The Bosch 0280217114 Mass Air Flow (MAF) Sensor is an original equipment quality component that measures the amount of air entering the engine and sends precise data to the engine control unit for optimal fuel delivery and combustion. As a global leader in mass air flow technology, Bosch delivers superior performance with this 100% new sensor designed for reliable operation and emissions compliance. Key Features: Platinum wire sensing element with protective glass film coating for enhanced durability and accurate readings Patented design increases robustness against water and particulate damage while reducing sensor drift and pressure drop Complete sensor and housing unit pre-calibrated together on production line for precise operation right out of the box OE-identical connector ports and attachment points ensure exact fit and trouble-free installation Helps improve fuel efficiency up to 20% while reducing harmful emissions and enhancing engine performance 5-pin connector configuration with black plastic housing This sensor replaces Mercedes-Benz OEM part number 0000940948 and cross-references with Delphi AF10233, Spectra Premium MA108, and Walker Products 245-1112. Signs of a failing mass airflow sensor include rough idle, increased fuel consumption, elevated emissions, and poor drivability. Installing this genuine Bosch MAF sensor restores proper engine management function quickly and reliably.