Audi A4 B6 B7 1.8 T Petrol Bare Engine BFB 163HP with 99k 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.).

Audi A4 B6 B7 1.8 T Petrol Bare Engine BFB 163HP with 99k miles, WARRANTY is a used, complete bare engine block from the Audi petrol unit family, designed for professional repairs and replacements in A4 B6 and B7 generation models. This is a solution for users who expect a proven base for existing ancillaries and want to maintain the performance characteristics typical of the turbocharged 1.8 T. By retaining the original BFB code specification, the bare engine provides a solid foundation for restoring the full efficiency of the drivetrain.

Specifications and technical data

• SKU: 06B100033S
• Mark: Audi
• Condition: Used
• OEM Part Number: 06B100033S
• Substitutable numbers: 06B100033S, 06B 100 033 S, 06B100098LX, 06B 100 098 LX
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Engine code: BFB
• Mileage: 99 000

Technical characteristics of the BFB bare engine

The presented engine belongs to the Engines category and is designed for petrol fuel, which ensures the refinement and flexibility in the mid-RPM range typical of 1.8 T units. The four-cylinder design promotes a balance between performance and fuel consumption, and the turbocharging in the BFB version allows for 163 HP while maintaining reasonable mechanical loads.

A bare engine means you receive the base part of the powertrain – the block with the cylinder head – prepared for transferring the ancillaries from your current engine. This configuration is particularly beneficial for repairs where the ancillaries remain in good working order and only the mechanical base requires replacement.

Application in Audi A4 B6/B7

The engine with the BFB code is factory-designed to work with the Audi A4 B6 and B7 platform, which facilitates the installation process and subsequent operation. Maintaining the original engine code minimizes the risk of compatibility issues with the engine control unit (ECU), wiring harness, or fuel system.

In practice, this means that with proper selection via VIN and adherence to installation procedures, the bare engine can be integrated into the existing drivetrain without the need for costly structural modifications. This solution is often chosen by workshops specializing in the Audi brand that are looking for a technically consistent replacement for a worn or damaged unit.

Condition, mileage, and benefits of choosing a used engine

The unit is offered as used, with documented mileage, which allows for a realistic assessment of its wear. For many users and service centers, choosing a used bare engine is a reasonable compromise between cost and durability – especially in the case of popular, turbocharged Audi petrol engines.

By choosing such an engine, you gain:

• the possibility of significantly reducing repair costs compared to a brand-new unit,
• preservation of the original 1.8 T BFB performance characteristics,
• a base for further maintenance and potential modifications based on a well-known design.

Additionally, a used bare engine allows for reducing vehicle downtime – after verification and preparation by a workshop, it can be relatively quickly adapted to replace the damaged unit.

Selection by OEM/VIN and technical support

When selecting an engine, it is crucial to compare the unit code and OEM number with the vehicle data. Proper identification via VIN and part numbers limits the risk of accessory incompatibility, differences in mounts, or electronic issues. It is worth using procedures applied by professional service centers to ensure that the selected bare engine will be suitable for the specific configuration of your Audi A4.

If you want to deepen your knowledge about the cost-effectiveness of purchasing used powertrains and the principles of their proper selection, read the article Why it is worth buying used gearboxes and engines – facts instead of myths, where you will find practical tips, cost examples, and answers to the most frequently asked questions.

Repairs and tuning of Audi using used components

The BFB 1.8 T engine is a good base for both standard repairs and further modifications as part of reasonable tuning. The popularity of this unit among Audi users means that the availability of ancillaries, consumables, and service knowledge is extensive, which makes it easier to keep the car in good working order for years to come.

If you are interested in a broader context of using second-hand components in the Audi brand – from engines and drivetrains to suspension elements – it is worth reading the guide Audi on second-hand parts – tuning and repairs without losing quality, which shows how to reasonably combine savings with maintaining proper driving parameters.

If you are planning a comprehensive repair or modernization of the engine area in your Audi and need other elements from the same group, such as blocks, heads, or complete powertrains, check the available parts in the Audi Engines category.