Mercedes R172 W205 Water Coolant Feed Line Pipe Hose Left Cylinder A2762002052

Mercedes R172 W205 Water Coolant Feed Line Pipe Hose Left Cylinder is an original cooling system component from the Lines, hoses and pipes group, designed for precise coolant routing at the left side of the engine cylinder head. This used OEM component ensures proper geometry, fitment to connectors, and stable cooling system operation in Mercedes vehicles, without the need for installation modifications.

Specifications and technical data

• SKU: A2762002052
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2762002052
• Substitutable numbers: A2762002052, A 276 200 20 52
• Location on the vehicle: Left
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The described hose is designed as a cooling system component for the left side of the engine cylinder head, taking into account the characteristic coolant routing in Mercedes designs. It is responsible for the stable flow of fluid between the cylinder head and other system components, which is crucial for maintaining the correct operating temperature of the engine unit.

Thanks to its factory geometry and properly selected inner diameter, the hose works with standard connectors and clamps, reducing the risk of leaks and unwanted stress. Proper fitment of the coolant hose translates into uniform cylinder cooling and thermal stability of the engine, which is important both in daily operation and under higher engine loads.

Construction, fitment and installation

The cylinder head coolant hose is manufactured as a molded component, with a shape adapted for installation in the engine bay of Mercedes vehicles. The hose profile accounts for the routing relative to adjacent components, which facilitates installation and minimizes the risk of rubbing against metal or moving parts.

The location on the vehicle on the left side allows for clear identification during assembly and service. In practice, this means that a mechanic can quickly verify the correct orientation of the hose and connection points, which reduces replacement time. Original fitment to the Mercedes cooling system eliminates the need for universal replacements, which often require trimming or additional clamps.

Benefits of using an original hose

Using a cylinder head coolant hose dedicated to specific Mercedes models brings a number of practical benefits:

• maintaining the factory cooling system routing in the engine bay,
• reducing the risk of leaks due to proper fitment to connectors,
• stable thermal operating conditions for the engine unit,
• easier diagnostics and service thanks to the clear left-side positioning.

For the user, this means more predictable operation and a lower risk of engine overheating resulting from improper cooling system performance. Selecting a hose compatible with the cylinder head design is particularly important in modern units where temperature tolerances are strictly defined.

Characteristics of the used product

The item comes from disassembly and is offered as a used part, which represents a reasonable compromise between cost and maintaining the manufacturer's original specifications. In practice, this means the ability to restore proper cooling system operation without the need to invest in a new component, while maintaining factory fitment.

Choosing a used coolant hose from the OEM offer is often preferred by workshops specializing in the Mercedes brand, which prioritize compliance with the factory design and predictable material behavior in the long term.

System expansion – other lines and hoses for Mercedes

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 coolant lines, return hoses, or connecting pipes, check the available parts in the Mercedes lines, hoses and pipes category.

More about selecting used parts

If you want to better understand how to consciously choose used cooling system components and other consumables for popular car models, it is worth checking our guide. Practical tips on selecting original parts from the secondary market can be found in the article The best used car parts – a guide to the most frequently chosen original parts.