Mercedes W164 X164 Radiator Engine Coolant Hose Tube Line Pipe A1645000075

Mercedes W164 X164 Radiator Engine Coolant Hose Tube Line Pipe is an original cooling system component designed for the precise routing of coolant between the engine and the radiator. Thanks to its factory geometry and precise fit for the specific platform, it ensures stable system operation and helps maintain the proper temperature of the power unit. This is a practical solution for users looking for a proven OEM cooling hose instead of random replacements.

Specifications and technical data

• SKU: A1645000075
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1645000075
• Substitutable numbers: A1645000075, A 164 500 00 75
• Part type: Hose
• Category: Coolant Hoses

Purpose and function in the cooling system

The hose belongs to the Cooling system hoses and pipes group and is responsible for the safe transport of coolant between the radiator and the engine. A properly selected shape and connection diameter limit the risk of leaks, air pockets, and local overheating, which directly impacts the durability of the power unit and the comfort of vehicle operation. Using a hose matched to a specific body series allows for proper routing within the engine bay, away from high-temperature components and moving parts. This reduces the risk of abrasion, cracks, and uncontrolled fluid leaks.

Advantages of using an original Mercedes hose

Choosing a cooling hose dedicated to the W164/X164 series offers a number of technical benefits:

• factory fit for mounts and connectors in the cooling system,
• maintenance of proper coolant flow across the entire engine operating range,
• reduction of material stress risks resulting from incorrect hose positioning,
• easier installation and removal during cooling system maintenance. For users who value consistency with the vehicle's factory design, this is a more predictable solution than universal hoses cut "to size," which often require additional clamps or modifications.

Characteristics of the used component

The offered hose comes from disassembly, which allows for combining reasonable cost with the preservation of the manufacturer's original specifications. A used cooling system component is a good solution wherever compliance with the factory design and the ability to perform a quick replacement without experimenting with replacements is important. Before installation, it is recommended to perform a standard inspection of the outer surface condition, material flexibility, and clamp seats to ensure the tightness of the entire system.

Installation and operational tips

When replacing the hose, it is worth:

• checking the condition of the clamps and using new ones if necessary,
• cleaning the radiator and engine connectors of any deposits,
• bleeding the cooling system after installation according to the procedure for the given model,
• checking the tightness of the connections after the first few kilometers. This approach allows you to fully utilize the potential of the original hose and maintain stable cooling system operating parameters in daily use. If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional lines, return hoses, or sections connecting to the heater core, check the available parts in the Mercedes cooling system hoses and pipes category. For drivers considering a wider range of work on systems responsible for temperature and driving comfort, a guide explaining when it pays to reach for used OEM components instead of new replacements may be helpful – you can find more practical tips in the article Lack of cooling in the car: original used air conditioning compressor as a proven alternative to expensive new parts.