Audi S5 8T Petrol Power Steering Pump 8K0145156Q

Audi S5 8T Petrol Power Steering Pump is an original hydraulic system component designed for Audi models with petrol engines, ensuring stable and predictable steering system performance. Thanks to its factory OEM design, the pump works seamlessly with other system components, maintaining proper operating pressure and steering comfort. This is a solution for users who expect consistent handling characteristics and the preservation of the vehicle's factory parameters.

Specifications and technical data

• SKU: 8K0145156Q-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0145156Q
• Substitutable numbers: 8K0145156Q, 8K0 145 156 Q
• Fuel type: Petrol
• Part type: Power Steering Pump
• Category: Power Steering Pumps

Purpose and role in the steering system

The power steering pump in the Audi S5 8T is responsible for generating the hydraulic pressure that assists the driver during maneuvering and high-speed driving. In combination with the steering gear and high-pressure lines, it creates a cohesive system that influences:

• the force required to turn the steering wheel,
• driving stability during dynamic load changes,
• precision of response to steering inputs.

The version designed for petrol units is adapted to the engine's operating characteristics, its RPM range, and the loads typical for Audi sports models.

Compatibility and part identification

The offered pump comes from the Power steering pumps group and is a component dedicated to Audi vehicles, which facilitates selection based on the manufacturer's catalog data. Identification is based on the OEM part number and interchangeable numbers, allowing you to verify compatibility with a specific vehicle configuration, engine version, and model year.

For certainty of fitment, it is recommended to compare catalog data with the vehicle's service documentation or consult a mechanic specializing in the Audi brand, especially in the case of steering system modifications or the replacement of other hydraulic components.

Performance characteristics and installation benefits

The power steering pump in the Audi S5 8T has been designed for stable operation under a wide range of loads, typical for high-performance cars. The use of an original design translates into:

• maintaining factory steering feel and predictable response to driver inputs,
• proper cooperation with other hydraulic system components,
• reducing the risk of noise and vibrations resulting from component mismatch.

The element from this group is particularly important in vehicles with a petrol engine, where frequent RPM changes and a dynamic driving style require stable pressure in the power steering system. A properly selected pump helps maintain repeatable steering system performance over the long term.

Condition, installation, and service aspects

The offered power steering pump is a used component, which allows for an economical repair of the steering system while maintaining the original Audi design. Before installation, a standard service procedure is recommended, including:

• checking the cleanliness of the lines and fluid reservoir,
• replacing the power steering fluid with a medium recommended by the manufacturer,
• bleeding the system after installation, in accordance with the service procedure.

This approach minimizes the risk of cavitation, noise, and uneven system operation, and also supports stable pump operation in subsequent vehicle duty cycles.

System expansion and selection of related components

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 hydraulic lines, steering gear, or a fluid reservoir, check the available parts in the Audi Power steering pumps category.

For users who want to better understand the relationship between the fuel system and engine load, and indirectly the operation of auxiliary systems, an article describing the diagnostics and operation of engine supply components may be useful – you will find a detailed discussion in the material Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If your Audi belongs to the model years often referred to as youngtimers and you are planning a broader modernization using components from the secondary market, it is worth reading the guide on the conscious selection of used parts – you will find practical tips in the article The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.