Mercedes-Benz CLC-Class CL203 Insulation Rear Right O/S Wheelhouse A2036821041

Mercedes CL203 rear right wheel arch insulation is a factory body part designed to protect the inner part of the rear axle wheel arch on the right side. It is responsible for reducing road noise, protecting the body panels from dirt, and stabilizing the operating conditions of the suspension in this area. Thanks to its construction, compliant with the manufacturer's solutions, the part ensures a proper fit to the body and facilitates precise installation.

Specifications and technical data

• SKU: A2036821041
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2036821041
• Substitutable numbers: A2036821041, A 203 682 10 41, EM
• Location on the vehicle: Rear, Right
• Category: Other Exterior Parts & Accessories

Purpose and Function of the Part

The rear right wheel arch insulation in Mercedes CL203 models performs several important operational tasks:

• limits the ingress of water, mud, and road salt into the wheel arch cavity,
• stabilizes airflow around the wheel, which promotes even operation of suspension components,
• creates an additional acoustic barrier between the tire and the passenger cabin,
• protects cables, brackets, and mounting elements located in the rear part of the body.

The placement on the vehicle specified as rear – right side allows for unambiguous identification of the mounting position and avoids errors in part selection.

Compatibility and Mounting Fit

The insulation discussed has been designed as a dedicated part for a specific body area, which translates to a proper fit with factory mounting points. The use of original geometry:

• facilitates installation without the need for modifications,
• ensures correct adhesion to the wheel arch edges,
• minimizes the risk of play, vibrations, and unwanted noises during driving.

Such a fit is particularly important in Mercedes-class vehicles, where the precision of body part installation affects both acoustic comfort and the durability of anti-corrosion protection.

Product Characteristics and Condition

The rear right wheel arch insulation offered in this listing is an original Mercedes part, sourced from disassembly. The used nature of the part allows for a favorable cost-to-quality ratio, while maintaining compliance with factory design solutions.

Choosing original wheel arch insulation over an aftermarket alternative helps maintain material consistency with other body components, which is important for long-term vehicle operation and potential future bodywork and paint repairs.

Benefits of Using Rear Right Wheel Arch Insulation

The use of properly selected insulation in the rear right wheel arch area translates into a number of practical benefits:

• better body protection against corrosion in an area particularly exposed to external factors,
• reduction of dirt accumulation in the wheel arch recesses,
• reduction of noise generated by tires and the road surface,
• more stable operating conditions for suspension components and mountings in the rear of the vehicle.

For users who pay attention to the refinement of suspension operation and long-term body durability, an efficient wheel arch insulation is an important element of service prevention.

If you are planning a comprehensive repair or upgrade of the body area in your Mercedes and need other parts from the same group, such as covers, brackets, or additional protective panels, check the available parts in the Other Mercedes category.

Technical Support and Component Knowledge

When selecting body parts, insulation, and accompanying components, it is advisable to use reliable sources of technical information. To compare design solutions used in higher-class vehicles and understand the differences in the construction of powertrains and chassis, you can refer to the guide material Audi RS vs. Other Models – What's Under the Hood and Chassis?, which shows how premium manufacturers design key vehicle areas for performance and durability.