Mercedes W164 Rear Door Seal Gasket Left Right N/O/S Buckskin Beige A1646900398

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W164 Rear Door Seal Gasket Left Right N/O/S Buckskin Beige is an original component from the Door seals group, designed for the rear body section of Mercedes vehicles. The beige finish ensures interior color consistency, while the precise fit of the seal supports acoustic comfort and protection against moisture.

Specifications and technical data

• SKU: A1646900398-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1646900398
• Substitutable numbers: A1646900398, A 164 690 03 98
• Location on the vehicle: Rear, Right, Left
• Color: Beige
• Category: Door Seals

Purpose and vehicle placement

The presented seal is designed for installation in the rear body section, on either the left or right side. This solution allows for flexible use of the component when servicing both rear doors, which facilitates body repair planning and reduces the number of different references needed in the workshop.

Placement in the rear axle door zone is crucial for the tightness of the passenger cabin. A properly selected seal limits the ingress of water, dust, and noise, which translates into stable operating conditions for locks, upholstery, and electrical installations in the doors.

Material characteristics and color

The rear body door seal is made of flexible material adapted to work in variable temperature conditions. The design ensures proper elasticity in the area of contact with the sheet metal and door frame, which helps maintain uniform pressure along the entire perimeter.

The Beige color allows for harmonious matching with light interior configurations used in the Mercedes W164. As a result, the element does not disturb the aesthetics of the sills and pillars, and the contact line between the seal and the upholstery remains visually consistent with the factory finish.

Benefits of using an original door seal

Using a dedicated rear left/right seal in the Mercedes W164 brings a number of practical benefits:

• maintaining the proper geometry of the door fit to the body,
• reducing air drafts and noise at higher speeds,
• better protection against moisture penetration around the sills and upholstery,
• stable operating conditions for locks, hinges, and electrical installations in the doors.

For the user, this means more comfortable driving conditions, and for the workshop – predictable installation and fewer corrections after service. A properly selected door seal also helps reduce the risk of corrosion in critical body points.

Component condition and service application

The seal is offered as a new old stock (N/O/S) element, making it an attractive solution for budget repairs or restoring the efficiency of a daily-driven vehicle. This type of component will work well both when replacing a damaged seal after a collision and during the gradual renovation of the door zone in an older model.

In workshop practice, the rear left/right seal for the Mercedes W164 can be used for:

• post-accident repairs in the rear door area,
• eliminating leaks and seepage around the sills,
• reducing noise coming from the wheel arches and rear axle,
• restoring the factory acoustic comfort of the cabin.

Complementary Mercedes door seals

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

Additional technical support

When planning broader service work, it is also worth considering the condition of other components affecting ride comfort and vehicle stability. Practical tips on diagnostics and operation of elements responsible for vehicle handling can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which helps to better plan service work within the chassis.