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

Mercedes W212 Trunk Load Cover Rear Left N/S Rail Power Motor is an original component from the Tailgates and rear parts group, designed for installation in the cargo area. The grey color ensures a seamless match with the factory interior finish, while the integrated electric motor provides convenient, repeatable operation of the luggage cover system.

Specifications and technical data

• SKU: A2128202942-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2128202942
• Substitutable numbers: A2128202942, A 212 820 29 42, BG
• Location on the vehicle: Rear, Left
• Color: Grey
• Category: Boot & Hatch Lids

Purpose and function of the component

The described item is a rail for the left side of the vehicle's rear, working in conjunction with the power-operated trunk load cover. It is responsible for the stable guidance of the cover rail and the correct transfer of motion from the motor to the retraction mechanism, which results in smooth opening and closing of the cargo area cover.

Its placement in the rear zone on the left side ensures proper fitment with the upholstery and other trunk trim components, minimizing the risk of looseness, rattling, and unwanted vibrations while driving.

Construction and fitment for Mercedes W212

The component has been designed specifically for the Mercedes E-Class W212 body style, taking into account the geometry of the trunk side panels and the factory load cover system. The rail construction is prepared to work with the original electric motor, which facilitates installation and eliminates the need for additional modifications.

The grey surface finish allows for aesthetic integration into the factory trunk interior color scheme, without visible contrasts. As a result, visual consistency is maintained after replacement, which is particularly important in premium class vehicles.

Operational characteristics and advantages

The original load cover rail with electric motor provides:

• stable guidance of the cover rail along the trunk axis,
• correct cooperation with the factory motor,
• reduced risk of jamming and uneven retraction,
• better protection of transported cargo from outside view.

As a component from the Tailgates and rear parts group, it influences the comfort of daily use – a properly functioning load cover facilitates cargo space organization and enhances the overall impression of interior quality.

Condition, origin, and service application

The product comes from disassembly, which allows for an economical repair of the load cover system while maintaining the manufacturer's original specifications. It is a practical solution in case of rail damage, motor operation issues, or mechanical wear after years of use.

The component will prove useful both for standard replacement of a damaged part and for restoring full trunk functionality in fleet vehicles or cars that are heavily used.

Related Mercedes trunk area components

If you are planning a comprehensive repair or upgrade of the trunk area in your Mercedes and need other items from the same group, such as tailgate hinges, actuators, or additional rails, check the available parts in the Mercedes Tailgates and rear parts category.

For users interested in a broader approach to servicing premium cars using verified parts from disassembly, the practical tips described in the article Luxury within reach – how to service a Porsche legend using verified used parts may be useful, which can be analogously applied when planning service work for other premium segment brands.