VW Golf CD1 Front Door Right O/S Driver Side Module Control Unit ECU 5Q0959593L

VW Golf CD1 Front Door Right O/S Driver Side Module Control Unit ECU is an original electronic driver door controller designed for installation in the front right section of the vehicle body. As a component from the Electronic control modules and controllers category, it is responsible for precise management of door functions, ensuring stable communication with the vehicle's electrical system. This used OEM component from Volkswagen is a sensible choice for professional repairs or replacing a faulty controller.

Specifications and technical data

• SKU: 5Q0959593L
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5Q0959593L
• Substitutable numbers: 5Q0959593L, 5Q0 959 593 L
• Location on the vehicle: Front, Right
• Category: ECUs & Computer Modules

Purpose and function of the module

The presented controller is dedicated to operating the front right door in Volkswagen vehicles, including the driver's side zone on the exterior. Its task is to integrate and control the operation of components located in the door, such as actuators, switches, or comfort features, in accordance with the specific configuration of the vehicle.

Placement in the front – right side area allows for a direct connection to the door wiring harness and the vehicle's communication bus, which translates into fast system response and consistent operation with other body modules.

Benefits of using an original Volkswagen module

Using an original Volkswagen controller from the Electronic control modules and controllers category ensures:

• factory fitment to the vehicle's electrical installation and network architecture,
• consistency of operating parameters with other body controllers,
• preservation of the comfort and safety functions intended by the manufacturer,
• possibility of diagnostics using standard VAG service tools.

Thanks to this, the module is a practical solution both for typical repairs and for replacing a damaged element with a proven OEM component.

Condition, installation, and service aspects

The offered controller is a used item, which allows for a significant reduction in repair costs while maintaining the original manufacturer's specifications. Before installation, a standard service procedure is recommended: checking the connectors, verifying the door wiring harness, and checking the correctness of communication with the vehicle network after installation.

The module is intended for installation in the factory location in the front door on the right side. In most cases, the installation is plug-and-play, however, the final scope of work (e.g., potential coding) depends on the equipment configuration of the specific car.

Selection by numbers and compatibility

When selecting a controller for a specific VW Golf, it is crucial to compare the markings with the vehicle documentation or the existing module. In case of doubt, it is worth using the OEM number and the interchangeable numbers visible in the product's technical specification to ensure that the controller will work with the given version of the electrical installation and software.

If you want to better understand the principles of selecting used body controllers, hardware and software compatibility issues, and good installation practices, check out our guide: used automotive electronics – why second-hand ECU modules and sensors are a sensible choice.

Expanding the control system in Volkswagen

If you are planning a comprehensive repair or upgrade of the electrical/comfort zone in your Volkswagen and need other elements from the same group, such as body controllers, comfort modules, or window and lock management units, check the available parts in the Volkswagen electronic control modules and controllers category.