BMW F80 M3 F82 F83 M4 Bi-Xenon Headlight Wiring Harness Cable Right O/S 7399106

BMW F80 M3 F82 F83 M4 Bi-Xenon Headlight Wiring Harness Cable Right O/S is an original electrical installation component designed for factory bi-xenon headlights on the passenger side. By maintaining specific geometry and connectors, this wiring harness ensures proper power supply and control of headlight functions, which translates into stable operation of the front lighting and compatibility with the factory BMW installation.

Specifications and technical data

• SKU: RHD-7399106-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7399106
• Substitutable numbers: 7399106, 6925638
• Location on the vehicle: Right
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Application and function in the lighting system

The presented wiring harness belongs to the Wires, harnesses and connectors group and is intended for installation on the right side of the vehicle in BMW F80 M3 and F82/F83 M4 models equipped with bi-xenon headlights. It is responsible for connecting control modules, light sources, and sensors within the lamp, enabling the correct operation of low beam, high beam, and additional functions provided by the manufacturer.

Thanks to factory-standard wire routing and matched connectors, the harness allows for maintaining the original installation architecture, which is crucial for both safety and proper communication with the vehicle's electronic systems.

Construction and fitment for BMW F80 M3 / F82 F83 M4

The harness has been designed specifically for the construction of the right-side bi-xenon headlight, taking into account the layout of sockets, modules, and mounting points in the bodywork. The appropriate length of the wires and factory-finished connectors facilitate installation and minimize the risk of installation errors, such as excessive wire tension or incorrect routing within the lamp housing.

The original BMW origin means that the harness is compatible with the vehicle's electrical parameters, which promotes stable operation of the lighting system and reduces the risk of failures resulting from incorrect resistance or improper wire cross-section. This is particularly important in the case of bi-xenon headlights, which work with advanced control electronics.

Condition, verification, and benefits of using a used part

The item comes from the group of used BMW parts, which allows for an economical repair of the lighting system while maintaining the manufacturer's original specifications. The harness is a good choice in situations where there has been damage to the wires, connectors, or insulation in the existing headlight installation, and it is required to restore full functionality without interfering with the factory electrical architecture.

For users considering the choice between new replacements and OEM components from the secondary market, an article discussing cost and quality differences may be helpful: New or used? A comparison of car parts costs and quality. It allows for a better assessment of when the use of an original, used wiring harness is technically justified.

Why choose an original BMW wiring harness

Using a factory bi-xenon headlight wiring harness on the right side in a BMW F80 M3 / F82 F83 M4 limits the need for installation modifications, which reduces the risk of subsequent lighting problems, error messages, or interference in the operation of control modules. This solution is particularly recommended for professional repairs where compliance with service documentation and predictable behavior of the electrical system are important.

If you are planning a comprehensive repair or upgrade of the front lighting installation area in your BMW and need other elements from the same group, such as additional harnesses, power cables, or lamp connectors, check the available parts in the BMW Wires, harnesses and connectors category.