Mercedes-Benz OM656 engine

Mercedes-Benz OM656
Overview
ManufacturerMercedes-Benz
Production2017–present
Layout
ConfigurationStraight-six engine
Displacement2.9 L (2,927.8 cc), 3.0 L (2,989.8 cc)
Cylinder bore82 mm (3.23 in)
Piston stroke92.4 mm (3.64 in)
Cylinder block materialAluminium alloy
Cylinder head materialAluminium alloy
ValvetrainDOHC 4 valves x cyl. with VVT
Compression ratio15.5:1
Combustion
SuperchargerBorgWarner eBooster electrically driven compressor
TurbochargerBorgWarner R2S®[1] Biturbo (only one twin-scroll)
Fuel systemCommon rail direct injection
Fuel typeDiesel
Cooling systemWater cooled
Output
Power output210–270 kW (282–362 hp)
Torque output600–750 N⋅m (443–553 lb⋅ft)
Chronology
Predecessor

The OM656 is a turbocharged diesel engine produced by Mercedes-Benz since 2017. It was first introduced in the facelift W222 S-Class.[1]

  1. ^ Publishing, Last Gear. "Facelifted 2017 Mercedes-Benz S-Class to Debut New 3.0L Straight-Six Engines, 4.0L V8 Biturbo". Drive Mag. Retrieved 2018-07-03.