Mercedes-Benz E-Class W211 Tunnel Rear Sound Insulation Panel A2116823601

Mercedes-Benz E-Class W211 Tunnel Rear Sound Insulation Panel is an original body component designed for installation in the rear section of the vehicle. Engineered by Mercedes, it ensures structural consistency with the factory body layout and helps reduce the transmission of noise and vibrations from the rear chassis area. As such, it serves as a functional addition to the factory acoustic insulation system in the E-Class W211.

Specifications and technical data

• SKU: A2116823601
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2116823601
• Substitutable numbers: A2116823601, A 211 682 36 01, BG
• Location on the vehicle: Rear
• Category: Splash Guards & Mud Flaps

Purpose and function of the component

The described tunnel rear sound insulation panel is dedicated to the Mercedes-Benz E-Class W211 generation model and operates in the rear part of the body. Its task is to limit noise originating from the chassis and reduce vibrations transmitted to the passenger cabin. A properly selected component of this type improves acoustic comfort, stabilizes the tunnel structure, and helps protect adjacent components from contaminants.

Benefits of using an original sound insulation panel

Using an original tunnel rear sound insulation panel in a Mercedes-Benz E-Class W211 allows for maintaining factory fitment and predictable body behavior. Key advantages include:

• precise fit with the tunnel structure in the rear of the vehicle,
• stable mounting, reducing unwanted resonances and rattling,
• preservation of the interior acoustic characteristics designed by the manufacturer,
• compatibility with factory mounting points and adjacent covers.

As a result, the panel can be used both when replacing a damaged component and during work related to restoring the original acoustic insulation in the rear zone.

Mounting characteristics and application in the rear of the vehicle

The component is designed for installation in the rear area, meaning it works with the structure of the tunnel running along the vehicle floor. Proper positioning of the panel relative to the body is important for sealing and noise suppression effectiveness. A correctly installed sound insulation panel helps limit the penetration of sounds from the suspension, drivetrain, and road surface into the cabin.

When selecting the part, it is worth verifying compatibility with the specific W211 body version and comparing the geometry of the component with the currently installed panel, which facilitates trouble-free replacement.

Component condition and service application

The offered tunnel rear sound insulation panel is a used part, making it an attractive solution for servicing vehicles used on a daily basis. This type of component is suitable for:

• post-accident repairs in the rear body section,
• restoring missing or damaged insulation elements,
• restoration work on E-Class W211 vehicles.

Choosing an original, used panel allows for maintaining structural consistency with other tunnel components and keeping acoustic comfort at a level close to the factory standard.

Related components and expanding the scope of work

If you are planning a comprehensive repair or upgrade of the rear body zone in your Mercedes and need other elements from the same group, such as covers, panels, or additional mudguards, check the available parts in the Mercedes Mudflaps category.

For more extensive service or modernization work, it is also worth using substantive technical materials. For example, when selecting turbocharging and air cooling system components in other models, the Global Parts guide may be helpful – BMW B58 code, or 340 HP from the secondary market – a checklist before buying a turbocharger and intercooler for the BMW 3 Series (G20), which shows how to approach verifying compatibility and OEM markings step by step.

Summary

Mercedes-Benz E-Class W211 Tunnel Rear Sound Insulation Panel is a practical body component that supports the maintenance of acoustic comfort and the proper operation of the rear part of the vehicle structure. Its original origin, fitment for the specific model, and suitability for typical service repairs make it a reasonable choice when restoring factory acoustic insulation in the E-Class W211.