Mass air flow sensor (air flow meter) Model: 0 280 217 107 (0280217107) Batch/ID: 3507697 (possible manufacturing batch or internal code) Function - Measures the mass air flow entering the engine and provides a precise signal to the engine control unit for proper air-fuel metering. Why you need it - Restores stable idle and reliable starting - Improves throttle response and smooth acceleration - Supports optimal fuel efficiency and reduced emissions Key attributes - Compatibility: designed for vehicles that use the 0 280 217 107 / 0280217107 MAF sensor family - Size: compact electronic sensor module suitable for automotive installation - Performance: delivers accurate, repeatable air flow data to the ECU How it helps - When installed in a compatible vehicle, it helps maintain correct air flow data, supporting consistent engine operation and better overall efficiency Use scenarios - Replacing a worn MAF sensor in a gasoline car to restore idle and throttle response - Diagnosing engine misfire, hesitation, or reduced power caused by inaccurate air flow readings - Routine maintenance or tune-up to preserve steady fuel economy and emissions performance Compatibility reminder - Verify fitment with your vehicle using the model 0 280 217 107 / 0280217107