2Q0 121 109 · Coolant hose Audi genuine (OEM) part number 2Q0 121 109, Coolant hose. Fitted on (3)HOSE — pos 10 (KAT592.BIN)HOSE — pos 10 (KAT596.BIN)HOSE — pos 10 (KAT596.BIN) Open the interactive exploded diagram →