Available in the UK next summer, the Touareg, Volkswagen’s new luxury off-roader, will feature one of Europe’s most powerful diesel engines, a 10-cylinder V10 TDI with a Bosch Unit Injector diesel direct injection system at its heart.
Offering over 300 bhp and a massive 550 lb-ft of torque, this exceptionally powerful engine is both quiet and fuel efficient, thanks to its twin Bosch ECUs which regulate fuel injection directly into each of the 10 cylinders via individual pump-injectors.
The Bosch Electronic Diesel Control system helps reduce combustion noise through a small pre-injection, while magnetic valve control delivers minutely measured amounts of fuel at pressures of up to 29,000 psi. The result is an extremely fine spray of fuel in the chamber and highly efficient combustion.
The Bosch Unit Injector System was first used in the VW Passat TDI engine in 1998, after which it rapidly found favour with both Volkswagen and Audi. It later featured in the VW Lupo TDI, the first diesel car to produce exhaust emissions that fall below Euro IV limits.
Bosch supplies a number of other safety and comfort features for the Touareg, including airbag control, the wiper system, instrument display panel, navigation and sound systems. With high levels of equipment as standard, Volkswagen expects the Touareg to compete directly with Mercedes M-class and BMW X5.Published 6 December 2002