Mercedes-Benz C CLK W203 W209 1 Radiator Water Coolant Hose Pipe A2038300796

Mercedes-Benz C CLK W203 W209 1 Radiator Water Coolant Hose Pipe is a cooling system component designed for the precise discharge of heated fluid from the engine to the radiator in Mercedes C-Class and CLK models. Thanks to its factory-spec geometry and perfectly matched connector diameters, the hose ensures stable fluid flow and helps maintain the proper operating temperature of the powertrain. This used component from the original production line is a sensible choice for cooling system maintenance when you prioritize a fit consistent with the manufacturer's specifications.

Specifications and technical data

• SKU: A2038300796-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2038300796
• Substitutable numbers: A2038300796, A 203 830 07 96, EM
• Category: Hoses, Lines & Pipes

Purpose and function of the radiator hose

The presented hose is part of the coolant transport system between the engine and the radiator in Mercedes C-Class W203 and CLK W209 vehicles. It is responsible for:

• guiding the coolant flow in the correct direction,
• maintaining connection tightness at high operating temperatures,
• compensating for powertrain vibrations thanks to its flexible design,
• stable cooperation with cooling system clamps and connectors.

A properly selected radiator hose reduces the risk of engine overheating, leaks, and pressure drops in the cooling system, which translates into safe and consistent powertrain operation.

Benefits of using an original Mercedes component

Choosing a radiator hose dedicated to specific Mercedes models allows you to maintain the parameters intended by the manufacturer. The original component from the Lines, hoses, and pipes group ensures:

• geometry matched to the cooling system in W203 and W209 bodies,
• correct positioning relative to the fan, radiator, and engine accessories,
• compatibility with factory connectors and clamps,
• preservation of the flow cross-sections intended by the manufacturer.

As a result, installation is efficient, without the need for modifications, and the cooling system maintains parameters close to factory standards.

Performance characteristics and installation

The radiator hose used in Mercedes C-Class and CLK models has been designed to operate under variable thermal and mechanical conditions. Its flexible construction allows for the compensation of engine movements, while the appropriately selected length and shape minimize the risk of hose kinking.

During installation, it is recommended to:

• check the condition of the connectors and hose clamps,
• verify the patency of the cooling system after replacement,
• bleed the system according to the service procedure for the specific model.

This approach allows you to fully utilize the potential of the part and reduce the risk of needing further cooling system interventions.

Part condition and service application

The offered hose comes from dismantling and is intended for users looking for a service solution with a favorable cost-to-quality ratio. A used original component often fits installation requirements better than replacements with universal geometry, which is especially important in the tightly packed engine bay of W203 and W209 models.

Before installation, it is worth verifying the part's compatibility with the specific engine version of the vehicle to maintain full compatibility with the existing cooling system.

Expanding Mercedes cooling system service

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional fluid lines, flexible return hoses, or rigid fluid pipes, check the available parts in the Mercedes lines, hoses, and pipes category.

If you are considering a wider replacement of components from dismantling and want to better understand how used components can affect the appearance and functionality of your car, read the article on using used body parts and other components from dismantling, which discusses practical aspects of selecting such sub-assemblies in premium brand vehicles, including Mercedes.