Door Module Mercedes W169 W245 Front Left N/S Control Unit A1699000300

Visual condition of the part

The product shows signs of use visible in the photos.

Door Module Mercedes W169 W245 Front Left N/S Control Unit is a factory-original component from the Electronic control modules and controllers category, designed to manage driver-side door functions in Mercedes compact class vehicles. This used module ensures the preservation of the vehicle's original electrical architecture, which facilitates diagnostics, servicing, and subsequent operation. It is a practical solution for workshops and users who want to restore full door functionality without interfering with the wiring.

Specifications and technical data

• SKU: A1699000300-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1699000300
• Substitutable numbers: A1699000300, A 169 900 03 00
• Location on the vehicle: Front, Left
• Category: ECUs & Computer Modules

Purpose and function of the door module

The front left door module is responsible for controlling key functions in the driver's door area, such as power windows, central locking, or mirrors, depending on the specific vehicle configuration. As a component integrated into the car's electrical network, it communicates with other body controllers, ensuring consistent operation of comfort systems.

The vehicle placement defined as front – left side allows for clear identification of the installation area and minimizes the risk of errors when selecting parts. This makes the module the right choice when replacing a faulty controller in the driver's door of Mercedes W169 and W245 models.

Benefits of using an original Mercedes module

Choosing an original door module dedicated to specific Mercedes models allows you to maintain compatibility with the factory electrical installation and the logic of comfort systems. A controller from the same family as the factory-fitted component facilitates:

• maintaining proper communication with other body controllers,
• reducing issues with fault memory errors,
• ensuring predictable operation of door functions after replacement.

For workshops and service centers specializing in the Mercedes brand, this is a solution that allows for efficient repair without the need for wiring modifications or the use of replacement solutions with uncertain compatibility.

Application in service practice

Door Module Mercedes W169 W245 Front Left N/S Control Unit will prove useful both for typical replacement of a faulty controller and for more extensive work related to body electronics. Thanks to its precisely defined placement on the vehicle, it easily fits into the existing door assembly layout, which shortens the mechanic's working time and reduces the risk of installation errors.

The component from the Electronic control modules and controllers category is particularly important where maintaining stable communication within the vehicle network and proper operation of comfort functions is required. A properly selected door module allows for the restoration of full control functionality without the need to interfere with other components.

Selection, compatibility, and used electronics

When selecting a door module for a specific vehicle, it is worth paying attention to compatibility with the car's equipment and electrical configuration. Matching by part numbers and vehicle data is helpful, which allows you to avoid communication issues in the network and incorrect operation of door functions.

If you want to better understand how to safely choose used controllers and other body electronics components, including door modules, it is worth using the practical Global Parts guide – check the material: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

Expanding repairs within Mercedes control modules

If you are planning a comprehensive repair or upgrade of the body electronics area in your Mercedes and need other components from the same group, such as comfort controllers, passenger door modules, or additional window controllers, check the available parts in the Mercedes electronic control modules and controllers category.