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:
- 2007–2012 GL 450 (X164)
- 2007–2013 S 450 (W221)
E55
The E55 is a version. Bore and stroke increased to. Output is at 6000 rpm with of torque at 2800–4800 rpm.Applications:
- 2006–2009 Mercedes-Benz [E-Class (W211)|E 500 / E 550 (W211)]
- 2009–2011 E 500 / E 550 (W212)
- 2006–2010 CL 500 / CL 550 (C216)
- 2006–2010 CLS 500 / CLS 550 (C219)
- 2006–2012 GL 500 / GL 550 (X164)
- 2008–2011 ML 500 / ML 550 (W164)
- 2005–2011 S 500 / S 550 (W221)
- 2006–2012 SL 500 / SL 550 (R230)
- 2006–2009 CLK 500 / CLK 550 (C209)
- 2006–2015 G 500 / G 550 (W463)
- 2007–2014 R 500 / R 550 (W251)
- 2010–present KSU Gazal-1