Loads on them fella, waterpumps leak and as supercharger is ran on magnetic pulley causes it to slip, timing chains, turbo's, waste gate rods rattle, pistons crack, burn oil, modified engine i think from 2010 on, as for dsg, can start to become really jerky can be clutches sometimes or fillings in mechatronics, if you want my advice i work for vw dealer stay away nothin but trouble