Audi A6 C7 3.0 TFSI Water Coolant Pipe Hose Line 4G0145920C

Audi A6 C7 3.0 TFSI Coolant Hose Water is an original part from the cooling system hoses and pipes category, designed for operation in the demanding thermal environment of the 3.0 TFSI engine. This used component ensures factory coolant flow geometry, which promotes stable engine temperature and proper functioning of the entire cooling system.

Specifications and technical data

• SKU: 4G0145920C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0145920C
• Substitutable numbers: 4G0145920C, 4G0 145 920 C
• Location on the vehicle: Left
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The water coolant hose in the Audi A6 C7 3.0 TFSI is responsible for directing the coolant between system components such as the engine block, heat exchangers, and auxiliary circuits. A correctly selected hose:

• maintains the tightness of the cooling circuit under variable thermal loads,
• ensures adequate flow cross-section, limiting pressure drops,
• stabilizes engine operation within its working temperature range.

By maintaining its original shape and length, the hose works with factory mounting brackets and guides, which facilitates installation and minimizes the risk of incorrect positioning in the engine bay.

Vehicle Placement and Fitment

This part is designed for installation on the left side of the vehicle, in accordance with the factory cooling system configuration in the Audi A6 C7 generation with the 3.0 TFSI engine. This placement means:

• precise fitment with adjacent components (engine accessories, housings, mounts),
• maintenance of safe distances from high-temperature components,
• reduction of stresses resulting from engine operation and vibrations.

Proper left-side fitment translates to stable hose routing, reducing the risk of chafing, micro-cracks, and leaks in the long run.

Characteristics of an Original Audi Hose

This hose comes from the line of original Audi components, meaning it complies with the vehicle manufacturer's factory quality standards. In practice, this translates to:

• use of materials resistant to high temperatures and coolant action,
• controlled flexibility, allowing for engine movement compensation without excessive stress on the connectors,
• compatibility with the cooling system design in the 3.0 TFSI version, without the need for modifications.

A used hose is a sensible choice when the priority is to maintain the original system specification while optimizing service costs.

Benefits of Using a Used Coolant Hose

Using a used coolant hose in the Audi A6 C7 3.0 TFSI allows for maintaining the factory cooling system configuration while reducing expenses compared to a new part. The main advantages of this solution include:

• preservation of original flow geometry and mounting points,
• no need for adaptation or modifications to the installation,
• possibility of quick replacement in workshop conditions.

For users who drive their vehicles intensively or are preparing the car for resale, this is a practical way to restore proper cooling system operation without altering its design.

Related Audi Cooling System Hoses and Pipes

If you are also planning to replace other components from the Audi Cooling System Hoses and Pipes category during your service, check out the Audi cooling system hoses and pipes available in our assortment to comprehensively renew your vehicle's cooling circuit.

Technical Support and Cooling System Operation

When selecting and installing hoses in the cooling system, it is advisable to pay attention to signs of engine overheating, the condition of the coolant, and the tightness of connections. High summer temperatures particularly stress the entire system, so a good complement to hose replacement is checking the radiator and fans. More practical tips can be found in the guide “Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings”, which discusses the impact of ambient temperature on cooling system efficiency and the cost-effectiveness of using used components.