mercedes-benz m279

The M279 and M277 are a series of twin-turbocharged V12 engines produced by Mercedes-Benz. It was launched in 2012 with the R231 SL65 AMG.
The M279 is based on the previous generation M275 engine, but has been extensively revised. It now features port injection, larger turbochargers, changes to the valvetrain timing, and a new exhaust system for improved efficiency and emissions. The M279 also uses single overhead camshafts with 3 valves per cylinder, and has an identical bore and stroke compared to before....