BMW G26 Mirror Triangle Cover Interior Trim Right O/S Harman Kardon 5A3F212

BMW G26 Mirror Triangle Cover Interior Trim Right O/S Harman Kardon is a component from the Trims, decorative strips and decorations group, designed for installation on the passenger side. This practical solution allows for maintaining a consistent interior look while providing the correct housing for the Harman Kardon audio system component.

Specifications and technical data

• SKU: 5A3F212
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A3F212
• Substitutable numbers: 5A3F212, 51335A3F212
• Location on the vehicle: Right
• Category: Trim

Purpose and function of the component

The described mirror triangle cover is the factory finish for the inner part of the door on the right side of the BMW G26 model. Its task is to aesthetically cover the mounting area of the exterior mirror and create a stable location for the Harman Kardon system component, without interfering with the door structure.

Thanks to its precise fit for the specific body generation, the component ensures proper alignment with the door upholstery, reduces unwanted vibrations, and helps maintain an orderly appearance of the A-pillar from the cabin side.

Construction and fitment for BMW G26

The cover has been designed as an integral part of the BMW door trim, taking into account the geometry of the pillar, the shape of the window frame, and the position of the mirror. It is mounted on the right side of the vehicle, which eliminates the risk of error when selecting between the driver and passenger sides.

The layout of the mounting points and the preparation for the Harman Kardon audio component allow for installation without additional modifications. As a result, the cover works well with factory clips and seals, which is important for both acoustics and the durability of the entire door trim.

Integration with the Harman Kardon system

The component is adapted to work with the factory Harman Kardon audio system used in the BMW G26. The properly shaped surface and the designated space for the audio component help maintain proper sound dispersion in the front part of the cabin.

Such a fit promotes the maintenance of a consistent acoustic characteristic of the interior, while simultaneously allowing for the aesthetic integration of the speaker into the door line, without the need for additional adapters or non-factory solutions.

Condition, origin, and service application

The cover comes from the BMW range and is a used part, which makes it an attractive option for post-accident repairs, replacing damaged trim, or restoring the interior to a factory-like condition. Choosing an original component from this group allows for maintaining dimensional and material compatibility with other door elements.

The product will prove useful both in the case of localized repairs (e.g., after mirror removal or window replacement) and during broader interior renovation work, where maintaining a uniform texture and color of the finish is important.

Expanding the BMW interior configuration

Replacing or supplementing the mirror triangle cover on the passenger side is a simple way to organize the door area and match it to the configuration with the Harman Kardon system. This helps avoid unsightly gaps, mismatched caps, or universal elements that often differ visually from the rest of the upholstery.

If you are planning a comprehensive repair or upgrade of the door trim area in your BMW and need other elements from the same group, such as covers, overlays, or additional strips, check the available parts in the BMW Trims, decorative strips and decorations category.

For drivers interested in a broader approach to modifications and service of BMW/Mini group cars, guide materials may also be useful – you can find more on the selection of used components and their impact on the car's character in the article Go-Kart Feeling XXL: used N18 turbocharger versus B48 – what to choose for a Mini Cooper S?.