Mercedes W205 C238 X253 W213 Inner Firewall Contact Support A2055457540

The Mercedes W205 C238 X253 W213 Bulkhead Connector Socket is a specialized component from the Electronic Control Units and Controllers group, designed for use in Mercedes vehicle electrical systems. It enables safe and organized routing of electrical harnesses through the bulkhead, ensuring a stable connection between the engine bay and the vehicle's interior. This solution is dedicated to users who expect precise fitment for a specific model platform.

Specifications and technical data

• SKU: A2055457540
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055457540
• Substitutable numbers: A2055457540, A 205 545 75 40
• Category: ECUs & Computer Modules

Purpose and Function in Vehicle Installation

The described bulkhead connector socket acts as an intermediary between the engine bay harness and the cabin installation, which is crucial for the proper functioning of electronic systems. In Mercedes C-Class, E-Class, and selected SUV models, it serves as a stable connector that:

• organizes the routing of wires in the bulkhead area,
• reduces the risk of mechanical damage to harnesses,
• supports maintaining the seal of the bulkhead between the engine bay and the interior,
• ensures proper operating conditions for components within the controllers and electronic modules group.

This allows the vehicle's control and monitoring systems to operate in a stable environment, and provides easier access for servicing key connections.

Benefits of Using an Original Bulkhead Connector Socket

The use of a dedicated socket in the bulkhead area translates into a number of practical operational benefits. Specifically:

• Appropriate Geometry and Mounting – the component is designed for a specific body architecture, which facilitates installation and minimizes stress on the harnesses.
• Stable Electrical Contacts – a correctly selected connector reduces the risk of voltage drops and interference in the operation of control modules.
• Improved Installation Organization – passing through the bulkhead at one designed point simplifies diagnostics and potential service work.
• The ability to maintain the factory wiring route, which is important when working with advanced electronic systems.

Component Characteristics and Practical Application

The bulkhead connector socket from this series works with the vehicle's installation as intended by the manufacturer, which is significant for the complex electronics of modern Mercedes vehicles. In practice, this means that it:

• allows for compliance with the factory wiring and controller layout,
• facilitates the localization of potential circuit breaks in the bulkhead area,
• promotes clarity of the installation during subsequent modifications or repairs.

The component from the Electronic Control Units and Controllers group is particularly important in vehicles with a large number of sensors, controllers, and comfort modules that require a stable connection between the engine bay and the interior.

Condition, Selection, and Installation Aspects

The offered socket is a used component, which allows for economical restoration of the electrical system's functionality while maintaining the original manufacturer's specifications. Before installation, it is recommended to:

• verify compatibility with the specific body version and vehicle year,
• check the condition of the contacts and seals at the bulkhead passage point,
• install in the position intended by the design, maintaining the harness routing according to the factory path.

This approach reduces the risk of subsequent problems with access to the connector and minimizes the possibility of interference in the operation of control modules.

Support in Selecting Electronics and Related Components

When working with components from the controllers and connectors group, it is advisable to use methodical selection based on manufacturer markings and vehicle configuration. A detailed discussion of the principles for selecting used electronics, including modules and sensors, can be found in the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?. The article explains, among other things, issues of compatibility, interpretation of markings, and practical aspects of installation.

If you are planning a comprehensive repair or upgrade of the electrical system area in your Mercedes and need other components from the same group, such as connectors, control modules, or body controllers, check the available parts in the Mercedes Electronic Control Units and Controllers category.