The Mercedes W201 190E BOSCH Fuel Distributor Regulator Air Flow Meter is a high-quality, genuine part designed for Mercedes-Benz vehicles. Remanufactured in Germany. Parts numbers/codes: 0 438 121 043 (LM0008) & 0 438 101 026 (MT0008) Have installed it and immediately uninstalled it, as I am swapping an engine on my 190e.
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