Mass Air Flow meter sensor A6510900148 for MERCEDES BENZ W204 W212 X204. Replaces OE #s (check original or send us your VIN #).Our MAF / AFM Sensors are premium quality OE standard replacement parts. We keep a huge range to cover most Australian and New Zealand vehicles. Our sensors are made to suit the specific vehicle they are listed for to the manufactures specs. Many of our listings also have the option of a premium express service.