Mercedes W212 E 220 CDI Front Left N/S Suspension Leg Brake Disc Wheel Hub

Mercedes W212 E 220 CDI Front Left N/S Suspension Leg Brake Disc Wheel Hub is a complete component from the Suspension replacement kits group, designed for installation on the front axle on the driver's side. This type of solution allows for a consistent replacement of key components in one area, which facilitates service and improves vehicle handling precision.

Specifications and technical data

• SKU: A2123203913-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2123203913
• Substitutable numbers: A2123203913, A 212 320 39 13, A2123320700, A 212 332 07 00, A2044212381, A 204 421 23 81, A2124211312, A 212 421 13 12, BG
• Weight: 150
• Location on the vehicle: Front, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the chassis system

The described element is an integrated assembly including the suspension strut, brake disc, and wheel hub, dedicated to the front left side of the vehicle. This combination of components is responsible for stable handling, transferring loads from the wheel to the body, and proper cooperation with the braking and steering systems.

Thanks to the factory design for the Mercedes E-Class W212 generation model with the E 220 CDI unit, the assembly maintains the correct geometry, which promotes even tire wear and predictable vehicle behavior during braking, acceleration, and cornering.

Benefits of using a complete kit

Using a complete suspension assembly with a disc and hub on one side of the vehicle reduces the risk of incompatibility between individual elements and speeds up workshop work. In practice, this means:

• consistent fitment of components within one side of the front axle,
• easier geometry check after installation,
• reduction in the number of potential play points and unwanted vibrations,
• more predictable operation of the braking system on the given wheel.

For the user, this translates into more stable handling, better vehicle control, and more comfortable operation in daily driving.

Installation characteristics and compatibility

The assembly is intended for installation on the front left side, which facilitates clear identification of the position in the vehicle and minimizes the risk of errors during selection. The design based on solutions used factory-wide in the Mercedes W212 E 220 CDI promotes the preservation of original mounting points and proper cooperation with standard steering and braking system elements.

The presence of assigned part numbers and interchangeable numbers in the technical specification allows for precise verification of compatibility with a specific equipment version and vehicle year, which is particularly important when working in a professional service center.

Condition of the element and practical application

The product comes from the used parts group, which is an attractive solution for users looking for a reasonable compromise between repair costs and maintaining the manufacturer's original design. In the case of chassis and braking systems, using elements from the disassembly of vehicles of the same brand and generation often allows for maintaining factory driving characteristics without having to resort to cheaper replacements with uncertain parameters.

Additionally, a properly selected suspension assembly with a disc and hub can be used both for standard repairs after wear and tear, as well as for replacement after mechanical damage in the area of the front left wheel.

Technical support and selection of other elements

If you are planning a comprehensive repair or upgrade of the front 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.

When planning broader service work, it is also worth considering the strategy of selecting used OEM components in other vehicle systems. The article describing when an original used part is a better choice than regeneration may be helpful – you can find details in the material Manual transmission failures in cars – why is an original used part a more sensible choice than regeneration?, which discusses the approach to repairs based on components from disassembly.