The Audi A3 / TT 1.8 4 Cylinder Turbo Engine (AUM) is a reliable and performance-driven turbocharged petrol engine from the popular Volkswagen Audi Group 1.8T engine family. Engineered for efficiency, durability, and responsive turbo performance, the AUM engine delivers an excellent balance of power and everyday drivability.
This 1.8L inline 4-cylinder engine features a DOHC 20-valve configuration combined with turbocharging technology, providing smooth acceleration, strong torque delivery, and impressive fuel efficiency. Producing approximately 150 horsepower, the AUM engine became well known for its tuning potential, reliability, and widespread use across Audi and Volkswagen models.
Commonly fitted in the Audi A3, Audi TT, and several VW applications, the AUM engine uses advanced electronic fuel injection and a durable turbo system for consistent performance under daily and spirited driving conditions. Its compact design and strong internal construction make it ideal for engine replacements, rebuild projects, and workshop installations.
The AUM engine remains a popular choice among Audi enthusiasts thanks to its dependable operation, affordable maintenance, and proven long-term reliability. Suitable for both standard replacements and performance upgrades, this turbo petrol engine continues to be one of the most respected 1.8T engines produced by Audi and Volkswagen.
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