Mercedes-Benz M273 engine


The Mercedes-Benz M273 engine is a V8 automobile piston engine family used in the 2000s. It was based on the similar M272 engine|M272] V6 introduced in 2004.
An evolution of the M113 engine|M113] V8, all M273s have aluminium engine blocks, sequential port fuel injection, fracture-split forged steel connecting rods, a one-piece cast crankshaft, and a magnesium intake manifold. The cylinders are lined with silicon/aluminium, and a dual-length variable-length intake manifold is fitted.
In addition to this, new features shared with the M272 include DOHC aluminium cylinder heads, 4 valves per cylinder and independent continuously variable valve timing on both the intake and exhaust sides.
A new electronically controlled cooling system has eliminated the need for a mechanical thermostat for improved engine warm-up and optimum control of engine temperature.

E47

The E47 is a version. Bore and stroke is. Output is at 6000 rpm with of torque at 2700–5000 rpm.
Applications:
The E55 is a version. Bore and stroke increased to. Output is at 6000 rpm with of torque at 2800–4800 rpm.
Applications:
*Note: 500 or 550 model naming varies depending on geographical market.