Audi A6 S6 C7 Rear Door Seal Catch Support Bracket Left Right N/O/S 4G0839923

Audi A6 S6 C7 Rear Door Seal Catch Support Bracket Left Right is a precision component from the Door seals group, responsible for the stable guidance and proper operation of the rear door check strap. A perfect fit for the Audi body structure ensures secure mounting, correct opening geometry, and smooth, controlled door operation on both the left and right sides.

Specifications and technical data

• SKU: 4G0839923
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0839923
• Substitutable numbers: 4G0839923, 4G0 839 923
• Location on the vehicle: Rear, Right, Left
• Category: Door Seals

Purpose and function in the vehicle

The rear door check strap support bracket in the Audi A6 / S6 C7 is responsible for the stable seating of the check strap mechanism within the body structure. This component operates in the hinge-to-sill area, where loads resulting from opening and closing the doors are transferred, which is why its proper condition is important for:

• maintaining the correct door position in extreme positions,
• limiting unwanted play in the mechanism,
• reducing stress in the door mounting area,
• maintaining repeatable check strap operation over time. Thanks to its dedicated design for the rear axle and the possibility of installation on the right and left side, the component allows for consistent restoration of the factory operating characteristics of both rear doors.

Construction and fitment for Audi A6 / S6 C7

The bracket has been designed as a part structurally compliant with Audi manufacturer requirements, which translates into proper fitment with the door panel and body pillar. Properly shaped mounting points allow for:

• precise positioning of the check strap relative to the hinges,
• stable load transfer during dynamic door opening,
• maintaining proper cooperation with the door perimeter seal. As an element from the Door seals group, the bracket works with the sealing system, indirectly influencing the maintenance of tightness and proper pressure of the door leaf against the body.

Benefits of using an original Audi component

Using a bracket dedicated to the Audi A6 / S6 C7 allows you to maintain the factory operating parameters of the door mechanism. In practice, this means:

• more predictable door behavior in intermediate and extreme positions,
• reduced risk of overloading hinges and mounts,
• better cooperation with the existing check strap and seal,
• consistency with other structural body elements. A used, original Audi component is a cost-effective solution that is technically matched to the specific body generation, which facilitates installation and reduces the need for additional modifications.

Vehicle placement and installation aspects

The bracket operates in the rear side area of the body, on the driver and passenger side, where it is exposed to cyclic loads resulting from daily use. Proper installation requires maintaining alignment relative to the hinges and correct tightening of the mounting points so that:

• the door check strap moves without jamming,
• there is no excessive vibration while driving,
• the door maintains the correct line relative to the body. Due to its operation in a critical area, replacing a worn or damaged bracket is recommended for any signs of unstable door operation, such as clicking, skipping, or noticeable play in the check strap mechanism.

Complementary Audi Door seals

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 perimeter seals, sealing inserts, or additional sealing profiles, check the available parts in the Audi Door seals category.

Operation of a used bracket and durability care

To maximize the potential of a used door check strap bracket, it is worth paying attention to regular inspection of the mounting condition, periodic cleaning of the mechanism area, and the use of appropriate lubricants within the check strap itself. It is also good practice to monitor door operation after any bodywork or hinge adjustment. Useful tips on the operation and maintenance of dismantled parts, including body components and moving mechanisms, can be found in the article How to extend the life of used car parts?, which discusses practical methods for maintaining the high functionality of used components.