Description
This Bosch air mass sensor is an original Mercedes unit for ML W164, W211 and W221 V8 models. The primary OEM number is A2730940948, with Bosch reference 0280218190. It is a genuine intake measurement component designed for accurate airflow monitoring in the engine management system.
Its job is to measure the amount of air entering the engine and send that data to the control unit so fuel delivery can be adjusted correctly. A healthy sensor supports smooth running, stable idle, proper throttle response and balanced fuel consumption while helping the engine maintain clean and efficient combustion.
Common signs of a faulty unit include hesitation under acceleration, rough idle, reduced power, increased fuel use, uneven running or an engine warning light. In some cases, incorrect airflow readings can also contribute to hard starting, poor drivability or mixture-related fault codes.
This is a used original part, removed from a vehicle and tested before sale. Match the exact OEM number before ordering. Professional installation is recommended, and basic adaptation or fault-code clearing may be required after fitting where appropriate for the vehicle system.
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/
