Mercedes W212 E 350 CDI Front Right O/S Suspension Leg Brake Disc Wheel Hub

Mercedes W212 E 350 CDI Front Right O/S Suspension Leg Brake Disc Wheel Hub is a complete component from the Suspension replacement kits group, designed for installation on the front right side of the vehicle. Integrating the suspension strut, brake disc, and wheel hub into a single module facilitates servicing, reduces repair time, and helps restore proper geometry and driving stability.

Specifications and technical data

• SKU: A2123201238-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2123201238
• Substitutable numbers: A2123201238, A 212 320 12 38, A2123320800, A 212 332 08 00, A2044213281, A 204 421 32 81, A0004211212, A 000 421 12 12, BG
• Weight: 150
• Location on the vehicle: Front, Right
• Category: Suspension Component Replacement Kits

Purpose and function in the chassis system

The described suspension assembly is responsible for transferring loads from the body to the wheel, guiding it along the driving axis, and working with the braking system on the front right side of the vehicle. Using a complete module allows for maintaining consistent operation of the suspension, braking system, and wheel bearings, which translates into stable handling, predictable vehicle behavior in corners, and proper functioning of safety systems.

Assembly construction and benefits of complete replacement

Combining the suspension strut, brake disc, and wheel hub into one assembly reduces the risk of component mismatch and facilitates inspection of the entire wheel hub unit. Replacing the complete module is particularly beneficial in cases of mechanical damage (e.g., after a collision or hitting a curb), where there is a suspicion of bent load-bearing elements or excessive wear of mating surfaces.

Thanks to this solution, a mechanic can restore proper wheel guidance in one step, minimize play, and ensure even operation of the braking system, which is important for both driving comfort and safety.

Vehicle placement and installation aspects

The assembly is intended for installation on the front right side of the vehicle, which is crucial when selecting parts for premium class cars such as Mercedes. Precise fitment to the specific side eliminates problems with geometry, improper wheel alignment, or incorrect suspension operation during braking and acceleration.

The modular design promotes efficient workshop installation – after properly preparing the vehicle, it is possible to quickly replace the entire unit without the need to separate individual components. This solution often shortens vehicle downtime in the workshop and facilitates quality control of the performed repair.

Product characteristics and practical application

The element comes from the Mercedes brand, which means maintaining factory geometry, mounting points, and compatibility with other front axle components. The product is in used condition, making it an attractive cost-effective alternative while maintaining proper performance parameters, especially in the case of older W212 E 350 CDI models.

Selecting the right suspension kit has a direct impact on driving comfort, braking efficiency, and even tire wear. A properly selected and correctly installed assembly helps reduce vibrations, knocking, and unwanted changes in driving trajectory, which is important both in daily use and during dynamic vehicle operation.

If you are planning a comprehensive repair or upgrade of the front axle suspension area in your Mercedes and need other elements from the same group, such as struts, control arms, or hubs, check the available parts in the Mercedes suspension replacement kits category.

Selecting used suspension and technical knowledge

When choosing a used suspension kit, it is worth paying attention to compliance with the OEM part number and interchangeable numbers, as well as parameters such as vehicle placement or component weight. This allows you to avoid installation problems and ensures proper cooperation with existing vehicle components.

To better understand the differences between standard and sports suspension and to make informed decisions regarding the purchase of used components, it is worth reading the article: Standard vs. sports suspension – construction differences and is it worth buying used suspension parts?.

Additional practical tips regarding the operation and maintenance of used components are also provided in the guide How to extend the life of used car parts?, which discusses, among other things, issues related to suspension and chassis components.