The 1686cc 16v 80 horsepower four-cylinder ECOTEC turbo diesel produces a maximum torque of 170Nm and a top speed of 107mph in saloon and hatchback models.
Combined cycle fuel consumption is 61.4mpg. The added aerodynamic drag and roll resistance features in the highly-successful Astra ECO increase fuel efficiency to 64.2mpg – and raise top speed to 111mph.
The achievement of the Euro 4 emission standard gives the models favourable tax treatment. The Astra 1.7 CDTi meets the standard, mandatory in all new car types from 2005, without the need for expensive and complex additional emission gas treatment.
CO2 emissions of 124g/km are reduced in the ECO version to just 118g/km.
Second generation common rail direct injection from Bosch is a technical highlight, increasing the injection system pressure to 1,600 bar, and improving control of the injection process.
The Astra 1.7 CDTi joins the all-new 3.0 litre V6 CDTi in Signum to be launched on 2 June, as spearheads in Vauxhall's comprehensive diesel offensive.
The new engine is available in Astra Envoy, LS, Club, SXi and Elegance models at on-the-road prices ranging from £13,275 to £14,775. The ECO version is available only in LS trim at £13,775.
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