Mercedes M115 Petrol Engine Manuals

The Mercedes-Benz M115 Engine was produced in several displacements including: 2.0 L (1,988 cc), 2.2 L (2,200 cc), 2.3 L (2,277 cc) and 2.3 L (2,307 cc), from 1968 to 1985.

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Download M115 4 Cylinder Engine Service Manual

Mercedes 2.3 Liter M115 Engine Manual
Applications: W115, W123
Download: 60.0 mb, 536 pages
Format: .pdf document

USD $19.95

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Download M115 W460 230G Engine Service Manual

Mercedes M115 230G Engine Manual
Applications: W460 - 230 G
Download: 21.4 mb, 236 pages
Format: .pdf document

USD $19.95

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Download M115 (Multi) Engine Service Manual

Mercedes M115 Engine Manual
Applications: W114, W115
Multi Unit Manual: M114, M115, M130, M180
Download: 76.6 mb, 403 pages, .pdf

USD $19.95

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M115 Engine Technical Data

The M115 family was a straight-4 engine produced in several versions with differing volume, compression, and horse power based on application.

In June of 1980, a new 2 liter fuel injected 2.3 liter version of the M115 engine (Type M102) was introduced as its replacement.

Engine Version Codes and Applications

M115.920, M115.921, M115.923, M115.924, M115.926, M115.938, M115.939, M115.951, M115.952, M115.954

2.0 L (1,988 cc)
2.2 L (2,200 cc)
2.3 L (2,277 cc)
2.3 L (2,307 cc)

M115.920 2.2 Liter

The M115.920 is a 2.2 L engine with a power output 103–105 hp (77–78 kW; 104–106 PS)

Applications:

1968-1973 220 (W115.010)

M115.921 2.3 Liter

The M115.921 is a 2.3 L 85 hp (63 kW; 86 PS) engine.

Applications:

L 408 G

M115.923 2.0 Liter

The M115.923 is a 2.0 L (1,988 cc) 70 kW (95 PS; 94 hp) engine.

Applications:

1968-1976 200 (W115.015)

M115.924 2.2 Liter

The M115.924 is a 90–120 hp (67–89 kW; 91–122 PS) engine, depending on compression. The 66 kW (90 PS; 89 hp) is 2200 cc.

Applications:

1968-1973 220 (W115 coupé)

M115.926 Engine

The M115.926 is an 63–70 kW (86–95 PS; 84–94 hp) engine, depending on compression.

Applications:

1968-1977 220

M115.938 2.0 Liter

The M115.938 is a 2.0 L (1,988 cc) engine with a bore and stroke of 87 mm × 83.6 mm (3.43 in × 3.29 in). Power output was 70 kW (95 PS; 94 hp

Applications:

1975-1980 200

M115.939 2.0 Liter

The M115.939 is a 2.0-litre 84 hp (63 kW; 85 PS) engine with reduced compression, which follows from a different head. Was e.g. built for export to Switzerland.

Applications:

1976-1980 200

M115.951 Engine

The M115.951 is a 110 hp (82 kW; 112 PS) engine.

Applications:

1973-1979 230.4 (W115.017)

M115.952 2.3 Liter

The M115.952 is a 2.3 L (2,277 cc) engine with 89 hp (66 kW; 90 PS).

Applications:

409 LF Transporter

M115.954 2.3 Liter

The M115.954 is a 2.3 L (2,307 cc) version with a 93.8 mm (3.69 in) bore and the same 83.6 mm (3.29 in) stroke. Power output was 81 kW (110 PS; 109 hp

Applications:

1976-1981 230, 1976-1981 230C, 1976-1981 230T

Mercedes M115 Motor

M115 Production Specifications

Model	Chassis code	Engine	Disp.	Type	Years	Produced
200	W115.015	M115	2.0 L	inline 4	1968–1973	175242
200	W115.615	M115	2.0 L	inline 4	1973–1976	113543
220	W115.010	M115	2.2 L	inline 4	1968–1973	128398
230.4	W115.017	M115	2.3 L	inline 4	1973–1976	87609

W123 Chassis M115 Engines

The Mercedes 123 Series was fitted with several versions of the M115 engine including the sedan, estate, and coupe models (230, 230T, and 230C, respectively) that delivered 80kW of power at 4,500rpm and 185Nm of torque at 3,000rpm. Post 1981, all three models got the M115 variant and successor (M102 engine).

Chassis	Years	Model	Engine	Power	Torque
W123.?	1977-1978	230	2.0 L M115 I4	93 hp @ 4800	125 lb-ft @ 2500
W123.020	1976–1981	200	2.0 L M115 I4	93 hp @ 4800	117 lb-ft @ 3000
W123.023	1976–1981	230	2.3 L M115 I4	108 hp @ 4800	136 lb-ft @ 3000
W123.043	1977–1980	230C	2.3 L M115 I4	108 hp @ 4800	136 lb-ft @ 3000
W123.083	1978–1980	230T	2.3 L M115 I4	108 hp @ 4800	136 lb-ft @ 3000