Audi Q5 8R Rear LED Light Third Brake Wiring Harness Light Right O/S 8R0945222

Audi Q5 8R Rear LED Light Third Brake Wiring Harness Light Right O/S is an original electrical installation component designed to support the rear auxiliary brake light on the right side of the vehicle. Thanks to its factory design, it ensures proper power supply to the LED module and a stable connection with the vehicle's electrical system, which translates into safe and predictable lighting operation.

Specifications and technical data

• SKU: 8R0945222
• Mark: Audi
• Condition: Used
• OEM Part Number: 8R0945222
• Substitutable numbers: 8R0945222, 8R0 945 222
• Location on the vehicle: Rear, Right
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function of the wiring harness

The presented wiring harness is dedicated to the rear right area of the vehicle and is responsible for connecting the third LED brake light to the car's main electrical system. Properly routed wires and factory-fitted connectors allow for secure installation in the original mounting points, without the need for any modifications to the wiring.

This solution allows for maintaining the consistency of the lighting system, minimizes the risk of controller errors, and eliminates problems with unstable contact, which are typical for universal or custom-made solutions.

Construction and fitment for Audi

The wiring harness has been designed specifically for the body structure of the Audi Q5 8R generation, taking into account the geometry of the tailgate and the routing of wires on the right side. The appropriate length of the wires and factory-fitted ends allow for installation in existing brackets and grommets, which facilitates service and reduces labor time.

As a result, this component works well with the original third LED brake light, ensuring stable electrical parameters and correct communication with the vehicle's electrical system, without the need for additional adapters.

Benefits of using an original wiring harness

Using a factory wiring harness instead of a damaged or modified component allows you to restore the correct operation of the rear brake light and avoid diagnostic error issues. This is particularly important in vehicles equipped with advanced lighting control systems, where incorrect resistance or circuit breaks can generate warning messages.

The main advantages include:

• secure fitment to the structure of the rear body section on the right side,
• preservation of the original wire routing path,
• compatibility with the factory third LED brake light,
• reduction of the risk of failures resulting from makeshift wiring repairs.

Condition and service application

The component comes from disassembly and is intended for service applications in vehicles where the wiring in the rear right part of the tailgate or body has been damaged. Replacing it with an original wiring harness allows for restoring the correct operation of the brake light without interfering with the factory electrical architecture.

This solution is particularly beneficial in the case of post-accident repairs, tailgate replacement, or mechanical damage to wires resulting from daily use.

Expanding Audi lighting upgrades

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Audi and need other components from the same group, such as wires, connectors, or additional harnesses, check out the available parts in the Other Audi category.

If you are interested in a broader context of technical solutions used in the sports variants of this brand, it is worth reading an article discussing the differences in the construction of powertrains, braking systems, and chassis – you will find them in the post Audi RS vs other models – what is hidden under the hood and chassis?, which allows for a better understanding of Audi's design philosophy and helps in making informed decisions when choosing parts.