Mercedes W245 Rear Door Window Lifter Regulator Right O/S A1697301679

Mercedes W245 Rear Door Window Lifter Regulator Right O/S is an original component from the Window regulators and motors group, designed for the rear right window in Mercedes B-Class W245 models. It enables stable, smooth window operation and proper integration with the factory control system, which translates into daily comfort and the correct functioning of the electric window lift.

Specifications and technical data

• SKU: A1697303879-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1697303879
• Substitutable numbers: A1697303879, A 169 730 38 79, A1697301679, A 169 730 16 79
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented window regulator is dedicated to installation in the rear right part of the body, in the passenger door. It is responsible for the mechanical guidance of the window and the transmission of drive from the electric motor to the glass, ensuring even raising and lowering without jamming or excessive play.

Thanks to a design consistent with Mercedes factory standards, the component works with the original door equipment, maintaining the correct geometry of the guides and mounting points. This is particularly important for maintaining door sealing and eliminating unwanted vibrations and noise while driving.

Construction and fitment for Mercedes W245

The window regulator has been designed specifically for the door architecture of the Mercedes B-Class W245. The placement of mounts, the shape of the guides, and the method of connection to the glass are adapted to the factory door panel, which facilitates installation and reduces the need for additional modifications.

Such fitment allows for:

• maintaining the correct window travel path throughout the entire range of motion,
• proper alignment with seals and the door frame,
• stable cooperation with the factory window motor.

As a result, the regulator serves as a functional replacement for the factory component, allowing for the restoration of full efficiency of the window mechanism on the rear right side.

Operational characteristics and advantages of the solution

As a component from the Window regulators and motors group, the regulator is responsible for comfortable one-touch window operation without the need for manual force. A properly functioning mechanism:

• ensures smooth window movement without jerking,
• reduces the risk of jamming and system overload,
• helps avoid excessive load on the control motor.

A properly selected rear right window regulator is important not only for passenger comfort but also for protecting the interior from moisture and noise, as correct window operation facilitates full closure and maintains airtightness.

Condition, origin, and installation aspects

The offered regulator is a used part, sourced from dismantling, which allows for maintaining the factory design specifications characteristic of the Mercedes brand. This type of solution is often chosen when servicing older W245 units, where compatibility with original equipment and rational repair costs are prioritized.

Before installation, it is recommended to perform a standard verification of the mechanism and ensure the correct positioning of the glass in the guides to fully utilize the component's capabilities and ensure long-term, stable operation of the window lifting system in the rear right part of the vehicle.

Selection by part numbers and technical support

When selecting a window regulator for a specific Mercedes W245, it is worth using the OEM number and interchangeable numbers visible in the technical specification. This facilitates unambiguous identification of the part and minimizes the risk of purchasing a component with a different design variant.

For users who want to deepen their knowledge about selecting components by catalog numbers and optimizing repair costs, an expert guide on our blog may be helpful: Why it is worth buying used gearboxes and engines – facts instead of myths. Although it mainly concerns powertrains, the principles of analyzing OEM numbers and the approach to used parts described there are also useful when choosing other subassemblies.

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 lifting mechanisms, control motors, or window guides, check the available parts in the Window regulators and motors Mercedes category.