05C 100 031 J · Base engine Audi genuine (OEM) part number 05C 100 031 J, Base engine. Fitted on (2)BASE ENG. — pos 1 · PR:G0K,G1C (KAT592.BIN)BASE ENG. — pos 1 · PR:G0K,G1C (KAT803.BIN) Open the interactive exploded diagram →