Mercedes W205 Cooler To Expansion Reservoir Bleed Line A2055018701

The Mercedes W205 Radiator Bleeder Hose is an original cooling system component from the cooling system hoses and pipes category, designed for Mercedes C-Class W205 models. Designed as an OEM part, it ensures proper radiator bleeding, stable system operation, and predictable engine thermal conditions.

Specifications and technical data

• SKU: A2055018701
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055018701
• Substitutable numbers: A2055018701, A 205 501 87 01
• Part type: Hose
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The Mercedes W205 radiator bleeder hose is responsible for the controlled removal of air from the coolant circuit. A properly functioning hose:

• stabilizes fluid circulation in the radiator and return lines,
• reduces the risk of overheating caused by air bubbles,
• facilitates system bleeding after replacing the radiator, coolant, or other cooling components.

Thanks to its tailored geometry and connector diameter, the hose integrates seamlessly with the factory Mercedes W205 cooling system, maintaining original flow characteristics.

Construction, Fit, and Installation

The offered Mercedes radiator bleeder hose is an OEM part, meaning it retains factory mounting points and proper routing within the engine bay. In practice, this translates to:

• precise fit to radiator and hose connectors without the need for modifications,
• correct positioning relative to other components (shields, harnesses, other hoses),
• maintaining the sealing of the cooling system with proper installation and the use of appropriate clamps.

Due to its OEM construction, installation is a near plug-and-play process – the mechanic utilizes the factory hose routing points, reducing service time and simplifying installation verification.

Component Condition and Service Application

This hose comes from the category of used Mercedes cooling system hoses and pipes, making it an attractive solution for routine repairs and restoring system functionality after a radiator or other component failure. This type of part is particularly useful when:

• the original hose has cracked, worn, or deformed,
• there are issues with bleeding the system after a coolant or radiator replacement,
• maintaining factory specifications without using aftermarket parts with uncertain fit is necessary.

Choosing an original part from a dismantled vehicle helps maintain the cooling system's integrity with solutions intended by the vehicle manufacturer.

Benefits of Using an Original Bleeder Hose

Using the original radiator bleeder hose in a Mercedes W205 offers a range of practical service and operational benefits:

• maintaining factory cooling characteristics and stable engine operating temperature,
• reducing the risk of system air ingress after any service intervention,
• easier diagnosis of potential leaks due to predictable hose routing,
• compatibility with original clamps and brackets, facilitating installation and future inspections.

For workshops specializing in Mercedes vehicles and owners who prioritize compliance with factory technical documentation, this is a solution consistent with the manufacturer's design principles.

More About the Cooling System and Related Parts

If you are interested in other Mercedes cooling system hoses and pipes, check out the Mercedes cooling system hoses and pipes available in our store to select parts that fit your car's specific configuration.

To better understand the impact of efficient bleeding and the overall condition of the radiator on engine longevity, it's worth consulting our service guide: Engine Cooling System – Overheating, Repair, and Used Radiators. You'll find practical tips on diagnosing and operating cooling systems in modern vehicles.