BMW 3 Series E90 E91 Petrol N45 N46 Power Steering Suction Fluid Pipe Hose

BMW 3 Series E90 E91 Petrol N45 N46 Power Steering Suction Fluid Pipe Hose is an original hydraulic system component designed for BMW 3 Series models with N45 and N46 petrol engines. Thanks to its factory geometry and correct pipe diameter, it ensures stable pressure in the power steering system and proper cooperation with the pump and steering rack. It is a practical solution for users who want to restore full steering system efficiency without compromising on fitment.

Specifications and technical data

• SKU: 6764768
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6796325
• Substitutable numbers: 32416796325, 6796325, 32416851217, 6851217, 32411124680 32411097164, 32412227264 32410141426, 1124680 1097164, 2227264 0141426, 32416764768 32416781342, 6764768 6781342, 32416850281, 6850281, 6767998, 32416796320 32416764750, 6796320 6764750
• Fuel type: Petrol
• Category: Power Steering Pumps

Purpose and function in the power steering system

The power steering hose in N45/N46 engines is responsible for transporting hydraulic fluid between the pump and other system components. The proper design of the hose is crucial for:

• maintaining the correct operating pressure in the system,
• stable operation of the power steering pump and steering gear,
• reducing vibrations and noise transmitted to the steering wheel,
• minimizing the risk of fluid leaks at critical points of the installation.

Being dedicated to N45/N46 petrol units ensures that the hose is matched to the operating characteristics of these engines and the routing of the installation in the engine bay.

Compatibility with the fuel system and petrol engine

The product is intended for vehicles with a petrol engine, which is important both for the routing of hoses in the engine bay and for the thermal conditions in which the power steering system operates. In N45/N46 engines, the steering system works with a classic mechanically driven hydraulic pump, which is why the correct choice of hose is essential for:

• maintaining the appropriate power steering force characteristics at different engine speeds,
• ensuring proper fluid cooling during intensive use,
• limiting pressure drops along the hose section.

Proper matching to the specific engine configuration and E90/E91 body type allows for avoiding collisions with other equipment components and unwanted hose tension.

Assembly and operational characteristics

The hose has been designed as a Power steering pump system component, which means its ends, shape, and length are adapted to the factory mounting points in the BMW 3 Series E90/E91. In practice, this translates into:

• the possibility of installation in place of the original hose without modifications,
• proper positioning relative to suspension and body components,
• maintaining factory bending radii, which limits the risk of cracks and abrasions.

As a used part, the hose is a cost-effective solution for users who want to restore the efficiency of the power steering system while maintaining the original BMW specification.

Selection by OEM number and interchangeable numbers

The item has a dedicated OEM number and a set of interchangeable numbers, which facilitates precise identification of the part in BMW catalogs and VIN-based selection systems. This allows you to verify the compatibility of the hose with a specific body version, engine, and model year, minimizing the risk of purchasing an incompatible part. In case of doubt, it is worth comparing the part number with the vehicle documentation or the removed hose.

The importance of a functional power steering hose in a BMW

A functional power steering hose has a direct impact on driving comfort and safety. Leaks or damage can lead to:

• fluid loss and a decrease in steering efficiency,
• increased pump load,
• contamination of other components in the engine bay.

Replacing it with a properly selected hose allows for restoring the correct operation of the system, ensuring predictable steering performance in all conditions. This is especially important in cars that are used intensively or have higher mileage, where the hydraulic system is exposed to wear.

If you are planning a comprehensive repair or upgrade of the steering system area in your BMW and need other components from the same group, such as pressure hoses, return hoses, or pump supply elements, check the available parts in the BMW Power Steering Pumps category.

To better understand the cooperation of the steering system with the power unit and the impact of fuel type on vehicle operation, it is worth reading the article describing the construction and maintenance of the engine supply system: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.