Type Injector Nozzle, expansion valve. AUDI A6 C6 (4F2) 2.0 TDI Saloon Diesel 09/2005 06/2006 FWD 16 121 89. AUDI A6 C6 Avant (4F5) 2.0 TDI Estate Diesel 09/2005 06/2006 FWD 16 121 89. AUDI A6 C6 Avant (4F5) 3.2 FSI quattro Estate Petrol 03/2005 10/2008 AWD 24 255 188.