adapter opens a valve when being screwed into oil filter housing and enables controlled release of oil from the housing; then housing can be disassembled without any uncontrolled leaking of oil
avoids customer claims against oil traces and stains in engine
suitable for many vehicles from Audi, VW, Seat and Skoda
for engine codes AXW, BLX, BLR, BLY, BVX, BVY, BVZ