Mercedes W212 Trunk Load Cover Rear Left N/S Rail Power Motor Beige A2128202942

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W212 Trunk Load Cover Rear Left N/S Rail Power Motor is a precision component of the rear interior system, responsible for the smooth guidance and stable positioning of the cargo area cover. The beige finish ensures color consistency within the interior, and the use of an original Mercedes solution guarantees a secure fit to the trunk lid structure and the side body panel.

Specifications and technical data

• SKU: A2128202942-3
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2128202942
• Substitutable numbers: A2128202942, A 212 820 29 42
• Location on the vehicle: Rear, Left
• Color: Beige
• Category: Boot & Hatch Lids

Purpose and function in the Mercedes W212

The described item is the left rear trunk cover rail with an integrated motor, which works with the electric mechanism responsible for the automatic extending and retracting of the cargo area cover. It is mounted on the driver's side in the rear part of the body, within the side trunk trim area, where it is responsible for:

• stable guidance of the cover rail along the vehicle axis,
• proper tensioning and positioning of the cover material,
• correct interaction with the drive motor,
• maintaining the proper operating geometry of the entire luggage cover system.

Thanks to this, the trunk system retains its functionality, and the cover operates in a predictable and repeatable manner, without jamming or uncontrolled play.

Color and interior integration

The beige finish of the component allows for aesthetic integration with the light interior configurations used in the Mercedes W212. The color is selected to harmonize with the trunk side panels, headliner, and the upholstery of the rear cabin area. As a result, after installation, the rail does not visually stand out from the other components, and the entire trunk zone maintains a consistent, orderly appearance.

Technical specifications and installation

The element belongs to the Trunk lids and rear parts group, which means it is designed to work with the rear body structure and mechanisms responsible for managing the cargo space. The positioning on the left rear side requires maintaining the correct orientation during installation to ensure:

• proper connection with the side body structure,
• compatibility with factory wiring routing and mounts,
• interference-free operation with the trunk lid and other cover elements.

As a part with an electric motor, the rail interacts with the vehicle's electrical system; therefore, during replacement, it is recommended to maintain the factory wiring harness routing and verify the mechanism's correct operation after installation.

Benefits of using an original Mercedes solution

Using an original component dedicated to the Mercedes W212 allows for maintaining the factory operating parameters of the trunk cover. Key advantages include:

• Precise geometric fit to the side body and trunk lid,
• compatibility with the existing electric drive and control system,
• preservation of the original functionality of the cargo area cover,
• color consistency with the beige interior finish.

The product is offered as a used item, which allows for an economical repair of the trunk system while maintaining the manufacturer's original specifications.

Support with selection and purchase

When selecting such components, it is worth paying attention to compatibility with the body version and interior configuration of the specific Mercedes W212. If necessary, you can use the OEM part number or interchangeable numbers to verify full compatibility with the vehicle.

If you are planning a comprehensive repair or upgrade of the rear trunk area in your Mercedes and need other elements from the same group, such as rails, covers, or mounting hardware, check the available parts in the Mercedes Trunk lids and rear parts category.

Additional tips on the safe selection of used components, including rear trunk interior elements, can be found in the Global Parts guide: Safe purchase of used car parts online – a step-by-step guide.