Mercedes W220 S350 Rear Left N/S Suspension Leg Brake Wheel Hub A2203509210

Mercedes W220 S350 Rear Left N/S Suspension Leg Brake Wheel Hub is a complete component from the Suspension replacement kits category, designed for installation on the rear axle on the driver's side. It is a practical solution for S-Class owners looking for a factory-spec suspension component integrated with the wheel hub and brake mounting, allowing for an efficient and technically correct repair.

Specifications and technical data

• SKU: A2203508908-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2203508908
• Substitutable numbers: A2203508908, A 220 350 89 08, A2203509210, A 220 350 92 10, A0024206583, A 002 420 65 83, A2204230112, A 220 423 01 12
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the vehicle

The presented Mercedes W220 S350 Rear Left N/S Suspension Leg Brake Wheel Hub has been designed specifically for the Mercedes S-Class W220 generation sedan in the S350 version. The component operates on the rear axle on the driver's side, responsible for stable wheel guidance, transferring loads from the body to the road, and the correct positioning of the brake disc and caliper relative to the hub.

By integrating several sub-assemblies into one module, the risk of installation errors is reduced, and the servicing of the suspension and braking system in this part of the vehicle is facilitated. This is particularly important in luxury vehicles, where precision geometry and ride comfort are crucial for maintaining proper driving characteristics.

Construction of the rear left suspension assembly

The offered item is a structural suspension assembly that houses the mounting points to the body, control arm guides, and the wheel hub seat. The integrated brake system mounting ensures the correct alignment of the caliper and disc relative to the wheel's axis of rotation, which translates into consistent brake performance and stable vehicle behavior during braking.

Such a design solution facilitates maintaining the correct rear axle geometry while shortening repair time – instead of replacing individual components, a complete suspension assembly can be used, which, after installation and wheel alignment, restores the proper operating parameters of the chassis.

Benefits of using an original suspension assembly

Using an original suspension assembly in a Mercedes W220 S350 allows for the preservation of factory handling and comfort characteristics. The design, tailored to the specific model, ensures:

• proper fitment with the body and other rear axle components,
• mounting geometry consistent with the manufacturer's design,
• stable seating of the wheel hub and brake components,
• reduced risk of incorrect wheel alignment relative to the body.

For the user, this means predictable vehicle behavior, even tire wear, and proper interaction with safety systems such as ABS or electronic stability control, which require precise wheel guidance.

Vehicle placement and installation aspects

The component is intended for installation on the rear axle on the left side, which is important both when selecting parts and when planning service work. Replacing the complete suspension assembly in this location is recommended in situations involving mechanical damage, structural corrosion, or post-collision deformations that could affect wheel geometry.

After installation, it is recommended to perform a full measurement and adjustment of the rear axle geometry to fully utilize the potential of the newly installed assembly and ensure even load distribution across all mounting points. This approach promotes long-term, stable suspension operation and reduces the risk of premature wear of tires and associated components.

Practical service application and selecting used suspension

In the case of luxury sedans such as the Mercedes S-Class W220 generation, the choice of the appropriate suspension assembly has a direct impact on ride comfort and safety. A used, original component from the Suspension replacement kits group can be a rational solution for post-accident or restoration repairs, provided it is correctly matched to the specific model version and professionally installed.

If you want to better understand the differences between standard and sport suspension, as well as approach the selection of used suspension parts consciously, it is worth reading the article: Standard vs. sport suspension – design differences and is it worth buying used suspension parts?. You will find practical tips, comparison tables, and answers to frequently asked questions regarding the selection of such components.

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 arms, brackets, or complete rear axle modules, check the available parts in the Mercedes suspension replacement kits category.