Mercedes W177 Coolant Hose Radiator Pipe Upper Left A2475010558

The Mercedes W177 Coolant Hose Upper Left Radiator Hose is a component from the Cooling System Hoses and Pipes category, designed for diesel engine cooling systems. It is responsible for the stable flow of coolant in the upper left section of the radiator, contributing to the safe operation of the engine. This is a practical solution for users looking for a reliable component for their compact Mercedes cooling system.

Specifications and technical data

• SKU: A2475010558
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2475010558
• Substitutable numbers: A2475010558, A 247 501 05 58
• Location on the vehicle: Left
• Fuel type: Diesel
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The presented hose is dedicated to Mercedes W177 vehicles with diesel engines. Its function is to guide coolant in the circuit between the upper part of the radiator and other system components. Its placement on the left side of the vehicle ensures proper routing of the pipe within the engine bay, maintaining appropriate bending radii and clearances from adjacent components.

Thanks to its tailored geometry and factory flow characteristics, the hose helps maintain a stable engine operating temperature, which is crucial for both engine longevity and the proper functioning of auxiliary equipment.

Construction and Fitment for Mercedes W177

The upper left radiator hose has been specifically designed for the engine bay architecture of the Mercedes W177. Its appropriate shape and the arrangement of its spigots and ends allow for:

• secure fitting onto radiator spigots and cooling system components,
• maintaining required distances from hot engine and exhaust system parts,
• reducing stress during engine operation and body vibrations.

This precise fit translates to predictable performance of the hose during its service life and facilitates installation in service conditions.

Operating Characteristics in Diesel Engines

Diesel engines generate specific thermal and mechanical loads, therefore, the coolant hose for this application must withstand higher pressures and frequent temperature changes. The hose's construction is adapted to:

• continuous operation in the elevated temperature range typical for diesel units,
• pressure pulsations in the cooling system during acceleration and engine braking,
• vibrations transmitted from the engine block to the auxiliary components.

These properties promote stable coolant circulation and help reduce the risk of engine overheating in daily use.

Condition, Service Application, and Benefits of Installation

The offered item is a used part, making it an attractive alternative to new components while maintaining factory fitment for a specific Mercedes generation. In practice, this means the possibility of replacing a damaged or leaking hose without the need for cooling system modifications.

Replacement of the upper left radiator hose is recommended in situations such as:

• visible cracks or signs of material aging,
• coolant leaks around connections,
• hose deformation affecting free fluid flow.

A correctly chosen hose from this category helps restore the system's proper seal, which directly impacts engine safety and driving comfort.

Technical Support and Additional Materials

If you are interested in other Mercedes Cooling System Hoses and Pipes, check out the available Mercedes Cooling System Hoses and Pipes in our store to select components that fit your car's specific configuration.

You can find more information about the role of hoses and radiators in engine protection in our guide article Engine Cooling System – Overheating, Repair, and Used Radiators, which discusses the impact of a functional cooling system on engine lifespan in various car models.

If you want to better plan your repair budget, it is also worth familiarizing yourself with the material Rising Repair Costs and the Boom in Used Parts – How to Save on Car Servicing?, which describes a practical approach to choosing used OEM parts in everyday vehicle maintenance.