Description
This is a genuine BMW pressure converter turbo boost valve, OEM number 8509323. It is a used original control valve for BMW applications and is designed to regulate turbocharger vacuum control within the engine’s boost management system.
Its job is to control vacuum or pressure sent to the turbo actuator so the engine can manage boost accurately. By opening and closing in response to engine control signals, it helps maintain proper turbo response, steady power delivery, efficient combustion and correct overall boost regulation.
Common signs of a faulty unit include loss of power, inconsistent turbo boost, limp mode, fault codes related to boost control, hesitation under acceleration or uneven engine response. A failing valve can also contribute to poor drivability when the turbo actuator is not being controlled correctly.
This is a used original part, removed from a vehicle and tested before sale. Match the exact OEM number 8509323 before ordering. Professional installation is recommended, and adaptation or diagnostic checks may be required depending on the vehicle and fault condition.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
