4G5 827 851 B · Drive unit Audi genuine (OEM) part number 4G5 827 851 B, Drive unit. Fitted on (2)DRIVE — pos 15 · PR:4E7 (KAT717.BIN)DRIVE — pos 15 · PR:4E7,4E9 (KAT798.BIN) Open the interactive exploded diagram →