Powertrains - Improved Fuel Efficiency, less CO 2 and new Automatic Transmission

Mazda's push to reduce the impact of its vehicles on the environment continues with the Mazda 5 facelift, which features an updated engine line-up that uses less fuel and produce fewer emissions. The MZR 2.0-litre petrol , which produces 107 kW/146PS at 6,500 rpm , has undergone a major update. It now comes with electric throttle for even livelier pedal response, and sequential valve timing (S-VT) which improves cylinder charging efficiency for more torque throughout the rev range. This allowed engineers to make maximum torque of 185 Nm available at a lower engine speed , now at just 4,000 rpm (500 rpm earlier than the outgoing engine).

The updated MZR 2.0-litre petrol can be paired to a new five-speed automatic transmission (see box) or a newly- introduced six-speed manual transmission that enhances even further the lively character of the top-end petrol engine. The six-speed manual's closer gear ratios, along with a newly- introduced electric throttle and S-VT, deliver a responsive and powerful drive with improved elasticity . Mazda 5 facelift with this new powertrain does 0 to 100 km/h in 10.2 seconds, down from 10.8 seconds of the outgoing powertrain (with five- speed manual transmission). Its sixth gear is laid-out to reduce fuel usage when cruising at high speeds. Combined with the new S-VT system that improves fuel economy at low engine speeds and Mazda 5's low drag coefficient (Cd) of just 0.29, and you have a powerful, top of the range petrol version that uses just 7.9 litres per 100 km (combined), which is 0.3 litres or 4 percent less than in the previous 2.0-litre petrol model .

Mazda's updated MZR 2.0-litre petrol also produces fewer emissions . A new oxygen sensor is added to the exhaust system's close coupling catalyst and under-floor catalyst , which helps the engine control module optimise the air-fuel mixture to keep emissions as low as possible. This, combined with the improved fuel-efficiency described above, means the updated MZR 2.0-litre produces 11 g/km less CO 2 than the outgoing engine.

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