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

BMW X5 E70 F07 F10 Twin Turbocharger Bi-Turbo 535d 40dX N57S Diesel is an original component from the Turbochargers and parts group, designed for advanced BMW diesel engines. The two-stage turbocharging system provides high power and torque potential while maintaining efficient and dynamic diesel engine performance.

Specifications and technical data

• SKU: 7808363-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7808363
• Substitutable numbers: 7808363, 11657808363
• Fuel type: Diesel
• Part type: Turbocharger
• Category: Turbos & Parts

Purpose and technical characteristics

The presented bi-turbo turbocharger has been designed to work with BMW N57S family engines in 535d and 40dX versions, used in models such as the X5 E70, as well as selected versions of the F07 and F10 series. The twin-turbo system allows for efficient use of exhaust gases across a wide rev range, which translates into rapid torque build-up and stable power maintenance at higher engine speeds. A direct-injection diesel engine requires a precisely matched turbocharging system – this turbocharger provides the appropriate boost pressure, supporting both performance and the engine's refinement. The bi-turbo design enables a smooth transition between turbocharging stages, reducing noticeable throttle lag.

Benefits of using a bi-turbo turbocharger in a BMW

Using this turbocharger in a BMW diesel engine brings a number of measurable operational benefits:

• better flexibility across the entire rev range, especially when accelerating from low speeds,
• stable power maintenance under heavy load, which is crucial in heavier models such as the X5,
• more linear torque delivery, improving driving comfort and safety during overtaking,
• efficient utilization of the N57S unit's potential without the need to modify other components. For users expecting dynamic yet economical driving, a functional bi-turbo system is a key element in maintaining factory engine parameters and the proper operation of control systems.

Condition, origin, and fitment

The offered turbocharger comes from a BMW vehicle and is a used component, which allows for economical repair or restoration of the factory turbocharging system configuration. This solution is particularly beneficial for comprehensive overhauls of diesel engines, where both quality and cost control are important. Before installation, a standard service procedure is recommended: verification of the lubrication system, checking the patency of oil lines, and checking the intake and exhaust for leaks. A properly prepared diesel engine combined with a correctly selected bi-turbo turbocharger helps maintain stable operating parameters and reduces the risk of premature wear.

Integration with the BMW diesel engine system

The bi-turbo system in N57S engines works with advanced electronic control, the fuel injection system, and the exhaust gas recirculation system. Properly matching the turbocharger to the specific engine configuration has a direct impact on:

• correct operation of the boost maps stored in the engine control unit,
• maintaining appropriate boost pressure and exhaust gas temperature values,
• proper operation of filters and exhaust gas cleaning systems in the diesel engine. By maintaining the original design specification, installing this turbocharger allows for the restoration of the engine's factory performance parameters without the need for ECU software intervention.

Technical support and additional materials

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as manifolds, intake hoses, or boost control elements, check the available parts in the BMW Turbochargers and parts category. For users interested in a broader comparison of BMW diesel engines and the impact of component selection on performance and operating costs, the following article will be useful: BMW N47 vs M57 / M57N / M57N2 – a ranking of legendary diesels, which discusses the characteristics of popular engines and the importance of the quality of aftermarket components. If you want to better plan your purchases of used components – from engine parts to small mounting accessories – the guide how to complete used car parts in one place may also be helpful, describing the advantages of a One-Stop-Shop approach and the conscious choice of original used parts.