BMW X5 E70 LCI F07 F10 Twin Turbocharger Bi-Turbo 535d 40dX N57S Diesel 7808363

Visual condition of the part

The product shows signs of use visible in the photos.

BMW X5 E70 LCI F07 F10 Twin Turbocharger Bi-Turbo 535d 40dX N57S Diesel is an original two-stage turbocharger designed for BMW 5 Series and X5 diesel engines. The bi-turbo design ensures dynamic acceleration across the entire rev range, and its factory origin guarantees a perfect fit for the intake and exhaust systems. This is the ideal solution for users who expect stable engine performance and predictable vehicle behavior under load.

Specifications and technical data

• SKU: 7808363-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7808363
• Substitutable numbers: 7808363, 11657808363, 7808166
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and compatibility

The presented bi-turbo turbocharger has been designed for BMW N57S family diesel engines used in X5 E70 LCI, 5 Series F07, and F10 models in 535d and 40dX versions. Using a factory BMW solution allows for maintaining original torque characteristics, engine refinement, and correct boost pressures throughout the entire rev range.

Thanks to the twin-turbo design, the boost system reacts faster to throttle input at low RPMs, while providing stable, powerful boost at higher speeds. This is particularly important in heavier vehicles, such as the X5, where smooth power delivery and safe overtaking are essential.

Construction and operating characteristics

The bi-turbo system in the N57S engine uses two cooperating turbochargers, which allows for precise boost pressure management depending on load and engine speed. This configuration improves engine flexibility, reduces turbo lag, and supports even power delivery.

The original BMW turbocharger is optimized for exhaust and intake airflow, which translates into:

• consistent performance across the entire rev range,
• stable boost pressure under long-term load,
• better compatibility with factory engine control unit (ECU) software.

Application in diesel engines

BMW diesel engines require a precisely matched boost system to maintain proper injection pressure, exhaust gas temperature, and combustion parameters. The twin-turbo turbocharger for diesel units in this model has been configured to support high torque at low RPMs, which is crucial for daily operation and driving under load.

A properly selected turbocharger also helps reduce excessive exhaust smoke and supports the correct operation of exhaust aftertreatment systems, which is important for both engine durability and compliance with emission standards.

Condition, origin, and benefits of installation

The offered turbocharger comes from the BMW line, which means maintaining factory manufacturing standards and mounting geometry. The used condition allows for an economical replacement while retaining the vehicle's original specifications, which is beneficial for accident repairs or maintenance.

Choosing an original turbocharger from the Turbochargers and parts category offers, among others:

• certainty of fitment to factory manifolds and lines,
• preservation of stock engine performance parameters,
• easier diagnostics and configuration at the service center.

If you are planning a comprehensive repair or upgrade of your BMW engine area and need other components from the same group, such as turbine housings, control valves, or oil lines, check out the available parts in the BMW Turbochargers and parts category.

How to select the right turbocharger using OEM numbers

When selecting a turbocharger for a BMW, it is crucial to compare the OEM number and interchangeable numbers with vehicle data and service documentation. This helps avoid problems with installation, incorrect boost pressure, or engine control unit errors.

To minimize the risk of mistakes when shopping online and to correctly verify component compatibility using numbers, it is worth using the practical tips described in the article: Risk-free online parts shopping – 5 proven ways to verify component compatibility using OEM numbers and paint codes.