Mercedes-Benz M-Class ML W163 Expansion Tank Recirculating Pump Coolant Hose

Mercedes-Benz M-Class ML W163 Expansion Tank Recirculating Pump Coolant Hose is a cooling and air conditioning system component designed for this model series, allowing for efficient fluid circulation in the auxiliary circuit. Thanks to its factory geometry and precise fit for the specific platform, it ensures proper routing in the engine bay and stable operation with the recirculating pump. This is a practical solution for users who want to restore the correct operation of the system without the costly replacement of entire assemblies.

Specifications and technical data

• SKU: A1635013682
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1635013682
• Substitutable numbers: A1635013682, A 163 501 36 82, BG
• Category: A/C Hoses & Fittings

Purpose and function in the cooling system

The presented hose is part of the Air conditioning lines, hoses, and connectors group, responsible for transporting the working medium in the auxiliary circuit connected to the water pump. Its task is to maintain stable flow, which translates into even heat dissipation from critical engine zones and cooperation with the vehicle's air conditioning system.

A properly selected hose minimizes the risk of leaks, pressure drops, and local overheating, which can lead to accelerated wear of other components. The correct diameter, shape, and length of the hose are crucial for maintaining system operating parameters in accordance with the manufacturer's specifications.

Benefits of using an original Mercedes component

The recirculating pump coolant hose from the Mercedes range ensures compliance with the vehicle's factory specifications, which facilitates installation and limits the need for system modifications. Using an original component allows you to maintain:

• correct hose routing in the engine bay,
• compatibility with factory clamps and brackets,
• stable operating conditions for the cooling and air conditioning system.

As a result, the risk of failures resulting from poorly fitted aftermarket parts is reduced, and the entire system operates under conditions close to factory standards.

Condition, origin, and practical application

The offered item is a dismantled part, which allows for economical vehicle repair while retaining a component with parameters consistent with the original. This type of solution is particularly beneficial for older generation models, where the availability of new parts may be limited or economically unjustified.

Replacing the recirculating pump coolant hose is recommended in situations where there are signs of fluid evaporation, cracks in the outer layer, hose flattening, or problems with maintaining system pressure. Using the correct hose allows for restoring proper medium circulation and reducing the risk of engine overheating.

Technical support and component selection

When selecting a hose for a specific Mercedes ML W163, it is worth paying attention to compatibility with the cooling and air conditioning system used in the given engine version. Manufacturer markings, catalog numbers, and information on interchangeable numbers are helpful in verifying compatibility with the vehicle.

If you are planning a comprehensive repair or upgrade of the cooling and air conditioning area in your Mercedes and need other elements from the same group, such as flexible hoses, rigid pipe sections, or service connectors, check the available parts in the Mercedes air conditioning lines, hoses, and connectors category.

Air conditioning system safety – practical knowledge

When working on air conditioning and water circuit lines and hoses, it is worth knowing the typical symptoms of damage to cooperating components, such as the compressor or control valves. To better understand the relationship between line tightness and compressor durability, check out the guide Air conditioning compressor – failure symptoms, causes, and safe replacement, which helps assess the condition of the entire system before and after replacing individual components.