Audi A4 B7 Rear Tail Light Lamp Outer Wiring Harness Cable Left N/S 8E5945095

Audi A4 B7 Rear Tail Light Lamp Outer Wiring Harness Cable Left N/S is an original electrical system component designed to support the rear outer tail light on the left side of the vehicle. Thanks to its factory-fit design for Audi A4 B7 generation models, this wiring harness ensures a secure electrical connection, stable power supply, and proper operation of lighting functions. It is a practical solution for replacing damaged wiring or for post-collision repairs when you want to maintain compliance with factory specifications.

Specifications and technical data

• SKU: 8E5945095-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E5945095
• Substitutable numbers: 8E5945095, 8E5 945 095
• Location on the vehicle: Rear, Left
• Part type: Rear Light Assembly
• Category: Rear Light Assemblies

Purpose and fitment

The presented wiring harness is a component dedicated to the rear lighting system of the Audi A4 B7, installed in the area of the rear left outer tail light. Its placement on the driver's side of the vehicle allows for direct replacement of damaged or corroded wiring without the need for modifications. Using an original wiring harness reduces the risk of compatibility issues with the light unit, control modules, and the vehicle's main body harness.

Function in the lighting system

The wiring harness is responsible for transmitting signals and power to the individual circuits of the light, such as the position light, brake light, turn signal, or fog light – depending on the configuration of the installed lamp. Stable electrical connections are crucial for:

• trouble-free operation of tail lights and brake lights,
• maintaining proper vehicle visibility on the road,
• avoiding lighting-related errors on the instrument cluster,
• meeting safety requirements and traffic regulations.

Using a factory wiring harness reduces voltage drops, contact overheating, and typical problems resulting from makeshift wiring repairs.

Component characteristics and installation

As a part belonging to the Tail lights and brake lights group, the harness has been designed to operate in the rear of the vehicle, where it is exposed to temperature changes, moisture, and vibrations. The construction with factory connectors, appropriate wire length, and correct routing facilitates installation in the original mounting points.

In practice, this means that with proper access to the lamp and trunk upholstery, the replacement can be carried out in an orderly manner, without the need to interfere with the main body harness. Proper routing of the wires minimizes the risk of insulation abrasion and subsequent short circuits.

Component condition and service application

The offered wiring harness is a used component, which allows for an economical repair of the lighting system while maintaining the original build quality characteristic of the Audi brand. This solution is particularly beneficial in cases of:

• post-accident repairs in the rear of the vehicle,
• mechanical or thermal damage to the old wiring,
• problems with intermittent lighting on the left side,
• corrosion of contacts and connectors in the vicinity of the lamp.

Using an original wiring harness limits the need for custom connections, soldering, or the use of universal adapters, which translates into greater system reliability in the long term.

Selection support and system expansion

When working on rear lighting, it is worth paying attention to the condition of the lamp itself, bulb holders, and sockets in the body to avoid the recurrence of faults resulting from moisture or corrosion. If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Audi and need other elements from the same group, such as tail light assemblies, control modules, or additional cables, check the available parts in the Audi tail lights and brake lights category.

If you are also interested in topics related to the durability of drivetrain components, wear diagnostics, and making informed choices regarding used parts, you will find practical tips in the guide Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems, which helps in better planning repairs and purchases of used parts.