Mass Air Flow Meters
http://www.auto-sensors.co.uk/mass-air-flow-meters-52-c.asp We supply high quality budget priced new replacement spare air flow meter sensors for many Bmw models, all made to O E specifications and come with a 1 year warranty
Air flow mass meters for BMW cars, this sensor is also commonly referred to as air mass meters. They measure the mass of the air flowing into the engine. The air mass information is necessary to calculate and deliver the right amount of fuel to the engine. Usually situated directly after the airbox so that filtered air is measured.