Mercedes W221 Rear Left N/S Door Window Guide Frame Trim Cover A2217350325

The Mercedes W221 Door Seal Window Guide Left Rear is a precise body component from the Doors and Door Panels group, designed for the rear left part of the vehicle. It ensures a tight window seal, stabilizes its movement, and limits the penetration of noise and moisture into the cabin. Its black color facilitates aesthetic matching with the factory door finish.

Specifications and technical data

• SKU: A2217350325
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217350325
• Substitutable numbers: A2217350325, A 221 735 03 25
• Location on the vehicle: Rear, Left
• Color: Black
• Category: Doors & Door Skins

Purpose and Function of the Component

The frame seal and window guide in the rear left part of the body are responsible for the proper guidance of the window in its tracks and maintaining adequate door sealing. A correctly selected component:

• stabilizes the window during raising and lowering,
• reduces vibrations and unwanted play in the window mechanism,
• creates a barrier against water, dust, and air drafts,
• contributes to acoustic comfort inside the vehicle.

The black, neutral color scheme allows for a consistent look of the door edges and harmoniously blends with the factory body seals.

Compatibility and Body Fitment

The component is designed for a specific body model, ensuring its geometry is tailored to the rear left door frame. The appropriate profile of the seal and guide:

• facilitates installation in original mounting points,
• ensures proper adhesion to the door edge and window,
• minimizes the risk of leaks after replacing a worn-out part.

Such a fit promotes the preservation of the window mechanism's original operating parameters and the vehicle's user comfort.

Visual and Material Characteristics

The black color of the seal and guide is standard for this part of the body, allowing for discreet integration into the door line. These types of components are designed to operate in varying weather conditions, with frequent contact with moisture, UV radiation, and road contaminants. This allows them to retain their functional properties for a long time, provided they are correctly installed and operated.

Condition and Service Application

This product is a used part, removed from a vehicle, and intended for service applications in vehicles where the original window frame seal and guide have become worn, damaged, or deformed. Replacing this component is recommended in situations where:

• increased noise is present around the rear left window,
• there are problems with the smooth movement of the window in its tracks,
• there are signs of leaks or water ingress into the door.

Selecting parts based on the vehicle manufacturer's designations and placement parameters on the vehicle helps reduce the risk of improper fit.

Assistance with Selection and Scope of Work Expansion

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and require other components from the same group, such as panels, reinforcements, or additional sealing profiles, check the available parts in the Mercedes Doors and Door Panels category.

When selecting used body components, it is advisable to refer to the manufacturer's designations and the vehicle's placement. For users who wish to streamline the purchasing and verification process, the guide Safe Online Purchase of Used Car Parts – A Step-by-Step Guide may be helpful, describing practical principles for selecting parts by manufacturer numbers and product groups.