiple mileages 80 to 120k..help!