Mercedes W166 Rear Window Lifter Regulator Motor Right O/S Panel A1667300279

Mercedes W166 Rear Window Lifter Regulator Motor Right O/S Panel is an original component from the Window regulators and motors group, designed for operating the rear right window in the W166 body style. This used motor ensures a factory-spec fit, stable operation of the window lifting mechanism, and maintains full functionality of the door panel controls.

Specifications and technical data

• SKU: A1667300279
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1667300279
• Substitutable numbers: A1667300279, A 166 730 02 79
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented window lifter motor is dedicated for installation in the rear right section of the vehicle, where it is responsible for driving the window lifting and lowering mechanism. The component works in conjunction with the door control panel, allowing for smooth adjustment of the window position from inside the vehicle.

The vehicle placement defined as rear – right side allows for clear identification of the correct mounting point and reduces the risk of errors when selecting a component for a specific door position.

Benefits of using an original motor

Using an original window lifter motor in a Mercedes W166 results in:

• maintaining proper compatibility with the factory electrical system and window controls,
• appropriate operating characteristics of the lifting mechanism, without jerking or unwanted noises,
• consistency with factory comfort and safety features, if present in the vehicle.

Thanks to this, replacing a damaged drive with an original element from the same group allows for restoring full window functionality without the need for system modifications or the use of additional adapters.

Installation characteristics

The window lifter motor is structurally prepared to work in the factory door system of the Mercedes W166 on the rear right side. Appropriate mounting points and an electrical connector matched to the vehicle's wiring facilitate installation and reduce the time required to replace the component.

When selecting parts, it is worth paying attention to compliance with the manufacturer's markings and the assigned vehicle placement, which helps avoid compatibility issues and ensures the correct operation of the entire window lifting system.

Mercedes window regulators and motors – expansion and service

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 window drives, control modules, or complete lifting mechanisms, check out the available parts in the Mercedes window regulators and motors category.

Support in choosing a used component

Choosing a used component for the window system is a reasonable way to reduce repair costs while maintaining the original manufacturer's specifications. To better understand the differences between refurbished and used parts, as well as to consciously plan your repair budget, it is worth reading the practical tips contained in the article Refurbished or used original – which part to choose for repairs?.

Additionally, if you are interested in the broader context of operation and potential service costs in premium class vehicles, the guide BMW E90 faulty engines: check what can ruin your budget! may be helpful, as it shows how the proper selection of parts affects long-term expenses related to vehicle maintenance.