Mercedes W205 Water Hose Engine Coolant Cooling Pipe Line M264 A2642001001

The Mercedes W205 Engine Coolant Hose Pipe Water M264 is an original cooling system component from the Cooling System Hoses and Pipes group, designed for M264 series engines. It is responsible for precise coolant flow, supporting stable engine operating temperature and reducing the risk of overheating. Thanks to its factory fit for the Mercedes W205 construction, it ensures secure installation and predictable performance.

Specifications and technical data

• SKU: A2642001001
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2642001001
• Substitutable numbers: A2642001001, A 264 200 10 01
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The presented water hose is part of the coolant flow path in the M264 engine, used in Mercedes W205 class models. Its task is to maintain a sealed, stable connection between cooling system components such as the engine block, return circuit, and heat exchange elements. The appropriately shaped geometry of the hose allows for collision-free routing within the engine bay, maintaining required bending radii and clearances from other components.

Construction and Fit for Mercedes W205

The original water hose for the M264 engine has been specifically designed for the architecture of the unit and the W205 body, which translates to:

• precise positioning of the connectors relative to the ports in the engine and accessories,
• appropriate rigidity and flexibility of the material in areas prone to vibration,
• maintenance of the correct flow cross-section for the coolant.

This ensures an orderly installation without the need for modifications or adjustments, and the cooling system maintains its designed flow parameters. Factory fit for the Mercedes construction reduces the risk of leaks resulting from improper hose routing.

Benefits of Using an Original Water Hose

Using a water hose dedicated to the M264 engine in the Mercedes W205 offers a range of practical operational benefits:

• maintaining stable engine operating temperature thanks to proper coolant circulation,
• reducing the risk of leaks at connections due to the correct end profile,
• compatibility with factory brackets and guides in the engine bay,
• easier cooling system diagnostics and servicing, as the hose routing matches the manufacturer's documentation.

Original Mercedes origin signifies adherence to the quality standards intended for this model, which is particularly important in a sensitive area like engine cooling.

Item Condition and Service Application

The water hose is offered in used condition, making it an attractive service solution for users seeking a compromise between repair cost and maintaining original specifications. This type of component is suitable for:

• repairs after cooling system failure (cracks, leaks),
• preventive replacement of worn hoses during major engine work,
• restoring the full functionality of the original cooling system in the Mercedes W205.

Choosing a used, original hose allows for compliance with the manufacturer's design while limiting costs compared to new, unknown-origin aftermarket parts.

Cooling System Expansion and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as additional pipes, return hoses, or radiator connection sections, check the available parts in the category Mercedes Cooling System Hoses and Pipes.

To better understand how thermal loads affect the durability of hoses and the entire cooling system, it is worth reading our guide: Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings. For those planning a wider range of service work on their car, the material on sourcing used parts in one place may also be useful: Comprehensive Supply: From Engine to the Smallest Clip.