Mercedes has unveiled a new family of engines at Mercedes Benz TecDay event. The new engine features both petrol and diesel fuel, ranging from four-cylinder motor to V8 motor. All engines feature 500 cc per cylinder displacement, so do expect displacement ranging from 2.0-4.0 litre.
For more details on the new engines, keep on reading this post to find out.
M256 inline six petrol
A 48V electrical system dispenses of the need for engine belt-driven ancillaries. For instance, the water pump and air-cond compressor are no longer driven by the engine, allowing for belt-free engine block. Powering the said ancillaries is the new 48V electrical system. The upshot? It gives the block a much cleaner, clutter-free appearance and allows the ancillaries to be placed anywhere within the engine bay. Also, this can theoretically improve engine efficiency thanks to the reduction in parasitic losses.
The 48V electrical system also drives the turbochargers, dubbed as electric auxiliary compressor (eZV) to reduce turbo lag. Also, an Integrated Starter Generator (ISG) is sandwiched between the engine and transmission to provide hybrid function, such as electrically-assisted power boost and energy recovery.
Over 408 horsepower and 500 Nm of torque is expected from the M256, along with 15 percent reduction in CO2 emission over the outgoing V6.
A particulate filter (typically featured on diesel) is added, with cordierite the material used in place of silicon carbide on diesel particulate filter to take advantage of its good heat resistant property.
The M256 will make its first appearance in the facelifted W222 S-Class next year.
OM656 inline six diesel
Expected to output 313 horsepower, in contrast to 258 horsepower outputted by the outgoing diesel engine, with 7 percent reduction in fuel consumption.
Utilises stepped-bowl combustion (named after the piston head's bowl shape), Nanoslide technology (coating the cylinder wall with low-friction coating), two-stage turbocharging and CAMTRONIC variable valve timing.
M176 twin turbo V8 petrol
Displacing 4.0 litres, it is expected to output 476 horsepower and 700 Nm of torque.
Utilises closed deck block to increase the block's rigidity, cylinder deactivation to shut down four of its cylinders on light loads up until 3250 rpm made possible my the CAMTRONIC. Just like the M256 inline six petrol engine, the M176 is equipped with a particulate filter.
This engine will debut in the facelifted W222 S-Class.
M264 four cylinder petrol
Just like the M256, the M264 will be equipped with a 48V electrical system. Unlike the M256, a belt-driven starter-alternator (BSA) will draw power from the 48V electrical system instead of the M256 ISG. The BSA hangs off where a conventional alternator sits. Mercedes claims such setup improves the smoothness of the auto start/stop, sharpens acceleration from electric power up to 2500 rpm, energy recovery up to 12.5 kW and cuts off the engine when coasting to reduce fuel consumption and emission.
The engine rams air into all four cylinders via a twin scroll turbo. Exhaust emission is further reduced with the addition of a particulate filter.
The 48V electrical system also drives the turbochargers, dubbed as electric auxiliary compressor (eZV) to reduce turbo lag. Also, an Integrated Starter Generator (ISG) is sandwiched between the engine and transmission to provide hybrid function, such as electrically-assisted power boost and energy recovery.
Over 408 horsepower and 500 Nm of torque is expected from the M256, along with 15 percent reduction in CO2 emission over the outgoing V6.
A particulate filter (typically featured on diesel) is added, with cordierite the material used in place of silicon carbide on diesel particulate filter to take advantage of its good heat resistant property.
The M256 will make its first appearance in the facelifted W222 S-Class next year.
OM656 inline six diesel
Expected to output 313 horsepower, in contrast to 258 horsepower outputted by the outgoing diesel engine, with 7 percent reduction in fuel consumption.
Utilises stepped-bowl combustion (named after the piston head's bowl shape), Nanoslide technology (coating the cylinder wall with low-friction coating), two-stage turbocharging and CAMTRONIC variable valve timing.
M176 twin turbo V8 petrol
Displacing 4.0 litres, it is expected to output 476 horsepower and 700 Nm of torque.
Utilises closed deck block to increase the block's rigidity, cylinder deactivation to shut down four of its cylinders on light loads up until 3250 rpm made possible my the CAMTRONIC. Just like the M256 inline six petrol engine, the M176 is equipped with a particulate filter.
This engine will debut in the facelifted W222 S-Class.
M264 four cylinder petrol
Just like the M256, the M264 will be equipped with a 48V electrical system. Unlike the M256, a belt-driven starter-alternator (BSA) will draw power from the 48V electrical system instead of the M256 ISG. The BSA hangs off where a conventional alternator sits. Mercedes claims such setup improves the smoothness of the auto start/stop, sharpens acceleration from electric power up to 2500 rpm, energy recovery up to 12.5 kW and cuts off the engine when coasting to reduce fuel consumption and emission.
The engine rams air into all four cylinders via a twin scroll turbo. Exhaust emission is further reduced with the addition of a particulate filter.
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