BMW F01 F10 F11 F13 Return Hose Coolant Cooling Pipe Auxiliary Heater 9169918

The BMW F01 F10 F11 F13 Auxiliary Heater Coolant Return Hose is an original part from the Cooling System Hoses and Pipes group, designed for operation in the return circuit of the auxiliary heater system. Designed by BMW, it ensures proper coolant flow and stable cooperation with other components of the vehicle's thermal system.

Specifications and technical data

• SKU: 9169918
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9169918
• Substitutable numbers: 9169918, 64509169918, KD
• Category: Coolant Hoses

Purpose and Function in the BMW Cooling System

The presented return hose is responsible for the controlled return of coolant from the auxiliary heater to the main circuit, which is important for maintaining the correct operating temperature of the engine and thermal comfort inside the cabin. Thanks to its factory fit for BMW F-series models, the hose's geometry is adapted to original mountings and routing within the engine bay, reducing the risk of stress, kinks, and leaks.

Construction and Fit within the Cooling System Hoses and Pipes Group

This hose belongs to the group of components responsible for transporting coolant between key system sub-assemblies. The hose's construction is prepared for operation under conditions of elevated temperature and variable pressure, typical for the auxiliary heater circuit. The appropriately shaped cross-section and factory-fitted ends facilitate installation in original sockets, contributing to system sealing and proper fluid circulation.

Benefits of Using an Original BMW Hose

Using an original hose to replace a worn or leaking component allows for the restoration of proper operation of the auxiliary cooling and heating system without the need for installation modifications. The main benefits include:

• Factory Fit for BMW F-series cooling systems, with no modifications required.
• Compatibility with other pipes and hoses, simplifying servicing and diagnostics.
• Reduced risk of coolant leaks due to proper hose routing.
• Stable operation of the auxiliary heater, contributing to cabin thermal comfort.

Item Condition and Service Application

The offered hose is from the original BMW line and is intended for service applications in vehicles equipped with an auxiliary heater. It is a practical solution for replacing a damaged, hardened, or leaking hose when you want to maintain compliance with the manufacturer's original specifications and ensure predictable cooling system performance over the long term.

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other parts from the same group, such as pipes, hoses, or coolant return sections, check the available parts in the BMW Cooling System Hoses and Pipes category.

Technical Support and Part Selection

To better understand the impact of functional pipes and hoses on the thermal safety of the engine, it is worth reading the guide on diagnosing and repairing cooling systems, available in the article Engine Cooling System – Overheating, Repair, and Used Radiators. You will find practical tips on overheating symptoms and the importance of a sealed circulation system.

If you want to further ensure that you are selecting the correct used part for your specific BMW model, use the practical tips on verifying markings and compatibility, described in the guide No More Wrong Purchases! How to Professionally Select Used Car Parts, Saving Time and Nerves. This will help you more easily verify the compatibility of the offered hose with your car's specific configuration.