Audi A4 B9 Tail Light Lamp Side Panel Rear Left N/S Taillight 8W5945091G

Visual condition of the part

The product shows signs of use visible in the photos.

Audi A4 B9 Tail Light Lamp Side Panel Rear Left N/S Taillight is an original body component designed for installation in the side panel, on the driver's side. This used tail light ensures factory-compliant geometry, proper light distribution, and a consistent look for the rear of the vehicle, which is particularly important for post-accident repairs and precise restoration. By maintaining the specific construction for the B9 generation, you retain full compatibility with the vehicle's electrical system and styling lines, without the need for modifications.

Specifications and technical data

• SKU: 8W5945091G-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W5945091G
• Substitutable numbers: 8W5945091G, 8W5 945 091 G
• Location on the vehicle: Rear, Left
• Category: Rear Light Assemblies

Purpose and body fitment

The presented tail light is designed for installation in the rear left part of the Audi A4 B9 generation body, in the fender side section. The component works with the other rear lighting segments, creating a cohesive optical system and maintaining the factory body line. Thanks to a design consistent with the manufacturer's solutions, the correct mounting points and beam angle are preserved, which translates into proper vehicle visibility on the road.

Function in the Rear lights and brake lights system

The lamp belongs to the Rear lights and brake lights group, responsible for signaling the vehicle's presence, braking, and direction changes (depending on the specific equipment configuration). A correctly selected element in this area:

• provides a clear light signal for other road users,
• maintains compliance with homologation requirements for the given model,
• reduces the risk of errors in the vehicle's lighting control systems.

By using an original lamp, the vehicle's electrical system recognizes the component as correct, which promotes stable operation of the lighting monitoring systems.

Characteristics of the used component

The offered lamp is a used component, which in practice means real cost savings while maintaining the factory construction. Such elements are particularly valued in post-accident repairs when the priority is maintaining the original technical specification on a reasonable budget. A used tail light allows for restoring the original appearance of the vehicle without the need to resort to replacements with uncertain fitment.

Benefits of using an original Audi lamp

Using an original Audi component in the rear left part of the body translates into a number of practical benefits:

• factory fitment to the shape of the fender and trunk lid,
• consistent color and lens structure relative to other lighting elements,
• stable mounting at the points provided by the manufacturer,
• proper cooperation with the electrical installation and lighting control.

For the user, this means reduced installation time and a lower risk of operational problems, such as leaks or errors in the light control system.

Application in repairs and upgrades

This type of tail light is often used in post-collision repairs, replacing damaged lenses, or tidying up inconsistent modifications made previously. By choosing an original element, you gain:

• the ability to restore the factory look of the rear of the vehicle,
• preservation of the correct light beam geometry,
• easier verification of compliance with Audi service documentation.

This solution is particularly recommended for workshops specializing in the Audi brand and for users who want to keep the vehicle in a configuration close to factory condition.

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 lenses, light modules, or additional lamp segments, check the available parts in the Audi Rear lights and brake lights category.

For those interested in a broader context of selecting used lighting components and other sub-assemblies in VAG group cars, an article discussing the evolution of technical solutions in Volkswagen's sports models may be helpful – you can find it here: Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8.