Mercedes-Benz Engine

M160

The Mercedes-Benz M160 is a SOHC I3 gasoline piston engine.

Years
1999–2006
Configuration
I3
Fuel
Gasoline
Top power
50 PS

Turbocharging a three-cylinder in 1998 was not a fashion — it was the only way out.

A car 2.5 meters long has nowhere to put an engine and no excuse for being slow, which is how the smart city-coupé ended up with this. Sold under the Suprex name, it was an all-aluminum 599 cc inline-three with a single overhead camshaft, two valves per cylinder and a Garrett GT12 turbocharger, weighing 59 kg, lying almost flat beneath the load floor at the back and driving the rear wheels through a six-speed automated manual. Output ran from 45 PS in the base car up to 61 PS, on 9.5:1 compression that the turbo made possible rather than difficult.

The 2003 facelift enlarged both bore and stroke for 698 cc: 50 PS in the fortwo, and 63 or 83 PS in the Roadster that used the same platform stretched. Brabus got 101 PS and 130 N·m out of it, which in a 790 kg two-seater justified the paddle shifters rather better than the badge suggested. Engines and cars were built together at Hambach in Moselle. Production ran to 2007, when the second-generation fortwo moved to a Mitsubishi three-cylinder and Mercedes-Benz left the sub-liter business.

Versions.

Every factory version of the M160.

VersionDisplacementBore × StrokeCompressionPowerTorque
160.910599 cc 63.5 × 63 mm 9.533 kW (44 hp; 45 PS) at 5,250 rpm70 N·m (52 lb·ft) at 3,000 rpm
160.920698 cc 66.5 × 67 mm 9.537 kW (50 hp; 50 PS) at 5,250 rpm80 N·m (59 lb·ft) at 1,800 rpm