Description
This is a genuine Bosch air mass sensor for BMW E46, E81, E87 and E90 models, supplied under primary OEM number 1438687 with Bosch reference 0280218075. It is an original intake measurement sensor designed to read the amount of air entering the engine so the control system can meter fuel accurately.
Working as a key part of the engine management system, the air mass sensor sends a live airflow signal to the ECU. That information is used to calculate fuel delivery, support smooth idle, maintain stable acceleration and help the engine run efficiently across changing load and temperature conditions.
Common signs of a faulty unit include hesitant acceleration, uneven idle, poor throttle response, increased fuel consumption, reduced power or an engine warning light linked to airflow measurement faults. In some cases, the vehicle may run rich or lean because the ECU is no longer receiving a reliable air intake reading.
This is a used original part, removed from a vehicle and tested before sale. Please match 1438687 and 0280218075 exactly before ordering. Professional installation is recommended, and calibration, adaptation or fault-code clearing may be required depending on vehicle condition and workshop 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/
