Description
The BMW F90 M5 Rear Left Light Wiring Harness Connector is an original electrical system component designed to service the rear left lighting in the BMW 5 Series F90 M5 model. It ensures a secure, stable connection between the lamp and the vehicle’s wiring, which translates to the correct operation of the rear and brake lights. This solution is dedicated to users who want to maintain the factory lighting control logic and high system reliability.
Specifications and technical data
- SKU: 6909052-3
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 7376473
- Substitutable numbers: 7376473, 63217376473, 6909052
- Location on the vehicle: Rear, Left
- Category: Rear Light Assemblies
Purpose and Function in the Lighting System
The presented wiring harness is a component from the Rear Lights and Brake Lights area, responsible for transmitting electrical signals to the rear left lamp. Its placement on the vehicle, specified as the rear – left side, allows for unambiguous identification of the component during selection and installation.
In practice, this means the harness:
- connects the lamp to the vehicle’s main electrical system,
- ensures correct power supply for individual lighting functions,
- minimizes the risk of communication errors in systems monitoring light operation.
Compatibility and Fit for BMW
As a component dedicated to the BMW F90 M5, the harness has been designed considering factory connectors, wire lengths, and the geometry of routing the wiring within the rear bodywork. This ensures a tidy installation process without the need for modifications or adapters.
Original sourcing from the BMW group also means compliance with the electrical parameters specified by the vehicle manufacturer, which is important for the lamp’s durability and the stability of control modules.
Performance Characteristics and Benefits of Use
The wiring harness for the rear left lamp in the BMW F90 M5 has been developed for trouble-free operation in demanding road conditions. The use of appropriately selected wire cross-sections, insulation, and a connector matched to the lamp helps to limit voltage drops and interference in lighting operation.
Key benefits of using this component include:
- Factory Fitment – compatibility with the vehicle’s wiring without altering the original harness.
- Stable lighting system operation – proper signal transmission to rear and brake light functions.
- Simplified diagnostics – unambiguous placement on the vehicle (rear, left side) simplifies the location of potential faults.
Condition and Service Application
The component is offered as a used original part, allowing for an economical yet technically correct repair of the lighting system in the BMW F90 M5. This type of harness is suitable for replacing a damaged wire or lamp connector, as well as for restoring full lighting functionality after a collision or wiring modifications.
The correct harness for a specific vehicle configuration is facilitated by manufacturer markings and assignment to the appropriate side of the vehicle, which reduces the risk of installation errors and speeds up service work.
If you are planning a comprehensive repair or upgrade of the rear lighting area in your BMW and need other components from the same group, such as taillights, power wires, or signal connectors, check the available parts in the BMW Rear Lights and Brake Lights category.
For users interested in deepening their knowledge of diagnostics and selecting parts by OEM numbers, as well as the principles of proper vehicle system operation, the guide article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair may be helpful, discussing practical aspects of working with technical documentation and manufacturer markings.
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