Mercedes-Benz W204 Front Left N/S Passenger Seat Switch Control Unit A2048204310

Mercedes-Benz W204 Front Left N/S Passenger Seat Switch Control Unit is an original component from the Switches, control elements and ignition locks group, designed for installation in the front passenger seat area. This practical solution allows for precise control of seat settings, restoring full functionality of the seat adjustment system in your Mercedes.

Specifications and technical data

• SKU: A2048204310
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048204310
• Substitutable numbers: A2048204310, BG
• Location on the vehicle: Front, Left
• Category: Switches & Controls

Application and vehicle function

This control unit is designed for installation in the front – left side of the cabin area, in the immediate vicinity of the passenger seat. It is responsible for operating the electric seat adjustments, enabling directional movement, tilt adjustment, and comfortable seat positioning to suit the user's needs. Thanks to its proper fitment to the W204 interior electrical system, consistency with other comfort systems is maintained.

The component was designed specifically for the Mercedes brand, which translates into a proper fit with the upholstery and the side seat console, as well as correct cooperation with the factory wiring harness. This solution is particularly useful when troubleshooting issues related to the seat not responding to commands from the control panel.

Construction and fitment for Mercedes-Benz W204

The passenger seat control switch is structurally adapted to the W204 interior architecture, both in terms of shape and mounting method. The button layout allows for intuitive operation, and the ergonomic placement of control elements makes it easy to use the adjustments even while driving. This ensures a consistent, factory-original look for the side of the seat.

The original control unit from this series is compatible with factory electrical connectors, which facilitates installation and reduces the risk of connection errors. In practice, this means the possibility of replacing a damaged panel without the need to modify wiring or use additional adapters.

Condition, origin and benefits of choosing a used part

The offered component comes from the used original parts segment, which allows you to combine reasonable repair costs with maintaining factory specifications. Compared to non-factory replacements, the original switch ensures a better fit to the interior and predictable behavior in the vehicle's electrical system.

Choosing such a solution is particularly beneficial when you want to maintain the consistency of the cabin equipment, preserve the original appearance of the side seat panels, and avoid compatibility issues. A used, fully functional control unit allows you to quickly restore full passenger seat adjustment functionality without interfering with the seat structure.

Installation and technical aspects

The switch is intended for installation in the factory location on the front left passenger seat, using the original mounting points. Installation involves mechanically seating the panel in the side of the seat and connecting it to the existing electrical harness. Thanks to the maintenance of the factory connector standard, the replacement process is straightforward and can be performed in a workshop environment without additional modifications.

Before installation, it is recommended to verify compatibility with the vehicle based on the OEM part number and available interchangeable numbers, which minimizes the risk of selecting the wrong module. Additionally, comparing the shape of the housing and the button layout with the currently installed element may be helpful.

Control system expansion and additional resources

If you are planning a comprehensive repair or upgrade of the cockpit area and control panels in your Mercedes and need other components from the same group, such as button panels, control modules, or ignition locks, check out the available parts in the Mercedes switches, control elements and ignition locks category.

During service work on the vehicle, it is also worth ensuring the efficiency of the braking system – the guide article Second-hand braking system: how to safely choose discs, calipers, and ABS? will help you in selecting used components, where you will find a practical checklist useful when shopping at used parts stores.