Audi diesel straight-4 2.0 L CUNA engines

Audi diesel straight-4 2.0 L CUNA 181 HP at 3500 RPM, 380 N⋅m at 1750 RPM engine

It's an 1968 cc (1.73 UK qt.) internal combustion reciprocating Inline 4 engine. It has bore/stroke ratio of 81 mm × 95.5 mm (3.19 in × 3.76 in). This engine was rated 135 kW (181.04 hp) at 3500 rpm and 380 N⋅m (280.27 lbf⋅ft) of torque at 1750 rpm.