Special Thanks: ELITE AUTO - / elite.auto
Petrol engines with greater fuel efficiency and lower emissions
The BMW X1 sDrive18i and BMW X1 xDrive23i are powered by petrol engines with three and four cylinders from the BMW Group Efficient Dynamics engine family's new modular generation. The array of innovations that enhance their efficiency and emissions performance, in particular, include the Miller cycle (which shortens the opening time of the intake valves), redesigned intake ports and combustion chambers, and an ignition system featuring an active coil with integrated electronics. Mixture preparation is optimised using a new dual injection system. In addition to the existing high-pressure injection system, some of the fuel is now injected into the combustion chambers via a lowpressure system. At the same time, the effectiveness of the turbocharging system and intercooler has also been increased.
The 2.0-litre four-cylinder unit and 48V mild hybrid technology in the new BMW X1 xDrive23i give it a maximum output of 160 kW/218 hp (developed by the combination of the combustion engine with up to 150 kW/204 hp at 5,000 - 6,500 rpm and the integrated electric motor with up to 14 kW/19 hp) and peak torque of 360 Nm/265 lb-ft (developed by the combination of the combustion engine with up to 320 Nm/236 lb-ft at 1,500 - 4,000 rpm and the integrated electric motor with up to 55 Nm/41 lb-ft). This results in a 0 to 100 km/h (62 mph) acceleration time of 7.1 seconds. This spirited power delivery does not come at the expense of efficiency, with combined fuel consumption of 7.2 - 6.5 litres per 100 kilometres (39.2 - 43.5 mpg imp) and CO2 emissions of 162 - 146 grams per kilometre in the WLTP cycle.
The upgraded three-cylinder engine in the new BMW X1 sDrive18i, meanwhile, extracts maximum output of 100 kW/136 hp and maximum torque of 230 Nm/170 lb-ft from its 1.5-litre capacity. This enables the car to sprint from 0 to 100 km/h (62 mph) in 9.2 seconds. The combined fuel consumption and CO2 emissions figures as measured in the WLTP test cycle come in at 7.0 - 6.3 litres per 100 kilometres (40.4 - 44.9 mpg imp) and 158 - 143 grams per kilometre.
Diesel engines with further improvements to efficiency
The 2.0-litre four-cylinder diesel units fitted in the new BMW X1 xDrive23d and BMW X1 sDrive18d have also undergone an extensive upgrade, and now feature low-friction pistons made from tempered steel, a graphite coating for the piston skirts and an active oil separator with map-regulated electric drive. In an effort to further cut fuel consumption and emissions, improvements have also been made to the efficiency of the two-stage turbocharging and to the common-rail injection and exhaust gas recirculation systems.
Combining these advances with 48V mild hybrid technology allows the new BMW X1 xDrive23d to deliver maximum output of 155 kW/211 hp (developed by the combination of the combustion engine with up to 145 kW/197 hp at 4,000 rpm and the integrated electric motor with up to 14 kW/19 hp) together with peak torque of 400 Nm/295 lb-ft (developed by the combination of the combustion engine with up to 400 Nm/295 lb-ft at 1,500 - 2,750 rpm and the integrated electric motor with up to 55 Nm/41 lb-ft). The sprint from 0 to 100 km/h (62 mph) takes 7.4 seconds. The car's superior efficiency is reflected in combined fuel consumption and CO2 figures of 5.4 - 4.8 litres per 100 kilometres (52.3 - 58.9 mpg imp) and 142 - 125 grams per kilometre in the WLTP cycle.
Thanks to the new version of the 2.0-litre four-cylinder diesel engine developing maximum output of 110 kW/150 hp and peak torque of 360 Nm/265 lb-ft, the BMW X1 sDrive18d reaches 100 km/h (62 mph) from a standstill in 8.9 seconds. At the same time, it posts combined fuel consumption and CO2 emissions of 5.5 - 4.9 litres per 100 kilometres (51.4 - 57.7 mpg imp) and 145 - 129 grams per kilometre, as measured in the WLTP test cycle.