Mercedes W204 C207 W212 Front Rear Door Inner Rubber Cover Cap Plug A1109870544

Mercedes W204 C207 W212 Front Rear Door Inner Rubber Cover Cap Plug is an original body component designed to factory-mask technological openings in the front and rear doors. Thanks to its precise fit to the Mercedes door structure, the plug ensures a tight seal of the opening, improving the protection of the door interior against moisture and contaminants. It is a practical solution for users who want to maintain the structural and aesthetic consistency of the door panel in their vehicle.

Specifications and technical data

• SKU: A1109870544
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1109870544
• Substitutable numbers: A1109870544, A 110 987 05 44
• Location on the vehicle: Front, Rear
• Category: Additional Wiper & Washer Components

Purpose and function of the component

The door opening plug in Mercedes W204, C207, and W212 models serves as a technical seal for service openings in the door panel. These openings are used during the production and service stages, and their proper sealing is essential for:

• limiting the ingress of water and dirt into the door interior,
• stabilizing airflow inside the door structure,
• maintaining the correct operation of lock mechanisms, window regulators, and guides,
• preserving the factory rigidity and tightness of the panel.

The component is intended for both the front and rear door areas, which facilitates selection and allows for consistent application throughout the side of the bodywork.

Construction and body fitment

The plug has been designed as an original part, compatible with the door structure of selected Mercedes models. The shape and mounting profile are adapted to the factory technological opening, which allows for stable seating without the need for modifications. As a result, installation is predictable, and the risk of leaks after replacement is minimized.

Precise fitment with the door panel translates into:

• secure holding in the mounting socket,
• lack of play and minimization of unwanted vibrations,
• maintaining a uniform surface on the inner side of the door.

Vehicle placement and service application

The plug is intended for installation in the front and rear areas of the vehicle, in the doors on both sides of the body, depending on the configuration of the specific unit. It is particularly useful in situations where:

• the original plug was damaged or removed during bodywork or paint repairs,
• it is necessary to replace missing mounting elements after a door replacement,
• you want to restore the factory completeness of the door structure in a used car.

Properly sealing technological openings is also important from the perspective of long-term anti-corrosion protection, as it limits the accumulation of moisture in areas critical to the door structure.

Product characteristics and condition

The offered plug belongs to the Other wiper parts group, although its actual application concerns the door and side panel area. The product comes from dismantling, which means it is a used component that retains the functionality required for further operation. This type of part is a good choice when you want to maintain the original vehicle specification while optimizing repair costs.

Because it is an OEM component, you can count on dimensional and mounting compatibility with the factory solution used in your Mercedes, without the need to adapt universal replacements.

Complementary elements and technical advice

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other elements from the same group, such as covers, mounts, or additional masking elements, check out the available parts in the Other Mercedes wiper parts category.

When working on doors and bodywork, the topic of drivetrain noise often arises, which is why it is worth reading practical tips on selecting used drivetrain components – you will find them in the article Humming differential? Find out why a used OEM drive axle is a better investment than an uncertain replacement.

Summary

Mercedes W204 C207 W212 Front Rear Door Inner Rubber Cover Cap Plug is a practical, original element designed to restore the completeness and tightness of the door structure in your car. Thanks to its fit to factory technological openings and its application in both front and rear doors, the part will work well both for a single repair and for broader body service work. By choosing an original plug, you gain mounting consistency with other door components and predictable performance during long-term use.