Mercedes W205 Window Regulator Bracket Mount Holder Front Left N/S A2057226300

Mercedes W205 Window Regulator Bracket Mount Holder Front Left is an original component from the Window Regulators and Motors group, designed for operation in the front left section of the vehicle body. Engineered to meet the structural requirements of the Mercedes W205, it ensures stable guidance of the window mechanism and proper interaction with the factory regulator, which translates into smooth, predictable operation of the entire system.

Specifications and technical data

• SKU: A2057226300
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2057226300
• Substitutable numbers: A2057226300, A 205 722 63 00
• Location on the vehicle: Front, Left
• Category: Window Motors & Regulators

Purpose and technical function

The presented bracket is a component used for mounting the window lifting mechanism in the front left door of the vehicle. It is responsible for:

• stable attachment of the window regulator to the door structure,
• maintaining the correct geometry of the window guidance,
• reducing unwanted play and vibrations during mechanism operation. Thanks to its fitment for the specific W205 body generation, the bracket works with the factory rail and mounting system, which facilitates installation and helps maintain factory window performance parameters.

Benefits of using an original bracket

Using a dedicated window regulator bracket mount for the Mercedes W205 helps reduce the risk of problems typical of aftermarket replacements with universal geometry. A properly selected component:

• ensures repeatable window positioning relative to the seals,
• reduces the load on the regulator mechanism and motor,
• simplifies service – mounting points are consistent with factory solutions. This is a practical solution when replacing a damaged mount after a mechanical failure or bodywork repairs in the area of the front left door. Precise fitment to the door structure helps avoid the need for re-removing the door panel and making installation adjustments.

Installation characteristics

The bracket is designed for installation in the front left part of the vehicle, in the driver or passenger door area depending on the market. The design provides for cooperation with the factory window regulator and original mounting points in the door shell. In practice, this means:

• the possibility of installation in place of a worn or damaged component without structural modifications,
• preservation of factory window movement kinematics,
• easier diagnostics of potential faults in the window lifting system. Proper positioning on the vehicle is crucial for the correct operation of the entire mechanism, which is why it is worth using components consistent with the axial application (front/left side).

Component condition and operational aspects

The product comes from dismantling and is offered as a used part, which is a reasonable compromise between repair costs and maintaining the original technical specification. For components from the Window Regulators and Motors group, choosing original components from the secondary market often allows for maintaining high window operating standards at lower costs than in the case of new parts. For users planning more extensive work on window mechanisms in a Mercedes W205, using a consistent set of original components (brackets, rails, mounts) facilitates subsequent adjustment and reduces the risk of premature wear of the regulator.

Repair expansion and selection of other components

If you are planning a comprehensive repair or upgrade of the door area and window mechanisms in your Mercedes and need other components from the same group, such as rails, regulator motors, or complete window mechanisms, check the available parts in the Mercedes Window Regulators and Motors category. When selecting components from the secondary market, it is worth following not only OEM markings but also the procedure for matching them to the specific body version and equipment. Helpful tips regarding working with used drive components, how to verify their condition, and cost-effectiveness calculations can be found in the article: Why it is worth buying used gearboxes and engines – facts instead of myths. If you prioritize the conscious use of dismantled parts in your garage and want to better understand the impact of such decisions on service costs and the environment, also check out the guide Circular economy in your garage – how choosing used parts from dismantling really supports environmental protection and your wallet?, which discusses the practical aspects of using second-hand components in modern cars.