Mercedes-Benz W221 350 BlueTec Rear Left N/S Suspension Leg Brake Disc Wheel Hub

Mercedes-Benz W221 350 BlueTec Rear Left N/S Suspension Leg Brake Disc Wheel Hub is a complete, used component from the Suspension replacement kits group, designed for installation on the rear axle on the driver's side. Integrating the suspension strut, wheel hub, and brake disc into a single assembly facilitates servicing, reduces repair time, and helps maintain the factory handling characteristics of the S-Class limousine.

Specifications and technical data

• SKU: A2213502108
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2213502108
• Substitutable numbers: A2213502108, A 221 350 21 08, A2214230381, A 221 423 03 81, A2213501910, A 221 350 19 10, A2214231012, A 221 423 10 12, A2214230412, A 221 423 04 12, BG
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and vehicle placement

The presented suspension assembly is designed for the rear left side of the vehicle, which is crucial for the correct selection of parts for the Mercedes S-Class W221 350 BlueTec model. Integrating the suspension load-bearing elements with the hub and brake disc ensures geometric consistency, handling stability, and proper cooperation with the braking system and safety features.

An assembly configured in this way is particularly useful for post-collision repairs, replacing worn suspension components, or restoring the vehicle's original driving properties when it is necessary to replace several elements within one axle corner simultaneously.

Assembly construction: suspension strut, hub, and brake disc

The rear left suspension assembly for the W221 350 BlueTec includes key components responsible for load bearing, wheel guidance, and cooperation with the braking system. Using a complete module reduces the risk of individual part mismatch and facilitates technical condition checks during installation.

Combining the wheel hub with the brake disc in one assembly promotes axial alignment and uniform operation of the braking system, which translates into stable braking and predictable vehicle behavior during intensive use.

Benefits of using an original Mercedes suspension assembly

The original suspension assembly dedicated to the Mercedes-Benz W221 350 BlueTec provides:

• Factory fitment to the rear axle structure, without the need for modifications or adaptations.
• Consistent cooperation with the stock braking system and vehicle electronics.
• Easier installation thanks to the use of a complete module instead of individual components.
• The ability to restore the original comfort and stability characteristics typical of the S-Class.

For workshops and users, this means shorter repair times, fewer potential points of failure, and greater predictability of the final result after replacement.

Condition, origin, and application in service practice

The item comes from dismantling and is offered as a used suspension assembly, which represents a reasonable compromise between repair costs and maintaining the original quality of Mercedes construction. This type of solution is often chosen for repairing vehicles used intensively, where both durability and service economy are important.

Before installation, a standard workshop procedure is recommended: verification of the working condition, checking for play, and assessing the working surfaces for further operation. A correctly selected and installed assembly allows for stable rear axle operation and the maintenance of the driving comfort characteristic of W221 350 BlueTec models.

Selection, compatibility, and technical support

The product has a dedicated OEM part number and a set of interchangeable numbers, which facilitates precise identification in service catalogs and parts selection systems. This allows for verifying compatibility with the specific engine and equipment version of the Mercedes-Benz W221 350 BlueTec, minimizing the risk of purchasing an incorrect item.

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

To better understand the differences between stock and sports suspension configurations and to make an informed decision on when it is worth choosing used components, it is worth reading the article: Stock vs. sports suspension – design differences and is it worth buying used suspension parts?.