Mercedes-Benz A-Class W169 Heater Radiator Water Cooling Hose A1698302996

Mercedes-Benz A-Class W169 Heater Radiator Water Cooling Hose is an original component from the Cooling system pipes and hoses group, designed for operation in the coolant circuit of Mercedes A-Class W169 generation models. This used OEM component ensures proper coolant flow between the heater core and other system elements, supporting stable engine operating temperatures and cabin heating comfort.

Specifications and technical data

• SKU: rhd-A1698302996
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1698302996
• Substitutable numbers: A1698302996, A 169 830 29 96, BG
• Category: Coolant Hoses

Purpose and function in the cooling system

This heater water hose is responsible for transporting coolant in the heat exchange area between the engine and the interior heater core. A correctly selected hose:

• ensures a leak-proof connection in the coolant circuit,
• maintains stable medium flow towards the heater core,
• reduces the risk of engine overheating,
• supports efficient cabin heating under various thermal loads.

Thanks to its design tailored to the Mercedes A-Class W169, the hose works with factory connectors and mounts, which facilitates installation and maintenance.

Benefits of using an original hose

Using an original cooling system hose in a Mercedes A-Class W169 translates into a number of practical advantages:

• Factory geometry – proper profiling minimizes stress on connectors and joints.
• Cooling system compatibility – the hose is designed to work with the stock heater core and other system components.
• Stable operation under high temperature and coolant operating pressure conditions.
• Ability to use existing clamps and brackets without the need for modifications.

This solution is particularly beneficial when servicing vehicles used intensively in urban traffic, where the cooling system operates under variable thermal conditions.

Condition and installation aspects

The item is offered as a used part, which allows for an economical repair of the cooling system while maintaining the manufacturer's original specifications. Before installation, it is recommended to perform a standard check of tightness, rubber flexibility, and the condition of the connection ends, as well as to replace hose clamps if they show signs of wear.

During installation, it is worth paying attention to:

• correct positioning of the hose relative to engine compartment elements,
• avoiding contact with sharp edges and moving parts,
• proper bleeding of the cooling system after completing the work.

Technical support and additional information

To precisely match the hose to a specific engine version, it is worth using the manufacturer's markings and vehicle data, such as model, production year, and engine type. In case of doubt, comparing the shape and diameter of the connectors with the removed element is helpful.

If you are planning a comprehensive repair or upgrade of the cooling system area in your Mercedes and need other elements from the same group, such as return pipes, main hoses, or sections connecting to the radiator, check the available parts in the Mercedes cooling system pipes and hoses category.

More practical tips regarding the operation and maintenance of the cooling system in high temperatures can be found in the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which will help you better plan preventive maintenance and repairs for your car.