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Background on the 2.0L diesel engines at the core of the Volkswagen emissions testing debacle

Green Car Congress

Volkswagen engineers redesigned a large number of the base engine components to improve acoustics, fuel consumption, and exhaust gas emissions. This is referred to as the Gen 1 aftertreatment design in the EPA/ARB documents.). It is then converted to ammonia which interacts with NO x on the SCR catalyst to form water and nitrogen.

Diesel 150
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First drive: US spec Audi A3 Sportback e-tron plug-in hybrid; 83-86 MPGe with 16-17 mile EV range

Green Car Congress

TFSI which develops 110 kW (150 hp) and 250 N·m (184 lb-ft) of torque; a six-speed S tronic transmission integrated with a 75 kW, 330 N·m (243 lb-ft) liquid-cooled, permanent magnet-driven electric motor; and an 8.8-kWh Its heart is the exhaust manifold integrated into the cylinder head. seconds—comparable to the 7.4

Audi 150
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Volkswagen’s 1.0L eco up! natural gas vehicle offers 79g CO2/km

Green Car Congress

The engine’s dual-circuit cooling system and integrated water-cooled exhaust manifold enable short engine warm-up times. From a coolant temperature of -10 °C (+14 °F) upwards, the eco up! TSI EcoFuel (each 110 kW / 150 PS); and the eco up! The valves are activated by cam followers with very low friction.

Gas 291