BMW F40 M135iX X2 F39 M35iX Complete Engine B48A20E B48E 306HP 25k, 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 F40 M135iX X2 F39 M35iX Complete Engine B48A20E B48E 306HP is a complete powertrain unit from the B48 family, designed for modern BMW models with xDrive. This high-power petrol engine provides dynamic acceleration while maintaining the refinement characteristic of this series. It is an ideal solution for users expecting a proven design and seamless compatibility with the vehicle's factory electronics.

Specifications and technical data

• SKU: 5A07793-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A07793
• Substitutable numbers: 5A07793, 11005A07793
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Engine code: B48A20E
• Mileage: 25 000

Technical characteristics of the B48A20E unit

The presented engine belongs to the modern B48 family, designed for efficient power delivery in compact and mid-size BMW models. The four-cylinder configuration promotes balanced operation, and the use of petrol injection allows for high power output while maintaining predictable torque characteristics. The version used in the M135iX and X2 M35iX is factory-prepared for all-wheel drive, which translates into stable power transfer to the road.

A complete engine means you receive a unit ready for installation as the primary power source, without the need to assemble it from many separate components. This solution is particularly beneficial for major repairs, where component consistency and minimizing the risk of fitment issues are crucial.

Application in BMW F40 M135iX and X2 F39 M35iX

The B48A20E powertrain in this configuration is intended for BMW F40 M135iX and BMW X2 F39 M35iX models, where it is responsible for sporty driving characteristics. In these vehicles, the engine works with advanced traction and stability systems, which is why choosing a complete powertrain unit makes it easier to maintain the full functionality of factory solutions.

The engine from this series is a popular choice both for replacing a damaged unit and for modernization projects within the same platform. By maintaining the original engine code, it is possible to ensure compatibility with the control software and factory operating parameters.

Benefits of installing a complete petrol engine

Choosing a complete petrol engine from the B48 family offers a number of practical advantages:

• reduced repair time compared to overhauling an old unit,
• maintaining structural consistency and compatibility with the equipment intended for this power version,
• the ability to restore the full dynamics of the factory M135iX / M35iX version,
• easier diagnostics after installation due to compliance with factory ECU maps.

An additional advantage is the relatively low mileage, which is significant for the further operation of a used powertrain unit. Lower wear and tear translates into a greater safety margin for future use and a better base for any potential future modifications.

Condition, origin, and installation aspects

The engine comes from dismantling and is offered as a used part, which allows for a significant reduction in repair costs compared to a brand-new unit. At the same time, the original manufacturer's specification is maintained, which facilitates installation in place of the previous engine without the need for structural modifications. The Engines category includes key components for the vehicle's drive system, which is why selecting the right unit has a direct impact on the reliability of the entire system.

Before installation, a standard preparatory procedure is recommended: leak testing, verification of accessories, replacement of consumables, and adapting the control software to the specific vehicle. This approach minimizes the risk of unforeseen downtime after replacement and allows you to fully utilize the unit's potential.

Technical support and additional materials

When planning a powertrain replacement, it is worth considering the experiences of users of other BMW models. For example, the E90 series showed how important it is to have a conscious approach to engine selection and checking for common faults. To better understand what to look for when operating BMW units, read the article: Troublesome BMW E90 engines – a practical guide to problematic units.

If you are planning a comprehensive repair or modernization 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.