The factory suction pump is prone to clogs after years of abuse and thousands of miles driven. This can lead to unwanted pressure build-up in your crankcase, and cause oil leaks or vacuum lines and seals to blow out. Show your 1.8T some love and replace the suction pump back to it's factory functionality.
Suction Pump (058133753D)
Part Number Interchange
Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.