OEM Bosch HFM/Mass Air Sensor - E32, E34, E38, E39 with M60/M62 4.0-liter Engine
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The mass air flow sensor measures the amount of air flow to tell the computer how much fuel to add to the mixture. If the MAF sensor malfunctions, there could be too much or too little fuel added to the mixture. Restore performance and fuel mileage with a high quality Bosch ( #0 280 217 800) replacement. OEM replacement for BMW part # 13621702078 and 13621468625. For vehicles with a production date up to 09/1998. This sensor is also known as the "540 HFM" that is used in a variety of OBD-1 E36 M3 upgrades.
Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.
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Replacement mass air sensor for the M60/M62 engine. The M60 engines have a notorious fault for hesitation and sluggish response. If this is your situation the MAF should be on your list to check. The HFM is easy to replace and could cure a variety of problems.
This replacement HFM fits the following BMWs:
1993-1995 E34 BMW 540i
1997-1998 E39 BMW 540i
1988-1994 E32 BMW 740i 740il
1995-1998 E38 BMW 740i 740il
1990-1999 E31 BMW 840i 840ci
This Part Fits the Following BMWs