Mercedes W246 Rear Door Card Mount Left N/S Electric Window Lifter Regulator

Mercedes W246 Rear Door Card Mount Left N/S Electric Window Lifter Regulator is an original window lifting mechanism component designed for the rear left side of the vehicle body. This used part from the Mercedes range allows for restoring the proper operation of the side window without the need for low-quality aftermarket replacements. It is a solution for users expecting a solid construction and a perfect fit for the factory door mounting points.

Specifications and technical data

• SKU: A2467300179-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2467300179
• Substitutable numbers: A2467300179, A 246 730 01 79
• Location on the vehicle: Rear, Left
• Category: Door Panels

Purpose and function of the window regulator

The window regulator in the W246 model is responsible for stable guidance and smooth movement of the window in the rear left door. A correctly selected component ensures:

• proper positioning of the window in the guides,
• smooth raising and lowering without jamming,
• reduction of play, rattling, and vibrations within the door area,
• compatibility with the vehicle's factory electric control system.

By maintaining the original mounting geometry, the regulator is perfectly matched to the door structure, which facilitates service and reduces the risk of leaks or improper window closing.

Benefits of using an original Mercedes component

Choosing a window regulator dedicated to the W246 allows you to maintain the technical integrity of the door system. The original design ensures compatibility with factory mounting points and proper interaction with other door components, such as seals, guides, or upholstery.

The main advantages of using this solution include:

• secure fit for the rear left side of the vehicle without the need for modifications,
• preservation of the window's operating range as intended by the manufacturer,
• reduction of the risk of premature wear of the window and seals,
• easier diagnostics of potential future faults.

The used component allows for an economical repair while maintaining the vehicle's original technical specifications.

Integration with door upholstery and installation

The regulator works with components from the Door Upholstery group, forming a complete door module on the rear left side. A correctly installed mechanism does not interfere with the fitment of the door trim, which is important for both aesthetics and interior acoustics.

During installation, it is worth paying attention to:

• correct alignment of the mechanism relative to the door frame,
• checking the window operation across the full range of motion after reassembling the upholstery,
• verifying the tightness and pressure of the window against the seals after closing.

This approach helps maintain comfort and reduce wind noise while driving.

Application in the rear left body zone

The placement on the vehicle in the rear left body section means that the regulator is structurally matched to the geometry of these specific doors. Dedicated design minimizes the risk of incorrect part selection and facilitates service work, especially when replacing a single mechanism without interfering with the other doors.

This solution is particularly beneficial for repairs following mechanical damage, wear of the guides, or window drive failure.

If you are planning a comprehensive repair or upgrade of the door zone in your Mercedes and need other elements from the same group, such as linings, panels, or door cards, check the available parts in the Mercedes Door Upholstery category.

For more practical information on how to effectively use used body parts and maintain the vehicle's aesthetics, see the article Replacing body parts with used ones – can salvaged body parts look like new?.