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

BMW F10 M5 / F12 F13 M6 S63N Fuel Pump Module is an original part of the gasoline fuel supply system, designed for precise cooperation with the S63N engine. As a component in the Fuel Pumps and Level Sensors category, it ensures stable fuel delivery from the tank and correct fuel level reading, which translates to predictable engine operation and proper vehicle diagnostics.

Specifications and technical data

• SKU: 7845656-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7845656
• Substitutable numbers: 16117845656, 7845656
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Intended Use and Function in the Fuel System

The presented tank module is specifically designed for BMW F-series models with the S63N engine, namely the F10 M5 and F12/F13 M6. It is responsible for pumping gasoline at the correct working pressure from the tank chamber to other system components, as well as for cooperating with the fuel level sensor, which transmits data to the instrument cluster and engine control unit.

A properly selected fuel pump module is crucial for:

• stable engine operation across the full range of loads,
• maintaining the correct fuel-air mixture composition,
• proper operation of diagnostic and traction control systems,
• trouble-free cold and hot starts.

Tank Module Construction and Performance Parameters

The fuel pump module in this version combines several key functions in one housing: supplying the system with gasoline, pre-filtration, and cooperation with the level sensor float. This keeps the fuel system compact and simplifies servicing – replacement is done as a complete module installed in the tank.

The component is designed to work with gasoline, in accordance with the requirements of the S63N engine. The OEM construction ensures appropriate performance and flow characteristics, matched to the factory engine control and working pressure specified by the manufacturer.

Condition, Fitment, and Installation

The offered module comes from a BMW vehicle and is an original part, meaning factory fitment to the tank receptacle and compatibility with the electrical and fuel systems of the specific model. Therefore, installation in place of a worn or damaged module does not require modifications, only standard servicing procedures.

Before installation, it is recommended to:

• verify compatibility by OEM number or interchangeable part numbers,
• inspect the condition of the fuel and electrical systems around the tank,
• check the seal integrity after installing the module.

Benefits of Using an Original Fuel Pump Module

Using an original tank module in a BMW M5/M6 with an S63N engine allows for maintaining the fuel system's operating parameters at the level intended by the manufacturer. This translates to:

• stable supply pressure under high loads characteristic of M engines,
• correct cooperation with the factory engine control unit and safety systems,
• reduced risk of errors related to incorrect fuel levels reported to the vehicle's electronics.

This solution is particularly recommended for vehicles used dynamically, where the fuel system is heavily loaded and requires maintaining factory flow parameters.

More About Fuel Pumps and System Diagnostics

If you want to better understand how the fuel supply system in your BMW works, including pumps, injectors, and the tank, it's worth reading the technical guide: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair. You will find practical tips on diagnostics, selecting parts by OEM number, and operating principles.

Other BMW Fuel Pumps and Level Sensors

If you are also looking for other BMW fuel pumps and level sensors for other models of this brand, check the available assortment in the BMW Fuel Pumps and Level Sensors category to select parts matched to the specific engine version and year of your car.