Mercedes W164 AMG Rear Bumper Lower Diffuser Trim Panel Cover Tanzanite Blue 359

Visual condition of the part

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

Mercedes W164 AMG Rear Bumper Lower Diffuser Trim Panel Cover Tanzanite Blue is an original body component from the Bumpers and reinforcements category, designed for the rear section of the vehicle. The diffuser in Tanzanite Blue Metallic allows for an aesthetic and technically correct repair or upgrade of the rear bumper in Mercedes W164 class models with the AMG package.

Specifications and technical data

• SKU: A1648854725-TB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1648854725
• Substitutable numbers: A1648854725, A 164 885 47 25
• Location on the vehicle: Rear
• Color: Tanzanite Blue Metallic - 359
• Category: Bumpers & Reinforcements

Purpose and function of the diffuser

The presented diffuser is a rear bumper component responsible for finishing the lower part of the bodywork and properly directing airflow behind the vehicle. Mounted in the rear zone, it works in conjunction with other bumper components to create a cohesive, dynamic look characteristic of the AMG version.

Thanks to the factory design tailored to the W164 body lines, the diffuser ensures proper fitment with the outer part of the bumper and mounting elements, which facilitates installation and reduces the need for additional bodywork or painting modifications.

Color and visual fitment

The diffuser is finished in Tanzanite Blue Metallic - 359, which allows for color consistency with bodywork in the same paint code. The metallic color highlights the line of the rear bumper, harmonizes well with chrome and dark styling accessories, and emphasizes the sporty character of the AMG package.

For vehicles with a different paint color, the component can serve as a base for repainting while maintaining the correct surface structure and geometry intended by the manufacturer.

Technical characteristics and installation

The diffuser belongs to the Bumpers and reinforcements group, which means it is designed to work with factory mounting points in the rear of the body. Its placement on the vehicle, specified as the rear, indicates the clear purpose of the component and minimizes the risk of error when selecting parts.

Its original Mercedes origin helps maintain factory assembly clearances, correct edge alignment, and compatibility with other AMG bumper components. This is particularly important for post-accident repairs, where both aesthetics and the correct restoration of body geometry are crucial.

Condition of the component and practical application

The diffuser is offered as a used part, which allows for an economical repair of the rear body zone while maintaining the original manufacturer's specifications. This type of component is suitable both for replacing a damaged diffuser after a collision and for upgrading a standard bumper to a version with a sportier look.

Choosing an original salvaged diffuser is a beneficial solution for users who want to maintain compliance with the factory AMG styling line, avoiding fitment issues typical of aftermarket parts with universal construction.

Expanding the rear body zone of your Mercedes

If you are planning a comprehensive repair or upgrade of the rear bumper zone in your Mercedes and need other elements from the same group, such as covers, reinforcements, or additional shields, check out the available parts in the Mercedes Bumpers and reinforcements category.

For drivers interested in a broader context of premium car modifications, including the differences between standard and sports styling and mechanical packages, an article describing the characteristics of sports components may be helpful – more information can be found in the material BMW M Performance: how do BMW M components differ from standard ones?.