Mercedes-AMG has unveiled the full details of its next generation E63 and E63 S performance luxury sedans, which are due to be launched for the 2018 model year. Dubbed as the most intelligent executive sedan as well as the most powerful E-Class so far, the new E63 and the new E63 S are fitted with innovative technologies to offer a whole new level of sportiness and comfort.
At the center of the dynamic claims of the new Mercedes-AMG E63 is the new and very versatile AMG 4.0-liter V8 biturbo engine that employs twin turbocharging. In this setup, the two chargers are located between the cylinder banks in the V of the cylinders. This "hot inner V" setup allows for a more compact engine design. Since air flow for the close-coupled catalytic converters is now optimized, the engine boasts of immediate response from the two twin-scroll turbochargers as well as of low exhaust gas emissions.
This configuration entails a housing divided into two parallel flow passages, which – along with two separate exhaust ducts in the exhaust manifold – allows separate control of the exhaust gases on the turbine wheel. Exhaust gas coming from the first and fourth cylinders is guided through one duct while exhaust gas goes from the second and third cylinders to the other duct – thereby preventing individual cylinders from affecting each other on the exhaust gas cycle. Since this reduces exhaust gas back pressure while enhancing gas exchange, the engine produces more output and makes more torque available at low revs.
While the AMG 4.0-liter V8 biturbo engine also employs new pistons, optimized air intake as well as charge air cooling, it retained other components and functions like four-valve-per-cylinder design with camshaft adjustment, aluminum crankcase, spray-guided direct petrol injection (using piezo injectors) and air-water charge air cooling. It also retained alternator management, gliding mode and ECO start/stop function. The AMG 4.0-liter V8 biturbo engine also boasts of extensive software developments. This V8 biturbo engine is mated to the AMG SpeedShift MCT (Multi Clutch Technology) nine-speed sport gearbox that comes with a wet start-off clutch. Thanks to all these features, the V8 biturbo engine delivers superb power delivery coupled with dynamic acceleration in all engine speeds. In addition, this engine consumes less fuel and emits lower emissions.