Mercedes W169 Window Lifter Rear Left Door N/S Electric Window Regulator

Mercedes W169 Window Lifter Rear Left Door N/S Electric Window Regulator is an original component from the Window regulators and motors group, designed for operating the rear left window in the A-Class body. The used window lifter ensures a factory-fit to the door system, maintaining the correct window guidance geometry and stable operation of the mechanism. It is a practical solution for drivers who want to restore the efficiency of the electric window control without interfering with the door structure.

Specifications and technical data

• SKU: A1697303379-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1697303379
• Substitutable numbers: A1697303379, A 169 730 33 79, A1697301379, A 169 730 13 79, BG
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and vehicle placement

The window lifter has been designed specifically for installation in the rear left part of the body, in the passenger door area. The dedicated placement on the vehicle: rear – left side means that the geometry of the guides, mounting points, and the operating range of the mechanism are adapted exclusively to this area of the body. Thanks to this, the component works with the factory window glass, seals, and electrical installation without the need for modifications.

Technical and functional characteristics

As a part from the Window regulators and motors group, the window lifter is responsible for the smooth raising and lowering of the window in the rear left door. The design intended for an electric system allows control from the driver's panel or the passenger door button, maintaining the appropriate movement speed and stable guidance of the window in the tracks.

The original origin from the Mercedes brand helps maintain the proper rigidity of the entire module, which reduces the risk of play, noise, or misalignment of the window during operation. The mechanism is prepared to work with the factory mounting points in the door, which facilitates service installation and shortens repair time.

Benefits of using an original window lifter

Using a dedicated window lifter in the rear left part of the body allows for restoring full functionality of the electric window control without compromises in terms of fitment. The main advantages include:

• maintaining the factory geometry of the window guidance in the rear left door,
• compatibility with the original electrical installation and cabin controls,
• installation in existing mounting points without the need for adaptation,
• consistency with other components of the window system in the Mercedes A-Class W169 series model.

Thanks to this solution, it is possible to effectively eliminate problems with the window jamming, lack of response to buttons, or uneven movement in the guides, while maintaining a design consistent with the manufacturer's specifications.

Condition of the component and service application

The window lifter is offered as a used part, which provides a cost-effective alternative to new components while maintaining the original installation specification. This type of component will work well both for typical maintenance repairs after a mechanism failure and for restoring the completeness of the door equipment after mechanical damage.

Choosing an original window lifter for a Mercedes allows you to maintain the technical consistency of the entire window opening system, which is important for the comfort of using the vehicle and proper cooperation with other control modules in the car.

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

Substantive support and part selection

When planning repairs within the bodywork and window control systems, it is worth considering the general technical condition of the vehicle and potential service costs in other areas. It may be helpful to read expert materials regarding typical engine failures and their impact on the operating budget – this topic is discussed more broadly in the article BMW E90 engine failures: check what can ruin your budget!, which shows how a conscious approach to service allows for better planning of expenses, including work on the window system and interior equipment.