Audi TT 8N 1.9 TDI AVF Power Steering Oil Fluid Reservoir Bottle Unit 1J0422371C

Audi TT 8N 1.9 TDI AVF Power Steering Oil Fluid Reservoir Bottle Unit is a hydraulic system component designed for operation in diesel-powered vehicles. Thanks to its factory-spec design, it ensures stable power steering pump supply and proper fluid circulation throughout the entire steering system, which translates into precise vehicle handling. This used component allows for a cost-effective yet technically sound repair of the power steering system in the Audi TT 8N 1.9 TDI AVF.

Specifications and technical data

• SKU: 1J0422371C
• Mark: Audi
• Condition: Used
• OEM Part Number: 1J0422371C
• Substitutable numbers: 1J0422371C, 1J0 422 371 C
• Fuel type: Diesel
• Category: Power Steering Pump Parts

Purpose and function in the power steering system

The presented reservoir is part of the Power steering pump parts group and is responsible for storing and leveling the operating fluid in the system. Its tasks include:

• ensuring an adequate amount of fluid for the power steering pump under various engine operating conditions,
• stabilizing pressure and limiting aeration of the medium,
• maintaining proper fluid circulation in the steering system.

Being dedicated to a diesel engine unit ensures that the reservoir is adapted to the operating characteristics of the power steering system in this specific powertrain variant.

Construction and fitment for Audi TT 8N 1.9 TDI AVF

Audi TT 8N 1.9 TDI AVF Power Steering Oil Fluid Reservoir Bottle Unit has been designed for installation in the engine bay of this model, taking into account factory hose routing and mounting points. The properly shaped housing facilitates:

• correct seating in the original brackets,
• collision-free routing of supply and return lines,
• maintaining the proper fluid level within the operating range specified by the manufacturer.

As a result, the component integrates well with the existing hydraulic system, which reduces the risk of leaks and bleeding issues.

Benefits of using a pre-owned reservoir

Choosing a used power steering fluid reservoir is a cost-effective solution that allows you to restore system efficiency without the need to invest in a new component. This type of part is particularly useful when:

• the original reservoir has cracked or deformed,
• there are fluid leaks around the housing,
• a replacement is necessary as part of a broader power steering system repair.

A used component allows you to maintain structural consistency with the factory system, which is essential for the durability and predictable operation of the power steering.

Application in diesel-powered vehicles

Power steering systems in diesel-powered cars often operate under demanding load conditions, which is why a properly selected fluid reservoir is important for the stability of the entire system. The appropriate capacity and geometry of the reservoir help maintain:

• the correct fluid level at varying engine speeds,
• proper lubrication conditions for the power steering pump,
• consistent steering feel characteristics.

This translates into predictable vehicle behavior during maneuvering and high-speed driving.

Expanding the power steering system in Audi

If you are planning a comprehensive repair or upgrade of the steering area in your Audi and need other elements from the same group, such as supply lines, return lines, or additional mounting hardware, check out the available parts in the Audi power steering pump parts category.

Technical support and knowledge about used parts

When selecting used power steering system components, it is worth using reliable sources of information regarding the quality and safety of such solutions. To better understand the benefits of reusing salvaged components in modernization and tuning projects, read the article Emotions and design – visual and mechanical tuning of a Seat using salvaged components. Additionally, if you are interested in the broader context of an ecological approach to vehicle repairs, it is worth reading the material Eco-driving: discover the benefits of used car parts, which shows how conscious part selection impacts the environment and operating costs.