1K0 121 157 CQ · Coolant hose Audi genuine (OEM) part number 1K0 121 157 CQ, Coolant hose. Fitted on (3)HOSE — pos 3 (KAT412.BIN)HOSE — pos 3 (KAT638.BIN)HOSE — pos 3 (KAT646.BIN) Open the interactive exploded diagram →