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AMG Engineering

      AMG 5.5 Liter V8

      • The world's most fuel-efficient V8 engine

        The newly developed AMG 5.5-liter V8 engine featuring cylinder shut-off combines the ultimate in performance with the lowest possible fuel consumption. With a peak output of 310 kW (422 hp) and maximum torque of 540 Nm, this engine exclusively powers the SLK 55 AMG.


        The world's most fuel-efficient V8 engine combines the lowest consumption figures with the superior power delivery and the typical sound experience which only a large-displacement eight-cylinder engine can provide.


        The new M152 is based on the AMG M157 5.5-liter V8 biturbo engine, which powers the E 63 AMG, CLS 63 AMG, S 63 AMG and CL 63 AMG. Numerous design features are identical, such as the displacement, bore/stroke, distance between cylinders, start/stop system and direct petrol injection technology. Distinguishing features versus the M157 include the new intake air ducting, new cylinder heads, the modified valve drive, an adapted oil supply system and an optimized crankcase.

      • Specifications

        Displacement5461 cc
        Compression ratio12.6 : 1
        Output310 kW (421 hp) at 6800 rpm
        Max. Torque540 Nm at 4500 rpm
        Engine weight (dry)187 kg
        Fuel consumption, NEDC combined8.4 l/100 km
        CO2 Emissions195 g/km