BMW X3 Series E83 2.0i Petrol N46 Complete Engine N46B20B New Timing 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.

The BMW X3 E83 2.0i N46 Engine N46B20B New Timing Chain is a complete gasoline engine from the N46 family, designed for the BMW X3 E83 2.0i. This unit features a modern four-cylinder design, optimized for smooth operation, fuel economy, and stable performance in everyday use.

Specifications and technical data

• SKU: 0406822-3
• 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: 59 000

Technical Characteristics of the N46B20B Engine

The presented engine belongs to the N46 family, which are four-cylinder BMW gasoline units designed for precise operation and good throttle response. The inline cylinder arrangement ensures even mechanical load and predictable behavior across the entire RPM range.

The engine is designed to run on gasoline, offering a favorable balance between dynamics and fuel consumption. The four cylinders operate in a configuration optimized to reduce vibrations and noise, contributing to a comfortable driving experience in the BMW X3 E83 2.0i.

New Timing Chain – A Key Operational Advantage

A significant advantage of this unit is the new timing chain, which greatly enhances its usability. Replacing timing chain components is one of the most critical maintenance operations for internal combustion engines. A new set means:

• increased operational reliability across a wide RPM range,
• reduced risk of failures related to timing chain slippage or wear,
• stable valve timing, promoting smooth engine operation and correct torque characteristics.

For BMW X3 E83 owners, this translates to real savings on future repair costs and greater peace of mind during both highway and city driving.

Application and Fitment for BMW X3 E83 2.0i

The BMW X3 E83 2.0i N46 Engine N46B20B New Timing Chain is designed as a dedicated powertrain unit for the specific configuration of the X3 E83 model with the 2.0i engine. This ensures preserved factory mounting points, compatibility with accessories, and predictable performance parameters when paired with the vehicle's original electronics.

This engine is particularly attractive for users who:

• are planning a professional engine replacement after a failure of the existing engine,
• want to restore full functionality to their BMW X3 E83 2.0i while maintaining the original specifications,
• are looking for a used engine with a recently replaced timing chain, reducing the scope of additional service work.

Condition, Mileage, and Benefits of Choosing a Used Engine

This unit is sourced from the aftermarket, significantly reducing repair costs compared to purchasing a brand-new engine. The declared mileage is relatively low for this generation of engines, which, combined with the new timing chain, offers a favorable technical and economic proposition.

Choosing this unit means:

• a rational approach to vehicle repair costs while maintaining an adequate margin of operational safety,
• the ability to continue driving the BMW X3 E83 without the need for a complete overhaul of the old engine,
• better service predictability thanks to the recently performed timing chain service.

For more information on how to safely and wisely choose used powertrains, refer to the guide Why Buy Used Gearboxes and Engines – Facts Instead of Myths, which discusses topics such as selecting by OEM numbers and practical cost calculation examples.

BMW Engines – Selection and Alternatives

If you are also looking for other BMW engines for various models of this brand, check out our dedicated category: BMW Engines. Here you will find a wide selection of powertrains, making it easier to find the right engine for a specific trim level and vehicle year.

For owners of older models from 1998–2012 who plan to restore full functionality or gradually modernize their cars, the article Second Life for a Youngtimer – How Used Car Parts Revitalize Cars from 1998–2012 may also be helpful, describing practical scenarios for using used components in restoration projects.

Summary

The BMW X3 E83 2.0i N46 Engine N46B20B New Timing Chain is a technically matched, four-cylinder gasoline unit prepared for users seeking a sensible compromise between repair costs and operational safety. A used engine with a new timing chain provides a solid foundation for continued driving, allowing for the restoration of full functionality to the BMW X3 E83 2.0i while maintaining its original operating characteristics.