BOSCH 0261222018 OE Evaporative Emissions System Leak Detection Pump - Compatible with Select BMW 128i 135i 325i 328i 330i 335i 525i 530i 535i 540i 545i 550i 645Ci 745i 750i M3 M5 X3 X5 X6 Z3 Z4 +More;

This Bosch original equipment leak detection pump is part of the evaporative emission control system. The purge valve helps prevent fuel vapor from escaping into the atmosphere by metering the flow of vapor from the active Charcoal filter to the engine in accordance with the engine's operating state. The leak detection pump continuously checks for leaks in the EVAP system to ensure it is functioning properly. You can install Bosch leak detection pumps with complete confidence knowing that they are of the highest quality and meet or exceed OE specifications in fit, form, and function.