Audi 1.8L 125 kW 5-Valve Turbo – ULEV Turbo Gasoline Engine
Audi 1.8L 125 kW 5-Valve Turbo – ULEV Turbo Gasoline Engine
Part of content: The ability of a vehicle to meet the most stringent emission standards is becoming an increasingly important aspect of its market appeal. The 1.8l, 5-valve turbo engine which Audi launched in 1994 represented an emissions concept which, thanks to its innovative close-coupled catalytic converter, provided an ideal basis for further development to an engine meeting the US ULEV emission standard, as the current engine does.
Its configuration as a ULEV concept necessitated the blanket optimization of all components which influence the exhaust emissions. The pistons and injectors were improved in order to reduce untreated emissions. The main potential was tapped by incorporating intake camshaft adjustment and a cascade catalytic converter for emissions after treatment.
