Wiring Cable BMW E90 E91 E92 N52 Engine Gearbox Module Loom Harness 7572413

The BMW E90/E91/E92 Engine and Gearbox Wiring Harness is an original installation component designed for N52 gasoline engines. It ensures a stable connection between the control module and the drive sensors and components, which translates to proper engine and gearbox operation. This solution is dedicated to users who want to restore the factory functionality of the powertrain in their BMW 3 Series.

Specifications and technical data

• SKU: rhd-7572413
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7572413
• Substitutable numbers: 12517572413, 7572413, BG
• Fuel type: Petrol
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Function in the Vehicle

The presented wiring harness belongs to the Cables, Harnesses, and Connectors group and is used in BMW E90, E91, and E92 models with the N52 gasoline engine. It is responsible for transmitting signals between the control module and the actuators and measuring elements within the engine and gearbox. A correctly selected harness eliminates problems with electronic communication, control unit errors, or unstable engine operation.

Thanks to factory fitting for a specific generation of the 3 Series, the harness maintains the correct wire routing geometry, appropriate cable lengths, and connector placement, which facilitates installation and reduces the risk of mechanical damage during operation.

Construction and Key Technical Features

The BMW engine and gearbox wiring harness is designed as a complete, integrated wiring system with factory connectors. The cables used are adapted for operation in the engine bay, where elevated temperatures, vibrations, and contact with contaminants occur. The cable insulation and harness sheathing ensure adequate resistance to operating conditions typical for gasoline engines.

Key functional features include:

• dedicated connectors that fit sensors and modules used in the N52 engine,
• factory wire branching following the original routing in the engine bay,
• a design prepared for cooperation with the engine and gearbox control module in the E90/E91/E92 platform.

Benefits of Using an Original BMW Harness

Using an original harness to replace damaged or modified wiring allows for the restoration of predictable powertrain behavior. Factory fitting of connectors and cable lengths reduces the need for modifications, soldering, or adapters, which lowers the risk of future failures. This is particularly important in vehicles that have previously experienced issues with chafed wires, corroded contacts, or unstable sensor power supply.

Choosing an original harness is also beneficial for diagnostics – maintaining the factory connection system facilitates work with service testers and allows for more precise localization of potential faults in the future.

Application in N52 Gasoline Engines

The presented wiring harness is intended for vehicles with gasoline engines from the N52 family. This means compatibility with the operating characteristics of this unit, including the placement of sensors, ignition coils, gearbox control elements, and engine accessories. As a result, the user receives a component tailored to a specific drive configuration, without the need for adapting harnesses from other engine versions.

Condition and Part Selection by Markings

This item is from the used parts group, allowing for economical repair while maintaining original BMW specifications. The harness has an assigned OEM part number and related replacement numbers, which facilitates its identification and selection for a specific vehicle. When purchasing, it is advisable to compare the markings with service documentation or vehicle data to ensure full compatibility.

If you want to deepen your knowledge on selecting drive components by OEM numbers and the real benefits of choosing parts from the secondary market, the expert article Why it's worth buying used gearboxes and engines – facts instead of myths, which discusses verification procedures and practical examples, will be helpful.

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