Mercedes-Benz M271 engine

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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 aluminum engine block and aluminum DOHC cylinder heads with 4 valves per cylinder and variable valve timing.

KE18ML (271.9XX)

The KE18ML is a 1.8 L (1796 cc) version. Bore is 82 mm and stroke is 85 mm. Output ranges from 122 PS (90 kW) at 5200 rpm to 192 PS (141 kW) at 5800rpm.

It uses SFI 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, CLC 230 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
  • 2007 Mercedes-Benz C-Class (W204) C 180 KOMPRESSOR, C 200 KOMPRESSOR
  • 2008 Mercedes-Benz CLC-Class CLC 180 KOMPRESSOR, CLC 200 KOMPRESSOR

DE18ML (271.9XX)

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 170 PS (125 kW) 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 (271.9XX)

The KE16 is a 1.6 L (1597 cc) version introduced in 2008. Bore is 82 mm and stroke is 75.6 mm. It shares the same features with the KE18ML version, like supercharger and multi-point injection. Output ranges from 129 PS (95 kW) at 5000 rpm to 156 PS (115 kW) 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 156 PS (115 kW) at 5200 rpm to 204 PS (150 kW) at 5500 rpm.

Applications:

See also

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