Description
The Audi 1.8 TFSI CDA/CDN/CDH engine is a highly efficient and modern turbocharged petrol powerplant, designed to deliver strong everyday performance with excellent fuel economy and low emissions. As a later evolution of Audi’s EA888 engine platform, this 1.8-liter four-cylinder engine offers a refined driving experience and was engineered for a balance of power and economy. Used widely across Audi’s vehicle range, the CDA, CDN, and CDH variants are known for their reliability, smooth operation, and advanced technology.
Key Features
1.8L Turbocharged Inline-Four Petrol Engine – The engine offers a compact 1.8-liter displacement with turbocharging, providing strong low-end torque and consistent power for both urban and highway driving.
DOHC with Direct Injection and Variable Valve Timing – Equipped with dual overhead cams, direct fuel injection, and Audi’s valve control systems, this engine delivers precise combustion, lower fuel consumption, and reduced emissions.
Lightweight Aluminium Block and Head – The use of aluminium construction reduces engine weight, aiding fuel efficiency and enhancing handling through better weight distribution.
Integrated Exhaust Manifold – Designed into the cylinder head, this feature improves engine warm-up times, reduces emissions, and contributes to thermal efficiency.
EA888 Gen 2/Gen 3 Architecture – The CDA, CDN, and CDH codes fall within the second and third generations of Audi’s EA888 engine family, incorporating engineering improvements for performance, reliability, and serviceability.
Performance & Applications
The Audi 1.8 TFSI CDA/CDN/CDH engine is featured in several models across the Audi lineup, providing a strong balance of power and economy in both compact and mid-size vehicles. It is well-suited for daily commuting, long-distance travel, and spirited driving.
Audi A3 8P/8V (2009–2015) – The engine powers multiple variants of the A3, delivering smooth performance and great fuel economy in both hatchback and sedan formats.
Audi A4 B8 (2008–2015) – Commonly fitted to the B8 generation A4, this engine ensures a quiet and efficient drive, ideal for daily use and longer journeys.
Audi A5 (2008–2016) – In select coupe and sportback models, the 1.8 TFSI provides a dynamic yet economical option for those seeking style without high fuel costs.
Audi TT 8J (2010–2014) – Found in base trims of the second-generation TT, this engine gives the car a sporty feel with efficient fuel use and low emissions.
Audi A6 C7 (2011–2014) – In entry-level versions of the A6, this engine offers balanced performance, making it ideal for executive driving with low running costs.
Why Choose the Audi 1.8 TFSI CDA/CDN/CDH Engine?
🔹 Excellent Fuel Economy – Direct injection and turbocharging deliver strong performance while keeping fuel consumption impressively low.
🔹 Smooth and Quiet Operation – Thanks to its balanced design and variable valve timing, the engine provides refined, quiet operation at all speeds.
🔹 Lightweight and Efficient – With aluminium components and integrated design features, this engine prioritizes efficiency without sacrificing performance.
🔹 Advanced Engineering – As part of the EA888 family, it benefits from years of development and technological improvements for durability and emissions.
🔹 Broad Model Range – Used across Audi’s most popular models, this engine enjoys widespread support for servicing, parts, and long-term maintenance.
Conclusion
The Audi 1.8 TFSI CDA/CDN/CDH engine stands out as a refined and efficient choice within the brand’s turbocharged lineup. Built with advanced fuel-saving and performance-enhancing features, it powers a wide variety of Audi vehicles including the A3, A4, A5, TT, and A6. With a strong focus on economy, quiet performance, and low maintenance costs, the CDA, CDN, and CDH engine codes continue to represent a smart and reliable option for drivers seeking modern power with long-term dependability.
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