Mercedes-Benz A-Class W176 Rear Left Right N/O/S Door Seal Gasket A1766920176

Mercedes W176 Door Seal Rear Left Right is an original part from the door seals category, designed for installation on the rear left or right side of the body. The black color of the seal ensures a consistent look with the factory finish, and the precisely fitted profile helps to reduce noise, vibrations, and moisture ingress into the vehicle's interior.

Specifications and technical data

• SKU: A1766920176
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1766920176
• Substitutable numbers: A1766920176, A 176 692 01 76
• Location on the vehicle: Rear, Right, Left
• Color: Black
• Category: Door Seals

Vehicle Application and Placement

The seal is designed for installation on the rear left or right door, allowing for flexible use of the part in body repairs. The design, tailored to the door lines of the W176 model, facilitates correct positioning on the flange and ensures even pressure around the entire perimeter.

The black color matches the typical factory finish, so the seal does not stand out visually against other body elements and maintains a cohesive look for the door edges.

Technical and Functional Characteristics

The seal belongs to the door seals category, meaning its primary function is to limit the ingress of water, dust, and external noise into the cabin. The appropriately profiled cross-section works with the door frame and body, improving:

• the sealing of the connection between the door and the body,
• acoustic comfort inside the vehicle,
• protection against corrosion in the area of sills and pillars,
• door closing stability during daily use.

As a part originating from a vehicle, the seal retains its factory shape and geometry, which promotes proper fitting with the original doors and reduces the need for additional adjustments during installation.

Condition of the Part and Benefits of Using a Used Part

The product is offered as a used part, allowing for economical repairs while maintaining the original manufacturer's specifications. In many cases, using a dismantled seal is beneficial, as the part retains its factory flexibility and shape tailored to the specific body model.

Choosing a used seal for the rear left or right side can be particularly cost-effective for local repairs after a collision, replacing individual doors, or restoring sealing after bodywork and paint interventions.

Installation and Practical Service Tips

The rear door seal for the W176 model is designed for installation in the factory location, utilizing the original edge and guide around the door perimeter. When replacing it, pay attention to:

• thorough cleaning of the contact surface from old seal residue and dirt,
• checking the condition of the door edges and sills for corrosion,
• even seating of the seal along its entire length, without twists or kinks,
• checking door closing after installation and making any necessary adjustments to its position.

A correctly installed seal contributes to acoustic comfort and reduces the risk of water ingress into the interior, which is important for the durability of upholstery, door electrical systems, and sill components.

Mercedes Door Seals – Selection and Offer

If you also need other Mercedes door seals for your car, check out our dedicated category: Mercedes door seals. This will allow you to easily compare available parts for different positions on the vehicle and select a set suitable for your specific body configuration.

Interior Comfort and Seal Condition

Functional door seals have a direct impact on thermal and acoustic comfort in the cabin, especially in conjunction with the heating and air conditioning system. If you want to better plan maintenance work related to improving interior comfort, check out our guide: air conditioning and heating – part selection and maintenance for year-round comfort, where you will find practical tips on operating and selecting OEM components.