4M0 121 449 EE · Coolant hose Audi genuine (OEM) part number 4M0 121 449 EE, Coolant hose. Fitted on (3)HOSE — pos 22 (KAT537.BIN)HOSE — pos 22 (KAT538.BIN)HOSE — pos 33 (KAT595.BIN) Open the interactive exploded diagram →