VW Golf Mk4 Audi TT 8N Seat Leon 1.8 T Complete Engine AUQ 180HP 99k, 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.

VW Golf Mk4 Audi TT 8N Seat Leon 1.8 T Complete Engine AUQ 180HP 99k, WARRANTY is a complete powertrain from the VAG group, designed for vehicles equipped with the 1.8 Turbo petrol unit. This is a solution for users looking for a proven, used engine with stable parameters, which allows for the effective repair or replacement of an existing unit. By maintaining factory specifications, the engine ensures predictable performance and proper compatibility with the vehicle's original electronics.

Specifications and technical data

• SKU: 06A100098JX-1
• 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 Engines category and represents the popular, turbocharged petrol unit from the 1.8 T family, marked with the AUQ code. The design, based on four cylinders in an inline configuration, ensures a good balance between performance and smooth operation. The use of turbocharging allows for an output of 180 HP, which in practice translates into dynamic acceleration and flexibility across the entire rev range.

The AUQ engine is widely used in models such as the VW Golf Mk4, Audi TT 8N, or Seat Leon, which facilitates servicing and access to accessories. The petrol unit works well with both manual and automatic transmissions, and its parameters are often chosen by drivers expecting a significantly better throttle response than in naturally aspirated counterparts.

Application and compatibility in VAG group vehicles

The VW Golf Mk4 Audi TT 8N Seat Leon 1.8 T Complete Engine AUQ 180HP 99k, WARRANTY is intended for installation in cars from the VW, Audi, and Seat families that were factory-fitted with the 1.8 T unit with this code. This makes it possible to maintain the original operating characteristics of the drivetrain without the need for structural modifications in the engine bay. This is particularly important for post-accident repairs, overhauls, or replacing a unit after a mechanical failure.

The four-cylinder petrol unit performs well in both daily city driving and highway travel. In many tuning projects, the AUQ serves as a solid base for further modifications, although it already offers a distinctly sporty character in its stock configuration. Users value this design for its predictable behavior, wide availability of service parts, and the possibility of maintenance in specialized workshops familiar with the specifics of the 1.8 T.

Benefits of choosing a used petrol engine

Purchasing a used petrol engine from the 1.8 T family is a solution that allows for significant cost savings compared to a brand-new unit. In the case of the AUQ 180 HP engine, maintaining compatibility with the original accessories and control system is particularly important, as it minimizes the risk of issues with starting and cold or warm operation. A complete used engine enables faster replacement in the workshop, as many components are already assembled and matched.

For informed users, the ability to verify the unit by OEM number and match it to a specific vehicle model is also of key importance. Selecting the right engine based on the code and power version limits the need for adaptation, thereby shortening the vehicle's downtime at the service center. An additional advantage is the fact that the popularity of this unit within the VAG group makes it easy to find specialists familiar with typical service points and installation procedures.

Selection, verification, and technical support

When choosing the VW Golf Mk4 Audi TT 8N Seat Leon 1.8 T Complete Engine AUQ 180HP 99k, WARRANTY, it is worth paying attention to compliance with vehicle documentation and manufacturer markings. Proper matching based on the engine code and reference numbers helps avoid problems with the compatibility of the wiring harness, ECU, and accessories. In case of doubt, a good solution is to consult a mechanic or technical advisor who will confirm the possibility of installation in a specific VW Golf Mk4, Audi TT 8N, or Seat Leon.

For users who want to deepen their knowledge regarding the cost-effectiveness of purchasing used powertrains, procedures for selection by VIN and OEM, and real cost differences, the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths will be helpful. It is a practical source of information that facilitates making an informed purchasing decision and better understanding the specifics of the secondary market.

Expanding repairs in the powertrain area

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

This approach allows you to ensure the consistency of the entire drivetrain in one service stage, reduce the number of disassemblies, and optimize labor costs. Replacing a complete unit along with additional components from the same group often translates into more stable, more predictable vehicle operation in the long term.