BMW E46 325xi X3 E83 2.5i Complete Engine M54 256S5 192HP 99k miles 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 E46 325xi X3 E83 2.5i Complete M54 256S5 Engine is a complete, six-cylinder gasoline engine from the M54 family, designed for BMW models with four-wheel drive. The unit provides a solid base for a professional engine replacement in E46 325xi 3 Series and X3 E83 2.5i cars, ensuring structural consistency with factory specifications.

Specifications and technical data

• SKU: 0140990-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0140990
• Substitutable numbers: 11000140990, 0140990, 11000140991, 0140991
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Mileage: 59 000

Technical Characteristics of the M54 256S5 Engine

The presented engine set belongs to the popular M54 series, known for its smooth operation and predictable performance characteristics. The inline six-cylinder layout contributes to a refined running experience and stable power delivery, translating into smooth acceleration and good throttle response under typical driving conditions.

The unit is designed for gasoline fuel, which facilitates maintaining proper combustion parameters and compatibility with the factory control electronics in BMW E46 325xi and X3 E83 2.5i models. The M54 256S5 design was developed for everyday use, while maintaining adequate durability reserves for the xDrive system.

Intended Use and Compatibility with BMW E46 325xi and X3 E83 2.5i

The Complete M54 256S5 Engine is dedicated for use in BMW 3 Series E46 325xi and BMW X3 E83 2.5i cars, where it works with the four-wheel-drive system. By maintaining the original engine unit architecture, it is possible to restore the vehicle's factory performance characteristics without the need to modify basic structural components.

The engine is designed as an element in the Engines category, meaning its mounting geometry, support points, and installation method are consistent with solutions used by the manufacturer. This facilitates the installation process in E46 and E83 bodies, reducing the need for additional mechanical modifications.

Condition, Mileage, and Operational Potential

The unit comes from the used BMW engines segment, allowing for an economical drivetrain rebuild while maintaining the original design. The declared mileage provides a favorable starting point for further operation after performing standard service procedures recommended for engine replacement (fluid and filter changes, accessory inspection according to workshop procedures).

The inline six-cylinder layout, combined with moderate mileage, promotes the maintenance of stable operating parameters, provided proper installation and adherence to the vehicle manufacturer's service recommendations.

Practical Application and Benefits of Installation

Replacing the engine unit with a complete M54 256S5 engine in a BMW E46 325xi or X3 E83 2.5i allows for:

• Restoring drivetrain functionality in case of a major failure of the existing engine.
• Maintaining original driving characteristics by using a unit consistent with the factory BMW design.
• Optimizing repair costs by choosing a complete, used engine instead of a full rebuild of the damaged unit.

This solution is particularly beneficial for users who want to keep their car in a configuration close to the factory standard, without experimenting with other engine types or non-manufacturer adaptations.

Selection by Numbers and Technical Support

When selecting an engine, it is crucial to verify compatibility based on part numbers and vehicle data (VIN) to ensure full compatibility with the electronics, accessories, and drivetrain. If you have doubts about the fitment, it is advisable to use the procedures described in the expert guide: Why Buy Used Gearboxes and Engines – Facts Instead of Myths, which discusses, among other things, selecting engine units by VIN and OEM numbers.

Other BMW Engines in the Offer

If you are also looking for other engines from this brand, check out the available BMW engines to compare different variants in terms of design, intended use, and installation potential in your model.