VW Volkswagen Caddy III 1.6 TDI CAYD 102HP Engine Control ECU 03L907425C Manual

VW Volkswagen Caddy III 1.6 TDI CAYD 102HP Engine Control ECU Manual is an original engine control unit from the Electronic control modules and controllers group, designed for diesel units paired with a manual transmission. This used module ensures factory-standard engine performance characteristics while maintaining compatibility with the vehicle's electrical architecture and diesel injection system parameters.

Specifications and technical data

• SKU: 03L907425C-2
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 03L907425C
• Substitutable numbers: 03L907425C, 03L 907 425 C, 5WP42902AA, 5WP42902 AA
• Fuel type: Diesel
• Gearbox type: Manual
• Part type: Engine Control Unit (ECU)
• Color: Blue
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented engine control unit is dedicated to the diesel powertrain in the Caddy III model, specifically for versions with a manual transmission. It is responsible for precise management of the 1.6 TDI unit, including fuel dose control, synchronization with engine sensors, and communication with other electronic modules in the vehicle. This enables the maintenance of stable operating parameters, correct throttle response, and proper communication within the vehicle's network.

Benefits of using an original Volkswagen module

Using an original Volkswagen controller allows for consistency with the factory vehicle configuration, which facilitates adaptation and reduces the risk of communication issues within the data bus. A module from the same reference family enables proper matching to the specific engine version and software, which is crucial for diagnostics, coding, and subsequent service maintenance.

A used controller with intact OEM structure is a cost-effective solution that is technically matched to the factory diesel engine equipment and manual transmission. For workshops and users, this means the ability to restore the efficiency of the engine control system without the need for invasive modifications or the use of universal solutions.

Operational parameters and configuration

The module is prepared for operation in a system fueled by Diesel, which translates into appropriate injection map characteristics, system pressure control, and cooperation with equipment typical for diesel units. Being designed for a vehicle with a manual transmission ensures compatibility with torque management logic and functions related to gearbox operation.

The blue housing facilitates visual identification of the module in the engine bay or wiring harness, which is helpful during service and diagnostic work. The product belongs to the Electronic control modules and controllers group, meaning it is a central element for managing engine operation and requires proper configuration during installation.

Condition, origin, and practical application

The controller is offered as a used item, which in practice means it has been dismantled and previously operated in a vehicle. For workshops specializing in automotive electronics, it provides a solid base for further configuration, programming, or adaptation to a specific Caddy III unit with a 1.6 TDI engine. A properly selected module allows for the restoration of full engine control system functionality following the failure of the original unit.

To facilitate identification in warehouse systems, the product has an SKU designation, as well as an assigned OEM part number and corresponding interchangeable numbers, which allows for verifying compatibility with a specific vehicle configuration before installation.

Selection of other modules and service knowledge

If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other components from the same group, such as engine controllers, comfort modules, or other electronic control units, check the available parts in the Volkswagen electronic control modules and controllers category.

When working with vehicle electronics, up-to-date knowledge regarding programming and adaptation procedures is also useful. It is worth checking out material describing a practical approach to repairing control modules, such as the guide on iDrive systems and electronic modules in BMW using dismantled parts, which shows how to effectively use used electronic components in modern cars.