Window Lifter Regulator Mercedes W176 Rear Left N/S Door Card Panel A1767303800

The Mercedes W176 Window Regulator Mechanism Rear Left is a factory part from the Window Regulators and Motors category, designed for the rear left window in W176 series models. The original design ensures proper window guidance geometry, stable mechanism operation, and predictable performance during daily use. This is a solution for users who expect a proven component that aligns with factory specifications.

Specifications and technical data

• SKU: A1767303800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1767303800
• Substitutable numbers: A1767303800, A 176 730 38 00, BG
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and Body Fitment

The mechanism is specifically designed for installation in the rear left part of the W176 series body, guaranteeing correct positioning relative to the door, guides, and seals. This allows the window to move smoothly through its full range, without excessive stress or the risk of misalignment. Proper fitment to the door structure reduces noise, improves sealing, and facilitates precise adjustment during installation.

Window Regulator Mechanism Construction

The window regulator utilizes factory solutions employed by Mercedes in this generation of vehicles, which translates to predictable operational characteristics. The guide and cable system is designed to ensure even load distribution across the entire height of the window. The implemented mechanical architecture works with the original control motor from the same product line, facilitating integration with the electrical system and comfort features.

Benefits of Using an Original Mechanism

Using the original window regulator mechanism for the rear left window of the W176 allows for the preservation of factory operating parameters for the window system. Key benefits include:

• Stable Window Movement – reduced risk of jamming and uneven lifting.
• Proper fitment with doors and seals, contributing to cabin airtightness.
• Compatibility with factory mounting points, simplifying installation and servicing.
• Predictable interaction with the comfort control system for opening and closing windows.

Application in Repairs and Diagnostics

The rear left window regulator mechanism in the W176 is often replaced when symptoms such as slow window operation, stopping midway, unusual noises from inside the door, or no response to switch commands occur. Replacing the complete mechanism is the preferred solution when adjustment or partial repair does not yield a lasting effect. Combined with proper electrical system diagnostics, it allows for the restoration of full functionality to the rear driver's side window.

Mercedes Window Regulators and Motors – Selection and Alternatives

If you are looking for other parts in the Window Regulators and Motors category for this brand's vehicles, check out the Mercedes window regulators and motors available in our store to select a component that matches your specific body configuration and equipment.

Why Choose Used OEM Parts

For components like window regulator mechanisms, used original parts often offer a favorable cost-to-durability ratio while maintaining factory operating parameters. For a broader perspective on the cost-effectiveness of using used components, it is worth reading the article Why Buy Used Gearboxes and Engines – Facts Instead of Myths, which discusses the practical aspects of selecting parts by manufacturer codes and real-world savings in operation.

Additionally, if you are interested in the broader context of original component quality, we recommend the expert material OEM Quality and Safety Guarantee – Why Used Original Car Parts Are the Best Choice for Your Car?, which discusses the importance of OEM components for vehicle system safety and durability.