Mercedes W204 W207 Radiator Water Coolant Vent Hose Pipe Line A2045012325

Mercedes W204 W207 Radiator Water Coolant Vent Hose Pipe Line is an original cooling system component from the Hoses, pipes and lines group, designed for use in Mercedes vehicles. This used OEM part ensures factory-spec coolant flow geometry, which promotes stable engine operation and reduces the risk of overheating.

Specifications and technical data

• SKU: A2045012325-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2045012325
• Substitutable numbers: A2045012325, A 204 501 23 25
• Category: Hoses, Lines & Pipes

Technical characteristics of the cooling hose

The hose is designed as a component of the coolant transport system between key engine sub-assemblies. The properly selected internal diameter and routing shape support the correct circulation of the working medium, which is essential for maintaining a stable operating temperature of the power unit.

Original manufacturing for the Mercedes brand ensures the correct rigidity, flexibility, and fitment to factory mounts and connectors, which facilitates installation and minimizes the risk of leaks in the cooling system.

Purpose and fitment for Mercedes W204 / W207

Mercedes W204 W207 Radiator Water Coolant Vent Hose Pipe Line is dedicated for use in W204 and W207 platforms, allowing for compliance with the factory engine bay architecture. As a result, the hose routes the coolant exactly where the manufacturer intended, without interference with other accessory components.

Choosing an original hose with this reference limits the need for modifications, fitting universal hoses, or using additional clamps, which translates into more predictable cooling system performance in the long term.

Benefits of using an original hose

Using a hose from the Hoses, pipes and lines group intended for a specific generation of Mercedes allows you to maintain:

• stable coolant flow within the engine's operating temperature range,
• proper hose positioning relative to the fan, accessory belts, and body components,
• consistency with factory brackets and mounting points in the engine bay.

For workshops and users, this means faster installation, a lower risk of leaks, and easier diagnostics of potential cooling system issues in the future.

Part condition and service application

The offered hose is a used component, making it an attractive solution for vehicle maintenance where cost optimization is important while maintaining the original manufacturer's specifications. This type of component is suitable for both routine repairs and preventive replacements during major cooling system service work.

Thanks to the preservation of the factory design, the hose can be used as a direct replacement for a worn or damaged part, without the need to modify other system components.

Related components and technical knowledge

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

During service work, it is also worth expanding your knowledge on selecting used components for critical vehicle systems – you can find practical tips in the article Second-hand braking system: how to safely choose discs, calipers, and ABS?, which discusses best practices when purchasing components from the secondary market.