Audi A4 B9 A5 F5 Q5 FY Complete Engine 2.0 TDI 35 TDI DTNA 163HP 49k, 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.

Audi A4 B9 A5 F5 Q5 FY Complete Engine 2.0 TDI 35 TDI DTNA 163HP is a complete powertrain from the TDI family, designed for modern mid-size Audi models. The unit with engine code DTNA provides a proven design, optimized for daily operation, low fuel consumption, and stable performance. Thanks to its factory configuration, it is a suitable solution for drivers looking for a technically matched engine for their vehicle.

Specifications and technical data

• SKU: 05L100031H-3
• Mark: Audi
• Condition: Used
• OEM Part Number: 05L100031H
• Substitutable numbers: 05L100031H, 05L 100 031 H
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Engine code: DTNA
• Mileage: 49 000

Purpose and compatibility of the DTNA unit

The presented engine belongs to the Engines category and has been designed for the Audi A4 B9 generation, Audi A5 F5, and Audi Q5 FY models in the 35 TDI version. Using a specific engine code allows for precise matching to the vehicle's factory installation, including the fuel system, control systems, and auxiliary components. As a result, the unit can serve as a base for replacing a damaged powertrain or for professional repair of the drivetrain in cars of this series.

Technical characteristics and design

The DTNA engine is a diesel unit powered by Diesel fuel, which translates into economical operation and good flexibility in typical road conditions. The use of a four-cylinder layout provides a favorable compromise between refinement, powertrain weight, and combustion efficiency. This configuration is widely used in modern Audi designs, which facilitates servicing and access to consumables.

The unit is offered as a complete engine, which in practice means it can be used as the main component for major drivetrain repairs. This solution is particularly beneficial in situations where repairing the existing engine is uneconomical or technically difficult.

Condition, mileage, and practical application

The engine comes from a used vehicle, which allows for a cost-effective restoration of the drivetrain efficiency in Audi A4 B9, A5 F5, and Q5 FY cars. The declared mileage of the unit is important information for workshops and users planning long-term operation – it allows for assessing the potential of the engine's further service life in the context of planned mileage and loads.

In practice, such a powertrain will perform well both in cars used mainly for long-distance travel and in urban traffic, where stable operation, predictable torque characteristics, and the ability to integrate with factory vehicle control systems are essential.

Benefits of installing a complete 2.0 TDI engine

Choosing a complete 2.0 TDI engine with the DTNA code is a solution that allows you to:

• minimize vehicle downtime in the workshop thanks to a ready-to-install powertrain,
• maintain consistency with the factory architecture of the Audi drivetrain,
• obtain predictable operating parameters, consistent with the characteristics of the 35 TDI version,
• facilitate diagnostics and service due to the widespread knowledge of this design among mechanics.

For fleet users and drivers covering high mileage, the stability of the diesel unit and the possibility of further maintenance using standard Audi service procedures are particularly important.

Audi engines – expansion and modernization of the powertrain

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

Technical knowledge and operation of diesel units

When planning to purchase a used engine, it is worth knowing the typical problems of modern diesel units and their impact on the operating budget. A good point of reference can be the analysis of other popular models – for example, the article dedicated to the E90 series discusses critical design areas and the consequences of service neglect: Troublesome BMW E90 engines: check what can ruin your budget!. This type of knowledge helps in making an informed choice and subsequent maintenance of any powertrain.

If you are also interested in the environmental aspect and want to better utilize the potential of recycled parts, it is worth reading a practical discussion on eco-tuning, which describes how to combine performance improvements with reducing your carbon footprint: Eco-tuning in practice: how to increase performance while reducing your carbon footprint with recycled parts.