Mercedes W211 W219 CDI Rear Left Suspension Leg Brake Disc Wheel Hub

Mercedes W211 W219 CDI Rear Left Suspension Leg Brake Disc Wheel Hub is a chassis component responsible for the precise guidance of the rear wheel and a stable connection between the suspension, braking system, and the vehicle body. Thanks to the factory design for Mercedes models, the correct axle geometry is maintained, which translates into safe handling and predictable vehicle behavior. This solution is intended for users who expect consistency with the original suspension architecture.

Specifications and technical data

• SKU: A2113508308
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2113508308
• Substitutable numbers: A2113508308, A 211 350 83 08, A2113501656, A 211 350 16 56, A0024202783, A 002 420 27 83, A2114230912, A 211 423 09 12, BG
• Weight: 150
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the suspension system

The described rear left steering knuckle operates in the drive axle suspension area, where it transfers vertical, lateral, and longitudinal loads between the wheel, control arms, and the body. It is a key mounting point for suspension and brake components, ensuring:

• stable seating of the wheel hub and braking system components,
• maintenance of the specified wheel geometry on the rear axle,
• cooperation with control arms and other components from the suspension group,
• proper wheel guidance throughout the full range of suspension travel.

The placement on the vehicle in the rear left zone allows for precise fitting to the body structure and suspension system of specific Mercedes models.

Compatibility and interchangeable numbers

The steering knuckle belongs to the Suspension replacement kits group, which facilitates selection as part of comprehensive rear axle maintenance. The element has a dedicated OEM part number and associated interchangeable numbers, which allows for technical verification of compatibility with a specific vehicle version. This makes it possible to:

• match the correct body variant and drivetrain,
• easily compare with the currently installed part,
• minimize the risk of purchasing an unsuitable component.

If necessary, it is worth comparing the markings with service documentation or the manufacturer's catalog to confirm full installation compatibility.

Structural characteristics and installation

The rear left steering knuckle has been designed to work in demanding operating conditions, typical for the drive axle in Mercedes-class cars. The construction is intended to work with suspension elements, brakes, and the wheel, ensuring:

• adequate stiffness in the area of control arm and hub mounts,
• stable wheel guidance under dynamic loads,
• the ability to maintain factory toe and camber settings.

During installation, it is recommended to check the rear axle geometry after replacement to fully utilize the advantages of a correctly selected steering knuckle and avoid uneven tire wear or deterioration of vehicle stability.

Benefits of using an original Mercedes steering knuckle

Using a steering knuckle dedicated to Mercedes W211 and W219 CDI models allows for maintaining consistency with the factory suspension design. The main advantages include:

• maintaining the original handling characteristics – the vehicle reacts predictably to steering maneuvers and load changes,
• proper cooperation with the braking system and wheel in the rear left zone,
• the ability to use existing mounting points without interfering with the body structure.

For users who value consistency with factory solutions, this is a solution that allows for a technically correct repair or replacement of the element within the suspension.

Technical support and additional materials

To better understand the relationships between the steering knuckle, control arms, and other suspension components, it is worth reading the guide material describing the construction and servicing of the chassis system: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. This will allow you to consciously plan service work within the rear axle.

If you are planning a comprehensive repair or upgrade of the suspension zone in your Mercedes and need other elements from the same group, such as steering knuckles, control arms, or mounts, check the available parts in the Mercedes suspension replacement kits category.