Kompressor (Mercedes-Benz)

Kompressor (stylized as KOMPRESSOR) is a marketing name by Mercedes-Benz used in supercharged engines. The term is not widely used by other motor manufacturers.

The first supercharger was developed in 1921 by a Daimler-Benz team with assistance from Ferdinand Porsche. Mercedes became the first manufacturer to install superchargers on some production models. The designation "K" on Mercedes usually means "Kurz", or short, but can mean "Kompressor".

In 2002 for the 2003 model year, a new family of supercharged four cylinder engines, dubbed M271, debuted for the entire range C-Class range. All of them used the same 1.8-litre engine, with different designations according to horsepower levels, including a version powered by natural gas. The C 230 Kompressor variant sported 142 kW (190 hp). The newer 1.8-litre was less powerful but smoother and more efficient than the older 2.3-litre engine (141 kW (192 PS) compared to 142 kW (193 PS).

Initial engine options comprised the C 180 (139 PS), C220 (143 PS), C 200 Kompressor, and C 230 Kompressor. In 2003, Mercedes-Benz added the C 180 Kompressor, followed by the C 200 CGI in 2003, and finally the C 160 Kompressor in 2005. The C 230 SportCoupé was powered by a 2.3-litre supercharged, four-cylinder motor. It offered 143 kW (192 hp) and 270 N·m (200 lb·ft) of torque. However, the supercharged inline-four engine was considered to be coarse and noisy at the high end.

Powertrain consists of AMG SPEEDSHIFT black series 5-speed automatic transmission mated to an AMG 3.2 liter V6 Kompressor engine with an output of 260 kW/349 hp and 332 lb·ft (450 N·m) @ 4,400 rpm. The engine is a special version of the 3.2 L (3199 cc) M112 E32, fitted with a helical twin-screw supercharger and water-to-air intercooler. The supercharger was developed in conjunction with IHI and features Teflon-coated rotors producing overall boost of 14.5 psi (1 bar). Compared to the standard M112 engine, the AMG version also has a new crankshaft, new con rods and pistons, an oil pump with a 70-percent increased capacity, lightweight camshafts, and stiffer valve springs for a redline of 6200 rpm, an increase of 200 rpm.

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