Audi A6 C7 Radiator Upper Hose Line Pipe Left N/S 2.8 Petrol 4G0122101

Audi A6 C7 Radiator Upper Hose Line Pipe Left N/S 2.8 Petrol is an original cooling system component designed for precise coolant flow between the radiator and the engine. Thanks to its factory geometry and perfect fit for the specific engine version, it ensures stable thermal conditions and safe operation of the entire cooling system in the Audi A6 C7.

Specifications and technical data

• SKU: 4G0122101
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0122101
• Substitutable numbers: 4G0122101, 4G0 122 101
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented hose belongs to the Cooling system hoses and pipes group and has been designed specifically for use on the left side of the engine bay in the Audi A6 C7 generation with a 2.8 petrol engine. It is responsible for the directional flow of coolant in the upper part of the circuit, which is crucial for maintaining the correct engine operating temperature and even heat distribution.

The factory-molded shape of the hose minimizes the risk of kinks, overly tight bends, or incorrect positioning relative to other components, which translates into uninterrupted coolant flow even under high thermal loads.

Construction, fitment, and installation

The hose is constructed as a component dedicated to a specific vehicle platform, taking into account the layout of the radiator, engine, and other components in the engine bay. The appropriate length, diameter, and angle of the outlets allow for installation at existing mounting points without the need for modifications or fitting universal replacements.

As a result, the mechanic or user receives a component that can be integrated into the system in a way similar to the factory setup – maintaining proper routing relative to the fan, covers, clamps, and other hoses. This solution reduces the risk of rubbing against other parts, local overheating, or leaks resulting from improper positioning.

Benefits of using an original hose

Using a hose dedicated to the Audi A6 C7 with a 2.8 petrol engine allows for maintaining the cooling system operating parameters at the level intended by the vehicle manufacturer. In practice, this means:

• stable engine operating temperature across a wide range of loads,
• reduced risk of overheating in both city and highway driving conditions,
• proper cooperation with the radiator, thermostat, and coolant pump,
• easier diagnostics of potential cooling system faults.

An element from this group is particularly important in vehicles operated in diverse climatic conditions, where the cooling system must react to both low and very high ambient temperatures.

Condition of the item and service application

The offered hose is a used part, making it an attractive service solution for users looking for an economical cooling system repair while maintaining the original design specifications. This type of component is suitable both for standard replacement of worn hoses and for repairs after a failure, where it is necessary to restore full tightness of the coolant circuit.

Before installation, standard service procedures are recommended: checking other hoses, clamps, and the condition of the radiator and connectors, followed by bleeding the system after filling it with fresh coolant in accordance with the vehicle manufacturer's recommendations.

Cooling system service expansion and additional materials

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as additional hoses, return lines, or sections connecting to the radiator, check the available parts in the Audi cooling system hoses and pipes category.

To better plan service work during the high-temperature season and understand how the choice of components affects the durability of the entire system, it is worth checking our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. You will find practical tips there regarding the operation and inspection of components responsible for heat dissipation from the engine.