Mercedes ML W166 Edge Guard Seal Body Door Rear Right Left N/O/S A1666970151

Mercedes ML W166 Edge Guard Seal Body Door Rear Right Left is an original body component from the Door seals category, designed for installation on the rear left and right door edges. It provides a tight, stable edge finish, limiting the ingress of contaminants and improving acoustic comfort inside the vehicle. This solution is dedicated to users who expect factory-fit and predictable installation in their Mercedes.

Specifications and technical data

• SKU: A1666970151
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1666970151
• Substitutable numbers: A1666970151, A 166 697 01 51
• Location on the vehicle: Rear, Right, Left
• Category: Door Seals

Purpose and vehicle placement

The seal has been designed specifically for the rear door area of the Mercedes ML W166 model and is intended for installation on both the left and right sides. The placement on the vehicle covers the rear edge of the door, where the component acts as a protective and sealing element, stabilizing the contact line between the door and the bodywork.

Thanks to its precise profile, the seal works with factory mounting points, which facilitates installation and allows for maintaining visual consistency of the entire side section of the body. This is particularly important when replacing a single component after a collision or local body and paint repair.

Technical function and benefits of installation

The component is responsible for maintaining proper tightness at the contact point between the door and the body, which translates into:

• limiting the ingress of water and dirt into the threshold area,
• reducing wind noise in the rear cabin area,
• protecting the door edge against minor mechanical damage,
• maintaining stable door fitment geometry.

For the user, this means more predictable vehicle behavior in terms of acoustics and a lower risk of corrosion around the door edges. The original design ensures compatibility with factory Mercedes solutions, without the need for modifications or fitting aftermarket replacements.

Product characteristics and fitment

The door edge guard seal has been prepared as a component dedicated to the specific ML W166 generation, which allows for maintaining dimensional and shape consistency with other body components. Precise fitment to the door profile facilitates installation and minimizes the risk of leaks resulting from improper material placement.

The product comes from a used vehicle, which is typical for original body parts of this age. This allows for maintaining factory specifications while reducing costs compared to new components. It is a practical solution for post-accident repairs, restoration, or returning the vehicle to a factory-like condition.

Application in service practice

The seal will prove useful both in professional body and paint shops and in workshops specializing in the Mercedes brand. It can be used for:

• replacing a damaged or deformed seal after a collision,
• local restoration of the rear body section,
• restoring door tightness after previous repairs,
• comprehensive refreshing of the door area in the ML W166 model.

Thanks to the preservation of the original geometry, the component allows for the quick restoration of proper door fitment, which is important for both driving comfort and the durability of paint coatings around the edges.

Complementary Mercedes door seals

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other components from the same group, such as additional perimeter seals, threshold seals, or pillar seals, check the available parts in the Mercedes door seals category.

Technical support and vehicle development

When planning broader work on the body or chassis, it is also worth considering the condition of the wheels and rims, which affect the safety and aesthetics of the entire vehicle. Additional information on selecting and refurbishing alloy wheels can be found in the article Used rims like new: a guide to buying and refurbishing alloy wheels, which can be a practical supplement when comprehensively refreshing your Mercedes.