Mercedes R231 Front Windshield Heater Wiper Arms A2318201340

Mercedes R231 Front Windshield Heater Wiper Arms is an original component from the Wiper arms group, designed for operation on the windshield in Mercedes vehicles. The use of a factory-fitted solution with a heating function improves user comfort in difficult weather conditions and ensures stable, predictable operation of the wiper system.

Specifications and technical data

• SKU: RHD-A2318201340-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2318201340
• Substitutable numbers: A2318201340, A 231 820 13 40, A2318201744, A 231 820 17 44
• Location on the vehicle: Front
• Category: Wiper Arms

Purpose and technical function

The presented wiper arms are designed for installation in the front part of the vehicle, in the windshield area. Their task is to transfer movement from the drive mechanism to the wiper blades and maintain proper pressure against the glass, which translates into even removal of water and impurities.

The version with heating supports the system's operation in low temperatures, reducing the risk of the arms freezing to the glass and improving the wipers' readiness for operation after starting the vehicle. This solution is particularly beneficial in cars used all year round, in variable weather conditions.

Construction and fitment for Mercedes R231

The arms have been constructed in accordance with the vehicle manufacturer's standards, which ensures proper geometry, operating angle, and compatibility with the factory wiper mechanism. The appropriately selected length and profile of the arms allow for effective cleaning of the windshield in the area provided by the body manufacturer.

Thanks to the use of the original design, the correct resting position of the wipers is maintained, as well as proper cooperation with the blades intended for this model. Such a fit reduces vibration, noise, and uneven adhesion of the blades to the glass.

Condition, verification, and installation aspects

The item comes from the secondary market, which allows for an economical replacement while maintaining the characteristics of a factory part. Before installation, it is recommended to perform a standard check of the mounting sockets, joints, and wires responsible for the heating function to confirm their proper operation in the specific vehicle.

In practice, the installation of wiper arms in this model comes down to correctly setting the position on the splines or other type of mount and securing the element in accordance with the service procedure. Proper setting of the starting position is crucial to avoid collision with the edge of the windshield or the vehicle's hood.

Benefits of using original wiper arms

Using original arms in the Mercedes R231 allows for maintaining the factory operating characteristics of the wiper system, which translates into:

• stable guidance of the blades on the glass throughout the full range of operation,
• better visibility in rain and snow thanks to even pressure,
• reduction of noise and vibration during wiper operation,
• visual consistency with the body line and other cowl elements.

Additionally, the arm heating function supports operation in winter conditions, which is important for drivers expecting predictable wiper system performance immediately after starting the vehicle.

If you are planning a comprehensive repair or modernization of the windshield area in your Mercedes and need other elements from the same group, such as additional arms, mounts, or compatible wiper system components, check the available parts in the Mercedes Wiper arms category.

For users interested in a broader approach to vehicle service, including the selection of drivetrain elements and secondary market parts, the guide article Clutch and dual-mass flywheel – diagnostics and selection of parts for the drivetrain may be helpful, as it shows how to consciously choose components and plan service work in a car.