The VW dealer suggested to my daughter that she needed rear brake pads and the serpentine belt replaced on her 2018 Tiguan, the estimate was a bit over $700 (more than $200 in labor just to replace the $18 belt!). I bought the parts at Rock Auto for $55 and had the work completed by myself in my driveway in an hour. The rear pads still had over 1/4" of friction material left on them and the belt was fine, no cracks or glazing.