BMW X3 E83 Rear Door Bottom Hinge Left N/S Silver Grey A08 3402821

BMW X3 E83 Rear Door Bottom Hinge Left N/S Silver Grey A08 is an original body component designed for the rear left side of the vehicle, ensuring stable operation of the door. It maintains the correct door geometry, which translates into secure closing, proper seal fitment, and daily operational comfort. Thanks to the factory finish in Silbergrau Metallic - A08, the hinge blends harmoniously with the bodywork, facilitating an aesthetic replacement. This is a used OEM component that allows for an economical yet precise repair of the rear body section.

Specifications and technical data

• SKU: 3422371-SBG
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3402821
• Substitutable numbers: 41003422371, 3422371, 41003404899, 3404899, 3402821
• Location on the vehicle: Rear, Left
• Color: Silbergrau Metallic - A08
• Category: Other Exterior Parts & Accessories

Purpose and function of the door hinge

The bottom door hinge in the BMW X3 E83 is responsible for guiding and supporting the door in the rear left part of the body. Its tasks include:

• maintaining the correct axis of rotation of the door relative to the pillar and sill,
• ensuring smooth opening and closing without excessive play,
• stabilizing the door position relative to the lock and striker,
• reducing unwanted stress on the sheet metal and seals.

A properly selected and functional hinge helps eliminate problems with door sagging, difficult closing, or uneven fitment to the body. This is particularly important in the case of heavily used BMW X3 units, where the weight of the door and frequent use can cause wear on mounting elements over time.

Color and body fitment

The presented hinge is finished in the Silbergrau Metallic - A08 shade, which facilitates integration with the factory body paint in this color. In many cases, this allows for limiting paintwork to minor touch-ups only, without the need for full painting of the component.

By maintaining the original mounting specifications, the hinge works with the factory mounting points in the body and door, which helps maintain correct gaps and body lines. Such fitment is especially important when precisely aligning the door relative to the fender, sill, and rear bumper.

Characteristics of the used OEM element

As a used original BMW element, the rear left bottom door hinge offers a construction consistent with the manufacturer's factory standards. This means maintaining:

• appropriate strength of the body material and pin,
• geometry consistent with the BMW X3 E83 body line,
• compatibility with factory bolts and mounting points.

Choosing an original hinge from the secondary market is a beneficial solution for users who want to maintain the structural integrity of the body while optimizing repair costs compared to purchasing a new part.

Practical benefits of replacing the hinge

Replacing the rear left bottom hinge in the BMW X3 E83 is recommended in situations where symptoms such as door sagging, noticeable play when opening, or the need to use more force to close the door occur. Using the presented component allows you to:

• restore the correct door line relative to the body,
• reduce loads acting on the lock and striker,
• reduce noise and leaks resulting from improper seal fitment,
• increase the comfort of using the rear passenger area.

For workshops specializing in the BMW brand, such a hinge is a practical service solution, allowing for efficient and predictable repair without the need to modify the door structure.

Related elements and technical knowledge development

If you are planning a comprehensive repair or upgrade of the rear body area in your BMW and need other elements from the same group, such as additional hinges, mounts, or brackets, check the available parts in the Other BMW category.

For a comparison of technical solutions used in sports models of other brands, including suspension construction, braking systems, and body components, it is worth familiarizing yourself with the analysis of differences between standard and sports versions – detailed in the article Audi RS vs other models – what is hidden under the hood and chassis?.

If you are interested in a broader context of selecting elements from the secondary market and want to better understand how to effectively use original used components in service or for DIY repairs, the practical guide to second-hand parts may be helpful: The best used car parts – a guide to the most frequently chosen original parts.