Vent Line Mercedes W205 Diesel OM626 Water Hose To Air Intake A6262030017

Vent Line Mercedes W205 Diesel OM626 Water Hose To Air Intake is a cooling system component designed for OM626 diesel engines in Mercedes C-Class W205 generation models. This used water hose from this series allows for a technically correct replacement of a worn section of the cooling system, while maintaining the factory fluid routing geometry and proper fitment to engine accessories. It is a practical solution for users who want to restore proper coolant circulation without interfering with the engine unit's design.

Specifications and technical data

• SKU: A6262030017-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6262030017
• Substitutable numbers: A6262030017, A 626 203 00 17
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The water hose in the Diesel OM626 engine is responsible for the controlled flow of coolant between individual system components, such as the engine block, cylinder head, or heat exchanger. A properly selected water pipe:

• ensures stable operating temperature of the engine unit,
• reduces the risk of overheating under load,
• maintains the tightness of the coolant circuit,
• minimizes stress resulting from engine vibrations and operation.

Thanks to the preservation of the original hose geometry, installation in the W205 engine bay is predictable and does not require modification of other components.

Compatibility with Mercedes W205 diesel engine

The described hose has been designed specifically for Diesel OM626 units used in the Mercedes C-Class W205. This means that:

• mounting points and hose routing are matched to the factory system,
• connection diameters correspond to the ports on the engine and accessories,
• the hose works with the factory cooling system without the need for adaptation.

This type of fitment is particularly important in modern diesel units, where space in the engine bay is limited and every component has a strictly defined position.

Characteristics of the used water hose

The item comes from the Lines, hoses and pipes group, which means it has been designed to operate in a coolant environment and under variable temperatures. As a used part, the hose is a good choice for:

• maintenance repairs after a coolant leak,
• replacing a damaged or deformed section of the installation,
• restoring system efficiency after a thermal failure.

Choosing an original component from disassembly allows for maintaining compliance with the manufacturer's factory solutions, which is important for the durability and proper operation of the cooling system.

Benefits of using an original Mercedes hose

Using a water hose dedicated to the Mercedes W205 with a diesel engine brings a number of practical benefits:

• Factory fitment – compatibility with the cooling system and OM626 engine accessories.
• Stable system operation – proper coolant flow and predictable behavior under various load conditions.
• Reduced risk of leaks – matched diameters and connection shapes reduce the risk of leaks when installed correctly.
• Economical repair – a used component allows for lower service costs while maintaining compliance with the manufacturer's solutions.

Related Mercedes cooling system components

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, flexible radiator hoses, or rigid fluid pipes, check the available parts in the Mercedes lines, hoses and pipes category.

When planning broader service work, it is also worth expanding your knowledge about the selection of used drivetrain components and the principles of their assessment – you will find practical tips in the article Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems, which helps in making informed purchasing decisions for parts from the secondary market.