Audi A5 8T A4 B8 Water Coolant Pipe Hose Turbocharger 2.0 TFSI 06L121497D

Audi A5 8T A4 B8 Water Coolant Pipe Hose Turbocharger 2.0 TFSI is an original component from the Cooling system pipes and hoses group, designed specifically to manage the coolant circulation around the turbocharger in 2.0 TFSI units. Precise geometry and factory fitment ensure stable coolant flow, which translates into the safe operation of the turbocharger and the entire powertrain.

Specifications and technical data

• SKU: 06L121497D
• Mark: Audi
• Condition: Used
• OEM Part Number: 06L121497D
• Substitutable numbers: 06L 121 497 D, 06L121497D, 06L 121 497 AA, 06L121497AA
• Part type: Pipe
• Category: Coolant Hoses

Function of the turbocharger coolant pipe

The water coolant pipe is responsible for the controlled flow of coolant through the turbocharger housing, stabilizing its temperature under load. In 2.0 TFSI engines, this is crucial for:

• maintaining the proper temperature of the turbine bearings during dynamic driving,
• reducing the risk of overheating rotor components after sudden throttle release,
• preserving consistent boost parameters over the long term of operation. Thanks to the use of the original pipe geometry, the correct coolant routing path is maintained, with appropriate bends and offsets relative to adjacent components in the engine bay.

Why it is worth using an original Audi pipe

For components supporting the turbocharger, it is particularly important to maintain the factory flow characteristics. The original Audi pipe ensures:

• secure fitment to the cooling system connectors and the turbine housing,
• appropriate rigidity and temperature resistance in the hot zone near the turbocharger,
• compatibility with factory routing of harnesses, shields, and other pipes in the engine bay. Such a solution minimizes the risk of stress, chafing, or leaks that may occur when using replacements with different geometry or build quality.

Scope of application and system fitment

The pipe was developed for Audi A4 B8 and Audi A5 8T models with the 2.0 TFSI engine, where it works with the factory cooling system and turbocharger. As a result, installation is straightforward, maintaining:

• the proper distance from the exhaust manifold and heat shields,
• correct positioning relative to the engine block and auxiliary components,
• factory mounting points and pipe routing. Such fitment promotes stable system operation over the long term, without the need to modify other components.

Characteristics of the used component

The offered pipe comes from dismantling, which allows for maintaining the original manufacturer specification while optimizing repair costs. A used cooling system component is a good solution in situations where:

• the existing pipe has suffered mechanical damage or corrosion,
• there are leaks in the cooling circuit in the turbocharger area,
• it is necessary to replace several components during turbine or engine service. Choosing an original pipe from the secondary market allows for maintaining consistency with the remaining cooling system elements, without compromises in terms of fitment and routing.

Comprehensive Audi cooling system service

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 pipes, return hoses, or sections connecting to the radiator, check the available parts in the Audi cooling system pipes and hoses category. When working with the thermal system, it is also worth paying attention to the condition of components responsible for cabin comfort. In case of problems with air cooling inside the vehicle, a guide on selecting used air conditioning components will be helpful – details can be found in the article No cooling in the car: original used air conditioning compressor as a proven alternative to expensive new parts.