Mercedes W164 W204 M272 Petrol Power Steering Pump Hydraulic Unit A0054664201

Mercedes W164 W204 M272 Petrol Power Steering Pump Hydraulic Unit is a precision hydraulic component designed for petrol-engine vehicles, ensuring stable pressure within the steering system. Thanks to a design compliant with manufacturer standards, the pump enables smooth, predictable steering assistance, which translates into driving comfort and safety. This is a solution for users expecting consistent steering system performance and a technically matched component for a specific powertrain.

Specifications and technical data

• SKU: A0054664201
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0054664201
• Substitutable numbers: A0054664201, A 005 466 42 01
• Fuel type: Petrol
• Category: Power Steering Pumps

Purpose and role in the power steering system

The described pump is a component from the Power steering pumps group, responsible for generating and maintaining operating pressure in the steering system of Mercedes vehicles with the M272 petrol engine. A correctly selected pump reduces steering resistance, stabilizes the response to driver input, and supports precise vehicle handling across the full speed range.

In the event of symptoms such as noise when turning, intermittent loss of power steering, or uneven system operation, replacing the pump with a component that meets factory specifications is crucial for maintaining predictable vehicle behavior.

Compatibility and selection by markings

The pump has been designed for use in Mercedes W164 and W204 class models with the M272 petrol engine, which facilitates technically correct part selection for a specific vehicle configuration. Using a dedicated component minimizes the risk of installation issues, leaks, or improper hydraulic system operation.

It is always worth confirming the pump selection based on the manufacturer's markings and vehicle data to ensure full compatibility with the powertrain and steering system. A properly matched component allows for maintaining factory steering characteristics without the need for system modifications.

Performance characteristics and installation benefits

As a component intended for the power steering system in petrol-powered cars, the pump is adapted to the typical operating conditions of the M272 unit, including RPM ranges and hydraulic loads. As a result, it provides:

• stable operating pressure in the steering system,
• more predictable vehicle response to steering wheel movements,
• reduced mechanical load on cooperating components,
• maintained maneuvering comfort, especially at low speeds.

The used condition means that the component comes from dismantling, which allows for an economical restoration of system efficiency while maintaining a design consistent with the manufacturer's solutions. This is a practical solution for repairs where both functionality and cost control are important.

Professional use in service and system regeneration

The power steering pump in Mercedes vehicles with the M272 petrol engine is a vital element in service processes related to the steering system – both for preventive replacement and after a failure. When combined with properly selected hydraulic fluid and a leak-free hose installation, it allows for achieving stable operating parameters for the entire system.

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

Technical support and component selection

When working with hydraulic components in petrol-powered vehicles, it is worth paying attention to proper diagnostics and selecting parts according to manufacturer markings and vehicle specifications. Detailed information on selection principles, diagnostics, and the regeneration of fuel supply components and cooperating systems can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses practical aspects of working with subassemblies in petrol vehicles.

Combining a properly selected power steering pump with a reliable installation and system bleeding procedure allows for restoring driving comfort and reducing the risk of premature wear of other steering system components. Thanks to this, the Mercedes W164 W204 M272 Petrol Power Steering Pump Hydraulic Unit serves as a functional basis for effective repair and further, stable vehicle operation.