MERCEDES W219 W251 320 CD 2007 ENGINE DOUBLE AIR FLOW MASS METER A6420943497. FAST DISPACH THE SAME DAY. Ask for a quote please! The item "MERCEDES W219 W251 320 CD 2007 ENGINE DOUBLE AIR FLOW MASS METER A6420943497" is in sale since Thursday, October 4, 2018.This item is in the category "Vehicle Parts & Accessories\Car Parts\Air Intake & Fuel Delivery\Air Intake & Fuel Sensors". The seller is "usedecu" and is located in Rga, Rga. This item can be shipped worldwide.