BMW 1 3 SERIES E46 E87 E90 116i 316i Petrol N45 N45N Coolant Pump Mechanical

BMW E81 E87 E90 Power Steering Pump 116i 316i N45 is an original power steering system component designed for BMW cars with N45 gasoline engines. This used OEM part ensures a factory fit, correct operating pressure, and stable steering system performance without requiring any modifications. It's a solution for users looking for a proven power steering pump at a reasonable price, while maintaining original specifications.

Specifications and technical data

• SKU: 7500597
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7515778
• Substitutable numbers: 11517515778, 7515778, 11517511220 11517511221, 7511220, 7511221, 7500594, 11517572859, 7572859, 11517506576, 7506576, 7551569, 11517500597, 7500597
• Fuel type: Petrol

Intended Use and Compatibility

The presented power steering pump is dedicated to Series 1 E81/E87 and Series 3 E90 models in 116i and 316i versions with the N45 engine, powered by gasoline fuel. This guarantees the user that the mounting geometry, connection diameters, and operating characteristics are in line with the manufacturer's factory specifications.

Original origin from the BMW range means full integration with the factory steering system, proper cooperation with the steering rack, and maintaining the power steering force characteristics intended by the manufacturer across the entire engine speed range.

Technical Characteristics and Operation

The power steering pump is responsible for generating the correct pressure in the hydraulic system, which translates into smooth and predictable steering wheel operation. For N45 gasoline units, the pump's design is adapted to the typical loads of these engines, ensuring stable operation in both city driving and at higher speeds.

Key features of this pump include:

• factory fit for the N45 engine's drivetrain and accessories,
• designed for appropriate flow and pressure in the power steering system,
• compatibility with factory hoses and mountings in E81, E87, and E90 body styles.

By maintaining the original specifications, the user receives predictable, repeatable operating parameters, which are important for both driving comfort and the durability of other steering system components.

Condition, Origin, and Advantages of OEM Parts

The offered pump is a used part and an original BMW component, not a replacement of unknown origin. A used OEM part is a sensible compromise between cost and quality – you retain the factory fit, avoiding installation issues and unpredictable performance characteristics typical of many cheaper aftermarket parts.

Choosing an original, used power steering pump is particularly beneficial when you prioritize:

• maintaining the factory steering feel and predictable power assistance,
• no need for modifications to mountings or hoses,
• consistency with other hydraulic system components.

If you are considering whether to opt for a used OEM part or an aftermarket replacement, the following guide may be helpful: 5 Reasons Why a Used OEM Part Might Be a Better Choice Than an Aftermarket Replacement.

Installation and Practical Tips

The power steering pump for the N45 engine in E81, E87, and E90 body styles is designed as a direct replacement for the factory part, making the mechanic's job easier. When replacing, it is recommended to:

• check the condition of the high and low-pressure hoses,
• replace the power steering fluid with fresh fluid that meets the manufacturer's specifications,
• bleed the system after installation to avoid noise and loss of power steering effectiveness.

It is always advisable to confirm the correct pump selection based on the OEM number or interchangeable numbers assigned to the specific engine and body configuration. In case of doubt, VIN lookup tools and manufacturer catalogs can be helpful.

Why Choose a Used BMW Power Steering Pump

By using an original, used power steering pump, you maintain the consistency of the entire steering system with BMW's factory design. This solution is particularly recommended for drivers who expect predictable vehicle behavior, without experimenting with uncertain aftermarket parts. Furthermore, for hydraulic system components and engine accessories, used OEM parts often offer better durability than new, low-cost components.

If you are interested in a broader context of using used parts in a car – including selection by OEM numbers, compatibility issues, and practical examples – check out the guide: Do Used Car Modules and Components Make Sense – A Global Parts Guide.