The only other brand that today has something similar in their gasoline engines. This is BMW (and Mini) and fully open system Valvetronic variable intake valves, in this case driven by the camshaft and without butterfly, which works with the same engine lubricating oil, ie, reliability maximum and applied to atmospheric and turbocharged engines with direct injection. Multiair system logo at the top nice engine, the only place where it appears.

According to Fiat, compared with a conventional gasoline engine of equal size, offers more power (up to 12%) and torque (up to 15%), while consumption is lower (up to 16%), with lower CO2 emissions (up to 16%), and fewer particles (up to 40%). It even allows internal recirculation of exhaust gases through the reopening of the intake valves during the exhaust, causing a reduction in emissions of 40% of HC / CO and 60% of NOx.

All an invention, with a high development potential ahead by ensuring the reliability (Fiat patent is put into production but is Bosch) and also apply to diesel engines. The difference is remarkable about the old 1.4 turbo 120 hp with conventional admission, which approved 6.6 l/100 km and 155 g / km respectively, although some of this reduction is attributable to the start & stop system.

Multiair system (press file)

The operating principle of the system applied to the intake valves is as follows: a piston driven by a mechanical cam (1), is connected to the inlet valve by a hydraulic chamber controlled by a solenoid valve, the ON / OFF, normally open.

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A delight especially taking into account that the road test has been developed with rain and snow. And in sharp support retention is also very fast and very easy to control because only shows a slight tendency to under steer. The braking has the genes of BMW and is very stable, type BMW, not lie on curve or sink the nose on the straight, but you can make two criticisms: the great transformation and the parasite in the wheel when the ABS operates and the high noise pills to stop, really annoying in city traffic to a halt.

Also accompanied the new version of the 1.6 turbo engine with power increased from 175 to 184 hp (same as the new 2.0d BMW four-cylinder), superb performance and refinement of mechanical and example of technology developed by BMW for their Electronics engine such as the control variable valve lift, the turbo and direct injection, plus the strategy of reducing consumption Minimalism.

Automatic switching cams on the steering wheel help you enjoy the sound of the exhaust successful Mini Cooper S All4 Countryman. The voice recognition system is not as advanced as the BMW.

The previous 1.6-liter turbocharged versions of the Mini Cooper S performance obtained official and approved consumption of 95 octane gasoline. The current, which equips the Cooper S All4 Countryman, needs 98 octane on the basis of the information in the instruction manual.

If we add that has stability control DSC mode that partially inhibited or switched off completely, it turns out that we will choose efficiency and extreme ease of driving cross country or play streaming into slippery ground such as snow or wet grass , as was the case. Do not disappoint this Mini Cooper S Countryman All4.

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