Mercedes OM615 engine

Technical characteristics of a 2.0 and 2.2-liter diesel engine OM615 or Mercedes OM 615 diesel, reliability, resource, reviews, problems and fuel consumption.

The 2.0 and 2.2-liter diesel engine Mercedes OM 615 was produced from 1968 to 1986 and was installed both on passenger models such as W115 and W123, and on N1300 or MB100 minibuses. This power unit served as the basis for a whole series of diesel engines popular in our market.

R4 includes: OM616 OM601 OM604 OM611 OM640 OM646 OM651 OM668

Specifications of the Mercedes OM615 2.0 and 2.2 diesel engine

Modification: OM 615 D 20

A type	in-line
Number of cylinders	4
Number of valves	8
Exact volume	1988 cm³
Bore	87 mm
Piston stroke	83.6 mm

Supply system	whirlwind camera
Power	55 - 60 HP
Torque	113 Nm
Compression ratio	21.0
fuel type	diesel
Environmental standards	EURO 0

Modification: OM 615 D 22

A type	in-line
Number of cylinders	4
Number of valves	8
Exact volume	2197 cm³
Bore	87 mm
Piston stroke	92.4 mm

Supply system	whirlwind camera
Power	60 hp
Torque	126 Nm
Compression ratio	21.0
fuel type	diesel
Environmental standards	EURO 0

The weight of the OM615 engine according to the catalog is 220 kg

Description of the motor device OM 615 2.0 and 2.2 diesel

In 1958, on the basis of a 1.9-liter M121 gasoline engine, a diesel engine of the same volume was created, which received the OM621 index and compares favorably with the OHV predecessor with an overhead camshaft index of 636. In 1961, its working volume was increased to 2.0 liters. In 1968, as a result of the modernization of such an engine, the OM615 of interest to us appeared. Its design differed only in small things: it is a similar prechamber diesel engine, with a 4-cylinder in-line cast-iron block, an 8-valve cast-iron cylinder head without hydraulic lifters and a two-row timing chain that rotates a single camshaft and in-line injection pump Bosch M.

Engine number OM615 is located at the junction of the block with the head

In addition to the 2.0-liter modification, there is also a 2.2-liter version with a large piston stroke. Also, on the basis of this engine, a 2.4-liter OM616 diesel unit was subsequently created.

Fuel consumption ICE OM 615

On the example of a 220 Mercedes E 1973 D with a manual transmission:

City	9.7 liters
Track	7.1 liters
Mixed	8.5 liters

Which models are equipped with the Mercedes OM615 power unit

Mercedes

E Class W115	1968 – 1976
E Class W123	1976 – 1985
N1300	1976 – 1980
MB100 W631	1980 – 1986
T1-Series W601	1977 – 1985
T2-Series W309	1968 – 1974

Reviews on the OM 615 engine, its pros and cons

Advantages:

• Huge resource up to 800 km
• Has a very wide distribution
• Much of it can be fixed by yourself.
• Donor on the secondary will be inexpensive

Disadvantages:

• Excites with its noise and vibrations
• High pressure fuel pump Bosch M with its own lubrication system
• Always leaking rear crankshaft oil seal
• Hydraulic compensators are not provided

Mercedes OM 615 2.0 and 2.2 diesel engine maintenance schedule

Masloservis

Periodicity	every 10 km
The volume of lubricant in the internal combustion engine	7.4 liters
Needed for replacement	6.5 liters
What kind of oil	10W-40, MB 228.1/229.1

Gas distribution mechanism

Timing drive type	chain
Declared resource	is not limited
On practice	200 000 km
On break/jump	breaks rocker

Thermal clearances of valves

Adjustment	every 20 km
Adjustment principle	locknuts
clearances inlet	0.10 mm
Release clearances	0.30 mm

Replacement of consumables

The oil filter	10 thousand km
Air filter	30 thousand km
Fuel filter	60 thousand km
Glow plugs	100 thousand km
Auxiliary belt	100 thousand km
Cooling liquid	5 years or 90 thousand km

Disadvantages, breakdowns and problems of the OM 615 engine

Rear crankshaft oil seal

This is a very reliable diesel engine and its most famous problem is leaks on the crankshaft rear oil seal, which is made in the form of a packing here. But don't ignore them.

Fuel system

The Bosch M type injection pump has an individual lubrication system that needs to be serviced, there are also ruptures at the rack drive membrane and failure of the booster pump.

Timing chain stretch

Despite the massive appearance, the chain does not last so long compared to the motor resource. Approximately once every 200 - 250 thousand km, it changes along with its calmers and stars.

The manufacturer declared the resource of the OM 615 engine at 240 km, but it serves up to 000 km.

The price of the Mercedes OM615 engine new and used

The minimum cost	20 000 rubles
Average price on the secondary	35 000 rubles
Maximum cost	55 000 rubles
Contract engine abroad	500 euro
Buy such a new unit	—

ICE Mercedes OM615 2.2 liters

55 000 rubles

Condition:	BOO
Box & Papers:	complete engine
Working volume:	2.2 liters
Power:	60 hp

* We do not sell engines, the price is for reference