Mercedes-Benz M103 engine - AbsoluteAstronomy.com

Mercedes-Benz

Mercedes-Benz is a German manufacturer of automobiles, buses, coaches, and trucks. Mercedes-Benz is a division of its parent company, Daimler AG...

M103 was a straight-6

Straight-6

The straight-six engine or inline-six engine is a six-cylinder internal combustion engine with all six cylinders mounted in a straight line along the crankcase...

15 degrees inclination to the right; automobile

Automobile

An automobile, autocar, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor...

engine produced from 1986 through 1993. It was a single overhead cam design with 2 valves per cylinder. The M103 was replaced by the DOHC M104

Mercedes-Benz M104 engine

The Mercedes-Benz M104 was a straight-6 automobile engine produced from 1990 through 1999. It was a double overhead cam design with 4 valves per cylinder. It replaced the M103 and was replaced by the M112 V6 starting in 1997...

starting in 1990.

3.0 L

The 103.980 engine (181 in.³ or 2960 cm³) produces 177 hp or 132 kW at 5700 rpm (with catalyst), 188 hp or 138 kW at 5700 rpm (without catalyst), and has a torque of 188 ft·lbf or 255 N·m at 4400 rpm (with catalyst), 191 ft·lbf or 260 N·m at 4400 rpm (without catalyst). It uses the CIS-E (Continuous Injection System - Electronic) and has a bore of 88.5 mm (3.48 in) and a stroke of 80.2 mm (3.16 in). The compression ratio is 9.2 : 1 with a redline of 6550 rpm in 1987 and 6200 rpm from 1988 on. The firing order is 1-5-3-6-2-4. Lubrication system is pressure circulation lubrication system. Amount of oil in engine is 6.0 litres and amount of coolant is 8.5 litres. Number of valves is 1 intake, 1 exhaust with V-shaped overhead configuration. Valve operation was 1 top camshaft. Camshaft drive was simple roller-type chain. Starter motor is electrical with 1.5 kW; since 01.88 was 1.7 kW. Ignition system is electronic ignition system. Recommended fuel octane for the M103 is 91 RON/MON (96 RON)(86 MON). This engine can be found in the W124

Mercedes-Benz W124

W124 is the Mercedes-Benz internal chassis-designation for the 1985 to 1995 version of the Mercedes-Benz E-Class. The W124 models replaced the W123 models after 1985 and were superseded by the W210 E-Class after 1995.-History:...

E-Class

Mercedes-Benz E-Class

The Mercedes-Benz E-Class is a range of executive-size cars manufactured by Mercedes-Benz in various engine and body configurations. The E initially stood for Einspritzmotor, ; a new feature in volume production vehicles at the time that the E-Class first appeared, with the E as a suffix to the...

, W126

Mercedes-Benz W126

The Mercedes-Benz W126 is a series of flagship vehicles manufactured by German automotive marque Mercedes-Benz. Premiering in September 1979 as the successor to the earlier W116 line, the W126 was the second generation of the Mercedes-Benz flagship to officially bear the S-Class name referring to...

S-Class

Mercedes-Benz S-Class

The Mercedes-Benz S-Class is a series of luxury sedans produced by Mercedes-Benz, a division of Daimler AG. The classification was officially introduced in 1972 with the W116 S-Class, which succeeded previous Mercedes-Benz models dating to the mid-1950s...

Mercedes-Benz R129

The Mercedes-Benz R129 automobiles were produced from 1989 through 2002. They were sold under the SL-Class model names. The R129 replaced the R107 SL-Class in 1989 and was in its turn replaced by the R230 in 2003 .-Models:-Model history:...

, W463 G-Class

Mercedes-Benz G-Class

The original 460-series Geländewagen went on sale for civilian buyers in 1979, after having debuted in February of that year. It was offered with two wheelbases, a short wheelbase of 2,400 mm and a long one of 2,850 mm. One could choose between three body styles: A two-door short...

and the R107.

2.6 L

The smaller 103.940 engine (158 in.³ or 2597 cm³) produces 160 hp or 122 kW at 5800 rpm (with catalyst), 166 hp or 124 kW at 5800 rpm (without catalyst), and generates torque at 162 ft·lbf or 220 N·m at 4600 rpm (with catalyst), 168 ft·lbf or 228 N·m at 4600 rpm (without catalyst). It also used the CIS-E engine management system and had a bore of 82.9 mm (3.26 in) and a stroke of 80.2 mm (3.16 in). The only mechanical differences from the M103 3.0 L to the M103 2.6 L were the decrease in bore, smaller intake valves and a slightly different airbox. The CIS-E components between 2.6 and 3.0 variants are all shared for any given model year with the exception of the ECU making engine swaps from 2.6 to 3.0 virtually bolt-in. The Mercedes Benz 722-series automatic gearbox to which it is usually linked (5-speed manuals were available on some models but are quite rare) is calibrated to take off in second gear to reduce "creeping" and provide a smoother ride. The transmission will select 1st only if the selector is in "2" or in case of abrupt acceleration. Other attributes of this transmission include a 2-3 shift delay when the engine is cold in order to speed up catalyst warm-up. 4th gear is a 1:1 ratio meaning that cruising at about 100 km/h (62 mph)generates engine speeds around 3000rpm. This engine can be found in the W201

Mercedes-Benz W201

The Mercedes-Benz W201 is a compact executive car manufactured by Mercedes-Benz from 1982–1993, positioned below the Mercedes-Benz E-Class and S-Class — and marketed under variants of the Mercedes 190 nameplate....

190

Mercedes-Benz 190

Mercedes-Benz has sold a number of automobiles with the "190" model name:* 1955–1963 W121** 1955–1963 Mercedes-Benz 190SL** 1958–1959 190D** 1959–1961 190b** 1959–1961 190Db* 1962–1965 W110** 1962–1965 190c...

and W124