Mercedes W218 350 CDI BlueTec Rear Left N/S Suspension Leg Wheel Hub Brake Disc

The Rear Left Suspension Assembly with Wheel Hub and Brake Disc for Mercedes W218 350 CDI BlueTec is a complete, used part from the Suspension Replacement Kits category, designed for installation on the rear left axle. This is a practical solution for Mercedes owners seeking factory fitment, consistent suspension geometry, and proven compatibility with the braking system.

Specifications and technical data

• SKU: A2123500141-5
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2123500141
• Substitutable numbers: A2123500141, A 212 350 01 41, A2213501910, A 221 350 19 10, A2124230281, A 212 423 02 81, A0004230912, A 000 423 09 12, BG
• Weight: 150
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Intended Use and Function in the Vehicle

The presented suspension assembly is designed to operate on the rear left side of the vehicle, integrating in a single unit the components responsible for wheel guidance, load transfer, and interaction with the braking system. This ensures a structured replacement process, maintaining the correct position of the hub, disc, and other suspension components.

An element configured in this way is particularly useful for post-collision repairs, replacement of worn suspension components, or restoring correct axle geometry in Mercedes W218 350 CDI BlueTec models.

Benefits of Using a Complete Suspension Assembly

Using a complete rear left suspension assembly with a wheel hub and brake disc offers a range of practical service and user benefits:

• consistent fitment of components responsible for wheel guidance and braking,
• reduced risk of assembly errors resulting from combining random parts,
• easier technical inspection of the entire suspension unit during installation,
• maintenance of factory-set suspension and braking system performance characteristics.

For workshops and users, this means a more predictable repair outcome and fewer potential post-installation adjustments.

Technical Characteristics and Fitment

This part belongs to the Suspension Replacement Kits category, meaning it is configured as a set of cooperating components rather than a single part. The integration of the wheel hub with the brake disc in a single assembly facilitates the maintenance of proper radial and axial runout, which is important for ride comfort and braking stability.

The product comes from the Mercedes brand, which translates into maintaining original geometry, appropriate mounting points, and compatibility with the factory design solutions used in W218 350 CDI BlueTec models.

Condition, Origin, and Service Application

The offered suspension assembly is a used part, making it an attractive cost-effective alternative to new components while retaining the original manufacturer's specifications. This type of solution is often chosen for accident repairs, fleet vehicle renovations, and economical restoration of daily-driven vehicles.

By retaining its factory origin, the part integrates well with the existing suspension and braking system, contributing to predictable vehicle handling and proper interaction with safety systems.

Technical Support and Additional Materials

To better understand the role of such assemblies in a car's construction and the relationships between shock absorbers, control arms, and stabilizers, it is worth consulting the technical guide: Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers. This is a helpful source of knowledge for planning suspension repairs and diagnostics in modern cars.

If you are considering the choice between new and used suspension parts and want to compare costs with quality, you will find a practical comparison in the article: New or Used? Comparing the Cost and Quality of Car Parts, which discusses the differences using OEM parts as examples.

If you are planning a comprehensive repair or upgrade of the suspension area in your Mercedes and need other parts from the same group, such as additional strut assemblies, complete hub units, or other modules mounted at the wheel, check the available parts in the category Mercedes Suspension Replacement Kits.