Porsche Macan S 95B Audi A8 D4 Q5 8R Quattro Bare Engine CTBA 258HP 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.).

Porsche Macan S 95B Audi A8 D4 Q5 8R Quattro Bare Engine CTBA 258HP WARRANTY is a used, factory-spec V6 TDI engine block designed for advanced quattro drivetrain systems. This is an ideal solution for users looking for an original base for a professional engine repair while maintaining factory performance characteristics. The bare engine allows for the precise transfer of accessories from your existing engine, which is both cost-effective and technically advantageous.

Specifications and technical data

• SKU: 059100099Q
• Mark: Audi
• Condition: Used
• OEM Part Number: 059100099Q
• Substitutable numbers: 059100099Q, 059 100 099 Q, 059100099QX, 059 100 099 QX, 95810093405, 958 100 934 05, 958100934EX, 958 100 934 EX
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Engine code: CTBA
• Mileage: 99 000

Technical characteristics of the CTBA engine block

The presented engine block belongs to the Engines category and represents a high-performance V6 TDI diesel unit with 258 HP, identified by the code CTBA. The six-cylinder design ensures smooth operation, high torque, and stable performance under loads typical for quattro drivetrains and heavier premium-class bodies.

The "bare engine" designation means it serves as a solid base block for further assembly with accessories – perfect for workshops specializing in engine regeneration and for users who want to transfer proven auxiliary components from their current engine. This configuration facilitates quality control of the installed parts and allows for budget optimization of the repair.

Application in Porsche and Audi models

The CTBA unit is used in high-end vehicles such as the Porsche Macan S 95B and selected Audi models, including the A8 D4 and Q5 8R with quattro drive. As a result, this engine block is well-suited for cars where dynamic acceleration, highway flexibility, and stable operation under long-term loads are essential. It is a solution dedicated to vehicles that combine driving comfort with demanding usage, such as long-distance travel or towing.

The V6 diesel engine in this configuration is valued for its favorable fuel consumption while maintaining high power, which translates into efficiency in daily driving and on long distances. For workshops, this means a predictable assembly process and easier integration with the vehicle's existing electronics, while maintaining factory operating parameters.

Benefits of choosing a used engine block

Choosing a used CTBA engine block is a solution that significantly reduces repair costs compared to purchasing a complete, new unit. At the same time, you retain the original manufacturer's specification, which is crucial for proper interaction with the drivetrain, transmission, and safety systems. The bare engine provides the opportunity to carefully transfer accessories that are already matched to your specific vehicle.

The V6 diesel engine from this series is designed for high mileage and operation in demanding conditions, which is why a properly selected used block can be a rational investment for years of future use. This is particularly important for premium-class cars, where maintaining the original engine unit impacts the vehicle's value and comfort of use.

Selection by engine code and OEM numbers

When selecting a CTBA engine block, it is crucial to match it by engine code and OEM/reference numbers to ensure full compatibility with the electronics, accessories, and body mounts. It is worth paying attention to compatibility with the specific version of the Porsche Macan S, Audi A8 D4, or Audi Q5 8R quattro, as structural differences may exist even within the same generation.

To better understand how to safely choose used engine units and what to look for when verifying numbers, VIN-based selection procedures, and total repair costs, check out our expert guide: Why it is worth buying used transmissions and engines – facts instead of myths. This is a practical addition to your knowledge before making a purchasing decision.

Audi engines – expansion and modernization of the drivetrain

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 blocks, cylinder heads, or engine blocks for different versions, check out the available parts in the Audi Engines category.

This allows you to plan the full scope of work – from replacing the engine block to selecting compatible components and potential drivetrain modifications. Consistent use of parts from the same product group facilitates assembly and reduces the risk of compatibility issues in the future.