Mercedes ML W164 Diesel OM629 Oil Reservoir Power Steering Pump Tank A0004602183

Mercedes ML W164 Diesel OM629 Oil Reservoir Power Steering Pump Tank is a specialized hydraulic system component designed for diesel engine models. It is responsible for the safe storage of operating oil and stable supply to the power steering pump, which translates into predictable steering system performance. By maintaining factory geometry and connections, it serves as a practical service solution for power steering system repairs in Mercedes ML W164 vehicles with the OM629 unit.

Specifications and technical data

• SKU: A0004602183
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0004602183
• Substitutable numbers: A0004602183, A 000 460 21 83
• Fuel type: Diesel
• Category: Power Steering Pumps

Purpose and function in the power steering system

The presented oil reservoir is a component from the Power steering pumps group, working with the hydraulic steering system in Mercedes diesel cars. Its task is to maintain the correct amount and circulation of operating fluid, which reduces the risk of cavitation, pressure drops, and noise during pump operation.

A properly selected oil reservoir for a specific model and OM629 engine type helps maintain:

• stable pressure in the power steering system under various loads,
• proper venting of the hydraulic circuit,
• adequate oil flow to the pump and steering gear.

Compatibility with the Diesel OM629 unit

Power steering systems in Diesel OM629 versions operate under significant load, which is why the oil reservoir must be matched to the characteristics of this engine. Using a dedicated component allows for compliance with factory hose routing, mounts, and power steering pump operating parameters, which facilitates installation and subsequent operation.

Thanks to this solution, it is possible to reduce the risk of leaks resulting from improper fitment and avoid problems with incorrect oil levels in the reservoir during dynamic driving.

Characteristics of the used OEM component

The offered power steering pump oil reservoir is a part sourced from dismantling, which means it is an original Mercedes component with factory specifications. In practice, this translates into maintaining the original geometry, connector diameters, and mounting points, without the need for adaptation or modifications to the installation.

A used OEM element is often a beneficial choice for several-year-old and older vehicles because it:

• maintains compatibility with the factory power steering system design,
• allows for optimizing repair costs while maintaining appropriate quality,
• minimizes the risk of assembly problems typical of replacements with different geometry.

You can find more about the advantages of original second-hand components in the article on the safety and cost-effectiveness of used OEM parts, which explains how to consciously select elements for car repairs.

Importance of correct selection by OEM and fuel system

When replacing the power steering pump oil reservoir in Mercedes cars, it is crucial to match the part to the specific diesel engine configuration. Proper selection by OEM number and compatibility with the Diesel fuel type limits the risk of installing an unsuitable element that could cause leaks or improper system operation.

If you want to better understand the relationships between engine accessories, the fuel system, and the selection of components by factory numbers, the guide on diagnostics and selection of fuel system elements by VIN and OEM, which discusses practical principles of part identification, will be helpful.

Expansion of the power steering system in Mercedes ML

If you are planning a comprehensive repair or upgrade of the steering system area in your Mercedes and need other elements from the same group, such as hydraulic hoses, a pump, or a steering gear, check the available parts in the Mercedes Power steering pumps category.

Selecting components from one functional group allows for maintaining consistency of operating parameters and also facilitates vehicle servicing in the future. Thanks to this, the power steering system in the Mercedes ML W164 with the OM629 engine can operate in a predictable manner consistent with the manufacturer's design.