Mercedes W176 W246 Rear Left N/S Suspension Leg Wheel Hub Knuckle Brake Disc

The Mercedes W176 W246 Rear Left Suspension Knuckle Disc Caliper is an original drivetrain component designed for the rear axle, left side, in Mercedes compact class vehicles. This complete knuckle assembly with disc and caliper provides a solid foundation for professional suspension repair, restoring proper wheel alignment and stable vehicle handling. Thanks to its design conforming to manufacturer solutions, the part ensures predictable vehicle behavior and correct cooperation with other suspension components.

Specifications and technical data

• SKU: A2463503541-3
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2463503541
• Substitutable numbers: A2463503541, A 246 350 35 41, A2463340006, A 246 334 00 06, A0004232381, A 000 423 23 81, A2464230012, A 246 423 00 12
• Location on the vehicle: Rear, Left
• Category: Control Arms, Ball Joints & Assemblies

Purpose and Function in the Suspension System

The rear left knuckle in Mercedes W176 and W246 models is a key element connecting the wheel hub, control arms, and braking system. It is responsible for:

• stable wheel mounting relative to the body,
• maintaining correct suspension geometry (toe, camber),
• transferring loads from the road to the body through the control arm and ball joint system,
• correct positioning of the brake disc and caliper relative to each other.

The complete assembly with disc and caliper simplifies servicing, reducing the number of separate assembly operations and minimizing the risk of incorrect system assembly.

Assembly Structure: Knuckle, Disc, Caliper

The presented assembly utilizes a design typical for modern compact Mercedes vehicles, optimized for stiffness and durability. The knuckle provides precise mounting points for control arms and ball joints, which translates to confident rear axle handling and predictable responses to uneven surfaces. The integrated brake disc and caliper allow for maintaining proper braking force and even pad wear.

The placement specified as rear left eliminates the risk of error when selecting the mounting side and facilitates the mechanic's work, especially when replacing multiple suspension components simultaneously.

Benefits of Using an Original Rear Knuckle

Using an original knuckle with disc and caliper in a Mercedes W176 or W246 allows for maintaining factory handling and braking parameters. The most significant advantages include:

• Compatibility with the factory control arm and ball joint system – maintaining manufacturer-specified mounting points.
• Consistency with the braking system – correct disc positioning relative to the caliper, promoting even pad operation.
• Reduction of vibrations and noise – proper suspension geometry reduces stress on other drivetrain components.
• Seamless integration with standard Mercedes solutions – no need for modifications or adaptations.

For the user, this means more confident vehicle behavior in corners, stability at higher speeds, and predictable braking system performance.

Professional Installation and Practical Application

The rear left knuckle with disc and caliper is intended for installation in Mercedes vehicles where restoring factory suspension geometry is required after a collision, corrosion, or wear and tear. When replacing, it is recommended to:

• check the condition of other rear axle suspension components,
• inspect for play in ball joints and control arm bushings,
• after installation – perform wheel alignment at a professional service center.

This approach allows for the full utilization of the potential of the newly installed knuckle and ensures stable, predictable vehicle handling in daily use.

More About Suspension and Selection of Related Components

For drivers and mechanics who want to better understand suspension operation and the impact of knuckles, control arms, and stabilizers on driving safety, we recommend the guide article: Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers. This is a practical source of knowledge on the diagnostics and operation of key drivetrain components.

If you are planning a comprehensive repair or upgrade of the suspension area in your Mercedes and need other parts from the same group, such as additional knuckles, control arms, or ball joints, check the available parts in the Mercedes Control Arms and Ball Joints category.

To maximize the potential of used suspension components and other assemblies, it is worth familiarizing yourself with practical tips on maintenance and operation: How to Extend the Lifespan of Used Car Parts?. This will ensure that the rear left knuckle in your Mercedes operates stably for a long time.