Mercedes-Benz A W168 Rear Right Door O/S Window Regulator Lifter A1687301446

Mercedes-Benz A W168 Rear Right Door O/S Window Regulator Lifter is an original component from the Window regulators and motors group, designed for installation on the rear right side of the vehicle body. It ensures stable window guidance, proper operation of the lifting and lowering mechanism, and maintains the factory functionality of the doors in the Mercedes A-Class W168 model.

Specifications and technical data

• SKU: A1687301446
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1687301446
• Substitutable numbers: A1687301446, A 168 730 14 46, EM
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented window regulator is dedicated to the rear right side of the body in the Mercedes A-Class W168 generation. It is responsible for the precise guidance of the window in the tracks and the transmission of power from the control mechanism, which translates into smooth and repeatable operation of the entire system.

This component is particularly important in cases of issues such as: window jamming, uneven lifting, the window dropping while driving, or noticeable play in the mechanism. Replacing it with a functional unit allows for the restoration of door operation comfort and proper sealing of the side of the vehicle body.

Benefits of using an original regulator

Using an original window regulator in the Mercedes W168 ensures:

• preservation of the factory geometry of the window guidance in the door,
• compatibility with existing door equipment,
• appropriate structural rigidity and operational stability over a long service life,
• reduction of the risk of additional noise, vibrations, and leaks.

Thanks to this, replacing a damaged element with an original component from the same design group is a technically safe and predictable solution. This is especially important for mechanisms responsible for the sealing and comfort of the cabin.

Installation characteristics

The regulator is designed for installation in the rear right part of the body, which facilitates clear identification of the vehicle side when planning repairs. The design is prepared to work with the factory window control system in the door, so that after correct installation, it is possible to restore standard functionality without the need for installation modifications.

Before installation, it is recommended to verify compatibility by OEM number or interchangeable numbers and to compare the mounting geometry with the removed part. This approach minimizes the risk of mismatch and shortens the time of the service operation itself.

Condition and cost-effectiveness

The offered item comes from the segment of used original parts, which allows for combining reasonable repair costs with maintaining a design consistent with the factory Mercedes project. For many users, this is a beneficial alternative to cheaper replacements of uncertain durability.

If you are considering broader service cost optimization using aftermarket components, it is worth checking out an expert guide describing facts and myths about used drivetrain components: Why it is worth buying used gearboxes and engines – facts instead of myths. Although it mainly concerns power units, the principles of selection by numbers and cost-effectiveness assessment presented there can also be applied to other parts groups.

Additionally, when making a decision between new and used window system components, a guide comparing the costs and quality of different solutions may be helpful: New or used? A comparison of the costs and quality of car parts. This is a practical source of knowledge when planning a repair budget.

Related Mercedes Window regulators and motors

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