Mercedes W212 Rear Left N/S Suspension Leg Spring Wheel Hub Brake Disc

Mercedes W212 Rear Left N/S Suspension Leg Spring Wheel Hub Brake Disc is a complete, used part from the Suspension repair kits group, designed for the rear left side of the vehicle. This component serves as the base for the wheel hub mounting and wheel guidance, ensuring correct geometry and stable suspension operation in Mercedes E-Class W212 generation models. It is a solution for users looking for a technically compatible component at a reasonable price.

Specifications and technical data

• SKU: A2123500141-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2123500141
• Substitutable numbers: A2123500141, A 212 350 01 41, A2213500810, A 221 350 08 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

Purpose and function in the suspension

The presented element is responsible for guiding the rear left wheel, transferring loads from the hub to the body, and maintaining the correct position of the wheel relative to the body. In practice, this means:

• stable vehicle handling when driving straight and in corners,
• maintaining correct suspension geometry,
• cooperation with the braking system and wheel mounting elements,
• proper transfer of vertical and lateral forces to the body structure.

Thanks to its proper fit for the W212 platform, the part allows for maintaining factory handling characteristics, which is particularly important in premium class cars such as Mercedes.

Compatibility and OEM identification

The element belongs to the group of original Mercedes components, which facilitates its identification by OEM number and available replacement numbers. The presence of multiple reference numbers allows for selecting the correct version for a specific car configuration, also when comparing with manufacturer catalogs or service software.

To ensure a proper fit, it is worth comparing the markings with the currently installed part or verifying them by VIN number in the Mercedes catalog. This method of selection minimizes the risk of purchasing an incorrect variant and speeds up the suspension repair process.

Vehicle placement and assembly aspects

The part is intended for the rear left side of the vehicle, which eliminates doubts regarding its orientation in the car. Clearly defined placement facilitates the mechanic's work and limits the possibility of errors during assembly.

When replacing, it is recommended to:

• check the condition of other suspension elements in this area (control arms, bushings, links),
• inspect hub mounts and cooperating elements,
• perform wheel alignment after finishing the work to fully utilize the potential of the newly installed part.

Properly performed assembly allows for restoring predictable car behavior, reducing tire wear, and improving driving comfort.

Characteristics of the used part

The offered element is in a used condition, which allows for reducing repair costs while maintaining the original design and fit to the vehicle. Used Mercedes suspension components are frequently chosen in situations where the price-to-quality ratio and compliance with factory solutions are important.

Before assembly, it is worth performing a standard workshop inspection, including an assessment of the mounting surfaces, bolt sockets, and contact points with other suspension elements. This allows for preparing the part for further operation in accordance with the manufacturer's requirements.

Suspension upgrade expansion and additional resources

If you are planning a comprehensive repair or upgrade of the rear suspension area in your Mercedes and need other elements from the same group, such as additional suspension legs, hubs, or complete wheel mounting modules, check the available parts in the Mercedes suspension repair kits category.

When planning repairs using second-hand components, it is worth knowing the broader context of selecting and operating such parts in premium class cars. Practical tips regarding the use of used subassemblies in German cars can be found in the article Audi on second-hand parts – tuning and repairs without losing quality, which discusses the approach to refurbished and used elements in a way that is also useful for Mercedes owners.