Audi R8 42 Power Steering Hydraulic Pump Unit Module Control 420145157A

Audi R8 42 Power Steering Hydraulic Pump Unit Module Control is an original component from the Power steering pumps group, designed for the steering system in Audi vehicles. Thanks to its factory design and integrated control, it ensures precise power steering operation and stable hydraulic system performance. This solution allows for restoring the correct steering force characteristics and maintaining predictable vehicle handling.

Specifications and technical data

• SKU: 420145157A
• Mark: Audi
• Condition: Used
• OEM Part Number: 420145157A
• Substitutable numbers: 420145157A, 420 145 157 A
• Part type: Power Steering Pump
• Category: Power Steering Pumps

Purpose and function in the steering system

The presented power steering pump with a control module is responsible for generating pressure in the hydraulic system and controlling the power steering operation according to signals from the vehicle's electronics. In practice, this means:

• stable, predictable power steering across the full speed range,
• correct system response to steering wheel movements,
• proper adjustment of steering force to driving conditions. By maintaining the factory operating characteristics, the steering system remains consistent with the manufacturer's specifications, which is important for both comfort and driving safety.

Construction: hydraulic pump with control module

Combining the hydraulic pump with the control module into a single unit allows for precise management of system pressure and efficiency. This configuration:

• facilitates diagnostics – the controller communicates with vehicle systems and can signal malfunctions,
• ensures consistency of operating parameters with factory software,
• reduces the risk of mismatching hydraulic and electronic components. Original manufacturing promotes the maintenance of proper mounting rigidity, correct hose routing, and proper cooling of the unit during operation.

Benefits of using an original Audi power steering pump

Using an original power steering pump unit with a control module in an Audi R8 allows for maintaining the integrity of the entire steering system. Key advantages include:

• factory fitment for the vehicle's hydraulic and electrical installation,
• preservation of the steering force characteristics intended by the manufacturer,
• reduction of the risk of controller errors resulting from the use of unsuitable replacements,
• possibility of proper computer diagnostics at a service center. The component from this group is particularly important in high-performance vehicles, where driving stability and steering precision have a direct impact on safety.

Condition and use in vehicle service

The product is offered as a used original component, which allows for an economical repair of the power steering system while maintaining the factory design. This type of solution is often chosen in professional workshops specializing in the Audi brand, where compliance with technical documentation and the possibility of subsequent service maintenance are prioritized. When working on hydraulic and fuel systems, it is worth paying attention to selecting components by factory numbers and following the correct bleeding and testing procedures after installation. Additional information on diagnostics, selection by part numbers, and the operation of systems with pumps can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses a practical approach to working with these types of components.

Expanding the Audi power steering system

If you are planning a comprehensive repair or upgrade of the steering system area in your Audi and need other elements from the same group, such as additional pumps, pressure hoses, or fluid reservoirs, check the available parts in the Audi power steering pumps category.