VW Golf Mk5 Rear Boot Lid Tailgate Light Bulb Holder Socket Left N/S 1K6945257

VW Volkswagen Golf Mk5 Rear Left Bulb Socket is an electrical system component responsible for securely holding bulbs and ensuring a reliable connection to the driver's side rear lamp harness. Thanks to its factory design for the Golf Mk5, it ensures proper functioning of the rear lighting and maintains compatibility with the original Volkswagen electrical system. This is a practical solution for collision repairs, replacing a damaged lamp, or addressing intermittent light issues.

Specifications and technical data

• SKU: 1K6945257
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 1K6945257
• Substitutable numbers: 1K6945257, 1K6 945 257
• Location on the vehicle: Rear, Left
• Category: Sockets, Connectors & Wiring

Bulb Socket Purpose and Function

The presented bulb socket is intended for the left rear lamp in the Volkswagen Golf Mk5 model. It is responsible for:

• mechanically holding the bulbs in the correct position within the lamp,
• ensuring a stable electrical contact with the vehicle's wiring harness,
• transmitting signals to individual lighting functions such as the parking light, brake light, or turn signal (depending on the lamp configuration).

Due to its specific fit for the car model, the socket works with the original wiring harness and lamp construction, which facilitates installation and reduces the risk of compatibility issues.

Construction from the Wires, Plugs, and Connectors Group

This component belongs to the Wires, Plugs, and Connectors group, which comprises components responsible for reliable connections in the vehicle's electrical system. In practice, this means the socket:

• is designed to work with the appropriate plug of the rear lamp harness,
• allows for quick disconnection and reconnection during servicing or lamp replacement,
• minimizes the risk of loose connections that could cause flickering or intermittent lighting.

Such a solution is particularly important in daily operation, where the vehicle is exposed to vibrations, temperature changes, and humidity.

Benefits of Using an Original Volkswagen Part

Using a socket dedicated to the Volkswagen Golf Mk5 allows for maintaining the electrical system's consistency with the manufacturer's original specifications. Key benefits include:

• Proper fit for the lamp and bodywork – no need for modifications, adapter fabrication, or harness adjustments.
• Reduced risk of electrical system errors – correct contact placement and manufacturer-designed connection geometry.
• Easier future diagnostics – service technicians work with a system that is consistent with original Volkswagen solutions.

This solution is suitable for both post-accident repairs and troubleshooting unstable rear lighting performance.

Vehicle Placement and Service Application

The socket is designed for installation in the vehicle's rear left lamp, clearly defining its position in the car and eliminating the risk of errors when selecting the side. In practice, it is used in situations where:

• the lamp or its interior has suffered mechanical damage,
• there are issues with contact corrosion and intermittent lighting,
• the socket itself needs replacement without the need to purchase a complete lamp.

This allows for reduced repair costs while maintaining the correct operation of the rear lighting system.

Component Condition and Practical Installation Tips

The offered bulb socket is a used part, allowing for an economical repair while maintaining compatibility with the original Volkswagen construction. Before installation, it is advisable to:

• check the condition of the electrical contacts and clean them with an appropriate product if necessary,
• verify that the vehicle's wiring harness has no mechanical damage or signs of overheating,
• ensure that the rear lamp is sealed to limit the socket's renewed exposure to moisture.

This approach enhances the durability of the repair and helps prevent the recurrence of lighting-related faults.

If you are planning a comprehensive repair or upgrade of the rear lighting area in your Volkswagen and need other parts from the same group, such as harnesses, connectors, or adapters, check the available parts in the Volkswagen Wires, Plugs, and Connectors category.

For drivers interested in broader diagnostics of diesel engine vehicles, an article describing the symptoms and consequences of fuel system problems may be helpful, available here: Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails.