The wastegate controls how much boost the turbocharger can produce by limiting the speed that the turbine wheel is allowed to spin. The actuator opens a valve (wastegate) and allows exhaust gasses to bypass the wheel, limiting boost to a preset level. Many earlier turbocharged BMWs use a vacuum-controlled actuator assembly, while later model F chassis and newer vehicles use an electronic wastegate actuator.
The diverter valve takes that compressed air and recycles it through the intake stream Pierburg pumps are some of the most trusted and widely used on the market. From fuel, water, air and vacuum Pierburg has you covered with OE quality and reliable performance year after year.
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