4G0 201 994 AG · Vent hose Audi genuine (OEM) part number 4G0 201 994 AG, Vent hose. Fitted on (2)HOSE — pos (19) · CDNB,CAEB, (KAT717.BIN)HOSE — pos 19 · PR:TV2 (KAT741.BIN) Open the interactive exploded diagram →