VW Tiguan 5N Seat Alhambra Audi Q3 8U 2.0 TDI Bare Engine CUWA 59k, 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.).

VW Tiguan 5N Seat Alhambra Audi Q3 8U 2.0 TDI Bare Engine CUWA 59k, WARRANTY is a used, factory-spec engine block from the TDI family, designed for modern Volkswagen Group models. This bare unit provides a solid foundation for professional repair or a complete powertrain rebuild, ensuring high installation compatibility. By maintaining the original design of the compression-ignition engine, it is an attractive solution for both workshops and informed users.

Specifications and technical data

• SKU: 04L100090L
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 04L100090L
• Substitutable numbers: 04L100090L, 04L 100 090 L, 04L100090LX, 04L 100 090 LX, 04L100091P, 04L 100 091 P
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Engine code: CUWA
• Mileage: 59 000

Technical characteristics of the CUWA engine block

The presented engine is a bare block, meaning a complete mechanical base without accessories, prepared for transferring existing auxiliary components from a damaged unit. The design is based on a four-cylinder inline layout, typical for modern Volkswagen Group diesels, which facilitates service and access to maintenance parts.

The unit belongs to the 2.0 TDI diesel engine family, designed for efficient diesel fuel combustion and stable operation across a wide range of loads. The engine code used allows for precise matching to a specific vehicle configuration, which is crucial for professional block replacement in VW Tiguan, Seat Alhambra, and Audi Q3 models.

Application in Volkswagen Group vehicles

The CUWA engine is used in popular SUV and van segment models, where a combination of reasonable fuel consumption and adequate dynamics is valued. In practice, this means the block will perform well in cars used both in city traffic and on longer routes, ensuring smooth operation and predictable behavior under load.

Thanks to the use of a uniform powertrain architecture across many of the group's models, the workshop has the ability to use existing accessories and installations, which reduces vehicle downtime and simplifies the assembly process. This solution is particularly beneficial for post-accident repairs or after major mechanical failures.

Benefits of installing a used diesel engine block

Choosing a used block from the 2.0 TDI family is a reasonable compromise between repair cost and solution durability. The diesel unit provides:

• the ability to use existing vehicle accessories and electronics,
• preservation of the factory engine operating characteristics,
• cost reduction compared to purchasing a complete new engine,
• greater control over the rebuild process – the workshop decides which additional components will be replaced.

Additionally, the four-cylinder design facilitates service and diagnostics, which is important for subsequent maintenance.

Professional selection and compatibility

When selecting a block, it is crucial to pay attention to the engine code and compatibility with the specific vehicle equipment version. Proper matching allows for maintaining full powertrain functionality without the need for interference with the electrical installation or control units. In case of doubt, it is worth using part numbers and service documentation to avoid compatibility issues.

If you are interested in a broader context of diesel unit operation and potential issues, a guide regarding problematic units in other brands may be helpful – check out the article Faulty BMW E90 engines – a practical guide to problematic units, which shows what to look for when choosing and servicing an engine.

Volkswagen engines – expansion and modernization

If you are planning a comprehensive repair or modernization of the engine area in your Volkswagen and need other components from the same group, such as blocks, cylinder heads, or crankshafts, check out the available parts in the Volkswagen Engines category.

For a fuller understanding of how to safely use components from the secondary market – especially in the context of control units and sensors working with the powertrain – it is also worth reading the guide used automotive electronics – why second-hand ECU modules and sensors make sense, which discusses selection by numbers, compatibility issues, and practical aspects of assembly.