Description
The BMW X3 E83 Door Wiring Harness Right Left Rear is an original electrical system component from the Wires, Harnesses, and Connectors category, designed for the rear right and left doors. This used, factory harness ensures proper signal and power routing within the doors, contributing to stable electrical operation and correct communication with body modules.
Specifications and technical data
- SKU: 3412574
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 3412574
- Substitutable numbers: 61123413143, 3413143, 3412574, ŁS, 24008617002, 8617002, 24007642969, 7642969, 24007644622, 7644622, 24007607648, 7607648, 24007616607, 7616607
- Location on the vehicle: Rear, Right, Left
- Category: Wiring Harnesses, Cables & Connectors
Purpose and Fitment for BMW X3 E83
The presented wiring harness is specifically designed for the BMW X3 E83 model, taking into account the factory wiring layout in the rear doors. Its placement on the vehicle covers the rear right and left sides, allowing for the component’s use in accordance with the original installation architecture.
By maintaining the original wire geometry and appropriate connectors, the harness allows for installation similar to the factory solution, without the need for modifications to the body’s electrical system.
Technical Characteristics of the Door Harness
The door harness is part of the components responsible for transmitting power and control signals between the vehicle body and the doors. It includes wires and connectors matched to the factory sockets in the rear doors, promoting a secure electrical connection.
This type of solution is used, among other things, for operating typical door-mounted components such as actuators, window controls, and lighting, according to the specific vehicle configuration. Using an original harness minimizes the risk of connection resistance issues, circuit breaks, and improper operation of comfort systems.
Practical Application and Installation Benefits
Replacing the door harness in the BMW X3 E83 is particularly recommended in cases of mechanical wire damage, chafing in grommets, or electrical communication problems in the rear doors. Using an original component from the same category allows for:
- restoring correct electrical operation of the rear doors on the right and left sides,
- maintaining compatibility with the factory wiring diagram,
- reducing the need for additional connector and wire adaptation.
A used door harness is a sensible choice when aiming to preserve the original installation design while optimizing repair costs.
Compatibility Check and Reference Numbers
The component has an assigned part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific BMW X3 E83 version. Before purchasing, it is advisable to compare the markings with the vehicle’s data and the existing installation to confirm the harness’s full compatibility with the car’s configuration.
This helps to reduce the risk of incompatibility with control modules and ensures proper cooperation with other elements of the electrical system.
Other BMW Wires, Harnesses, and Connectors
If you are looking for other BMW Wires, Harnesses, and Connectors for your car, check out the BMW Wires, Harnesses, and Connectors available in our assortment to select electrical system components tailored to your specific model.
To compare solutions used in the premium segment and the possibilities of using dismantled components in other brands, you can read an article describing the practical aspects of using used components in higher-class cars: used Mercedes parts – original parts from dismantling.






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