BMW F20 F30 LCI B38 Petrol Turbo Wastegate Valve Actuator 7647115

The BMW F20 F30 LCI B38 Turbo Wastegate Actuator 7647115 is an original turbocharger and parts component designed for BMW F-Series petrol engines with the B38 engine. This used wastegate actuator allows for a cost-effective, yet technically correct, repair or upgrade of your vehicle's turbocharger system.

Specifications and technical data

• SKU: 8485117
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8485117
• Substitutable numbers: 8485117, 11658485117, 7647115
• Fuel type: Petrol
• Category: Turbos & Parts

Purpose and function in the supercharging system

The turbo wastegate actuator is responsible for precise control of the turbocharger wastegate valve in the B38 gasoline engine. A properly functioning component:

• stabilizes the boost pressure over the full load range,
• reduces the risk of turbine overloading,
• supports the maintenance of factory power and torque parameters,
• affects the smooth operation of the engine and the response to gas.

Thanks to proper cooperation with the engine control electronics, the wastegate actuator helps maintain safe operating conditions of the turbocharger, which is important for both the performance and durability of the entire charging system.

Technical characteristics and compatibility

The presented component comes from a group of turbochargers and parts dedicated to BMW F20 and F30 facelift (LCI) models equipped with the B38 petrol engine. This means it was designed to meet the specific design requirements of this engine:

• retains the factory mounting geometry,
• is adapted to the operating parameters of the turbocharger used in the B38,
• works with the control system intended for the petrol engine.

Original BMW origin ensures correct fitment to the existing turbocharger and minimises the risk of installation problems typical of aftermarket parts with uncertain specifications.

Product condition and the benefits of choosing a used part

The actuator is offered in used condition, significantly reducing repair costs compared to a new OEM component while maintaining the factory-designed construction. Choosing this type of part is particularly beneficial when:

• you are repairing the charging system in a car used every day,
• you are looking for a reasonable compromise between price and quality,
• you are planning a step-by-step tuning or modernization of the B38 unit while maintaining the standard design assumptions.

A used turbo wastegate actuator can also be a good solution in projects where budget optimization is key while maintaining original BMW components.

Application in tuning and modernization

A functioning wastegate actuator is crucial for any engine control software modifications (remaps, chip tuning), as it's responsible for achieving the desired boost pressure. For projects that utilize used components, it's worth familiarizing yourself with the practical tips described in the article "Tuning with Used Parts – How to Gain Performance Without Breaking the Bank" to ensure safe and informed component selection.

Other turbochargers and parts for BMW

If you are also looking for other components from the category of turbochargers and parts for BMW, check out our range of turbochargers and parts for BMW to complete the entire supercharging system based on compatible components from the same brand.