Mercedes W176 Seat Motor Front Right O/S Adjustment Drive Actuator 0390204078

Mercedes W176 Seat Motor Front Right O/S Adjustment Drive Actuator is a precision component of the seat adjustment system, designed for installation on the front right side of Mercedes vehicles. It enables efficient control of the passenger seat position, improving ergonomics, comfort, and safety while driving. Thanks to its factory design, it serves as a functional service solution for users looking for a reliable, used component.

Specifications and technical data

• SKU: 0390204078
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: 0390204078
• Substitutable numbers: 0390204078, 0 390 204 078, P1-14274-03, P11427403, P1122280409, P1-12228-04-09
• Location on the vehicle: Front, Right
• Category: Additional Seat Parts

Purpose and function in the vehicle

The seat motor is responsible for driving the seat adjustment mechanism on the front passenger side. Its task is to ensure smooth movement or repositioning of selected seat sections, in accordance with the configuration used in a given Mercedes W176 model. A properly functioning drive translates into the convenience of adjusting the seating position and the ability to precisely tailor the seat to the user's height and preferences.

This element works with the seat control system, transferring torque to the gears and rails. The proper operation of the motor is important both for comfort and for maintaining the full functionality of the interior equipment, especially in vehicles that are heavily used.

Compatibility and fitment

The Mercedes W176 Seat Motor Front Right O/S Adjustment Drive Actuator has been designed as a part compliant with the manufacturer's factory standards. This means it matches in terms of:

• mounting geometry and installation method within the seat structure,
• type of electrical connector and compatibility with the vehicle's wiring,
• direction of operation and range of motion required for the front right side.

Thanks to this, the element can be used as a replacement for a damaged drive in the passenger seat, without the need for modifications to the wiring or interference with the seat structure. Factory fitment reduces the risk of installation problems and minimizes the time required to perform the repair.

Characteristics of the used component

The offered motor comes from the Other seat parts category and is a used item, which allows for an economical repair of the seat adjustment system while maintaining the original design. This type of solution is particularly beneficial for vehicles used on a daily basis, where a reasonable service cost is important while maintaining proper functionality.

A used component is a good solution for workshops and individual users who want to restore the efficiency of the seat mechanism without investing in a complete, new system. Original Mercedes origin helps maintain technical consistency with other interior elements.

Practical application and benefits of installation

Installing a functional seat motor on the front right side allows you to:

• restore full passenger seat adjustment after a drive failure,
• increase travel comfort thanks to the ability to precisely set the seating position,
• maintain interior functionality at a level consistent with the factory specification of the Mercedes W176,
• reduce repair costs by using a used, original element.

For workshops specializing in the Mercedes brand, such a component is a practical addition to the service offer, allowing for the quick completion of orders related to the seat system.

Choosing a used part and additional information

When choosing a used seat motor, it is worth paying attention to compatibility with the specific equipment version and the adjustment system used in the given vehicle. Both manufacturer markings and interchangeable numbers assigned to this reference can be helpful. In case of doubt, a good solution is to compare the design with the element currently installed in the car.

If you want to better understand the differences between new and used components and make an informed decision about how to repair the seat system, it is worth reading the guide on our blog: Car parts – new or used? We compare costs, quality, and durability. The article discusses financial aspects, durability, and practical tips regarding the choice of appropriate replacement elements.

If you are planning a comprehensive repair or modernization of the seating area in your Mercedes and need other elements from the same group, such as rails, adjustment mechanisms, or additional drives, check the available parts in the Other Mercedes seat parts category.