BMW F74 Gran Coupé Rear Door Window Cavity Trim Seal Inner Right O/S 5A5CC18

BMW F74 Gran Coupé Rear Door Window Cavity Trim Seal Inner Right O/S is a precision body component designed for the rear right door window in BMW Gran Coupé series models. It is responsible for providing a tight seal for the window, reducing wind noise, and protecting the interior from water and debris, while simultaneously providing an aesthetic finish to the door edge. Thanks to its factory geometry and fitment, this original window trim seal allows for a technically correct repair without interfering with the door structure.

Specifications and technical data

• SKU: 5A5CC18
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A5CC18
• Substitutable numbers: 51355A5CC18, 5A5CC18
• Location on the vehicle: Rear, Right
• Part type: Inner Beltline Seal
• Category: Window Seals, Gaskets & Trims

Purpose and function in the BMW Gran Coupé body

The described window trim seal is a component from the Window seals and trims group, designed specifically for the rear right door area of the Gran Coupé body. Its functions include:

• sealing the contact point between the window and the door frame in the rear right part of the vehicle,
• stable window guidance during raising and lowering,
• limiting the ingress of water, dust, and dirt into the door interior,
• reducing wind noise at higher speeds. Due to its dedicated placement on the vehicle, the component works with the factory window lifting mechanism and other door seals, maintaining the structural integrity of the entire side glazing.

Benefits of using an original BMW seal

Choosing an original window trim seal for the BMW Gran Coupé allows you to maintain factory sealing and acoustic parameters. The design, matched to the specific body zone, translates into:

• proper window adhesion along the entire length of the door edge,
• lower risk of window fogging resulting from leaks,
• stable operation of the lifting mechanism without additional resistance,
• aesthetic finish of the side body line, consistent with the BMW design. The element from this group is particularly important after body and paint repairs, window replacement, or when leaks and increased noise appear in the rear part of the cabin.

Installation characteristics and application for the rear right side

The window trim seal intended for installation in the rear right part of the vehicle has been designed for the specific dimensions of the BMW Gran Coupé door frame. Proper profiling allows for:

• precise seating in factory mounting points,
• cooperation with existing glass and guides,
• maintaining even pressure along the entire length of the edge. Thanks to this, after correct installation, you can restore the original comfort of using the rear seat, reducing noise and drafts in the area of the rear right window.

Component condition and use in vehicle service

The offered window trim seal comes from dismantling and is a used component, which is a cost-effective solution while maintaining the original BMW specification. This type of component is particularly useful in situations where:

• the original seal has suffered mechanical damage (cracks, deformations),
• there are leaks in the rear right part of the body,
• after door repair, it is necessary to restore factory window guidance. Selecting the right element from this group helps avoid problems with window closing and excessive cabin noise, which is important both in daily operation and when reselling the vehicle.

Complementary BMW window seals and trims

If you are planning a comprehensive repair or upgrade of the side window area in your BMW and need other elements from the same group, such as additional guide seals, trim strips, or door frame seals, check the available parts in the BMW window seals and trims category.

Technical knowledge and preparation for further repairs

When working on the body and preparing the car for further operation, it is also worth paying attention to other components, especially in the context of seasonal inspections. Practical tips on selecting used components and preparing the car for harsher conditions can be found in the article: Winter essentials: which used car parts are worth checking and replacing before the frost? If you are simultaneously working on the engine fuel system and considering using parts from dismantling, helpful information on the safe selection of components can be found in the entry: Fuel dosing problems: what to look for when buying a used injection pump and fuel rails?