4G0 121 472 M · Coolant hose Audi genuine (OEM) part number 4G0 121 472 M, Coolant hose. Fitted on (3)HOSE — pos 15 (KAT738.BIN)HOSE — pos 15 (KAT788.BIN)HOSE — pos 15 (KAT798.BIN) Open the interactive exploded diagram →