Audi S4 B8 Engine Coolant Pipe Hose Line Left N/S Outer 3.0 TFSI 8K0145922A

The Audi S4 B8 Coolant Hose Pipe Water Pipe Left 3.0 TFSI is an original cooling system component designed for use with the 3.0 TFSI gasoline engine. Thanks to its factory fit for the specific model, it ensures stable coolant flow and proper cooperation with other system components.

Specifications and technical data

• SKU: 8K0145922A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0145922A
• Substitutable numbers: 8K0145922A, 8K0 145 922 A
• Location on the vehicle: Left
• Fuel type: Petrol
• Part type: Line
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The presented hose belongs to the group of Cooling System Hoses and Pipes and is responsible for directing coolant flow on the left side of the engine bay. Its task is to maintain the correct medium circulation between system components, which translates to a stable operating temperature for the 3.0 TFSI gasoline engine.

Its placement on the left side of the vehicle allows for precise routing of the pipe within the engine compartment, maintaining appropriate distances from hot and moving parts. The correct shape and diameter of the hose minimize the risk of coolant pressure drops and undesirable flow turbulence.

Benefits of Using an Original Audi Hose

Using an original water hose in an Audi S4 B8 with a 3.0 TFSI gasoline engine offers a range of practical benefits:

• factory fit to the engine bay geometry and mounting points,
• compliance with the manufacturer's specified cooling system operating parameters,
• stable coolant flow under high thermal load conditions,
• reduced risk of leaks resulting from ill-fitting aftermarket parts.

As a result, the hose supports the safe operation of the powertrain across a wide temperature range, which is important for both daily driving and the dynamic driving characteristic of the S version.

Installation and Operational Characteristics

The hose has been designed for use in a gasoline engine cooling system, taking into account typical thermal and pressure loads. Its placement on the left side of the vehicle makes it easier for mechanics to identify the correct section of the system during diagnostics or component replacement.

This part is from a dismantled vehicle, which allows you to combine the advantages of original construction with an attractive price compared to new parts. This solution is particularly beneficial for repairs where maintaining the factory geometry of the cooling system is crucial without the need to invest in a completely new component.

Cooling System and Summer Conditions – Practical Knowledge

High ambient temperatures significantly load the cooling system, so a functional water hose directly impacts the engine's protection against overheating. It is worth familiarizing yourself with practical tips on the operation and selection of cooling components during the summer season – you will find them in the guide Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings, which discusses, among other things, the impact of temperature on the entire system's operation.

Expanding the Cooling System in Audi – Related Components

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other components from the same group, such as additional water hoses, flexible hoses, or rigid pipes for coolant flow, check the available parts in the Audi Cooling System Hoses and Pipes category.