Mercedes-Benz A-Class W169 Heater Radiator Water Cooling Hose A1698302696

The Mercedes-Benz A-Class W169 Radiator Coolant Hose is an original component of the water cooling system, designed for precise delivery and return of coolant to the heater core. With its factory-matched shape and diameter, it ensures stable fluid flow and proper integration with other cooling system components in A‑Class W169 models.

Specifications and technical data

• SKU: rhd-A1698302696
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1698302696
• Substitutable numbers: A1698302696, A 169 830 26 96, BG
• Category: Coolant Hoses

Purpose and Function in the Cooling System

This water hose operates in the circuit between the engine and the heater core, responsible for transporting the coolant that heats the vehicle's interior while simultaneously stabilizing the engine's temperature. A correctly selected hose minimizes the risk of pressure drops, leaks, and overheating, contributing to safe and predictable cooling system operation.

The component is structurally adapted to the engine bay architecture of the Mercedes-Benz A-Class W169 generation, facilitating installation and ensuring proper routing of the hose relative to other parts.

Benefits of Using an Original Mercedes Hose

Using an original water hose in the radiator cooling system ensures:

• factory fit for spigots and mounting points in the A‑Class W169,
• appropriate flexibility and wall stiffness, reducing the risk of kinking under temperature stress,
• stable sealing performance during long-term use,
• compatibility with other Mercedes cooling system components.

As a result, the hose serves as a functional service solution for repairs related to the heater core, coolant replacement, or leak detection within the circuit.

Characteristics of a Used Component

The offered hose is a used part, allowing for economical repairs while maintaining the original manufacturer's specifications. This type of component is particularly useful for vehicles with intensive usage, where a reasonable service cost is important while preserving factory geometry and compatibility with the cooling system.

The radiator water hose can be used as a replacement for a worn, brittle, or leaking part, restoring proper fluid circulation and reducing the risk of engine overheating emergencies.

Technical Support and Parts Selection

When selecting a hose for a specific A-Class W169 engine variant, it is advisable to consider the cooling system configuration and the arrangement of the heater core spigots. If in doubt, comparing the shape and length of the hose with the part removed from the vehicle can help quickly confirm compatibility.

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

To better understand the impact of temperature on cooling system operation and to make informed choices about used components, it is recommended to read the guide “Summer Heat vs. Cooling System: Used Radiators and Fans for Savings”, which discusses practical aspects of operating and servicing car cooling systems.