Volkswagen Passat B6 Rear Door Wiring Adapter Cable Left Right N/O/S 3C4971689K

Volkswagen Passat B6 Rear Door Wiring Adapter Cable Left Right is an original electrical installation component designed for the rear doors of this model. The adapter ensures a stable connection between the vehicle's main wiring harness and the cables leading to the door components, which translates into reliable operation of the electrics and electronics in the rear part of the body. It is a practical service solution for users who want to restore the proper functioning of factory door features without using random substitutes.

Specifications and technical data

• SKU: 3C4971689K
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3C4971689K
• Substitutable numbers: 3C4971689K, 3C4 971 689 K
• Location on the vehicle: Rear, Right, Left
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the adapter

The rear door wiring adapter in the Passat B6 is responsible for connecting power and signal cables between the body and the doors. This component operates in the area of the movable door hinge, which is why it must ensure stable signal transmission during repeated opening and closing. Thanks to its precisely selected design, the adapter supports the correct operation of systems such as window controls, central locking, or door lighting, in accordance with Volkswagen's factory electrical configuration.

Vehicle placement and configuration

The presented adapter is designed for installation in the rear part of the vehicle and can be used on both the left and right sides. This solution simplifies part selection during repairs, as one type of adapter can handle both sides of the body within the rear door area. Using the correct component from the Wires, harnesses, and connectors group allows for maintaining consistency with the factory service documentation and reduces the risk of connector compatibility issues.

Benefits of using the original adapter

Choosing the original wiring adapter for the Passat B6 is a solution that technically aligns with the vehicle manufacturer's specifications. You receive a component designed for a specific model, with appropriately selected cable lengths, connector types, and routing geometry. In practice, this means:

• easier installation in factory mounting points,
• secure fit of connectors to the existing installation,
• reduced risk of malfunctions resulting from improper wire splicing,
• preservation of the vehicle's original electrical architecture.

For many users, it is also important that using original electrical installation components helps maintain the vehicle's consistency with service documentation, which can be an asset when reselling the car.

Characteristics of the used component

The adapter comes from dismantling, making it a reasonable compromise between repair costs and maintaining the vehicle's original specifications. A used electrical installation component, coming from the same model segment, allows for restoring system efficiency without the need to interfere with factory diagrams. This is a practical solution for workshops and individual users who value technically correct fitment and the possibility of quick installation without modifying the wiring harness.

Volkswagen wires, harnesses, and connectors – expansion and repair of the installation

If you are planning a comprehensive repair or upgrade of the door zone in your Volkswagen and need other elements from the same group, such as wire sections, additional harnesses, or service connectors, check out the available parts in the Volkswagen wires, harnesses, and connectors category.

How used parts affect the car's value

When selecting electrical installation components, it is worth considering not only the current repair cost but also the impact of the chosen solutions on the vehicle's future valuation. Original components, even from the secondary market, often better meet buyers' expectations than random substitutes. If you want to learn more about how to consciously choose used components while taking care of the car's future value, see the article Original used parts vs. resale price – how not to lose money?.