Bosch 0 280 218 449 Hot Film Air Mass Meter MAF Sensor - 0 280 218 449

The Bosch 0 280 218 449 is a hot film air mass meter (MAF sensor) designed to provide precise measurement of intake air mass for optimal engine performance and fuel efficiency. As a leading original equipment manufacturer, Bosch engineered this sensor using advanced hot film technology to deliver accurate readings to the engine control unit for proper air-fuel mixture management.

Key Features:

• Hot film sensing technology measures actual air mass flow with high precision
• Factory-calibrated sensor and housing ensure accurate readings and optimal engine performance
• Patented design increases robustness against water and particulate damage
• Reduces sensor drift for consistent performance throughout service life
• 100% new construction (not remanufactured) for maximum reliability
• Direct replacement for original equipment with OE-identical connector ports

This mass air flow sensor works by measuring air flowing over a heated membrane, calculating temperature differences between defined measurement fields. The integrated electronic module processes this data and transmits precise air mass readings to the ECU, enabling efficient fuel combustion and reducing harmful emissions. Proper MAF sensor function is critical for maintaining smooth idle, fuel economy, and overall engine performance.