Audi is pushing to improve its fuel economy and CO2 emissions. Starting this summer (2009), its modular efficiency platform will benefit from additional new technologies: The onboard computer with the efficiency program and the start-stop system will raise the efficiency and convenience of the Audi models, according to the automaker. By 2012, the company projects the fuel consumption of the Audi model range should drop by 20 percent.
The start-stop system is great for city driving by significantly reducing consumption while relieving the driver: The system shuts down the engine once the car has come to a stop, the gear lever stands at idle, and the driver releases the clutch pedal. Operating the clutch then starts up the engine again. The start-stop system is extremely quiet, convenient to operate, and fast: The engine returns to idle speed while the driver is shifting gears.
Audi combines the start-stop system with efficient battery technology and sophisticated energy management to maintain functioning even at low temperatures. The system is inactive during the warm-up phase of the engine, so that the engine oil becomes warmer and the exhaust gas cleaning systems reach their operating temperature faster. The driver can also switch off the start-stop system at any time by pressing a button.
The new system will be introduced in the Audi A3 1.4 TFSI with manual transmission and in the Audi A4 and A5 with two-liter engines and manual gearshift. Other models will follow this year. The source of all of this information comes directly from the Audi website take a look for your selves to see what the Audi Brand has to offer.