4H1 422 893 BP · Expansion hose Audi genuine (OEM) part number 4H1 422 893 BP, Expansion hose. Fitted on (2)HOSE — pos (9) · PR:1N7 (KAT696.BIN)HOSE — pos (9) · PR:1N3 (KAT696.BIN) Open the interactive exploded diagram →