The Bosch 0280218275 is a Hot Film Air Mass Meter (MAF sensor) engineered to OE specifications. Bosch is the original equipment manufacturer for mass air flow technology on a wide range of vehicles, delivering the precise air measurement data the engine control unit needs to optimize fuel delivery and ignition timing. A failing mass air flow sensor can cause rough idle, increased fuel consumption, elevated harmful emissions, and poor drivability. Replacing it with a direct-fit Bosch OE unit restores factory-level accuracy and engine management performance. Key Features: Hot Film Air Mass Meter technology — uses a heated film element to accurately measure intake air mass across all operating conditions OE-matched calibration — sensor and housing are factory calibrated together for precise readings and optimal engine performance Emission compliance — engineered to meet OEM emission standards straight out of the box Improved fuel efficiency — accurate air mass measurement supports optimal air-fuel ratio and can improve fuel economy Direct OE replacement — designed to match original equipment form, fit, and function for a straightforward installation Sold as a complete unit — includes the sensor and housing pre-calibrated as an assembly Bosch 0280218275 is a genuine Bosch component backed by decades of OE mass air flow sensor manufacturing expertise, making it a trusted replacement for restoring engine efficiency and emissions performance.