BMW AMM Up for sale is a Good used working BMW AMM . Fits SOME E34 525i is E36 325i is THIS AIR MASS METER CAME OUT OF A 1992 BMW 525. THE BOSCH PART NUMBER IS 0 280 213 011. unit is used and is fully runtested in an actual car and offers a 30 day warranty - works well! Unit came from a salvage car that was hit hard in the rear. Please be sure you check the part number off of your old one before buying. I bad AMM can cause a lean running condition, lopy idle, a no start, runs but has no power, random stalling, or any other strange running conditions. This is CHEAP compared to new or rebuilt, even at wholesale prices! My application list states that this fits- Manufacturer: Original Bosch 0280213011BMW Part #: 1 730 074 / 1730074 Fitment Listed: BMW E36 - 325is (2DR) - 1991-92BMW E36 - 325i (4DR) - 1991-92BMW E34 - 525i (4DR) - 1990-92BMW E34 - 525i Wagon - 1990-92