BMW 3 Series E90 E91 318i N46 Engine Gearbox Wiring Harness Module 7572364

BMW 3 Series E90 E91 318i N46 Engine Gearbox Wiring Harness Module is an original component from the Cables, harnesses and connectors group, designed for the precise connection of control modules with the powertrain equipment. It ensures stable signal and power transmission between the N46 engine and the gearbox, which translates into predictable operation of control and diagnostic systems. This solution is dedicated to the specific BMW 3 series configuration, ensuring the factory installation logic is maintained.

Specifications and technical data

• SKU: rhd-7572364
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7572364
• Substitutable numbers: 12517572364, 7572364, EM
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The presented harness is designed to work with the N46 engine in the BMW 3 series E90/E91 generation in the 318i version, covering both the engine unit and the gearbox area. It is responsible for connecting sensors, actuators, and control modules, enabling proper communication with the vehicle's electronics. Thanks to the factory fit, the correct length of sections, connector placement, and cable routing relative to mechanical components are maintained.

Construction and connectors

The harness belongs to the Cables, harnesses and connectors category, which means it consists of a set of wires with varying cross-sections, embedded in protective covers and terminated with dedicated plugs. The connectors are profiled for specific sensors and modules, which minimizes the risk of errors during installation and facilitates servicing. The design provides appropriate mechanical strain relief for critical points to reduce stress during engine and gearbox operation.

Benefits of using an original BMW harness

Using an original harness in the engine and transmission area allows for consistency with the factory electrical installation design. Key advantages include:

• secure fit of connectors to the N46 engine equipment and gearbox,
• properly selected cable routing paths relative to heat and moving elements,
• maintenance of compatibility with factory BMW electrical diagrams,
• facilitated diagnostics thanks to the predictable layout of the wires.

As a result, the installation process is orderly, and the risk of communication problems between controllers and sensors is limited. This is particularly important in vehicles where signal stability affects the operation of the ignition system, fuel injection, and safety functions.

Application in service and modernization

The engine and gearbox harness is a component that may wear out over time, especially in areas exposed to high temperatures and vibrations. Replacing it with an original component allows for the restoration of proper electrical connections where there are issues with insulation abrasion, circuit breaks, or damaged connectors. It is a practical solution both for post-collision repairs and for comprehensive engine unit maintenance when larger mechanical assemblies are being dismantled.

Condition and compatibility verification

The item is offered as used, which allows for an economical replacement of the harness while maintaining the manufacturer's original specifications. Before purchasing, it is worth verifying compatibility with the vehicle configuration using the manufacturer's markings and BMW service documentation to ensure full compatibility with the given 318i version based on the E90/E91.

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other elements from the same group, such as additional harnesses, sensor cables, or module connectors, check the available parts in the BMW cables, harnesses and connectors category.

For a better understanding of how the electrical installation works in the context of powering and controlling the powertrain, material describing the principles of selecting components by manufacturer numbers and their diagnostics may be helpful – a detailed discussion can be found in the article Fuel system – injectors, pumps and fuel tank: maintenance and regeneration.