Fuel Pump BMW F10 M5 F12 F13 M6 S63N Tank Delivery Unit Module Petrol 7845656

Fuel Pump BMW F10 M5 F12 F13 M6 S63N Tank Delivery Unit Module is an original fuel system component designed for high-load V8 biturbo engines. As part of the Fuel pumps and level sensors group, it is responsible for stable fuel delivery from the tank and precise measurement of fuel levels, which is crucial for the performance and safety of the S63N engine. This OEM solution ensures proper compatibility with the vehicle's electronics and the factory operating characteristics of the fuel system.

Specifications and technical data

• SKU: 7845656
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7845656
• Substitutable numbers: 16117845656, 7845656
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The described module is a complete unit that delivers petrol from the tank to the subsequent components of the fuel system in BMW F10 M5 and F12/F13 M6 models with the S63N engine. The integrated design combines the supply pump and the fuel level sensor in one housing, which enables:

• maintaining the appropriate fuel pressure at the inlet to the subsequent stages of the system,
• stable engine supply under high loads and high rotational speeds,
• accurate fuel level reading transmitted to the instrument cluster and engine control unit.

As a result, the engine maintains proper operating culture, and onboard systems can precisely manage fuel dosing and range monitoring.

Module construction and benefits of using OEM

The Fuel Pump BMW F10 M5 F12 F13 M6 S63N Tank Delivery Unit Module was designed by the vehicle manufacturer with the specific requirements of the S63N engine in mind, which generates high thermal and hydraulic loads. Using an original solution ensures:

• factory performance characteristics matched to the engine control unit maps,
• proper compatibility with the electrical installation and BMW diagnostic system,
• appropriate geometry of the basket in the tank, reducing the risk of air suction during dynamic driving.

This is particularly important in cars with a sporty character, where stable petrol supply has a direct impact on the performance and durability of the engine.

Condition, installation, and OEM selection

The item comes from a used vehicle and is offered as a pre-owned part, which allows for an economical repair of the fuel system while maintaining the original specification. The module is intended for installation in the factory location in the fuel tank, using standard mounting points and factory electrical and fuel connectors.

The selection of this type of component should always be based on the OEM number and interchangeable numbers, which minimizes the risk of incompatibility with a specific body and engine version. In case of doubt, it is worth using the vehicle's VIN and service documentation to ensure that the module matches the configuration of the given unit.

Fuel system operation and technical support

High-performance petrol engines, such as the S63N, are particularly sensitive to fuel quality and the condition of supply components. Regular inspection of the pump's operation, hose tightness, and the accuracy of fuel level readings helps reduce the risk of starting problems, power drops, or errors stored in the engine control unit.

For users who want to deepen their knowledge of fuel system diagnostics and maintenance, an article discussing the principles of operation, part selection by VIN/OEM, and typical service procedures will be useful – check the material: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expansion and other BMW fuel system components

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and need other components from the same group, such as additional pump modules, level sensors, or in-tank supply elements, check the available parts in the BMW fuel pumps and level sensors category.

Using original components from this group allows for maintaining consistent operating parameters, facilitates computer diagnostics, and reduces the risk of problems resulting from the incorrect selection of replacements.