Mercedes-Benz M116 engine
Mercedes-Benz M116 Engine | |
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3.5 litre, US-spec M116.980 in a 280 SE 3.5 Coupé | |
Overview | |
Manufacturer | Mercedes-Benz |
Production | 1969–1991 |
Combustion chamber | |
Configuration | 90° V8 engine |
Displacement |
3.5L 3.8L 4.2L |
Cylinder block alloy |
Cast iron 1969-1978 Aluminum 1978-1991 |
Cylinder head alloy | Aluminum |
Valvetrain | SOHC |
Combustion | |
Fuel type | |
Oil system | Wet sump |
Cooling system | Water-cooled |
Chronology | |
Predecessor | Mercedes-Benz M100 engine |
Successor | Mercedes-Benz M119 engine |
The Mercedes-Benz M116 was a series of Gasoline automotive V8 engine made by Mercedes-Benz between 1969 and 1991. All models were a Single overhead camshaft design with 2 valves per cylinder and featured Bosch Jetronic Fuel injection. These engines were introduced as smaller displacement alternatives to the Mercedes-Benz M117 engine, however they shared few common parts.
3.5
The original M116 engine 116.980 was introduced August 1969 in the 300SEL 3.5. It featured 9.5:1 compression with 200 PS (150 kW; 200 hp) @ 5800rpm and 286 N·m (211 lb·ft) @ 4000rpm. This was enough to propel the 1,575 kg (3,472 lb) saloon to a top speed of 200 km/h (124 mph). This engine and its twin, the 116.981 remained in production until 1980 when it was replaced by its larger 3.8 litre variant.
- Bore x Stroke: 92mm x 65.8 mm Displacement 3499cc
Usage
- 1971-1980 Mercedes-Benz C107
- 1971-1980 Mercedes-Benz R107
- 1969-1972 Mercedes-Benz W109
- 1970-1971 Mercedes-Benz W111
- 1973-1980 Mercedes Benz W116
3.8
The 116.960 engine was introduced in 1979 featuring 8.3:1 compression with 158 PS (116 kW; 155 hp) @ 4750rpm and 266 N·m (196 lb·ft) @ 2750rpm. This engine reached North America later for the 1981 380SL. There were 116.961, 116.962, and 116.963 versions of this engine. Early models came with a single row timing chain until 1983 and were plagued with chain failure problems which Mercedes-Benz would repair free of charge. All 1984+ models came with a double row timing chain from the factory to prevent this failure, however this engine was replaced for the 1986 model year by its larger 4.2 litre variant.
- Bore x Stroke: 88mm x 78.9mm Displacement 3818cc
Usage
- 1980-1982 Mercedes-Benz C107
- 1980-1985 Mercedes-Benz R107
- 1979-1985 Mercedes-Benz W126
4.2
The 116.965 engine was introduced in 1986 for the revised S-Class. It featured 9.0:1 compression and had from 204-231 PS (150-170 kW; 201-228 hp) depending on year and export market. All engines were mated to the Mercedes-Benz 4G-Tronic transmission. In North America, this engine was only used in 420SEL models featuring 204 PS (150 kW; 201 hp) @ 5200rpm and 310 N·m (229 lb·ft) @ 3600rpm. This engine was used until 1991 when it was replaced by the newer 4.2L Double overhead camshaft Mercedes-Benz M119 engine with which it shares no parts.
- Bore x Stroke: 92mm x 78.9mm Displacement 4196cc
Usage
- 1986-1989 Mercedes-Benz R107
- 1986-1991 Mercedes-Benz W126
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