Volkswagen Passat B7 CC Water Coolant Pipe Hose 2.0 TDI CFGC 3AA122051A

Volkswagen Passat B7 CC Water Coolant Pipe Hose 2.0 TDI CFGC is an original cooling system component designed for the precise routing of coolant in a diesel engine. Thanks to its factory geometry and perfect fit for the 2.0 TDI CFGC unit, it ensures stable thermal conditions and proper fluid circulation throughout the entire circuit. This is a practical solution for users who want to maintain consistency with Volkswagen's factory design and avoid issues with leaks.

Specifications and technical data

• SKU: 3AA122051A
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3AA122051A
• Substitutable numbers: 3AA122051A, 3AA 122 051 A
• Part type: Hose
• Category: Coolant Hoses

Purpose and function in the cooling system

The water pipe used in the Passat B7 CC with the 2.0 TDI CFGC engine is responsible for the controlled routing of coolant between key system components. A properly selected pipe minimizes the risk of pressure drops, localized overheating, and unwanted vibrations that may occur when using aftermarket replacements with different stiffness or geometry. The component belongs to the Cooling system pipes and hoses group, which means it works directly with the radiator, connectors, and other liquid circuit components. Proper fit of the shape and connection diameter is crucial for maintaining tightness and the correct operation of the coolant pump.

Benefits of using an original Volkswagen pipe

Using a pipe from the Volkswagen range allows you to maintain cooling system operating parameters in accordance with the vehicle manufacturer's specifications. The original part ensures:

• appropriate wall stiffness, reducing the risk of the pipe collapsing at higher operating temperatures,
• precise fit to mounts and connectors in the engine bay,
• consistency with the factory routing, which facilitates service and diagnostics. For diesel units such as the 2.0 TDI CFGC, maintaining a stable operating temperature is particularly important for the durability of the cylinder head, seals, and accessories. A properly selected water pipe helps reduce the risk of overheating and accelerated component wear.

Component condition and installation aspects

The offered pipe comes from the used parts group, which allows for an economical repair while maintaining the manufacturer's original specifications. Before installation, a standard visual inspection is recommended, checking the material's flexibility and the connection surfaces for any mechanical damage or signs of excessive wear. Replacing the water pipe in a Passat B7 CC with a 2.0 TDI CFGC engine is a typical service operation in the cooling system area. Proper installation includes correct positioning of the pipe in factory guides, the use of appropriate clamps, and bleeding the system after refilling with fresh coolant.

Technical support and additional information

To better understand the impact of pipes and hoses on engine durability and the symptoms of cooling system malfunctions, it is worth reading the guide on diagnostics and operation of the coolant circuit: Engine cooling system – overheating, repair, and used radiators. The article helps link the condition of the pipes to the risk of overheating and suggests when replacing components is particularly recommended. If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other elements from the same group, such as flexible hoses, rigid pipes, or liquid connectors, check the available parts in the Volkswagen cooling system pipes and hoses category.

Summary

Volkswagen Passat B7 CC Water Coolant Pipe Hose 2.0 TDI CFGC is a practical choice for users who want to restore proper coolant circulation and maintain the factory operating parameters of the engine. Its original Volkswagen origin, fitment for the specific engine, and classification in the Cooling system pipes and hoses category make this component well-suited for both routine maintenance and repairs following a cooling system failure.