Mercedes BOSCH manufactured used Airflow Meter 0280217500 / 0 280 217 500 / Up for sale is a good working Airflow Meter - Part number 0280217500 / 0 280 217 500 -Original equipment used BOSCH unit. Good working condition. Comes with a 30 day functionality guarantee! Significantly cheaper than a new china-made unit, and it's still a Genuine BOSCH quality unit. and about 1/20th the cost of new BOSCH.