Mercedes-Benz W202 W208 Heat Exchanger Water Coolant Hose Pipe A2028326494

Mercedes-Benz W202 W208 Heat Exchanger Water Coolant Hose Pipe is an original cooling system component from the Lines, hoses and pipes group, designed for use in Mercedes C-Class and CLK models of the W202 and W208 generations. This used part allows for an economical yet technically correct repair of the coolant circuit, while maintaining the factory hose routing geometry.

Specifications and technical data

• SKU: A2028326494
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2028326494
• Substitutable numbers: A2028326494, A 202 832 64 94, KZ
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The described water hose is responsible for the stable routing of coolant between cooling system components in Mercedes C-Class W202 and CLK W208 cars. A properly selected hose ensures:

• maintenance of coolant circuit tightness,
• resistance to typical temperature and pressure loads in the engine,
• proper positioning relative to other components, which reduces the risk of chafing and vibrations.

By maintaining the factory shape and diameter, the hose minimizes the risk of local flow restrictions, which promotes stable cooling system operation and uniform heat dissipation from the power unit.

Application in Mercedes vehicles

The element has been designed specifically for Mercedes vehicles from the C and CLK family of the W202/W208 generation, which translates into proper fitment to mounts, connectors, and accessories in the engine bay. In practice, this means:

• easier installation without the need for modifications,
• compliance with factory hose routing,
• maintenance of clearances provided by the manufacturer relative to the fan, covers, and other sub-assemblies.

Such fitment is particularly important in vehicles with a densely packed engine bay, where every hose must operate in a strictly defined position.

Performance characteristics and installation

As an element from the Lines, hoses and pipes group, the water hose for the Mercedes C/CLK W202/W208 has been designed to operate in an environment exposed to temperature changes, contact with coolant, and vibrations transmitted from the power unit. When replacing, it is worth paying attention to:

• the condition of the sealing surfaces at the connectors,
• correct positioning of the hose relative to factory brackets,
• inspection of other cooling system elements (clamps, connectors, radiator).

A properly selected and installed hose reduces the risk of coolant leaks, engine overheating, and the need for repeated repairs in a short time.

Benefits of using an original Mercedes hose

Using an original water hose in a Mercedes C or CLK W202/W208 allows for maintaining the structural integrity of the cooling system. The most important advantages include:

• factory fitment for the specific vehicle platform,
• predictable behavior under thermal and pressure loads,
• reduction of the risk of collision with other engine accessory components.

For users who plan longer vehicle operation, choosing an original hose is a reasonable compromise between cost and the durability and safety of engine operation.

Expanding the cooling system in a Mercedes

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

When planning broader service work within the drive and torque transmission system, a practical guide regarding used components may be helpful – you can find more information in the article Second-hand differential – what is worth knowing about used differentials, sensors, and drive systems.