BMW F20 F21 LCI Rear Light Lamp Side Panel Right O/S Plug Socket Wiring 2141397

BMW F20 F21 LCI Rear Light Lamp Side Panel Right O/S Plug Socket Wiring is an original electrical installation component designed for the right rear lamp in facelifted BMW 1 Series models. Thanks to its factory-fit design, the wiring harness ensures stable power supply to the rear light and brake light, minimizing the risk of lighting errors and communication issues with control modules. It is a practical solution when replacing a damaged lamp, repairing the installation after a collision, or restoring full lighting functionality.

Specifications and technical data

• SKU: 7359018-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7359018
• Substitutable numbers: 7359018, 63217359018, 2141397, 1718660
• Location on the vehicle: Rear, Right
• Category: Rear Light Assemblies

Purpose and function of the wiring harness

The presented wiring harness is dedicated to supporting the rear right lamp in the facelifted (LCI) BMW F20/F21 body style. It is responsible for transmitting signals from the vehicle's electrical system to the individual lamp circuits, such as the position light, brake light, or turn signal, in accordance with the configuration used in a given vehicle. Using the correct, original wiring harness allows for maintaining proper cooperation with the vehicle's electronics, including bulb failure monitoring and onboard diagnostics.

Construction and fitment for BMW

The wiring harness has been designed specifically for the BMW 1 Series F20/F21 LCI, which translates to the correct cable length, proper connectors, and a logical layout of wires in the trunk area. Factory plugs allow for plug-and-play installation to the lamp and the vehicle's electrical system, without the need for modifying wires, soldering, or using adapters. This solution reduces the risk of future problems with contact corrosion, unstable connections, or lighting interference.

Scope of application in the rear right zone

The vehicle placement defined as rear – right side means that the wiring harness is intended exclusively for the right rear lamp. In practice, it is used in situations such as:

• damage to wires resulting from a rear-end collision,
• corrosion or overheating of contacts at the lamp,
• problems with intermittent lighting failure on the right side,
• replacing the lamp with a functional unit while retaining the original installation.

By maintaining factory wire routing and original connectors, the harness supports the proper operation of rear lights and brake lights, which has a direct impact on safety and compliance with road traffic regulations.

Condition, origin, and benefits of using BMW parts

The item comes from a vehicle disassembly and is offered as an original BMW part in used condition, which allows for combining reasonable cost with factory-level build quality. Unlike universal replacements, the original wiring harness ensures proper fitment, correct wire gauge, and compatibility with factory connectors and control modules. This is particularly important in modern installations where lighting is monitored by the vehicle's electronics.

Installation recommendations and selection by part numbers

When selecting a wiring harness for a specific BMW 1 Series vehicle, it is worth using the OEM part number or interchangeable numbers and vehicle VIN data to confirm full configuration compatibility. It is recommended to entrust the installation to a person with experience in electrical systems in BMW vehicles, which will help avoid connector damage and ensure proper wire routing in the trunk area. A properly selected and installed wiring harness reduces the risk of lighting errors appearing on the dashboard and system diagnostic issues.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your BMW and need other components from the same group, such as combination lamps, control modules, or additional cables, check the available parts in the BMW rear lights and brake lights category.

For users interested in a broader context of selecting used OEM components by part numbers or VIN, an article describing practical principles of selection and verification of components may be helpful – you can find it here: Audi five-cylinder engine – a legend from Quattro to RS3 and how to take care of it using original Audi parts.