VW Golf Mk4 Audi TT 8N Seat Leon 1.8 T Bare Engine AUQ 180HP 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.).

VW Golf Mk4 Audi TT 8N Seat Leon 1.8 T Bare Engine AUQ 180HP 99k miles, WARRANTY is a used, complete block with cylinder head, sold without ancillaries, designed for professional repairs and conversions in VAG group vehicles. By maintaining the factory AUQ code specification, it serves as a solid base for engine rebuilding or engine swaps in both stock and slightly tuned projects. This is a solution for users looking for a proven 1.8 T petrol engine with well-known performance characteristics.

Specifications and technical data

• SKU: 06A100098JX
• Mark: Audi
• Condition: Used
• OEM Part Number: 06A100098JX
• Substitutable numbers: 06A100098JX, 06A 100 098 JX
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Engine code: AUQ
• Mileage: 99 000

Technical characteristics of the AUQ 1.8 T engine

The presented engine belongs to the popular 1.8 T series, valued for its stable operation, good refinement, and extensive service potential. The unit is powered by petrol, which facilitates tuning and ensures predictable behavior under load. The configuration includes four cylinders, which translates into a compact design, easy service access, and wide availability of maintenance parts.

The AUQ code is well-recognized among mechanics and tuners, making the selection of ancillaries, gaskets, or timing components straightforward and free of guesswork. The bare engine allows you to transfer your own ancillaries from the previous unit or use new components consistent with your project requirements.

Application in VW, Audi, and Seat models

The AUQ 1.8 T engine is used in popular models such as the fourth-generation VW Golf, Audi TT 8N, and first-generation Seat Leon. This compatibility makes the engine a popular choice for both standard repairs and modernization projects within the VAG group platform. The Engines category includes key elements for restoring full powertrain efficiency, and this engine is the right base for further configuration of ancillaries.

The 1.8 T petrol unit with the AUQ code works well with the stock gearboxes used in the mentioned models, which facilitates installation without the need for major mechanical modifications. This allows you to focus on the correct assembly of ancillaries, cooling, and fuel systems while maintaining factory mounting geometry.

Mileage, condition, and potential for further use

The engine comes from the secondary market, which allows for optimizing repair costs compared to a brand-new unit. The declared mileage is important information when planning the scope of refurbishment work, such as compression testing, verifying the condition of the cylinder head, or potential replacement of connecting rod bearings. The used 1.8 T AUQ engine is a good base for:

• standard replacement of a damaged unit in daily-driven cars,
• swap projects within the VAG platform,
• refurbishment for long-term use at stock or near-stock power levels.

Thanks to the wide availability of spare parts and technical documentation, preparing this engine for operation is predictable and can be carried out in most specialized workshops.

Selection by OEM/VIN and knowledge about used engines

When purchasing a used engine, it is crucial to match it correctly by engine code and vehicle data to avoid problems with the compatibility of ancillaries, mounts, and control systems. It is worth using procedures for selection by VIN and catalog numbers, which minimizes the risk of error when ordering. A detailed discussion of the advantages of buying units from the secondary market, along with cost analysis and practical examples, can be found in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which helps to consciously plan powertrain repairs.

Expanding work in the area of Audi power units

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 complete power units, short blocks, or other engine configurations, check out the available parts in the Audi Engines category.

Summary

VW Golf Mk4 Audi TT 8N Seat Leon 1.8 T Bare Engine AUQ 180HP 99k miles, WARRANTY is a practical solution for users and workshops that need a proven 1.8 T petrol unit in a four-cylinder configuration. The used engine allows for a significant reduction in repair or modernization costs while maintaining factory performance characteristics and wide compatibility within VAG group models. It is a good choice when technical predictability, parts availability, and the ability to flexibly adapt ancillaries to a specific project are what matter most.