BMW F30 F31 F32 F33 Turbocharger Turbo Actuator 335dX 435dX N57Z 8508092

The BMW F30 F31 F32 F33 N57Z 335dX 435dX Turbocharger Actuator is an original equipment turbocharger and parts component designed to precisely control boost in BMW diesel engines. This actuator ensures factory fit and maintains the turbocharging system's operating characteristics in accordance with the manufacturer's specifications.

Specifications and technical data

• SKU: 8508092-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8508092
• Substitutable numbers: 8508092, 11658508092, 8508091, 8508099, 11658508099, 59001107236, 6NW010099
• Category: Turbos & Parts

Application and compatibility

The BMW F30 F31 F32 F33 turbocharger actuator is designed for the 335dX and 435dX models with the N57Z engine, where it controls turbine geometry or the wastegate (depending on the system configuration). Thanks to its OEM design, it maintains full compatibility with the factory engine components and vehicle electronics.

This component is the right choice when the vehicle experiences problems with dynamics, overcharging, undercharging or turbocharger control errors resulting from faulty actuation.

Construction and function of the turbocharger actuator

The turbocharger actuator in this BMW model is responsible for:

• precise positioning of turbine elements depending on the load and engine speed,
• stabilization of the boost pressure in the full operating range of the drive unit,
• cooperation with the engine control unit (ECU) to reduce turbine lag and improve flexibility.

A properly functioning actuator translates into a smooth increase in torque, better throttle response and reduced risk of the engine entering limp home mode due to incorrect boost pressure.

Benefits of using the original BMW actuator

Choosing an original, used turbocharger actuator for your BMW F Series brings a number of practical benefits:

• Factory fit – maintaining the original operating characteristics of the turbocharging system without the need for mechanical adaptation.
• Consistency with engine control unit software – no need to modify control maps or perform additional programming beyond standard service adaptation.
• Economical repair – the ability to restore the turbine to proper operation without replacing the entire turbocharger, which significantly reduces service costs.
• Reducing the risk of secondary failures – a functioning actuator reduces the mechanical load on the turbine and accessories, which promotes longer operation.

Condition, verification and preparation for assembly

The actuator offered comes from a disassembly and is listed as used, allowing for a reasonable price while maintaining original BMW quality. Before being released for sale, the component is verified for proper operation of the mechanism and connectors, minimizing the risk of installation problems.

Before installation, it is recommended to:

• checking the tightness and condition of vacuum or electrical lines (depending on the version),
• control of the free movement of the lever on the turbocharger,
• performing adaptation/calibration in the engine control unit in accordance with the BMW service procedure.

Why choose a BMW turbocharger actuator from the turbochargers and parts category?

In modern BMW diesel engines like the N57Z, a properly functioning actuator is crucial for engine performance, fuel consumption, and durability. Using an original turbocharger and parts component allows you to maintain factory performance parameters without the compromises typical of aftermarket parts.

If you are looking for other turbochargers and control components for this brand, check out our dedicated category of turbochargers and parts for BMW , where you will find a wide selection of components for the supercharging system.

More about cost-effective repairs with used parts

Using original, used parts—such as a turbocharger actuator—is a proven way to reduce service costs without sacrificing quality. If you're interested in the broader context of cost-effective vehicle repairs using aftermarket parts, it's worth checking out this article on how to save on original car parts when repairing a Volkswagen . Although it focuses on a different brand, the principles of selecting and verifying used components are universal and helpful for BMW owners as well.