Audi Q7 4L Seat Belt Buckle Latch Catch Lock Rear Right O/S 4L0857740J

The Right Rear Seat Belt Buckle Latch for Audi Q7 4L is an original safety system component designed for installation on the rear right side of the vehicle. It ensures secure seat belt fastening, maintaining factory functionality and compatibility with the seat structure of the first-generation Audi Q7.

Specifications and technical data

• SKU: 4L0857740J
• Mark: Audi
• Condition: Used
• OEM Part Number: 4L0857740J
• Substitutable numbers: 4L0857740J, 4L0 857 740 J
• Location on the vehicle: Rear, Right
• Category: Seat Belts & Parts

Purpose and Function in the Safety System

The presented Right Rear Seat Belt Buckle Latch is an element from the Seat Belts and Parts category, responsible for the mechanical fastening of the seat belt on the rear right side of the bench seat. It is responsible for:

• stable retention of the belt tongue in the locked position during driving,
• controlled release of the lock upon pressing the button,
• cooperation with the factory safety system designed for the rear right seating position.

Thanks to the use of an original Audi solution, the correct belt routing geometry and predictable system behavior during daily operation are maintained.

Compatibility with Audi Q7 4L

This part has been specifically designed for the Audi Q7 4L model and is intended for installation on the rear right side of the interior. This means:

• fitment to the factory mounting points in the seat and body structure,
• compatibility with the factory belt length and shape for the given seating position,
• visual consistency with other interior elements designed for this model version.

Using an original latch minimizes the risk of installation issues and eliminates the need for modifications to mountings or belt routing.

Characteristics of a Used Part

This is a used part, sourced from disassembly, which allows for maintaining factory specifications while reducing repair costs. This type of component:

• retains the original construction of the locking mechanism,
• remains compatible with the factory safety systems used in the Audi Q7 4L,
• offers an economical alternative to new parts while ensuring proper functionality.

Prior to installation, a standard inspection of the latch mechanism and the correct operation of the release button is recommended, in accordance with the service procedure.

Benefits of Using an Original Seat Belt Latch

Replacing a damaged or faulty latch with an original Audi part allows for:

• restoring full functionality of the right rear seat belt,
• maintaining predictable safety system behavior under daily operating conditions,
• preserving the structural and aesthetic consistency of the interior according to the manufacturer's design.

For Audi Q7 4L owners, this is a practical solution for post-accident repairs, replacement of worn-out parts, or completing missing components after interior disassembly.

Other Audi Seat Belts and Parts

If you are looking for other Audi seat belts and parts, check out the Audi seat belts and parts available in our store to select compatible components for your model.

How to Care for Used Safety System Components

To extend the lifespan of components like the seat belt buckle latch, it is advisable to perform regular checks, avoid excessive dirt accumulation in the mechanism, and address any irregularities in the operation of the button or lock. Practical tips for operation and maintenance can be found in the article How to Extend the Lifespan of Used Car Parts?, which describes proven methods for caring for disassembled parts.