Mercedes W204 W212 Rear Axle Cradle Subframe Carrier Suspension A2123504701

The Mercedes W204 W212 Rear Subframe Cradle is a structural component of the rear body, classified under Longitudinal Body Frame Parts and Brackets. It is responsible for the stable support of the suspension and the precise transfer of loads from the rear axle to the body structure, which directly impacts the vehicle's handling and safety.

Specifications and technical data

• SKU: A2043500141
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2043500141
• Substitutable numbers: A 204 350 01 41, A2043500141, A 207 350 97 02, A2073509702, A2123504701, A 212 350 47 01, BG
• Location on the vehicle: Rear
• Category: Frame Rails & Subframes

Purpose and Function in the Vehicle

The rear subframe, also known as a cradle or carrier, serves as a key support for the rear axle suspension components in Mercedes C-Class and E-Class models of the W204 and W212 generations. As a load-bearing structural element, it is responsible for:

• stable mounting of control arms, springs, shock absorbers, and other rear suspension components,
• maintaining suspension geometry within the tolerances specified by the manufacturer,
• efficient transfer of forces generated during acceleration, braking, and cornering to the body.

Its placement on the vehicle, specified as rear, means the subframe operates in close proximity to the drive or non-drive axle, forming a rigid, predictable base for the entire drivetrain.

Construction and Role in the Suspension System

The rear subframe in this Mercedes model is designed as a frame bracket that connects the suspension mounting points to the body. This limits deformation under load and helps maintain:

• consistent wheel alignment on the rear axle, which affects tire wear and driving stability,
• controlled suspension travel over uneven surfaces, without unwanted structural displacement,
• cohesive operation of the braking and drivetrain systems by preserving correct distances and angles between components.

As an element from the Longitudinal Body Frame Parts and Brackets group, the subframe works with other structural reinforcements to create a rigid, predictable platform for the entire rear suspension.

Benefits of Using an Original Rear Subframe

Using an original rear subframe in the Mercedes W204 / W212 allows for the preservation of the manufacturer's intended driving characteristics. Key benefits include:

• factory mounting points for suspension and body, which facilitates installation and geometry alignment,
• maintaining structural rigidity in the rear axle area, crucial at higher speeds and during dynamic driving,
• compatibility with the stock suspension and solutions used in comfort and sportier versions.

This component directly influences driving stability, the vehicle's response to steering inputs, and the operation of assistance systems such as ABS and ESP.

Condition, Origin, and Fitment

The offered subframe belongs to the Mercedes brand and is classified as used. This means it comes from a dismantled vehicle and is intended for users seeking original structural components at a more favorable price than new replacements. By retaining its factory geometry and mounting points, it allows for precise fitment to the body and integration with stock suspension elements.

The placement specified as rear simplifies part selection when planning repairs or upgrades to the drivetrain, especially after a collision, corrosion, or significant wear and tear.

Selecting a Used Rear Subframe and Technical Knowledge

When choosing a used suspension subframe, it is important to check for compatibility with the OEM part number and available interchange numbers, which facilitate matching to a specific body style and engine version. Data such as SKU, OEM Part Number, and Interchange Numbers, presented in the technical specifications section, are helpful in this regard.

If you want to better understand the differences between suspension configurations and make informed decisions when purchasing used load-bearing components, it is advisable to read the article discussing the construction and selection of components: Stock vs. Sport Suspension – Construction Differences and Is It Worth Buying Used Suspension Parts?. This provides practical knowledge for planning repairs to the rear axle of a Mercedes.

Other Longitudinal Body Frame Parts and Brackets for Mercedes

If you also need other parts from the Longitudinal Body Frame Parts and Brackets category for your Mercedes, check out the dedicated offer: Longitudinal Body Frame Parts and Brackets Mercedes. This will help you easily assemble a cohesive set of structural components tailored to your specific model and repair scope.