Control Arm Mercedes W177 W247 Front Left N/S Lower Wishbone A2473331500

Control Arm Mercedes W177 W247 Front Left N/S Lower Wishbone is an original suspension system component from the Control Arms and Ball Joints category, designed for installation on the front axle on the driver's side. It ensures precise wheel guidance, driving stability, and predictable vehicle behavior during braking and cornering.

Specifications and technical data

• SKU: A2473307502
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2473307502
• Substitutable numbers: A2473307502, A 247 330 75 02, A2473331500, A 247 333 15 00
• Location on the vehicle: Front, Left
• Category: Control Arms, Ball Joints & Assemblies

Purpose and function in the suspension

The front lower control arm in Mercedes A-Class W177 and B-Class W247 models is responsible for maintaining proper suspension geometry and controlling wheel movement relative to the body. As a component operating in the longitudinal and transverse axes, it transfers loads from the road to the chassis, stabilizing the vehicle during changes in direction as well as during dynamic acceleration and braking.

Its placement on the front axle on the left side means this component has a direct impact on steering precision, which is particularly noticeable at the steering wheel. A functional control arm reduces unwanted play, improves steering response, and supports even tire wear.

Construction and technical compatibility

The presented item is a factory-made lower control arm designed to work with the independent front suspension used in Mercedes W177 and W247 models. The design includes integrated mounting points for the body and the steering knuckle, as well as a seat for the ball joint, which allows for smooth wheel movement within the suspension's range of motion.

Thanks to the use of original geometry, the control arm maintains the correct wheel camber and toe angles, which is crucial for safety and predictable handling. Proper fitment for the specific axle and side of the vehicle minimizes the risk of installation issues and eliminates the need for modifications.

Benefits of using an original control arm

Choosing an original front left control arm for the Mercedes W177 / W247 offers a number of practical advantages:

• preservation of factory handling characteristics and ride comfort,
• proper cooperation with other suspension components, such as springs, shock absorbers, and the stabilizer bar,
• reduction of vibrations and noise transmitted to the body,
• maintenance of correct wheel geometry after proper alignment.

As a result, the driver receives predictable, consistent vehicle behavior, and the suspension system operates within the parameters specified by the manufacturer.

Condition and service application

The item comes from disassembly and is offered as a used part, which is a cost-effective solution while maintaining the original technical specification. This type of component is suitable for both standard repairs after wear and tear and for replacement following mechanical suspension damage.

Replacing the control arm is particularly recommended in situations where there are knocking sounds in the front suspension, unstable handling, vehicle pulling to one side, or uneven tire wear. Selecting the correct component for the left side of the front axle allows for the restoration of proper suspension operating parameters.

Technical support and knowledge development

To better understand the role of control arms in the entire suspension system and to correctly assess the condition of other components, it is worth checking out our guide: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizer bars. The article helps with diagnosing symptoms of wear and planning comprehensive suspension repairs.

Related Mercedes suspension components

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 additional control arms, ball joints, or mounting hardware, check out the available parts in the Mercedes Control Arms and Ball Joints category.