Mercedes CLS W219 Window Lifter Front Door Left N/S Regulator Motor A2198200542

The Left Front Window Regulator with Motor for Mercedes CLS W219 is an original part from the Window Regulators and Motors category, designed for precise operation in the driver's door. It ensures stable window guidance and reliable electric drive, translating into convenient operation and proper window sealing in daily use. Thanks to its factory-designed construction dedicated to the CLS W219, this component maintains the correct mechanism geometry and proper integration with the vehicle's electrical system.

Specifications and technical data

• SKU: A2197200946-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2197200946
• Substitutable numbers: A2197200946, A 219 720 09 46, A2198200542, A 219 820 05 42
• Location on the vehicle: Front, Left
• Category: Window Motors & Regulators

Intended Use and Fitment for Mercedes CLS W219

The presented window regulator is a complete assembly with a motor, installed in the front left door of the Mercedes CLS W219 generation. The construction has been developed specifically for this model, meaning correct mounting points, appropriate length of guide cables, and a compatible electrical connector for the motor. This allows for installation without bodywork or electrical modifications, and the entire system maintains factory operating parameters.

Construction and Function of the Window Lifting Mechanism

The regulator mechanism is responsible for the smooth guidance of the window in its tracks and for transferring torque from the motor to the vertical movement of the window. This assembly works with the factory comfort control system, enabling:

• stable lifting and lowering of the window without jamming,
• maintaining proper window pressure against the seals,
• correct cooperation with comfort opening and closing functions, if present in the vehicle.

A properly selected window regulator and motor is crucial for bodywork sealing, reducing cabin noise, and protecting the interior from moisture.

Advantages of Using an Original Used Part

An original window regulator with a motor, sourced from a dismantled vehicle, retains the factory construction and operating parameters intended by the vehicle manufacturer. In practice, this means:

• secure fitment to the door and window guides in the CLS W219,
• compatibility with the electrical system and comfort controllers,
• no need for mechanical or electrical adaptation.

Compared to inexpensive aftermarket replacements, a used original part often provides more stable long-term operation, which is particularly important for heavily used window mechanisms.

Professional Selection by Part Numbers and Integration with Other Components

To select the correct window regulator for a specific equipment version, it is advisable to use the OEM part number and available interchangeable numbers. This helps avoid compatibility issues, especially with differences arising from the production year or equipment version. Other key components, such as engines or transmissions, are selected in a similar manner – this is described in more detail in the expert guide: Why Buy Used Gearboxes and Engines – Facts Instead of Myths.

Comprehensive Purchasing and Other Mercedes Window Regulators and Motors

If you are planning a more extensive repair of the window system in your Mercedes and wish to select other mechanisms and window drives for the remaining doors in one place, check the available parts in the Mercedes Window Regulators and Motors category.

For larger bodywork and interior equipment repairs, consider purchasing using the one-stop-shop model, which allows you to assemble many original used parts in a single order – from large components to small mounting details. The principles of this approach and its cost benefits are described in the article: Comprehensive Sourcing: From Engine to the Smallest Clip.