BMW 3 Series E90 E91 LCI Radiator Hose Heat Exchanger Pipe Oil Cooler 7800106

BMW E90 E91 LCI Coolant Hose Pipe Water Hose is a cooling system component from the Hoses, Pipes and Tubes category, designed for use in facelifted (LCI) BMW 3 Series models. The offered component comes from the original BMW line, ensuring proper geometric fit and stable cooperation with other system elements. The used nature of the part allows for an economical yet technically correct repair or replacement of the water hose in your car.

Specifications and technical data

• SKU: 7800106
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7800106
• Substitutable numbers: 17127800106, 7800106, AS
• Category: Hoses, Lines & Pipes

Application and Function in the Cooling System

The water hose in the BMW E90/E91 LCI series is responsible for the controlled flow of coolant between individual system components. A correctly selected hose:

• ensures stable operating pressure in the cooling system,
• reduces the risk of coolant leaks,
• supports the maintenance of optimal engine operating temperature.

Thanks to the preservation of the hose's factory geometry, installation is predictable, without the need for modifications to adjacent components.

Benefits of Using an Original BMW Hose

An original BMW water hose, even in used condition, retains the key structural features intended by the manufacturer. In practice, this means:

• secure fit to the spigots and mounts in the engine bay,
• appropriate material flexibility within the operating temperature range,
• retention of the correct shape under thermal and pressure load.

An element constructed in this way allows for maintaining the cohesion of the cooling system and reducing the risk of failures resulting from the use of random aftermarket parts with uncertain parameters.

Product Condition and Installation Aspects

The offered hose is a used part, which translates to a favorable cost-to-functionality ratio while maintaining the original BMW specification. Before installation, standard visual inspection and checking of the working surfaces are recommended to ensure a leak-free connection with the existing system.

When replacing the water hose, it is worth paying attention to:

• correct routing of the hose relative to the factory guides,
• the condition of the clamps and connectors,
• proper bleeding of the cooling system after installation.

This approach helps maintain stable cooling system operation and minimize the risk of repeated service interventions.

Category: BMW Hoses, Pipes and Tubes

If you are looking for other elements from the Hoses, Pipes and Tubes category dedicated to this brand, check out the BMW hoses, pipes and tubes available in our assortment to select a complete solution for your cooling system or other components.

Why Choose Used OEM Parts

Choosing a used, original water hose is a sensible solution for drivers who want to maintain the factory operating characteristics of the system at controlled service costs. OEM components are designed for long-term operation, and their geometry and material are precisely matched to the specific vehicle generation.

For a comparison of manufacturers' approaches to the quality of original parts, it is worth reading the analysis on our blog – the article Audi and Pure Emotion – How Used Parts Help Maintain Brand DNA shows how appropriately selected OEM parts influence the preservation of a car's factory properties.

Summary

BMW E90 E91 LCI Coolant Hose Pipe Water Hose is a practical solution for users who want to restore proper coolant circulation in their car while maintaining the original manufacturer's specification. A used, original part from the Hoses, Pipes and Tubes category allows for a technically correct repair of the cooling system, without compromising on fit and functionality.