The original country of air flow meter come from Germany, the price is reasonable , and the quality is first--class. The OEM NO. of air flow meter is 077 133 471J Its BOSCH NO. is 0 280 218 069 It is appicable to : AUDI A6(4B,C5)4.2quattro AUDI A6(4B,C5)S6 quattro AUDI A6(4F2)4.2 quattro AUDI A6(4F2)4.2 FSI quattro AUDI A6 Avant (4B,C5)4.2 quattro AUDI A6 Avant (4B,C5)S6 quattro sell air flow ...