Volkswagen Polo 6R Seat Ibiza 6J Audi A3 1.2 TSI 105HP Bare Engine CBZB 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.).

Volkswagen Polo 6R Seat Ibiza 6J Audi A3 1.2 TSI 105HP Bare Engine CBZB WARRANTY is a used, factory-spec engine block from the VAG group, designed for 1.2 TSI petrol units. This solution is intended for workshops and users who require a technically compatible, base block for professional repair or replacement of the powertrain, while maintaining compliance with the manufacturer's original specifications. By preserving key structural parameters, the bare engine serves as a solid foundation for further assembly with auxiliary components.

Specifications and technical data

• SKU: 03F100031F-2
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 03F100031F
• Substitutable numbers: 03F100031F, 03F 100 031 F, 03F100091A, 03F 100 091 A, 03F 100 091 AX
• Fuel type: Petrol
• Number of cylinders: 4
• Rim width: 6
• Category: Engines
• Engine code: CBZB
• Mileage: 59 000

Purpose and compatibility

The offered bare engine is dedicated to popular models from the group, such as the Volkswagen Polo 6R, Seat Ibiza 6J, and Audi A3 with the 1.2 TSI petrol engine (engine code: CBZB). The unit's design is optimized for operation in compact bodies, ensuring the right balance between dynamics and operating economy. A bare engine means it serves as a base for transferring auxiliary components from the previous unit, which facilitates maintaining the vehicle's configuration and reduces the overall cost of the operation.

Technical characteristics of the bare engine

The engine belongs to the Engines category and is designed as a four-cylinder petrol unit from the TSI family. This configuration ensures smooth operation, good refinement, and the ability to achieve favorable fuel consumption parameters while maintaining compact dimensions. The use of a turbocharged TSI design (within the given engine family) allows for efficient use of displacement, which is particularly important in modern city and compact cars.

The bare engine is suitable for further assembly with auxiliary components compatible with the CBZB code, allowing for the transfer of existing parts from the damaged engine, such as the fuel system, ignition system, or control elements, in accordance with manufacturer procedures and workshop practices.

Practical application in repairs

Replacing the engine block itself is a frequently chosen solution in situations of severe mechanical damage to the block or the crankshaft-piston system, while still being able to use functional auxiliary components from the existing unit. This scenario allows you to:

• reduce the total cost of repair compared to purchasing a complete engine,
• maintain the original configuration of auxiliary components and installations in the vehicle,
• adjust the scope of work to actual needs (e.g., replacing only the base element),
• maintain consistency with the factory structural solutions of the Volkswagen group.

The 1.2 TSI petrol unit with the CBZB code is widely used in the city and compact segment, which is why the availability of a bare engine is significant for both independent service centers and users planning long-term vehicle operation after repair.

Condition, verification, and selection based on technical data

The engine is offered as a used bare engine, which in practice means that a standard workshop inspection procedure (compression test, leak-down test, visual inspection of mating surfaces and threads) is recommended before installation. This approach allows for assessing the actual condition of the component and planning any necessary service activities before installation in the vehicle.

The selection of the bare engine for a specific car should be based on the engine code and the manufacturer's catalog data. If necessary, you can refer to the OEM part number and available interchangeable numbers to confirm compatibility with a specific equipment version and vehicle model year. This minimizes the risk of mechanical incompatibility or differences in mounting points.

Expert support and additional information

For users and workshops that want to approach the purchase of a used powertrain consciously, an expert guide describing facts and myths about the secondary drivetrain market, selection procedures based on VIN and OEM numbers, and cost analysis will be useful. A detailed discussion can be found in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which helps organize the decision-making process when choosing a used engine.

If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other components from the same group, such as additional bare engines, blocks, or complete power units, check out the available parts in the Volkswagen Engines category.