1HV 915 748 B · Safety valve Audi genuine (OEM) part number 1HV 915 748 B, Safety valve. Fitted on (3)VALVE — pos 38 (KAT1115.BIN)VALVE — pos 38 (KAT1115.BIN)VALVE — pos 36 (KAT1115.BIN) Open the interactive exploded diagram →