Audi A4 B8 Door Front Left N/S Monsoon Grey Metallic - X7R

Visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

Front left door for Audi A4 B8 in Monsoon Grey Metallic is an original body part from the Doors and door panels category, designed for precise installation on the driver's side. This used component ensures a factory fit, maintaining correct geometry, body lines, and color consistency with the paint designated as Monsoon Grey Metallic - X7R.

Specifications and technical data

• SKU: 8K0831051J-MOG
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0831051J
• Substitutable numbers: 8K0831051J, 8K0 831 051 J
• Location on the vehicle: Front, Left
• Color: Monsoon Grey Metallic - X7R
• Category: Doors & Door Skins

Purpose and Fitment

The offered part is a complete front door for the left side, dedicated to the Audi A4 B8 generation. Its placement on the vehicle is clearly defined as the front, driver's side, which simplifies selecting the correct component for post-accident repairs, bodywork corrections, or reconstruction after corrosion.

By retaining the original door construction, it's possible to correctly transfer loads from the hinges, achieve proper gaps between body elements, and ensure seamless integration with factory seals, locks, and hardware.

Color and Paint Finish

The door is factory painted in the shade Monsoon Grey Metallic - X7R, which can reduce or completely eliminate the need for repainting when repairing a vehicle in the same color. The metallic paint finish ensures visual consistency with other body panels and also facilitates work for painters in case of local touch-ups or blending.

Selecting a part with the correct paint code is particularly important for repairs where preserving the car's original appearance and minimizing costs associated with full panel painting are priorities.

Technical Characteristics and Installation

The door belongs to the Doors and door panels category, meaning it is a key element of the vehicle's side body structure, responsible for proper window operation, interior sealing, and integration with the vehicle's locking system. The construction is designed for installation at factory mounting points, without requiring body modifications.

A used body part of this type is suitable for both standard post-accident repairs and the reconstruction of fleet vehicles, where consistency and adherence to factory specifications are crucial. Proper preparation for installation (checking geometry, mounting points, and edges) can reduce workshop labor time.

Practical Application and Benefits of Choosing Used Doors

Choosing original, used doors for an Audi A4 B8 is a solution that combines cost control with maintaining proper body fitment. Compared to aftermarket body parts, a factory door panel offers better dimensional accuracy, which translates to:

• easier adjustment of gaps between the fender, sill, and pillar,
• correct operation of the lock and latches when closing,
• stable window guidance in its tracks,
• improved acoustic and water sealing of the interior.

For body and paint shops, as well as individual owners, this means fewer installation adjustments and shorter repair times.

Audi Body Supplement and Additional Information

If you need other body parts from the same group during repairs, such as door panels for other sides of the vehicle or additional coverings, check the available parts in the Audi Doors and door panels category.

When planning a comprehensive renovation or modification of your car, it's worth considering the broader use of used body and mechanical components. More information on how to effectively use second-hand parts in cars of this brand can be found in the article Audi on Second-Hand Parts – Tuning and Repairs Without Quality Loss.