The Bosch 0280218088 is a genuine OE quality Mass Air Flow (MAF) sensor designed to accurately measure air intake density for optimal engine performance. As an original equipment global leader in mass air flow technology, this sensor ensures low levels of harmful emissions with up to 20% better fuel efficiency and improved engine performance. Key Features: 100% new sensor—not remanufactured—ensuring highest quality and longest life Sensor and housing are calibrated and sold together, ensuring precise sensor readings and optimal engine performance Patented design increases robustness against water and particulate contamination while reducing sensor drift OE technology provides correct function and calibration to match vehicle requirements, ensuring trouble-free operation and emissions compliance Hot film technology uses a heated wire cooled by incoming air to measure air density for precise fuel delivery calculations Constructed from durable materials to withstand harsh environmental conditions and extreme temperatures This sensor replaces OE numbers 31342362, 31342414, 8627296, 8670115, 8670398, 86703980, and 94706400. Signs of a failed mass airflow sensor may include rough idle, increased fuel consumption, higher emissions, and poor drivability. Simple installation takes only minutes and provides immediate improvement in engine performance and efficiency.