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. As part of the Rear lights and brake lights group, it ensures proper light signaling, a consistent look for the rear of the vehicle, and compatibility with the factory Audi installation.

Specifications and technical data

• SKU: 8W5945091G
• 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 fitment for Audi A4 B9

The presented tail light has been designed specifically for the Audi A4 B9 model, taking into account the body geometry and factory mounting points. The placement on the vehicle is the rear, left side, which allows for precise fitting to the side panel without the need for bodywork modifications or interference with the car's structure.

The original Audi origin means maintaining the correct optical characteristics, compliance with type approval, and proper cooperation with the vehicle's electronics (blown bulb sensors, light controllers). As a result, the lamp works stably under typical operating conditions, from daily city driving to longer trips.

Construction and function of the tail light

The rear side lamp in the Audi A4 B9 is responsible for clearly signaling the vehicle's presence on the road and clearly indicating maneuvers to other road users. The optical design has been developed to:

• ensure good visibility of the position light and brake light from a long distance,
• maintain the consistent, characteristic Audi graphic layout of the rear lights,
• limit glare for drivers behind while maintaining the required light intensity.

Precise fitment with the body line reduces the risk of leaks at the contact point with the bodywork, which is important for protecting the interior of the lamp from moisture and for the aesthetics of the entire rear part of the vehicle.

Condition, installation, and service application

The item is used, which in practice means it comes from disassembly and has been verified for suitability for further use. This type of part is a particularly beneficial solution for post-accident repairs, point damage to the rear corner, or replacing a lamp after a cracked lens.

The lamp is installed at the factory mounting points, using the original electrical wiring routing method. In most cases, the installation is similar to plug&play – after mechanical mounting, simply connect the electrical connector, and the lamp will work with the existing lighting system.

Benefits of using an original Audi lamp

Using an original rear side lamp in the Audi A4 B9 allows you to maintain a consistent look for the vehicle, without differences in the shade of the lens or light intensity between the left and right sides. This is important both from a safety point of view and for the visual value of the car.

The main advantages of such a solution include:

• factory fitment to the Audi body and electrical system,
• preservation of the original lighting characteristics and light pattern,
• the possibility of economical repair using a used part instead of a new one,
• reduction of the risk of compatibility problems typical of low-quality replacements.

Expanding lighting upgrades in Audi

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 additional combination lamps, light modules, or side lighting segments, check the available parts in the Audi rear lights and brake lights category.

If you are considering broader use of proven used parts in premium class cars and want to better understand how to safely service luxury segment cars while maintaining high quality, it is worth reading the article Luxury within reach – how to service a Porsche brand legend using proven used parts, which discusses a practical approach to selecting components from disassembly.