Mercedes-Benz ML W164 GL X164 Rear Left N/S Pillar Top Trim Cover A1646909325

Mercedes-Benz ML W164 GL X164 Rear Left N/S Pillar Top Trim Cover is an original upholstery element designed for installation in the rear left section of the vehicle body. This used component allows for an aesthetic finish of the pillar, improves the visual consistency of the interior, and helps restore the factory look of the cabin in case of damage or missing parts. Thanks to the precise fit for the specific ML and GL generation, the installation process is smooth, and the result is technically and visually consistent with the manufacturer's specifications.

Specifications and technical data

• SKU: A1646909325
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1646909325
• Substitutable numbers: A1646909325, A 164 690 93 25, BG
• Location on the vehicle: Rear, Left
• Category: Floor Mats, Carpets & Boot Liners

Purpose and function of the component

The described rear left pillar top trim cover has been designed specifically for Mercedes ML-Class W164 and GL-Class X164 models. Its task is to mask the pillar structure, guide the upholstery line, and protect internal body elements against accidental mechanical damage. Its placement in the rear left part of the vehicle means that this element influences the perception of the entire side interior zone – both from the perspective of rear seat passengers and when opening the doors or the trunk lid.

A well-fitted pillar trim also helps to reduce unwanted resonances and squeaks that may occur due to missing or improperly fitted upholstery. Replacing a worn or damaged cover with an original component is therefore a simple way to improve acoustic and visual comfort in the interior.

Construction and body fitment

The element has been manufactured as a dedicated top pillar cover, with geometry appropriately shaped for the body of the ML W164 and GL X164 SUVs. The profile of the trim takes into account the roofline, the shape of the pressings, and the routing of other upholstery panels, which translates into a proper fit with adjacent interior elements.

Key design features of this cover include:

• precise fit for the rear left side of the vehicle,
• designed slots for factory mounting points,
• shape consistent with the original roof and side panel upholstery,
• surface prepared for typical interior operating conditions.

Thanks to this, the installation proceeds without the need for modifications, and after installation, the element forms a cohesive whole with the remaining trim panels.

Benefits of using an original pillar cover

Using an original pillar trim in a Mercedes ML or GL brings a number of practical benefits. First and foremost, it ensures factory fitment and dimensional compliance, which minimizes the risk of looseness, rattles, or unsightly gaps. Compared to aftermarket replacements, the original element fits better into the interior's stylistic line and maintains the proper structural rigidity.

The most important advantages include:

• restoring a cohesive look to the rear cabin after a collision, disassembly, or modifications,
• improving user comfort thanks to stable mounting and reduction of unwanted noises,
• maintaining vehicle value by preserving the original trim specification,
• easier service handling – the mechanic or upholsterer works with a known, factory-standard solution.

The used nature of the part allows for lower repair costs while maintaining the original construction, which is particularly beneficial for comprehensive interior renovation work.

Practical application and installation

The rear left pillar top cover is suitable for both post-accident repairs and gradual interior renovation in older ML W164 and GL X164 units. The element is intended for installation in a specific body zone, which facilitates the identification of the correct side of the vehicle and reduces the risk of errors when selecting parts.

In practice, the installation consists of correctly seating the trim in the factory mounting points and integrating it with adjacent upholstery panels. By following basic upholstery removal and installation principles, the work can be performed both in a professional workshop and by an experienced user who cares about the visual condition of their car.

Expanding interior finishing work

If you are planning a comprehensive repair or upgrade of the cargo area and rear interior in your Mercedes and need other elements from the same group, such as additional upholstery panels, door sill covers, or side trims, check out the available parts in the Mercedes trunk liners, floor mats, and trays category.

When planning broader renovation work on the car, it is also worth taking care of the condition of the drivetrain and cooperating elements. Practical tips on the safe selection of used components can be found in our guide: Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.