Audi A3 8P Seat Belt Rear Left Right N/O/S Seatbelt Black 8P3857805B

Audi A3 8P Right Left Rear Seat Belt is an original part from the seat belts and parts category, designed for installation on the rear seat, either on the right or left side. The black color ensures a consistent match with the factory interior, and the OEM construction guarantees proper interaction with the vehicle's safety systems.

Specifications and technical data

• SKU: 8P3857805B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8P3857805B
• Substitutable numbers: 8P3857805B, BG
• Location on the vehicle: Rear, Right, Left
• Color: Black
• Category: Seat Belts & Parts

Purpose and Fit for Audi A3 8P

The presented Audi A3 8P rear seat belt has been specifically designed for installation on the rear seat, on both the right and left sides. Due to its factory origin, it maintains the correct mounting geometry, which facilitates installation in the original anchor points and ensures proper belt routing relative to the seat and body.

The black shade of the belt upholstery allows for an aesthetic integration into most Audi A3 8P interior configurations, without the need for additional modifications or color matching.

Construction and Performance Parameters

The belt belongs to the seat belts and parts group, meaning it is an element that actively interacts with the vehicle's safety system. The construction includes a retractor with a locking mechanism, a belt of adequate strength, and mounting points adapted to the factory screws and brackets in the Audi body.

Key performance features:

• Vehicle Placement – dedicated for the rear seat, with the possibility of installation on the right or left side, increasing application flexibility.
• Black Color – a neutral, universal shade that blends well with most upholstery configurations.
• Original Audi Construction – maintains factory mounting points and compatibility with standard interior elements.

Safety and Functionality in Daily Use

A functional seat belt on the rear seat is crucial for passenger protection, especially during sudden braking or collisions. Using an original Audi part allows for:

• Maintaining predictable safety system behavior – the belt works with factory mounting points and seat geometry.
• Stable passenger support – appropriately selected belt width and flexibility limit body movement in critical situations.
• Comfort of daily use – smooth belt retraction and extension, without jerking or jamming, encourages regular use of the belt by passengers.

Thanks to its precise fit for the specific body model, installation does not require vehicle structure modification, which is important both from a safety perspective and for future technical inspections.

Condition, Origin, and Benefits of Choosing a Used OEM Part

The offered belt is part of the used Audi OEM parts group. In practice, this means maintaining factory specifications while potentially reducing the cost of vehicle interior repair or renovation. For many Audi A3 8P owners, this is a sensible compromise between quality and budget, especially when replacing individual safety system components.

Choosing an original belt over an aftermarket one promotes:

• Technical consistency – compliance with Audi's factory standards for construction and installation.
• Aesthetic matching – the color and texture of the belt are similar to other interior elements.
• Reduced risk of installation problems – no need for modifications to mountings or belt routing.

Seat Belt and Complete Interior Refurbishment

Replacing a rear seat belt often accompanies other interior work on the vehicle – such as upholstery repair, seat replacement, or equipment upgrades. If you are planning a broader range of work on the safety system, it is also worth considering other items from the Audi seat belts and parts category. For this purpose, you can use the dedicated subpage: Audi seat belts and parts, where you will find related components for your model.

More About the Advantages of Used Parts

If you are interested in the broader context of using used parts in premium segment cars, it is worth reading an article describing how to combine savings with maintaining an appropriate quality standard. You will find practical tips here: Used car parts for Mini Cooper – a way to style and save. Although it concerns a different brand, it well illustrates the approach to conscious selection of used OEM components.