When fitted with gasoline direct injection from Bosch, the 2.0-litre turbocharged engine for the Audi TT generates 147 kilowatts, and develops its high maximum torque of 280 newton-metres even at engine speeds as low as 1800 revs per minute. In addition to the Audi TT, variations of the engine are also used in the Audi A3, A4 and A6, as well as in the Volkswagen Golf GTI.

Even more torque in future, with yet lower consumption

In general, the interaction of direct injection and turbocharging in turbocharged DI gasoline engines will in the future permit even greater specific torque figures ans even more power. Turbocharging and gasoline direct injection are, moreoever, the technical basis for the 'downsizing designs' that permit further increases in efficiency. In a 'downsized' engine, conventional, naturally aspirated engines are replaced by smaller, turbocharged engines that deliver the same power. With direct injection, a one-third reduction engine displacement allows fuel savings of up to 15 percent, yet the same level of power is generated.

In addition to gasoline direct injection, components supplied by Bosch for the Audi TT include the Motronic engine control units for the zsix-cylinder engine, engine sensors such as speed sensors, pressure sensors and lambda sensors, airbag controllers including upfront and pressure sensors for fast, reliable collision detection, as well as starters and alternators. The switching commands for many electrical consumers, such as wiper blades and lights, are transmitted through the Bosch vehicle network controller. And the Bosch subsidiary Blaupunkt supplies radios and navigation systems for the Audi TT.

Bosch media enquiries:

Chris Wakley/David Eden, Automotive PR, tel: 0207 494 8050, e-mail: cwakely@automotivepr.com/deden@automotivepr.com

Bosch OE enquiries:

Beverley Daniels, Communications Manager, Robert Bosch Ltd,, tel: 01895 878155, e-mail: beverley.daniels@uk.bosch.com