Mercedes C238 Window Lifter Rear Right O/S Regulator Mechanism Motor A2386700400

Mercedes C238 Window Lifter Rear Right O/S Regulator Mechanism Motor is an original component from the Window regulators and motors group, designed for precise operation of the rear passenger-side window. It ensures stable window guidance, proper power transmission, and correct integration with the vehicle's electrical system.

Specifications and technical data

• SKU: A2386700400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2386700400
• Substitutable numbers: A2386700400, A 238 670 04 00
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented component is responsible for the electric raising and lowering of the rear right window in the C238 body style. The integrated guide mechanism, along with the electric motor, works with the factory window control system, ensuring smooth window movement and proper closing within the range specified by the manufacturer.

Placement on the vehicle: rear – right side, which allows for unambiguous identification of the component when planning repairs or replacing a specific regulator in the rear passenger door.

Construction and technical advantages

The window lifter consists of a complete mechanical system connected to an electric drive, which allows for direct installation in the door without the need for additional component adaptation. The design is matched to the factory mounting points in the body, which facilitates service work and reduces replacement time.

Key technical advantages include:

• Original Mercedes design – compliance with factory manufacturing standards.
• Precise window guidance, reducing the risk of jamming and uneven movement.
• Integration of the mechanism and motor into a single assembly, which simplifies diagnostics and installation.
• Compatibility with the vehicle's factory window control system.

Condition and service application

The item comes from the used parts group, making it an attractive solution for repairs where an optimal cost-to-functionality ratio is important. This type of lifter is suitable both for replacing a damaged mechanism after a collision and for resolving operational faults related to the rear right window's performance.

Due to its factory origin, the part is suitable for workshops specializing in the Mercedes brand as well as for users looking for a compatible OEM replacement without the need to use universal solutions.

Mercedes Window regulators and motors – expansion and modernization

If you are planning a comprehensive repair or modernization of the door and window area in your Mercedes and need other elements from the same group, such as window lifting mechanisms, control motors, or complete guide assemblies, check out the available parts in the Mercedes Window regulators and motors category.

Technical support and service knowledge

When planning repairs of electrical and mechanical systems in premium class cars, it is worth using reliable sources of knowledge. For a comparison of typical operational problems in another popular mid-size model, you can refer to an article describing critical power units – you can find it here: Faulty BMW E90 engines – a practical guide to costly failures. This will allow you to better understand the importance of using appropriate OEM parts in daily vehicle operation.