Mercedes W164 Speaker Cover Triangle Front Left N/S Trim Black A1647201770

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W164 Speaker Cover Triangle Front Left N/S Trim Black is a factory door trim component responsible for the aesthetic and stable mounting of the speaker in the front left section of the cabin. Thanks to its precise fit for this specific body generation, it ensures a cohesive interior look and solid support for the audio installation. It is a practical solution for users looking to restore the original appearance of the door upholstery in their Mercedes.

Specifications and technical data

• SKU: A1647201770-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1647201770
• Substitutable numbers: A1647201770, A 164 720 17 70
• Location on the vehicle: Front, Left
• Color: Black
• Category: Doors & Door Skins

Purpose and function of the component

The described cover is part of the Doors and door panels group, responsible for covering the triangular area by the mirror in the front left door. Its functions include:

• protecting the speaker from accidental mechanical damage,
• organizing the edges of the upholstery in the pillar and mirror area,
• reducing unwanted resonance around the speaker,
• maintaining a consistent stylistic line of the vehicle's interior.

Its placement in the front left part of the body allows for direct replacement of a damaged or missing panel without interfering with other door components.

Construction, color, and fitment

The cover has been designed specifically for the door geometry of the W164 series models, which translates into stable mounting and proper adhesion to other trim elements. The black color facilitates integration with typical interior configurations, ensuring a neutral, organized cockpit look.

The component is prepared for installation in factory mounting points, which reduces the risk of improper fitment and eliminates the need for modifications. As a result, the cover can be used both for standard replacement and for work related to audio system upgrades.

Performance characteristics and application

As a pre-owned aftermarket part, the panel is a sensible choice for maintenance repairs where preserving original geometry and compatibility with factory mounts is key. It is suitable for situations such as:

• replacing a damaged or cracked cover after upholstery removal,
• replacing a missing component after previous repairs,
• restoring the interior's completeness before selling the vehicle,
• installing audio sets using factory speaker locations.

The neutral, black surface masks signs of door usage well while not altering the original character of the interior.

Benefits of using an original cover

Using a factory speaker triangle panel allows for maintaining stylistic and technical consistency with other door elements. The main advantages include:

• factory fitment to the door shape and speaker position,
• stable mounting, reducing unwanted vibrations in the speaker area,
• easier removal and reinstallation of upholstery during future service work,
• maintaining the original interior look characteristic of Mercedes W164 models.

Expanding work within the Mercedes door area

If you are planning a comprehensive repair or upgrade of the door zone in your Mercedes and need other components from the same group, such as skins, reinforcements, or additional panels, check out the available parts in the Mercedes Doors and door panels category.

For more advanced vehicle upgrades, especially when also interfering with mechanical systems or charge air cooling, it may be helpful to use practical advice on component selection and verifying their compatibility. In such a scenario, it is worth checking out the Global Parts guide material: BMW B58 code, or 340 HP from the secondary market – a checklist before buying a turbocharger and intercooler for the BMW 3 Series (G20), which shows how to methodically approach part selection based on technical data and catalog numbers.