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Mercedes-Benz M116 engine

Field	Value
name	Mercedes-Benz M116 Engine
image	M116.980 engine in 1969 Mercedes-Benz 280 SE 3.5 (US model).jpg
caption	3.5 litre, US-spec M116.980 in a 280 SE 3.5 Coupé
manufacturer	Mercedes-Benz
production	1969–1991
configuration	Naturally aspirated 90° V8
valvetrain	SOHC with 2 valves x cyl.
displacement	{{ubl
{{cvt	3499	cc	L	1	disp	flip}}
{{cvt	3818	cc	L	1	disp	flip}}
{{cvt	3839	cc	L	1	disp	flip}}
{{cvt	4196	cc	L	1	disp	flip}}
block	Cast iron 1969-1978
Aluminum 1978-1991
head	Aluminum
fueltype	Gasoline
fuelsystem	Fuel injection
oilsystem	Wet sump
coolingsystem	Water-cooled
management	Bosch Jetronic
predecessor	Mercedes-Benz M100 engine
successor	Mercedes-Benz M119 engine
power	158-231 PS
torque	266-310 Nm

| 3499 cc | 3818 cc | 3839 cc | 4196 cc Aluminum 1978-1991

The Mercedes-Benz M116 is an automotive V8 engine made in several versions by Mercedes-Benz between 1969 and 1991. All models were gasoline powered and utilized a single overhead camshaft with 2 valves per cylinder and Bosch Jetronic fuel injection. The larger M117 V8 followed, introduced initially in the US market.

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 at 5,800 rpm and 286 Nm at 4,000 rpm. This was enough to propel the 1575 kg saloon to a top speed of 205 km/h. 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: 92x65.8 mm Displacement 3499 cc

Usage

1971-1980 Mercedes-Benz C107
1971-1980 Mercedes-Benz R107
1970-1972 Mercedes-Benz W108
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 at 4,750 rpm and 266 Nm at 2,750 rpm. 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, changing the timing chain to a dual row thus resolved the problem making these engine as durable and reliable as any other Mercedes V8. All 1984 and 1985 3.8 V8 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: 88x78.9 mm Displacement 3818 cc

Usage

1980-1982 Mercedes-Benz C107
1980-1985 Mercedes-Benz R107
1979-1985 Mercedes-Benz W126
1982-1983 Monteverdi Tiara

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 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 at 5,200 rpm and 310 Nm at 3,600 rpm. 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: 92x78.9 mm Displacement 4196 cc

Usage

1986-1989 Mercedes-Benz R107
1986-1991 Mercedes-Benz W126

References

Dual-row timing chain on U.S. 3.8's. https://www.peachparts.com/shopforum/tech-help/162271-dual-row-timing-chain-u-s-3-8s.html

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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