Mercedes W212 E 250 CDI Front Left N/S AMG Suspension Leg Brake Disc Wheel Hub

Mercedes W212 E 250 CDI Front Left N/S AMG Suspension Leg Brake Disc Wheel Hub is a complete, used item from the Suspension replacement kits group, designed for installation on the front axle on the driver's side. Integrating the suspension strut, brake disc, and wheel hub into a single assembly facilitates servicing, reduces repair time, and helps maintain consistent performance parameters of the chassis system.

Specifications and technical data

• SKU: A2123201238-3
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2123201238
• Substitutable numbers: A2123201238, A 212 320 12 38, A2123320700, A 212 332 07 00, A2044213181, A 204 421 31 81, A0004211212, A 000 421 12 12, BG
• Location on the vehicle: Front, Left
• Category: Suspension Component Replacement Kits

Purpose and front axle configuration

The offered set has been designed specifically for the Mercedes E-Class W212 generation model with a 250 CDI engine in the AMG version, intended for the front left side. Using a complete suspension assembly with a brake disc and wheel hub helps maintain proper geometry, handling stability, and consistent operating characteristics of the braking and chassis systems.

The vehicle placement reduces the risk of errors when selecting parts and facilitates workshop planning – the mechanic receives an assembly ready for installation, which replaces several separate components.

Construction of the AMG suspension set

The set includes an AMG suspension strut along with a brake disc and wheel hub, which allows for consistent operation of the components responsible for steering and braking the vehicle. The use of components from the AMG line translates into sportier suspension performance, more precise handling, and better vehicle control at higher speeds.

Combining the wheel hub with the brake disc in one assembly minimizes radial and axial runout, which promotes even brake pad wear and stable operation of the braking system. The set is prepared for operation in factory mounting points, which facilitates installation in the W212 body without the need for modifications.

Benefits of using a complete suspension replacement kit

Choosing a complete suspension replacement kit for the front left side in a Mercedes W212 E 250 CDI allows for a reduction in the number of service operations and minimizes the risk of incorrect assembly of individual elements. Simultaneous replacement of the strut, disc, and hub:

• ensures consistent suspension and brake performance on one side of the axle,
• facilitates maintaining proper geometry and driving stability,
• reduces installation time compared to replacing individual components,
• limits the risk of additional play and unwanted vibrations.

For the user, this means more predictable vehicle behavior, better control over the car, and greater comfort of use after the repair.

Condition, origin, and technical fitment

The item comes from dismantling and is offered as a used original Mercedes set, which helps maintain the factory handling character and compatibility with other front axle components. Using parts from the same model platform limits the risk of assembly problems and dimensional discrepancies.

For certainty of fitment, it is worth verifying compatibility by OEM number or interchangeable numbers available in the technical specification – this allows confirming that the offered set corresponds to the configuration of a specific W212 E 250 CDI unit in the AMG version.

Operation and maintenance of the used suspension set

To maximize the potential of the used suspension set with brake disc and wheel hub, it is recommended to thoroughly check the condition of cooperating elements during installation (e.g., mounts, covers, links). Proper tightening of bolted connections, maintaining assembly torques, and subsequent wheel geometry check help maintain stable handling and even tire wear.

Practical tips on caring for components from dismantling – including suspension and chassis elements – can be found in the article How to extend the life of used car parts?, where proven maintenance and operation methods are described.

Expanding the scope of service work

If you are planning a comprehensive repair or upgrade of the suspension and brake zone on the front axle in your Mercedes and need other elements from the same group, such as additional struts, complete assemblies with a hub, or sets with discs, check the available parts in the category Mercedes suspension replacement kits.