We sell OEM air mass sensors, air flow meters, and HFMs (Hot Film Meter) for many BMWs. When the mass air sensor is bad you will notice your engine running out of tune. Your fuel mileage will suffer, throttle response will be poor, and you will notice a lack of power.
There should be a Check Engine Light to alert you that the air sensor is having problems. However, there may not be a fault code for the air meter itself. Often times the code comes up as fuel trim or lean condition. In these cases the air sensor could be just one of a number of potential problems.
We only sell air sensors from Original Equipment Manufacturers like, Bosch, VDO, and Siemens. Please note that HFMs are an electrical part and cannot be returned for refund.
Available for the following BMWs: (click icon to change BMW)
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 sensor is also known as the "540 HFM" that is used in a variety of OBD-1 E36 M3 upgrades.
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
Air Mass Sensors and HFMs
