BMW X3 E83 2.0i Petrol N46 150HP Complete Engine N46B20B 81k 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 X3 E83 2.0i Petrol N46 150HP Complete Engine N46B20B 81k miles, WARRANTY is an original powertrain unit with a four-cylinder design, intended for X3 E83 models with the 150 HP N46 engine. This is a solution for users and workshops looking for a verified, used engine with documented mileage, allowing for efficient repair or replacement of an existing unit. Thanks to the completeness of the accessories (as per the product title), the engine provides a practical base for a quick and organized replacement in the vehicle.

Specifications and technical data

• SKU: 0406822-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0406822
• Substitutable numbers: 11000406822, 0406822, 11000430938, 0430938, 11000406823, 0406823, 11000430939, 0430939
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Mileage: 81000

Technical characteristics of the N46B20B engine

The offered engine belongs to the N46 family of units used in the petrol-powered BMW X3 E83. The four-cylinder layout ensures a balanced combination of performance and refinement, and the 2.0i configuration is well-known in workshops specializing in the BMW brand. This unit was designed as a compromise between dynamics and moderate fuel consumption, making it a popular choice for both city and highway driving.

The engine is complete, which facilitates its transfer to the donor vehicle without the need for time-consuming sourcing of missing components. For workshops, this means a more predictable installation time, and for the user – greater confidence in the consistency of the components used.

Purpose and compatibility

The unit has been prepared for use in the BMW X3 E83 with the 2.0i N46 petrol engine. As a result, it is suitable as a replacement for factory-fitted engines in this model, provided that compatibility is correctly verified based on part numbers and vehicle equipment. The N46B20B family engine is well-recognized by independent BMW workshops, which facilitates diagnostics, maintenance, and any potential future service work.

Before purchasing, it is recommended to compare vehicle data (e.g., engine code and model year) with the offered unit to ensure full mechanical and electronic compatibility. Proper matching allows for avoiding additional installation modifications and speeds up the assembly process.

Condition, mileage, and benefits of choosing a used engine

The engine comes from a vehicle with specific mileage, which allows for a realistic assessment of its operational wear. For many BMW X3 E83 users, choosing a used powertrain unit is a reasonable alternative to costly overhauls or purchasing a new engine. A used complete engine enables the restoration of vehicle performance within a controlled budget, while maintaining the original operating characteristics of the N46 unit.

The engine's mileage is an important parameter when planning further operation – it allows the workshop to select the appropriate scope of service activities after installation (e.g., replacing selected seals, checking the timing system, or the lubrication system). This allows work to be planned in a way that minimizes the risk of unforeseen downtime in the future.

Professional installation and service recommendations

To achieve stable and trouble-free operation of the unit, installation in a specialized workshop with experience in BMW N46 engines is recommended. During installation, it is worth performing a standard package of service activities, such as changing the oil and filters, checking the cooling system, and verifying the tightness of all connections. Properly performed installation significantly affects the durability and reliability of the engine in the following years of use.

After starting the unit in the vehicle, it is advisable to perform computer diagnostics to confirm proper communication with the car's electronics and the absence of errors in the engine control unit. This is a standard procedure that allows for quickly identifying and correcting any potential irregularities.

BMW engines – additional options

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 powertrain units, check out the available parts in the BMW Engines category.

Technical knowledge and support in choosing

Before making a decision to replace the powertrain unit, it is worth familiarizing yourself with the typical problems of BMW petrol engines to better plan the scope of work and budget. Our guide on the brand's problematic units may be helpful – especially in the context of the E90 series, where many design solutions are similar. More information can be found in the article Problematic BMW E90 engines: check what can ruin your budget!.

If you want to organize the process of purchasing used components and learn how to safely verify offers, select parts by OEM numbers, and work with a workshop, use the practical Global Parts guide: Safe purchase of used car parts online – a step-by-step guide. This will make it easier for you to assess whether the presented engine is the right choice for your BMW X3 E83.