Mercedes W176 C117 Front Floor Tunnel Stiffener Bracket A1766190025

Mercedes W176 C117 Front Floor Tunnel Stiffener Bracket is an original body structural component designed for installation in the front section of the center tunnel. As part of the Trims, decorative moldings and decorations group, the bracket stabilizes the tunnel assembly, improves the rigidity of this area, and ensures proper alignment of trim components. This used OEM part is a sensible choice for drivers who want to maintain factory fitment and interior consistency in their Mercedes.

Specifications and technical data

• SKU: A1766190025
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1766190025
• Substitutable numbers: A1766190025, A 176 619 00 25
• Location on the vehicle: Front
• Category: Trim

Function and application of the front floor tunnel stiffener bracket

The front floor tunnel stiffener bracket in Mercedes W176 and C117 models is responsible for providing stable support for the front part of the center tunnel and its associated trim elements. A properly selected bracket:

• ensures the correct positioning of the tunnel relative to the floor and dashboard,
• reduces unwanted vibrations and squeaks in this area,
• facilitates precise installation of trims and decorative moldings,
• helps maintain the factory geometry of the front interior section. As a result, the interior remains visually consistent, and the tunnel assembly components operate under conditions close to factory specifications.

Construction, fitment, and installation

The bracket has been designed specifically for the Mercedes compact class platform, which translates into precise fitment with factory mounting points. The design intended for installation in the front of the vehicle allows for:

• seamless positioning relative to the floor and center tunnel,
• compatibility with original trims and decorative moldings,
• maintaining proper gaps between interior finish elements. The used OEM part is particularly beneficial for post-collision repairs, replacing damaged tunnel assemblies, or restoring the interior to factory condition after previous unprofessional modifications.

Benefits of choosing an original Mercedes bracket

Compared to universal solutions or unreliable aftermarket replacements, the original floor tunnel bracket offers a number of practical advantages:

• Factory geometry – maintaining the correct tunnel line and stable support for trims.
• Compatibility with decorative elements – secure mounting of decorative moldings and panels within the tunnel area.
• Structural consistency – operation within the system designed by the manufacturer, without the need for modifications.
• Ability to use existing mounting points and hardware. For workshops and private users, this means shorter installation time, lower risk of fitment issues, and a more predictable final result.

Used condition and practical installation tips

The used component allows for a significant reduction in repair costs while maintaining the original manufacturer's specifications. Before installation, it is worth paying attention to:

• inspecting mounting surfaces for any potential deformations,
• checking contact points with tunnels and trims,
• cleaning contact areas from dirt before final tightening. A bracket prepared in this way enables stable seating of the tunnel and minimizes the risk of future rattles or looseness in the front part of the interior. If you are planning a comprehensive repair or upgrade of the center tunnel area in your Mercedes and need other parts from the same group, such as covers, panels, or trim moldings, check out the available parts in the Mercedes Trims, decorative moldings and decorations category. When working on interior and structural components, it is also worth ensuring the proper condition of the fuel system – when planning more extensive service, the article Fuel dosing problems: what to look for when buying a used injection pump and fuel rails? will be helpful, providing tips on how to safely choose used components from dismantling.