FUEL RAIL PRESSURE RELIEF VALVE FOR AUDI A4 A5 A6 Q5 Q7 VW POLO TOUAREG 3.0 TDI. AUDI A4 B7 (8EC) 2.7 TDI 2006-2008 BPP 2698 132 Saloon. AUDI A4 B7 (8EC) 2.7 TDI 2005-2008 BSG 2698 120 Saloon. AUDI A4 B7 (8EC) 3.0 TDI quattro 2004-2008 BKN 2967 150 Saloon.