Mercedes S212 C218 Rear Axle Subframe Cradle Beam is an original structural component of the rear body, designed for Mercedes E-Class and CLS models. The robust rear axle frame ensures stable mounting of the suspension and key sub-assemblies, which translates to predictable handling and correct vehicle geometry.
Specifications and technical data
- SKU: A2183501401
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2183501401
- Substitutable numbers: A2183501401, A 218 350 14 01
- Location on the vehicle: Rear
- Category: Frame Rails & Subframes
Purpose and Function in the Vehicle
The presented rear axle subframe belongs to the category of Longitudinal Body Frame Parts and Brackets and is mounted at the rear of the car. It is responsible for the rigid connection of the suspension to the body, transferring dynamic loads, and maintaining the correct wheelbase and wheel position relative to the chassis.
The rear axle frame in S212 and C218 models performs several key tasks:
- Suspension Stabilization – precise guidance of control arms and other suspension components.
- Load Transfer from the Road – even distribution of loads onto the body structure.
- Wheel Geometry Maintenance – preservation of correct camber and toe angles.
- Vibration Reduction – cooperation with bushings and mounts to limit vibrations transmitted to the cabin.
Construction and Technical Features
The Mercedes rear axle subframe is designed as a rigid, multi-point load-bearing structure, adapted for operation in demanding conditions. Appropriately shaped profiles ensure favorable stress distribution, and mounting points are positioned to maintain factory vehicle handling parameters.
Key structural features include:
- Precisely manufactured mounting sockets for suspension components and rear axle accessories.
- Factory bolt points to the body, enabling installation in accordance with Mercedes service documentation.
- OEM-compliant geometry, facilitating wheel alignment and angle adjustments after replacement.
By maintaining the original construction, the rear axle frame allows for the restoration of factory driving dynamics stiffness after a collision, corrosion, or mechanical damage to the previous component.
Benefits of Using an Original Rear Axle Subframe
Using an original rear axle frame in a Mercedes S212 or C218 offers tangible benefits for both the user and the repair shop:
- Guaranteed Fitment – compliance with factory body and suspension mounting points.
- Predictable Vehicle Behavior – maintaining the handling characteristics designed by the manufacturer.
- Simplified Service Work – ability to use geometry data and repair procedures intended for the original construction.
- Optimal Load Transfer – correct distribution of forces within the body structure, reducing the risk of secondary damage.
Component Condition and Application in Repairs
The offered rear axle subframe is a used part from disassembly, allowing for economical vehicle repair while maintaining the original structural specification. This type of part is particularly useful for:
- Post-accident repairs of the rear body section.
- Removing the effects of corrosion in the area of the factory frame or brackets.
- Restoring suspension geometry after severe impacts to the wheel or mechanical damage.
Replacing the rear axle subframe with an original part from disassembly helps maintain the vehicle's structural integrity and avoid fitting issues typical of aftermarket parts of uncertain origin.
Mercedes Longitudinal Body Frame Parts and Brackets
If you are looking for other Mercedes longitudinal body frame parts and brackets for your car, check out our dedicated category: Mercedes longitudinal body frame parts and brackets. There you will find a wide selection of structural components tailored to various models of this brand.
How to Care for a Used Rear Axle Subframe
To maximize the potential of a used rear axle frame, it is advisable to ensure proper installation, check bushings, bolts, and mounting points, and perform regular suspension inspections. Practical tips for operating and maintaining used structural components can be found in the article: How to Extend the Lifespan of Used Car Parts?, which describes proven methods for caring for disassembled components.
