Bosch 0 280 218 409 Hot-Film Mass Air Flow Sensor MAF - 0 280 218 409

The Bosch 0 280 218 409 is a hot-film mass air flow (MAF) sensor designed to provide precise air mass measurements for optimal engine performance and fuel efficiency. This sensor measures the actual air-mass flow entering the engine and transmits real-time data to the ECU, enabling the engine management system to adjust fuel injection for efficient combustion and reduced emissions.

Key Features:

• Hot-film sensing technology with heated sensor membrane for accurate air mass measurement
• Complete sensor unit with housing calibrated together on the production line for precise operation
• Digital signal processing with integrated ASIC for consistent accuracy throughout service life
• 100% new construction (not remanufactured) ensuring highest quality and longest life
• Patented design provides increased robustness against water and particulate damage
• OE-quality sensor delivers up to 20% better fuel efficiency and lower harmful emissions

This Bosch MAF sensor cross-references to BMW part number 13621433567 and Land Rover part number MHK000230. Common symptoms of a failed mass airflow sensor include rough idle, increased fuel consumption, poor drivability, and elevated emissions. Bosch is the original equipment manufacturer for this component and a global leader in mass air flow sensor technology.