The 2009 Audi A3 is offered in the United States in two engine variants with a 2.0L to 3.2L displacement. Outside the U.S. Audi gives consumers a wider range of choice with the TDI diesel and gasoline engine options. The A3 gets two new engine variants with 90 hp and 105 hp TDI 1.6L engines.
The powerplant that outputs 105 hp is very efficient with fuel mileage recorder at 57.37 mpg or about 4.1L going for 100km. The carbon dioxide per kilometer emission is also excellent at 109g. The impressive figures were made possible with technologies implemented like the energy recovery setup and the start stop system.
The fuel economy of the A3 was improved by 3% due to the energy recovery technology which basically utilizes the kinetic energy of the car’s brakes while slowing down. The energy gathered is used to rid the alternator of its load. The alternator uses the resources of the engine which inevitably consumes fuel in the normal process.







