Type Expansion Valve, air conditioning. AUDI A4 B6 (8E2) S4 quattro Saloon Petrol 03/2003 12/2004 AWD 40 344 253. AUDI A4 B6 Avant (8E5) S4 quattro Estate Petrol 03/2003 12/2004 AWD 40 344 253. AUDI A4 B6 Convertible (8H7) 1.8 T quattro Convertible Petrol 05/2003 12/2005 AWD 20 163 120.