The OM616 engine family is a

diesel Diesel may refer to: * Diesel engine, an internal combustion engine where ignition is caused by compression * Diesel fuel, a liquid fuel used in diesel engines * Diesel locomotive, a railway locomotive in which the prime mover is a diesel engin ...

automobile

Inline-four engine A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the ...

from

Mercedes-Benz Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...

used in the 1970s and 1980s, and produced by

Force Motors Force Motors Ltd, is an Indian multinational automotive manufacturing company, based in Pune, India and the flagship company of the Dr. Abhay Firodia Group. From 1958 until 2005, the company was known as Bajaj Tempo Motors because it originat ...

in India from the 1980s to the present. This engine was used in various cars, vans and Unimogs over its production lifetime, and still finds use in Force Motors

SUVs A sport utility vehicle (SUV) is a car classification that combines elements of road-going passenger cars with features from off-road vehicles, such as raised ground clearance and four-wheel drive. There is no commonly agreed-upon definitio ...

. The abbreviation ¨OM¨ stands for ¨Oel-Motor¨ (Oil Motor), which refers to the fact that it runs on oil. This method of naming is still used on Mercedes-Benz diesel engines today.

Power update

The OM616 was a engine with power output of . In August 1978 the precombustion chamber was updated for more swirl and more efficient combustion. The new camshaft pushes the valves deeper so the air and exhaust gases have less resistance. The engine capacity was lowered to to satisfy engine displacement tax laws in Europe, but power output rose to . A similar technique power update around these time was also done on the OM615 and

OM617 The OM617 engine family is a straight-5 diesel automobile engine from Mercedes-Benz used in the 1970s and 1980s. It is a direct development from the straight-4 OM616. It was sold in vehicles from 1974 to 1991. The OM617 is considered to be one ...

Applications

* OM616.912 ** 1976-1978 W123 (240D) * OM616.916 ** 1973-1976 W115 (240D) ** 1976-1985 W123 (240D) * OM616.936 ** TN ** G-Class * OM616.937 ** TN

For exchange engine purposes

Later, more powerful versions of the OM616 are interchangeable with early ones. This is done with many older transporter vans and campers like the 207D and 307D models. It is not possible to change only the cylinder head for one with the higher rating, since the higher valve lift of the later versions will interfere with the early pistons. It is possible to change to a more powerful straight-five

but modifications to engine mounts, the hood, and other underhood components (notably the radiator and cooling fan) are necessary.

The OM616 in India

In 1982, Bajaj Tempo, now

, signed a deal with Daimler Benz to manufacture the OM616 Mercedes engine under licence in India for fitting on its line of vehicles. This Mercedes engine gave the company a technological edge over other Indian manufacturers leading to the success of several Bajaj Tempo models. The Mercedes OM 616 or its variants still power the light commercial vehicles of Bajaj Tempo, including the Tempo Traveller, the new Excel series of trucks and the Trax range of multi-utility vehicles. At present, Force Motors is also assembling other Mercedes engines and supplying it to Mercedes Benz India Ltd. The Bajaj Tempo OM616 engine is configured for different power outputs depending on the intended usage, from a version, to the

Turbo In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pr ...

charged version used in the Trax Gurkha (Which is superficially similar to the

Geländewagen The Mercedes-Benz G-Class, sometimes colloquially called the G-Wagen (as an abbreviation of Geländewagen) is a four-wheel drive automobile manufactured by Magna Steyr (formerly Steyr-Daimler-Puch) in Austria and sold by Mercedes-Benz. Original ...

design). Specs of the OM616 used in the Trax SUV: *Model OM - 616(D-98) *Type 4 Cylinder, 4-Stroke, IDI *Bore/Stroke *Displacement *Compression Ratio 21.0:1 *Max. Power output (

ISO ISO is the most common abbreviation for the International Organization for Standardization. ISO or Iso may also refer to: Business and finance * Iso (supermarket), a chain of Danish supermarkets incorporated into the SuperBest chain in 2007 * Iso ...

) at 4000 RPM *Max. Torque @ 1800-2000 RPM *Air filter Oil Bath Type *Oil filter Bye pass flow type paper filter *Fuel filter Dual filter *Oil sump capacity

References

{{DEFAULTSORT:Mercedes-Benz Om616 OM616 Diesel engines by model es:Mercedes-Benz OM 621-OM 615-OM 616 it:Mercedes-Benz OM615#OM616 Straight-four engines

Power update

Applications

For exchange engine purposes

The OM616 in India

See also

References