057 121 103 E · Coolant hose Audi genuine (OEM) part number 057 121 103 E, Coolant hose. Fitted on (3)HOSE — pos 28 (KAT291.BIN)HOSE — pos 28 (KAT493.BIN)HOSE — pos 28 (KAT635.BIN) Open the interactive exploded diagram →