Audi A6 C6 Front Rear Door Lock Latch Seal Underlay Left Right O/S 4F0839087

Audi A6 C6 Front Rear Door Lock Latch Seal Underlay Left Right is a precision component from the Door seals group, designed specifically for Audi vehicles. It is responsible for the stable seating of the lock and proper sealing of the mounting area, which translates into smoother door operation and the reduction of unwanted play and noise.

Specifications and technical data

• SKU: 4F0837087
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F0837087
• Substitutable numbers: 4F0837087, 4F0 837 087
• Location on the vehicle: Front, Rear, Left, Right
• Category: Door Seals

Purpose and technical function

The lock underlay in the Audi A6 C6 works in the immediate vicinity of the locking mechanism, stabilizing its position relative to the door panel. The properly selected shape and thickness of the component help maintain the correct closing geometry, which is important for both user comfort and acoustic sealing as well as protection against moisture.

The component has been designed for installation in the front and rear doors, on both the left and right sides, which facilitates service and reduces the number of different references needed when servicing the entire vehicle. As a result, one design can be used in several positions, maintaining mounting consistency throughout the bodywork.

Compatibility and fit for Audi

As a part intended for Audi, the lock underlay is prepared to work with the factory door mechanism of this model. The appropriate arrangement of mounting holes and the fit to the door sheet metal pressings allow for installation without modifications, while maintaining the original closing line.

The component has an assigned OEM part number and interchangeable numbers, which facilitates verification of compatibility with a specific body version and model year. When selecting, it is worth comparing the markings with service documentation or the existing component to ensure that the underlay will work with the lock and striker in the vehicle.

Performance characteristics and installation

The lock underlay works in a critical area where mechanical loads occur due to frequent opening and closing of the door. Proper adjustment of the thickness and contact surface helps to:

• maintain a stable position of the lock relative to the pillar and striker,
• reduce unwanted vibrations and knocking while driving,
• reduce the risk of door line misalignment in the long term of operation.

Due to its placement on the vehicle (front, rear, left, right), the same type of underlay can be used when servicing several doors, which is logistically beneficial in a workshop and for DIY repairs. Installation involves removing the lock, replacing the spacer element, and resetting the mechanism in accordance with the vehicle manufacturer's recommendations.

Part condition and benefits of use

The offered lock underlay is a used part, which allows for economical repair while maintaining the original geometry and fit characteristic of OEM group components. In many cases, the use of such a component is cost-effective, while at the same time allowing for the maintenance of structural consistency with other door elements.

The use of the correct underlay is particularly important when symptoms such as difficulty closing the door, slight sagging of the door leaf, or knocking on uneven surfaces appear. Replacing this element can be one of the steps when adjusting the lock and restoring the proper operation of the entire door assembly.

Expanding Audi door service

If you are planning a comprehensive repair or upgrade of the door area in your Audi and need other elements from the same group, such as additional underlays, seals, or spacer elements, check the available parts in the Audi door seals category.

To better select the appropriate used lock underlay for a specific version of the Audi A6 C6 and avoid mistakes when ordering, it is worth using practical expert tips – you will find them in the article No more bad purchases! How to professionally select used car parts.