Mercedes GLE W166 Rear Door Window Regulator Lifter Left N/S A1667308901

Mercedes GLE W166 Rear Door Window Regulator Lifter Left N/S is an original component from the Window regulators and motors group, designed for installation in the rear left door of Mercedes vehicles. It ensures stable, smooth, and safe operation of the window lifting mechanism, restoring full functionality to the rear passenger side window control.

Specifications and technical data

• SKU: A1667308901
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1667308901
• Substitutable numbers: A1667308901, A 166 730 89 01
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and function of the window regulator

The presented window regulator is dedicated to the rear left side of the body in the Mercedes GLE W166 generation. It is responsible for the precise guidance of the window in the tracks and for transferring the drive from the control system to the glass, which allows for convenient opening and closing of the window from the door panel or the driver's console.

Thanks to its perfect fit to the door structure, this component ensures:

• stable window guidance without excessive play,
• proper cooperation with the factory control system,
• correct operating geometry throughout the entire range of window movement.

Benefits of using an original Mercedes component

The window regulator designed for the Mercedes GLE W166 has been engineered for the specific door structure, which translates into an excellent fit with factory mounts. Using an original solution allows you to avoid problems typical of aftermarket replacements, such as incorrect window positioning, excessive load on the mechanism, or noisy operation.

Key advantages of this solution include:

• compatibility with the factory window control system,
• preservation of the original operating characteristics of the mechanism,
• easier installation thanks to the mounting points provided by the manufacturer.

Vehicle placement and installation aspects

The component is intended for installation in the rear left part of the body, within the passenger door. Such vehicle placement allows for unambiguous identification of the installation side and reduces the risk of error when selecting parts. The regulator works with the factory glass and original guides, which facilitates the replacement process in workshop conditions.

During installation, it is recommended to:

• check the condition of the guides and window seals,
• verify the correct operation of the mechanism after initially tightening the mounts,
• test the full range of window movement after completing the installation.

Product characteristics and practical application

The rear left door window regulator in the Mercedes GLE W166 is a part from the Window regulators and motors category, which means it is responsible for a key aspect of vehicle comfort – efficient window control. The product comes from a Mercedes vehicle, ensuring compliance with factory construction and electrical standards.

It will work well both for typical repairs after a mechanism failure and for restoring full door functionality after operational damage. The used nature of the part allows for an economical restoration of the system's efficiency while maintaining the original technical specifications.

Expanding the Mercedes window control system

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

Technical knowledge and vehicle operation

When working with electrical and mechanical systems in modern cars, it is worth knowing the typical weak points of individual models. This applies not only to window mechanisms but also to power units and engine accessories. For comparison, in popular models of other brands, such as the BMW 3 Series, certain engine versions are particularly sensitive to maintenance neglect and can generate high repair costs.

If you are interested in a broader context of operation and potential faults in premium class vehicles, it is worth reading the material describing critical power units – you will find it in the article Faulty BMW E90 engines: check what can ruin your budget!.