Description
This air mass sensor is a genuine Siemens VDO unit for Mercedes A-Class W169 and B-Class W245 models. It carries primary OEM number A0000942948 and secondary reference 5WK97003. Designed as an original intake measurement component, it is used to monitor the volume of air entering the engine so the management system can calculate fuel delivery accurately.
Its job is to measure incoming air mass in real time and send that data to the engine control system. Accurate airflow readings are essential for clean combustion, stable idle, smooth acceleration and efficient fuel metering. A properly working sensor helps the engine respond correctly under load and supports consistent drivability across normal road use.
Common signs of a faulty unit include hesitation on acceleration, rough idle, reduced power, increased fuel consumption, smoky exhaust, uneven running or an engine warning light. On some vehicles, a failing sensor can also cause poor throttle response or limp-home behavior because the engine management system is no longer receiving reliable airflow data.
This is a used original part, removed from a vehicle and tested before sale. Match A0000942948 and 5WK97003 with your existing unit before ordering. Professional installation is recommended, and calibration or adaptation may be required depending on vehicle configuration and diagnostic procedure.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
