Description Bosch is an OEM supplier to Volkswagen and Audi. VW/Audi part #078133534C . Bosch part 0280160575. 4-bar fuel pressure regulator for select VAG applications. Some software specific 1.8T programs call for this 4-bar fuel pressure regulator. This product fits 2000-2005 Golf/Jetta 1.8T 2004 Golf R32 1992-2007 Audi S4 1996-2005 Audi A4 1998 Passat 1.8T (AEB) 1992-1995 Corrado VR6 1993-2/1996 Passat VR6 1998-2005 Passat V6/W8 1994-1995 Golf/Jetta VR6 2004-2006 Audi TT 3.2L V6.