Mercedes W176 Electric Window Lifter Regulator Rear Right Door O/S A1767304400

Mercedes W176 Electric Window Lifter Regulator Rear Right Door O/S is an original component from the Window regulators and motors group, designed for the rear right window in the W176 body style. This solution allows you to restore the proper operation of the electric window lift, ensuring stable window guidance and predictable system performance.

Specifications and technical data

• SKU: A1767304400-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1767304400
• Substitutable numbers: A1767304400, A 176 730 44 00
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The mechanism is designed to operate in the rear right section of the body, where it is responsible for transferring power from the window control system to the guides and the side window. Thanks to its precise fit for the W176 door structure, it maintains the correct window movement geometry, which reduces the risk of jamming, misalignment, and excessive play.

As a component in the Window regulators and motors category, the lifter works with the factory electrical installation and window control, enabling smooth opening and closing of the window from the door switch or the driver's panel (depending on the vehicle configuration).

Benefits of using an original mechanism

Using an original solution dedicated to the W176 allows you to maintain the factory operating parameters of the window system. Proper fitment to the door and guides translates into:

• stable window movement throughout the full range of operation,
• reduced load on the lifter motor,
• reduced noise and vibration during raising and lowering of the window,
• proper cooperation with factory comfort control systems.

For the user, this means more predictable operation and a lower risk of needing further door repairs after replacing the component.

Installation characteristics

The mechanism is prepared for installation in the rear right part of the body, in accordance with the factory mounting layout in the door. The design intended for a specific model facilitates service work – the mounting points and guide geometry are matched to the original holes and the shape of the door panel.

When replacing, it is recommended to:

• check the condition of the window guides and door seals,
• verify the correct operation of the window control switch after installation,
• verify that the window moves without resistance throughout its entire range.

Condition and selection of the correct part

The offered item is in used condition, which allows for an economical repair while maintaining the original design intended by the vehicle manufacturer. Before purchasing, it is worth verifying compatibility with the specific equipment version and vehicle year based on the manufacturer's markings and vehicle data.

In case of doubt during selection, using the OEM number or interchangeable numbers, as well as comparing the shape and mounting points with the currently installed component, can be helpful.

Technical support and additional information

If you are planning a comprehensive repair or upgrade of the door and window area in your Mercedes and need other components from the same group, such as guides, control motors, or complete window lifting modules, check the available parts in the Mercedes Window regulators and motors category.

When selecting parts by manufacturer numbers and analyzing the cost-effectiveness of repairs versus purchasing new components, our expert guide on our blog will be helpful: Why it is worth buying used gearboxes and engines – facts instead of myths. You will find practical tips there regarding working with OEM numbers, verification procedures, and cost calculations, which can be analogously applied when choosing other used subassemblies.