Audi A8 4H Seat Belt Rear Centre Middle Seatbelt Black 4H0857807M

Audi A8 4H Rear Center Seat Belt Black is an original part from the seat belts and parts category, designed for installation on the rear bench seat in the center position. The black color ensures consistency with the factory interior finish, and the OEM construction allows for maintaining proper passenger protection parameters.

Specifications and technical data

• SKU: 4H0857807M
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0857807M
• Substitutable numbers: 4H0857807M, 4H0 857 807 M
• Location on the vehicle: Rear
• Color: Black
• Category: Seat Belts & Parts

Purpose and Function in the Vehicle

The presented Audi rear center seat belt has been designed for use in the rear of the vehicle, in the central position of the bench seat. It is responsible for securely holding the passenger during driving and in emergency situations, working in conjunction with the factory body mounting points.

Installation in the rear bench seat requires precise adjustment of the webbing length, mounting geometry, and retractor characteristics to ensure:

• correct belt routing relative to the passenger's torso and hips,
• controlled operation of the locking mechanism during sudden braking,
• stable connection to the body structure at the factory mounting points.

Construction and Fitment for Audi A8 4H Interior

The belt is made in a black color, which facilitates integration with the standard upholstery and plastic elements in the Audi A8 4H generation. The neutral color minimizes the visibility of operational dirt and blends well with both dark and lighter interior variants.

As an OEM Audi part, the seat belt is structurally matched to:

• original mounting points in the Audi A8 4H body,
• the factory webbing routing system in the center of the rear bench seat,
• seat geometry, so as not to restrict passenger comfort and to allow for correct belt positioning.

Performance Characteristics and Safety

The center seat belt in the Audi A8 4H plays a crucial role in protecting the passenger occupying the central rear seat. The retractor and locking mechanism design has been developed to:

• maintain appropriate webbing tension during normal driving,
• lock belt extension during sudden acceleration or braking,
• limit body movement in the event of a collision, in accordance with the vehicle's safety system design.

Using an OEM part allows for maintaining the original performance characteristics of the safety system, which is particularly important in premium vehicles like the Audi A8.

Condition, Installation, and Service Application

The seat belt is a dismantled, used original Audi part. This type of component is often chosen for:

• post-accident repairs of the rear part of the vehicle,
• damage to the retractor mechanism or webbing in an existing belt,
• restoring complete equipment after interventions on the rear bench seat.

Installation should be performed following manufacturer procedures, with checks on the correctness of bolt fastening, webbing routing, and lock operation. It is recommended to test the belt's function after installation through dynamic extension and locking tests.

Other Audi Seat Belts and Technical Knowledge

If you are looking for other Audi seat belts and parts compatible with specific models of this brand, check out our dedicated category: Audi seat belts and parts. You will find a wide selection of OEM components for various generations and equipment versions.

For those interested in a broader technical context of this brand's models, including differences in powertrain and chassis construction, we recommend the blog article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which helps to better understand Audi's design philosophy and the impact of individual components on the car's character.