The 1.6 CDTI with 100 kW/136 hp and 320 Nm maximum torque, that we introduced you in a previous post, is now available in the high-volume Astra hatchback, Astra notchback and Astra Sports Tourer models. It consumes 3.9 liters diesel per 100 km in the NEDC test procedure (New European Driving Cycle). The 81 kW/110 hp version of the turbo diesel debuting at the Geneva Motor Show from March 6 – 16 is cleaner and more economical. In the NEDC this engine needs 3.7 liters diesel for 100 km and with CO2 emissions of 97 g/km, undercutting the 100 gram mark.
All-new 1.6 CDTI with 3.9 l/100 km and 320 Nm
Named the most reliable German compact car by the trade magazine auto motor und sport (Issue 12/2013), the Opel Astra now offers the completely new 1.6 CDTI with 100 kW/136 hp. The various performance levels of the newest generation all-aluminum turbo unit will successively replace the engines with 1.7-liter displacement, ushering in a new era in Opel’s diesel portfolio.
Opel’s diesel is the first unit in the Astra portfolio to already comply with the Euro 6 emissions standard, making it the cleanest diesel Opel has ever built. The engine is said “best-in-class” in noise and vibration generation thanks to its optimized component design, an especially efficient combustion process with multiple injection and additional acoustic measures. Further contributors to its performance are the high-pressure common rail system and lean NOx trap exhaust after-treatment (LNT). Together with the VTG turbocharger (variable turbine geometry) that enables better response, they are the engine’s core technical elements.
The engine boasts 320 Nm maximum torque – seven percent more than the 130 hp 1.7-liter predecessor. At the same time, fuel efficiency is improved and CO2 emissions are reduced. This output variant makes do with 3.9 liters diesel per 100 km in the NEDC test procedure and emits 104 g/km CO2 – up to eight percent less than the 1.7-liter engine. This comes with the following performances: the turbo unit accelerates the Astra from zero to 100 km/h in 10.3 seconds (notchback: 10.1 seconds); from 80 to 120 km/h in fifth gear it needs 9.2 seconds (notchback: 9.1 seconds, Sports Tourer: 9.9 seconds). Top speed is 200 km/h and the notchback reaches 205 km/h.
The 100 kW/136 hp Astra hatchback 1.6 CDTI is available with Start/Stop and six-speed manual transmission.
97 g/km CO2: Premiere for Astra 1.6 CDTI with 81 kW/110 hp in Geneva
In Geneva, the 81 kW/110 hp version of the newest generation turbo diesel makes its first appearance. Also featuring improved low-end torque, the engine has 300 Nm maximum torque (seven percent more than the 1.7-liter predecessor with the same hp), achieving fuel consumption in the NEDC combined cycle to 3.7 liters diesel per 100 km – and CO2 emissions to below 100 grams: the compact class emits 97 g/km.
With the new generation turbo diesel, the Astra hatchback, notchback and Sports Tourer accelerate from zero to 100 km/h in 12.0 seconds, and top speed is 186 km/h.
Reducing the fuel consumption while switching to Euro6 norm is a big deal. It seems that this engine succeeded doing this using an LNT and some common engine technologies. Do you think that Euro6 norms are really met in any condition using this NOx Trap? Do you think that on a real life driving cycle, the fuel consumption is also reduced compared to the Euro5 equivalent engine?