BMW Z4 Series E85 2.0i N46 150HP Complete Engine N46B20B with 64k m WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The warranty covers the engine itself; engine accessories are covered by a 30-day warranty.

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

Listing details

The offer applies to a complete engine.

The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification.

BMW Z4 Series E85 2.0i N46 150HP Complete Engine N46B20B with 64k m WARRANTY is a factory-spec powertrain unit designed for the petrol version of the Z4 with a four-cylinder inline configuration. This is the ideal solution for users who expect consistent mechanical compatibility, the preservation of original performance characteristics, and guaranteed fitment with the factory installation in the Z4 E85 model.

Specifications and technical data

• SKU: 2150313-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2150313
• Substitutable numbers: 11002150313, 11002150316, 2150313, 2150316
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Mileage: 59 000

Purpose and characteristics of the unit

The described engine belongs to the Engines category and is dedicated to the BMW Z4 E85 series with the N46B20B petrol unit, featuring a catalog power output of 150 HP. The four-cylinder design provides a balanced compromise between dynamics and refinement, while the use of petrol fuel promotes smooth power delivery across the entire rev range.

The unit is complete, which facilitates the transfer of the drivetrain to another Z4 E85 2.0i chassis without the need for extensive mechanical modifications. As a result, the engine is suitable both for standard replacement of a worn-out unit and for restoration projects where maintaining the original model specification is key.

Technical construction and operating parameters

The N46B20B engine is an inline, four-cylinder petrol unit designed for precise handling and predictable throttle response. The four-cylinder layout promotes even load distribution, which translates into stable operation within typical operating rev ranges.

The mileage of the unit falls within the typical range for a used engine of this generation, allowing for continued operation after performing standard service procedures, such as oil and filter changes or accessory inspection. This type of engine fits well with the needs of users who want to restore the drivetrain efficiency in a Z4 E85 without sacrificing the original driving characteristics.

Application in the BMW Z4 E85 2.0i

The N46B20B powertrain unit was developed specifically for lightweight, rear-wheel-drive BMW constructions, such as the Z4 E85. When paired with the appropriate transmission, it provides linear power delivery, which is important both in daily driving and when utilizing the car's full dynamic potential.

The R4 petrol engine works seamlessly with factory BMW control and diagnostic systems, which facilitates integration with the vehicle's existing electrical installation. Consequently, the engine replacement process can be carried out in an organized manner, maintaining factory mounting points and the design solutions intended by the manufacturer.

Condition, verification, and benefits of installation

The engine is offered as used, which means that a standard workshop inspection and preparation for further operation in accordance with BMW service procedures are recommended before installation. The unit's mileage allows for continued use after basic maintenance tasks, and the completeness of the engine limits the need to search for additional mounting components.

Choosing a complete engine from the same family of units that was factory-fitted in the BMW Z4 E85 2.0i minimizes the risk of compatibility issues, simplifies engine control unit configuration, and allows for the preservation of the performance and operating characteristics intended by the manufacturer. This solution is particularly beneficial for repairs where technical consistency with the original vehicle design is a priority.

BMW Engines – expansion and additional information

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, cylinder heads, or complete long blocks, check out the available parts in the BMW Engines category.

For users interested in a broader context of BMW powertrain operation, including common issues and potential repair costs, a guide describing critical designs in the 3 Series may be helpful. It is worth reading the article Troublesome BMW E90 engines – a practical guide to problematic units to better plan the service and operation of your car.