Mercedes W447 W448 Front Wishbone Control Arm Right O/S A4473301507

Mercedes W447 W448 Front Wishbone Control Arm Right O/S is a component from the Control arms and ball joints group, designed for use in the front suspension on the right side. Using a genuine component of this class allows for maintaining proper suspension geometry, stable handling, and predictable vehicle behavior during braking and cornering.

Specifications and technical data

• SKU: A4473301507
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4473301507
• Substitutable numbers: A4473301507, A 447 330 15 07
• Location on the vehicle: Front, Right
• Category: Control Arms, Ball Joints & Assemblies

Purpose and function in the suspension

The offered control arm is dedicated to the front axle on the right side, where it is responsible for the precise guidance of the wheel relative to the body. As a structural element of the suspension, it works with other system components, transferring vertical and lateral loads and maintaining a stable position of the hub relative to the body.

A properly selected control arm in Mercedes vehicles is crucial for:

• maintaining correct wheel alignment and camber angles,
• limiting unwanted play in the suspension,
• increasing the predictability of steering system response,
• reducing vibrations transmitted to the body.

Benefits of using a genuine control arm

Using a genuine control arm in the front right corner of the vehicle allows for maintaining factory suspension performance parameters. The design, tailored to a specific body platform, ensures appropriate stiffness, correct deflection characteristics, and compatibility with stock ball joints and other system elements.

The most important advantages include:

• Factory geometric fit – no need for mounting modifications or additional adjustments of the component.
• Consistent cooperation with stock suspension components, which facilitates diagnostics and adjustment after installation.
• The ability to restore original ride comfort and directional stability after replacing a worn component.

Vehicle placement and installation aspects

The control arm is intended for installation in the front area on the right side, which is important both when selecting parts and when planning service work. Correct identification of the installation side minimizes the risk of selecting the wrong component and speeds up the repair process.

After installation, it is recommended to perform:

• an inspection of all mounting points for play and correct tightening,
• a check of the condition of cooperating ball joints and bushings,
• suspension geometry adjustment to obtain correct driving parameters.

Application in service practice

Replacing the front right control arm is a typical operation for symptoms such as unstable handling, suspension knocking, or uneven tire wear. Using a component from the Control arms and ball joints group matched to a specific model allows for the effective removal of these symptoms and the restoration of predictable vehicle behavior.

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 the available parts in the Mercedes control arms and ball joints category.

Technical support and suspension knowledge

To better plan service work on the suspension system, it is worth using materials describing the relationships between shock absorbers, control arms, and stabilizers, their impact on safety, and typical signs of wear. Practical tips regarding diagnostics and operation can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which helps in consciously choosing a repair strategy.

If you are considering a choice between new and used components and want to compare cost and operational aspects, the guide Car parts – new or used? We compare costs, quality, and durability, which discusses practical criteria for selecting spare parts, may also be helpful.