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NEWS
Uprated efficiency for 220d
New four-cylinder diesel and matching transmissions enhance BMW's 2 Series coupeBMW has a new 2.0-litre diesel in its arsenal – and we've already sampled it.
The company's PR folks are promoting its fitment in an upgraded 220d, but Michael Taylor, our man in Europe, has got behind the wheel of the company's 5 Series with the same powerplant under the bonnet.
His verdict? A qualified thumbs-up...
The new engine is an oversquare design – a shorter strong and wider bore – which is unusual for a diesel. Key properties of the new engine including lower friction, integrated balance shafts, better thermodynamics, a map-controlled oil pump and a more efficient turbocharger with variable intake geometry. Fuel pressure tops out at 2000 bar through solenoid valve injectors.
Power and torque figures for the 220d are 140kW and 400Nm, arriving higher in the rev range than the norm for diesels, thanks to that short-stroke configuration. With power delivery like that, the relatively light 220d promises sparkling performance of the kind rarely encountered in a diesel car. BMW claims a 0-100km/h time of seven seconds.
But the new engine, coupled as it is to a new six-speed manual or the revised eight-speed automatic transmission, makes no concessions for the sake of straight-line performance. CO2 emissions are officially pegged as low as 99g/km, depending on specification. That equates to 3.8L/100km in the New European Drive Cycle, with the automatic transmission. For other variants, including those with manual transmission, fuel consumption ranges up to 4.4L/100km. The automatic 220d is more economical than the manual.
In essence, those figures represent an improvement of 0.4L/100km over the current 220d sold in Australia. The new engine is 2kg lighter and the auto-start/top facility is more sophisticated, advancing operational refinement. Yet, for all that, the new engine also provides 5kW extra power and 20Nm more torque than the current model.
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Written byCarsales Staff
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