BMW Z4 Series E85 2.0i N46 150HP Bare Engine N46B20B with 72k miles, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

BMW Z4 Series E85 2.0i N46 150HP Bare Engine N46B20B with 72k miles, WARRANTY is an original, used engine block from the N46 family, designed for the petrol version of the Z4 E85. The bare engine serves as a solid foundation for a professional engine rebuild, allowing for the transfer of accessories from your previous unit while maintaining factory performance characteristics. By adhering to the correct design specifications, this is a particularly attractive solution for repairs requiring the replacement of the block and cylinder head.

Specifications and technical data

• SKU: 2151466
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2151466
• Substitutable numbers: 11002151466, 2151466, 11002151467, 2151467
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Mileage: 59 000

Technical characteristics of the N46B20B bare engine

The presented engine is a bare petrol engine from the N46 series, dedicated to the BMW Z4 E85 2.0i with a catalog power of 150 HP. The design, based on four cylinders in an inline configuration, ensures smooth operation and good refinement, while also facilitating maintenance and future repair work. The unit belongs to a more modern generation of BMW engines, which translates into favorable performance parameters and the possibility of continued operation after a properly executed replacement.

The bare engine is particularly recommended in situations where the existing engine has suffered mechanical damage (e.g., a cracked block, severe head damage), while the accessories remain in a condition suitable for further use. This allows for optimized repair costs while maintaining compliance with the model's factory specifications.

Application in the BMW Z4 E85 2.0i

The N46B20B engine is intended for installation in the BMW Z4 E85 2.0i, a premium roadster where proper performance and predictable power delivery characteristics are key. Using the correct bare engine from the same family of power units allows you to maintain:

• proper cooperation with the factory engine control unit and electrical system,
• compatibility with the original drivetrain,
• consistency with existing accessories (after their proper transfer).

As a result, the engine replacement can be carried out in an orderly manner, adhering to the service standards typical for the BMW brand.

Benefits of choosing a used bare engine

Choosing a used bare engine for the BMW Z4 E85 2.0i is a solution often preferred by workshops and informed users who want to combine reasonable costs with maintaining appropriate quality. This type of component allows you to:

• reduce expenses compared to purchasing a brand-new unit,
• maintain the original engine specification without the need for adapting other solutions,
• carry out repairs based on a proven OEM design.

An additional advantage is the possibility of thoroughly preparing the engine before installation – from leak testing and measurements to potential preventive maintenance, which increases the predictability of future operation.

OEM selection and installation procedures

To correctly select a bare engine for a specific BMW Z4 E85, it is recommended to use the OEM number and interchangeable numbers, as well as verification via the vehicle's VIN. This helps avoid compatibility issues and ensures that the engine used will work with the existing installation and control systems. During installation, pay attention to:

• transferring all accessories from the previous unit (according to the manufacturer's recommendations),
• replacing consumables and seals,
• properly bleeding the systems interacting with the engine.

This approach minimizes the risk of subsequent failures and allows you to fully utilize the potential of the installed engine.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as blocks, heads, or complete power units, check the available parts in the BMW Engines category.

Substantive support and expert knowledge

When making a decision to purchase a used bare engine, it is worth relying on reliable technical information and real-world cost examples. A detailed discussion of the advantages, limitations, and procedures for selection by VIN and OEM numbers can be found in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which provides practical knowledge to supplement your planning for the repair of your BMW Z4 E85 power unit.