Volkswagen AMM 0280200038 / 0 280 200 038 / 025906301 / 025 906 301 Up for sale is a Good working Bosch Volkswagen Vanagon Water cooled, 1983 1984 1985 4 cyl AMM. This fits many 8 valve 4 cyl VW Vans ( Known as transporter in other markets) My list shows-1983-1985 ModelsUnit is used from a collision salvage car and is in good working condition. 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.