Mercedes-Benz A B W169 W245 Front Right Door Control Unit Module A1699000200

The Mercedes W169 W245 Front Right Door Module is a specialized component from the Electronic Control Modules and Controllers group, responsible for managing the functions of the passenger-side door. This solution is designed for users who want to restore the functionality of the door's electrical systems in a controlled manner, while maintaining the original operating logic and compatibility with the Mercedes vehicle's wiring.

Specifications and technical data

• SKU: A1699000200
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1699000200
• Substitutable numbers: A1699000200, A 169 900 02 00, EM
• Location on the vehicle: Front, Right
• Category: ECUs & Computer Modules

Module Purpose and Function

The presented module is dedicated for installation in the front right door of W169 and W245 series vehicles. As a component located in the front – right side area, it interfaces with the vehicle's body electrical system, controlling selected door functions according to the specific car's configuration.

The module operates within the vehicle's network as a local controller, communicating with other electronic units. This ensures consistent operation of comfort and safety systems without the need to modify the main wiring harness.

Benefits of Using an Original Door Module

Using an original door module in a Mercedes W169 or W245 maintains compliance with the vehicle's original electrical architecture. In practice, this means:

• preserving the manufacturer-intended control logic for the passenger-side door,
• consistent communication with other body controllers,
• reducing the risk of diagnostic errors resulting from incorrect part selection,
• enabling standard service procedures using factory diagnostic tools.

For workshops and private users, this translates to a more predictable repair process and easier verification of correct operation after installation.

Vehicle Placement and Installation Aspects

The module is designed for installation in the front right door area. This precise vehicle placement simplifies selecting the correct component during repairs, especially when the vehicle has several similar controllers with similar functions.

When selecting a part, it is worth paying attention to:

• vehicle generation compatibility (W169 / W245),
• designation for the front right side,
• belonging to the door controller group to ensure proper interaction with the electrical system.

This approach minimizes the risk of communication issues within the vehicle network and facilitates subsequent diagnostics.

Product Characteristics and Used Part Application

The offered module belongs to the Electronic Control Modules and Controllers group, meaning it acts as an active element of the electrical system, not just a passive connector. As a used part, it offers a sensible compromise between repair cost and maintaining the vehicle's original specifications, especially for older generations of everyday Mercedes vehicles.

If you are considering whether a new part, an aftermarket replacement, or a salvaged part would be a better choice in a given situation, the following article comparing different solutions may be helpful: check when it's worthwhile to choose original, replacement, or used car parts. This will help you choose a service strategy tailored to your budget and the expected remaining lifespan of the car.

Integration with Other Electronic Modules

The front right door module in the Mercedes W169/W245 collaborates with other body controllers, forming a cohesive system for managing comfort functions. In modern vehicles, similar solutions are also found in other brands, where door controllers, comfort modules, or multimedia units create an extensive electronic network. If you are interested in a broader context of operating and repairing such systems, it is worth familiarizing yourself with material describing work with modules in other cars: see how to care for electronic systems and control modules using salvaged parts.

By understanding the role of individual controllers, it becomes easier to plan diagnostics, select the appropriate part, and assess which installation elements may require additional verification when replacing the door module.