Overview: Fiat Multijet II

Fiat’s new 95PS Euro5 Multijet II 1248cc engine has now taken its place in the 500 lineup, replacing the earlier 75PS unit.

Fiat 500 Multijet II.

The new engine, which is fitted with an automatic stop-start system as standard, delivers 200Nm at a modest 1500rpm. A maximum speed of 112mph is claimed, along with a 0-100km/h sprint time of 10.7s. Urban fuel consumption is 5.0l/100km or 56.5mpg, while its overall CO2 yield is 104g/km.

Fiat 1.3 Multijet II 95PS engine, showing long injector assembly next to intake valve.

The Multijet was developed, and is built, by Fiat Powertrain Technologies. It’s shared with General Motors, which uses the unit in Corsa and Astra models. The new version features revised injectors operated by a hydraulic servo valve. Up to eight injection pulses can be delivered in each cycle.

Fiat 500 1.3 Multijet II
Swept volume (cc) 1248
Bore x stroke (mm) 69.6 x 82
Compression ratio 16.8:1
Valves/cyl 4
Power PS/rpm 95/4000
Torque Nm/rpm 200/1500
Fuel D
Emissions EU5 stage 2
Transmission M5
Maximum speed (mph/km/h) 111/178
0-100km/h (s) 10.7s
Urban mpg/l/100km 56.5/5.0
Fuel tank (l) 35
Range (mi/km) 430/690
CO2 (g/km) 104
Length (mm) 3546
Width (mm) 1627
Height (mm) 1488
Wheelbase (mm) 2300
Kerb mass (kg) 980

The new Multijet features a variable geometry turbocharger and a particulate filter. Thanks to the stop-start system, a reduction of up to eight per cent. in urban cycle fuel consumption is claimed.

Vauxhall quotes slightly different torque figures for its version of the Multijet II in the Corsa, probably as a result of differences between the exhaust systems of the two cars. The Corsa’s 190Nm at 1750rpm suggests perhaps that the GM car has a freer-flowing exhaust than the Fiat. With (we suspect) higher gearing than the Fiat, the Corsa manages a combined CO2 figure of 98g/km. Vauxhall claims 12.3s for the Corsa’s 0-100km/h sprint.

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