BMW Airflow Meter / 13 62 1 460 447 / 13621460447 / 0280200040 / 0 280 200 040 Up for sale is a good working Airflow Meter that should fit Many K100 / K75 models from 86 87 88 89 90 91 92 93 94 95 96. Check your part number off your original. The airflow meter of the heart of your bikes fuel injection system. This unit is GOOD USED, and guaranteed to work on arrival and comes with a 30 day functionality guarantee. A defective air flow meter can cause a whole host of drivivability issues, including but not limited to, lean running, no-start, uneven running, runs but has no power, smoke or overheating (which can be caused by lean or rich running!