Mercedes W203 W210 Rod Strut Wheel Suspension Rear Axle Left Right A2103503806

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes W203 W210 Rod Strut Wheel Suspension Rear Axle Left Right is an original suspension component designed for the rear axle, on both the left and right sides. Designed by Mercedes, it ensures proper wheel geometry, handling stability, and predictable vehicle behavior during acceleration, braking, and cornering. This is a solution for users looking for parts with factory performance characteristics and structural fit.

Specifications and technical data

• SKU: A2103503806
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2103503806
• Substitutable numbers: A2103503806, A 210 350 38 06, A2013520988, A 201 352 09 88
• Location on the vehicle: Rear, Right, Left
• Category: Tie Rods & Steering Linkages

Purpose and function in the suspension

The rear axle control arm in Mercedes W203 models is responsible for the precise guidance of the wheel relative to the body and for maintaining the specified toe and camber angles. This component operates within a multi-link suspension system, transferring vertical and lateral loads, as well as compensating for suspension movements when driving over uneven surfaces. The use of the same type of control arm on both the left and right sides facilitates part selection and allows for consistent characteristics across the entire axle.

Construction and vehicle fitment

The control arm is structurally adapted to the rear part of the vehicle body, with a dedicated placement on the vehicle: rear, right, left. Properly shaped mounting points work with factory bushings and pins, which allows for maintaining the stock suspension performance parameters. Thanks to this, correct geometry adjustment is possible after installation, without the need for non-factory modifications.

Benefits of using an original Mercedes control arm

Using an original control arm in the suspension system provides a number of practical benefits:

• Factory fitment – maintaining the correct position of the wheel relative to the body and other suspension components.
• Consistent performance characteristics – in line with the vehicle manufacturer's design assumptions.
• Stable handling – correct transfer of longitudinal and lateral forces contributes to driving confidence.
• Possibility of correct geometry adjustment – after installation, wheel toe and camber can be precisely set.

The item from the Steering rods and ends category works with other chassis components, creating a coherent system responsible for the vehicle's steerability and safety.

Condition, installation, and practical application

The part is offered in used condition, which allows for an economical suspension repair while maintaining the manufacturer's original specifications. Before installation, standard workshop verification and subsequent rear axle geometry adjustment are recommended to fully utilize the component's potential. The control arm is suitable both for typical repairs after wear and tear and for replacement after mechanical damage.

Part selection and additional information

To ensure you are choosing the right component for your car, it is worth comparing the parameters with the vehicle data and using the information available in the steering and suspension parts category. This minimizes the risk of error when selecting a rear axle component.

If you are considering a wider modernization or repair using aftermarket parts, the guide on our blog may be helpful: how to safely choose used car parts. For those planning modification and vehicle personalization projects, the article on the most common mistakes when buying used tuning parts will be particularly useful, allowing for better planning of investments in the chassis and suspension.