Aintier Air Sensor Mass Air Flow Sensor MAF Replacement Fit for 19941998 BMW 540I 19931998 BMW 740I 19931998 BMW 740IL 19941997 BMW 840CI 0280217800A 13621702078A

FIT FOR THE FOLLOWING VEHICLE: 1994-1998 BMW 540I 1993-1998 BMW 740I 1993-1998 BMW 740IL 1994-1997 BMW 840CI WHY CHOOSE THE Aintier MASS AIR FLOW SENSOR MAF: With better performance and more affordable prices, Very small intake resistance, fast response, accurate measurement, mass flow detection, without compensation of intake temperature and atmospheric pressure. Very easy to install without using troublesome tools. MAINTENANCE POINTS:(Hot wire and hot film for cleaning dirt) The method to check whether the hotline has self-cleaning ability is to remove the air filter and inspect the hotline from the intake port of the air flow sensor. If the hot line does not emit a reddish glow for about one second after the engine is out of service for 5 seconds, the self-cleaning ability of the hotline has been lost. After the hot wire (hot film) is polluted, it can be in the state of hot engine and idle speed. Remove the filter screen of the air filter and use the vaporizer cleaner to spray the hot wire or hot film directly to remove the carbon deposits adhering to it. Package Including 1x Mass Air Flow Sensor/Meter