HAUPTZYLINDER Audi RS 6 Avant (C5) Combi 4.2 V8 40V Biturbo (BCY). TypRS 6 Avant (C5) Combi 4.2 V8 40V Biturbo (BCY) (2002, 2003, 2004, 2005). Motortyp4.2 V8 40V (BCY). Beware, that many parts require dealer programming.
eBay