Turbo Actuator Turbo Actuator VV19 A2C53166097 A2C53308526 Turbo Charger For Mercedes For PKW W639. Control Effect: The turbocharger actuator regulates exhaust flow, keeping engine speed within a suitable range to improve engine performance. Materials: The actuator is made of plastic and metal, featuring high hardness, resistance to deformation, fracture, and aging, ensuring durability. Ensuring complete fuel combustion improves engine efficiency. This increases engine power and torque, resulting in a more powerful vehicle. We manufacture our products in strict accordance with quality control standards, and each product undergoes multiple inspections and tests before shipment.