BMW 1 3 Series E81 E87 LCI E90 118d 318d N47 Complete Engine N47D20A 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 1 3 Series E81 E87 LCI E90 118d 318d N47 Complete Engine N47D20A WARRANTY for the 1 and 3 Series (E81, E87 LCI, E90) is a factory diesel unit prepared as a ready-to-install powertrain for 118d and 318d models. This is a solution for users who want to restore their vehicle's performance in a technically correct and cost-effective manner, while maintaining the original operating characteristics of the N47 unit and full compatibility with the factory installation. By adhering to OEM specifications, the engine ensures consistency with the vehicle's factory equipment and electronics.

Specifications and technical data

• SKU: 2146549-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2146549
• Substitutable numbers: 11002146549, 2146549, 11000433009, 0433009, 11000427824, 0427824, 11000441287, 0441287, 11002146550, 2146550, 11000433010, 0433010, 11000427825, 0427825, 11000441289, 0441289, N47, N47D20, 143HP
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Mileage: 59 000

Purpose and compatibility

The offered complete diesel engine is designed for BMW 1 Series and 3 Series models with the N47D20A unit, particularly for 118d and 318d versions in E81, E87 LCI, and E90 body styles. The design, based on a four-cylinder inline layout, provides a compact structure, good refinement, and efficient use of engine bay space. The unit belongs to the N47 family, which means it retains the torque characteristics and flexibility typical of this series for daily use.

Technical characteristics of the N47D20A unit

The engine belongs to the Engines category and is factory-designed as a modern diesel unit with direct fuel injection. The four-cylinder architecture allows for a favorable compromise between dynamics and fuel consumption, which is particularly important in compact and mid-size cars. The use of diesel fuel translates into high thermodynamic efficiency and the characteristic strong low-end torque, valued in daily city and highway driving.

The engine is complete as a powertrain, which facilitates the replacement process in the workshop and reduces vehicle downtime. The unit maintains the factory parameters intended for the 143 HP version in the N47D20 family, allowing for the restoration of the vehicle's original performance without the need for ECU or installation modifications.

Condition, mileage, and benefits of choosing a used engine

The offered unit is a used OEM engine, which means it comes from vehicle dismantling and retains the manufacturer's original specifications. The declared engine mileage is important information when planning further operation and estimating potential service life. Choosing a complete, used OEM engine is often a cost-effective solution compared to repairing a severely damaged unit or purchasing a new powertrain.

The used BMW N47D20A diesel engine allows for:

• restoring full vehicle performance while maintaining factory operating characteristics,
• reducing repair costs compared to purchasing a new unit,
• maintaining compatibility with existing vehicle equipment and electronics.

Selection by OEM and interchangeable numbers

The engine has an assigned OEM part number and a set of interchangeable numbers, which significantly facilitates its correct selection for a specific BMW vehicle. Verification of compatibility by part number, reference numbers, and vehicle data (including the VIN) is crucial to avoid installation problems and ensure full functionality after replacement. This allows for precise matching of the unit to the specific equipment version, model year, and power variant in the N47 family.

To better understand the real benefits of purchasing a used engine and how to properly carry out the selection process by VIN and OEM numbers, it is worth reading our expert guide: Why it is worth buying used gearboxes and engines – facts instead of myths. The article discusses, among other things, verification procedures, common myths, and cost ratios compared to other repair solutions.

Installation and operational recommendations

Before installing the complete N47D20A engine, it is recommended to perform standard preparatory activities, such as checking for leaks, verifying the condition of accessories transferred from the old unit, and replacing consumables in accordance with BMW service procedures. A properly performed installation, combined with appropriately selected engine oil and regular service maintenance, allows for stable, predictable operation of the unit in the long term.

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 powertrains, check out the available parts in the BMW Engines category.

For a broader look at the market for used powertrain components and other sub-assemblies in popular car models, you can also use our guide: The best used car parts – a guide to the most frequently chosen original parts. This is a practical supplement to your knowledge when planning major repairs or vehicle upgrades.