BMW Bosch AMM Up for sale is a Good working 0 280 203 002 AMM.  - This was removed from a very clean, recently crash-damaged euro model 735.  This car was someones baby!  Nice shape air flow meter.

Flap works freely output signal looks good. I will warranty it for 30 days after purchase. I bad AMM can cause a lean running condition, loopy idle, no start, runs but has no power, random stalling, excess smoke, pinging, or any other strange running conditions. This is CHEAP compared to new or rebuilt, even at wholesale prices! As with all these flaper type Bosch air flow meters, you may need to do the basic setting adjustment (controlled by the tension screw) in order to dial this in properly for your car. See your cars service manual.