The Mercedes-Benz M271 engine is a straight-4 automobile piston engine family used in the 2000s (decade). All M271 engines are built in Untertürkheim, Germany. The family has a cast aluminium engine block and aluminium DOHC cylinder heads with 4 valves per cylinder and variable valve timing and a coil-on-plug ignition system. KE18ML (271.95X) The KE18ML is a version. Bore and stroke is . Output ranges from at 5200 rpm to at 5800 rpm. It uses sequential fuel injection, is supercharged and intercooled, and features fracture-split forged steel connecting rods. A version running on natural gas was introduced in the German market in 2002. Applications: 2002 Mercedes-Benz CLK-Class (W209) CLK 200 KOMPRESSOR 2002 Mercedes-Benz C-Class (W203) C 180 KOMPRESSOR, C 200 KOMPRESSOR, C 230 KOMPRESSOR 2002 Mercedes-Benz C-Class Sportcoupé CLC 180 KOMPRESSOR, CLC 200 KOMPRESSOR, 2002 Mercedes-Benz E-Class (W211) E 200 KOMPRESSOR 2004 Mercedes-Benz E-Class (W211) E 200 NGT (bi-fuel - gasoline + natural gas) 2004 Mercedes-Benz SLK-Class (R171) SLK 200 KOMPRESSOR 2005 Mercedes-Benz C-Class KOMPRESSOR gasoline 2007 Mercedes-Benz C-Class (W204) C 180 KOMPRESSOR, C 200 KOMPRESSOR 2008 Mercedes-Benz CLC-Class CLC 180 KOMPRESSOR, CLC 200 KOMPRESSOR DE18ML (271.942) This engine had the same dimensions as E18ML and almost the same features, but used CGI (Stratified Charged Gasoline Injection) gasoline direct injection. It has been produced since 2003 in only one version, with an output of at 5300 rpm. The production ceased in 2005. Applications: 2003 Mercedes-Benz C-Class Sportcoupé C 200 CGI 2003 Mercedes-Benz C-Class (W203) C 200 CGI 2003 Mercedes-Benz CLK-Class (W209) CLK 200 CGI KE16ML (271.910) The KE16 is a version introduced in 2008. Bore and stroke is . It shares the same features with the KE18ML version, like supercharger and multi-point fuel injection. Output ranges from at 5000 rpm to at 5200 rpm. Applications: 2008 Mercedes-Benz CLC-Class CLC 160 2008 Mercedes-Benz C-Class (W204) C 180 KOMPRESSOR DE18LA (M271Evo, 271.8XX) This is the last version of M271 engine family. Dimensions are the same as E18ML and DE18ML, but the supercharger has been replaced with a turbocharger; like the DE18ML it uses the CGI (Stratified Charged Gasoline Injection) gasoline direct injection. Output ranges from at 5200 rpm to at 5500 rpm. Applications: 2009-2013 Mercedes-Benz C-Class (W204) C 180 CGI, C 200 CGI, C 250 CGI 2009-2013 Mercedes-Benz E-Class (W212) E 200 CGI, E 250 CGI 2010-2013 Mercedes-Benz E-Class (C207) E200 CGI 2009-2013 Mercedes-Benz E-Class (C207) E250 CGI 2011-2015 Mercedes-Benz SLK-Class (R172)