Power Steering Tank BMW E90 E91 E92 325d 330d Reservoir Return Line 1097164

BMW E90 M57N2 Power Steering Reservoir 1097164 is an original hydraulic system component designed for BMW models with the M57N2 engine, responsible for stable power steering pump supply. Thanks to its factory design, it ensures proper fluid circulation, reduces the risk of system air ingress, and supports precise steering gear operation. This is a practical solution for replacing a worn-out reservoir or repairing the entire power steering system.

Specifications and technical data

• SKU: 1097164-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6796348
• Substitutable numbers: 32416851217, 6851217, 32411124680, 1124680, 32411097164, 1097164, 32412227264, 2227264, 32410141426, 0141426, 32416781460, 6781460, 32416776709, 6776709, 32416764784, 6764784, BG
• Category: Coolant Hoses

Function and Role in the BMW E90 M57N2 Power Steering System

The power steering fluid reservoir in the BMW E90 with the M57N2 unit is responsible for storing and stabilizing the working fluid pressure in the steering system. A correctly selected component helps maintain the appropriate level of the working medium, which translates into smooth, predictable steering wheel operation during maneuvering and at higher speeds. The proper design of the reservoir minimizes fluid foaming, which is crucial for the longevity of the pump and hoses.

Compatibility and Fit for the Hydraulic System

The offered reservoir is part of the Power Steering Hoses group, working with the factory BMW hydraulic system. The use of original connector and mounting geometry facilitates installation in the engine bay, without the need for modifications to hoses or brackets. This allows the component to be used both for standard replacement of a worn-out reservoir and for more extensive power steering system repairs, including pressure and return lines.

Benefits of Using an Original BMW Reservoir

Choosing an original power steering fluid reservoir for the BMW E90 M57N2 primarily means maintaining the factory operating parameters of the steering system. The appropriately selected capacity and internal design of the reservoir support even fluid flow, which reduces pump noise and lessens the load on hydraulic components. Using an OEM part also allows for optimizing repair costs while ensuring proper fit with other system components.

Condition, Verification, and Service Application

The product is offered as a used part, making it a sensible choice for servicing older BMW E90 models with the M57N2 engine, where both functionality and repair economy are important. The reservoir can be used for:

• replacing a leaking or damaged power steering fluid reservoir,
• comprehensive hydraulic system service, including fluid replacement,
• steering system repairs after a pump or hose failure.

Using a component from the same design group as the factory part helps maintain the consistency of the entire system and reduces the risk of problems with bleeding or incorrect fluid levels.

If you are planning a comprehensive repair or upgrade of the steering system area in your BMW and need other parts from the same group, such as flexible hoses, return sections, or hydraulic branches, check the available parts in the BMW Power Steering Hoses category.

For MINI owners interested in a broader approach to car modernization, including the use of used mechanical and hydraulic system components, an article describing the characteristics of sports versions may be helpful – you can find more information in the material MINI John Cooper Works – what sets it apart and how to upgrade your MINI?.