Mercedes W177 Moulding Trim Water Deflector Right O/S Roof Rail A1776903000

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W177 Moulding Trim Water Deflector Right O/S Roof Rail is an original body component designed for the right side of the windshield in W177 series models. This precisely shaped moulding provides an aesthetic finish to the edge of the glass and ensures stable seal guidance, which translates into driving comfort and a cohesive body appearance. This solution is particularly recommended when replacing the windshield or repairing the front part of the bodywork.

Specifications and technical data

• SKU: A1776903000
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1776903000
• Substitutable numbers: A1776903000, A 177 690 30 00
• Location on the vehicle: Right
• Category: Other Exterior Parts & Accessories

Purpose and function of the moulding

The described moulding is tailored to the Mercedes W177 body structure on the right side in the windshield area. Its task is to adhere precisely to the edge of the glass and work with the sealing elements, which helps limit the ingress of contaminants and contributes to proper water drainage from this zone. Thanks to its factory profile, the moulding maintains a body line consistent with the manufacturer's design.

Construction and body fitment

The geometry of the moulding has been developed for the specific body shape, which facilitates installation and ensures repeatable fitment with the glass and adjacent body panels. Original Mercedes branding means compatibility with factory mounting points and appropriate component rigidity, which is essential for long-term use. The moulding operates in an area exposed to temperature changes and weather conditions, which is why proper fitment is important for both visual and functional reasons.

Vehicle placement and installation aspects

The component is intended for installation on the right side of the windshield, along its edge. Such placement requires maintaining the correct sequence of work during the removal and installation of the glass to avoid stress on the glass or the moulding itself. In practice, installation involves seating the moulding in the designated mounting points and checking the fit along its entire length so that no gaps are created that could cause wind noise while driving.

Use of the used moulding in service and repairs

Choosing a used body component is often a rational solution for accident repairs or replacing individual components in the windshield area. This allows for maintaining stylistic consistency with the rest of the body parts while reducing costs compared to purchasing a new component. In the case of the windshield moulding, it is crucial that it retains its correct shape and the ability to be mounted stably – thanks to this, it can continue to perform its function in the vehicle.

Integration with other body elements and technical knowledge

The moulding works in the immediate vicinity of the glass, cowl, and hood elements, so when planning repairs in this area, it is worth considering the entire geometry of the front body section. For those interested in deepening their knowledge about the structural differences between standard and sports versions, including the impact of changes in the body and chassis on operation, the following article may be helpful: Audi RS vs other models – what is hidden under the hood and chassis?.

If you are planning a comprehensive repair or upgrade of the body area in your Mercedes and need other elements from the same group, such as additional mouldings, covers, or small finishing components, check the available parts in the Other Mercedes category.