Audi RS4 B9 RS5 F5 Bare Engine DECA 2.9 TFSI Quattro 450HP with 69k, 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.).

Audi RS4 B9 RS5 F5 Bare Engine DECA 2.9 TFSI Quattro 450HP with 69k, WARRANTY is a factory-spec, high-performance engine block from the V6 TFSI family, designed for the powerful RS4 B9 and RS5 F5 models. This bare unit serves as a solid foundation for professional rebuilds or engine swaps, allowing you to maintain the original characteristics of the quattro drivetrain and high operational refinement. By preserving the stock architecture of the DECA engine, this solution is particularly attractive for workshops specializing in high-performance vehicles.

Specifications and technical data

• SKU: 06M100031C
• Mark: Audi
• Condition: Used
• OEM Part Number: 06M100031C
• Substitutable numbers: 06M100031C, 06M 100 031 C
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Engine code: DECA
• Mileage: 69 000

Technical characteristics of the DECA 2.9 TFSI engine

The presented engine block belongs to the Engines category and represents a modern V6 construction with direct TFSI gasoline injection. The six-cylinder configuration ensures balanced operation, high flexibility, and an adequate torque reserve, which is crucial for dynamic RS models.

The DECA engine was designed to work with the quattro drivetrain; therefore, its block, cylinder layout, and oil and cooling channels are adapted to the loads typical of high-performance gasoline units. The bare engine block is an ideal starting point for further assembly with accessories consistent with the specific vehicle configuration requirements.

Application in Audi RS4 B9 and RS5 F5

The DECA unit is used in the sports variants of the Audi RS4 B9 and Audi RS5 F5, where it is responsible for dynamic acceleration and stable power delivery across the entire rev range. Using this engine block allows for the preservation of the factory engine performance characteristics, which is particularly important for post-accident repairs, major overhauls, or restoration projects.

The bare engine block allows for the transfer of accessories from the existing unit or the use of new components in accordance with the manufacturer's requirements. This gives the workshop full control over the selection of auxiliary elements while relying on an original engine block intended for a specific RS series.

Benefits of using a pre-owned engine block

Choosing a pre-owned block from the DECA family is a solution that allows you to optimize repair costs while maintaining a high level of compliance with factory specifications. This type of base is particularly valued in projects where the following are important:

• maintaining the original construction of the powertrain,
• the possibility of individual accessory installation,
• adjusting the scope of the overhaul to the customer's budget,
• maintaining proper cooperation with the quattro drivetrain.

As a result, the engine block can be used both in standard rebuilds and in more advanced tuning projects where maintaining a proper mechanical base is key.

Selection and compatibility verification

Before purchasing, it is worth verifying the compatibility of the DECA engine code with the vehicle documentation and the control software used in the specific RS4 or RS5 unit. This helps avoid issues during the first start-up and ensures proper cooperation with the car's electronic systems.

To better understand how the choice of a powertrain affects operating costs and potential failure risks, a guide regarding another popular model may be helpful. In the context of failure analysis and repair budget planning, it is worth reading the article Faulty BMW E90 engines – a practical guide to problematic units, which shows how an informed approach to engine selection affects subsequent service expenses.

Powertrain expansion and additional materials

During a comprehensive powertrain rebuild in high-performance cars such as the RS4 B9 or RS5 F5, it is often necessary to simultaneously verify drivetrain components. When planning work, the guide on clutches and dual-mass flywheels, available in the article Clutch and dual-mass flywheel – diagnostics and selection of parts for the powertrain, where the selection of components for 4x4 drives is discussed, among other things, may be helpful.

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