Seat Leon Mk3 Rear Tail Light Lamp Outer Left N/S Harness Wire Cable 5F0945207F

Seat Leon Mk3 Rear Tail Light Lamp Outer Left N/S Harness Wire Cable is an original component from the Electronic control modules and controllers group, designed for installation in the rear left part of the vehicle body. It allows for the restoration of proper rear lighting operation and ensures a stable electrical connection thanks to the dedicated wiring harness, maintaining factory safety and functionality standards.

Specifications and technical data

• SKU: 5F0945207F-2
• Mark: Seat
• Condition: Used
• OEM Part Number: 5F0945207F
• Substitutable numbers: 5F0945207F, 5F0 945 207 F
• Location on the vehicle: Rear, Left
• Category: ECUs & Computer Modules

Purpose and function in the vehicle

The presented rear tail light outer left with wiring harness has been designed specifically for installation in the rear left section of the Seat Leon Mk3 body. The component is responsible for the vehicle's correct light signaling (position lights, brake lights, turn signals – depending on the installation configuration of the specific unit), and the integrated wiring harness ensures a secure connection to the car's electrical system.

Thanks to its factory design and fitment for the specific model, the installation process is straightforward, without the need for modifications to the wiring or the use of adapters. This solution is particularly beneficial for post-accident repairs or when replacing a damaged lighting module.

Electronics and integration with the vehicle's system

As a component from the Electronic control modules and controllers group, the lamp with wiring harness works with the vehicle's lighting control system, maintaining the parameters specified by the manufacturer. Properly selected connectors and wire cross-sections minimize the risk of voltage drops, communication errors with body modules, and the appearance of light failure messages on the instrument cluster.

The original design ensures:

• a stable electrical connection with the vehicle's system,
• correct positioning of light points within the lens,
• compliance with factory lighting control parameters.

Installation and operational characteristics

The rear tail light outer left with wiring harness is intended for installation in a specific location on the body, which facilitates service work and reduces the risk of installation errors. Thanks to the factory fitment to the body shape, the seal with the car body is maintained, as is the correct stylistic line of the rear part of the vehicle.

The used product allows for an economical repair while maintaining the original build quality. This is a practical solution for users who want to restore full lighting functionality without the need to invest in a new component.

Why choose an original lamp with a wiring harness

Choosing an original rear tail light outer left with wiring harness for the Seat Leon Mk3 primarily ensures compatibility with the electrical system and the maintenance of factory operating parameters. Proper fitment to the body reduces the risk of leaks and moisture ingress, while the correct geometry of the lens affects the visibility of light signals for other road users.

Additionally, the use of a dedicated wiring harness reduces the risk of connector overheating, accidental short circuits, or problems with lighting system diagnostics, which translates into stable vehicle operation in daily use.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Seat and need other components from the same group, such as light control modules, body controllers, or wiring harnesses, check the available parts in the Electronic control modules and controllers Seat category.

To better assess when choosing a used electronic component is justified and how to safely select components such as control modules or harnesses, it is worth reading the guide: The second life of electronics – when is it worth opting for used engine controllers, comfort modules, and parking sensors?.