Mercedes M104 Petrol Engine Manuals

The Mercedes-Benz M104 straight-six engine offers three standard displacements of 2.8 liter (2,799 cc), 3.0 (2,960 cc) liter and 3.2 L (3,199 cc), produced from 1989 to 1999

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Download: M104 2.8, 3.0, 3.2, 3.4, 3.6 Liter Service Manual

Mercedes Benz M104 Engine Repair Manual
Applications: Series 124, 129, 140, 202, 210,
Use as Reference for Series 463
Download: 96.8mb, 1327 pages, Format: .pdf document

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Download: M104 Engine Service Manual

Multi Unit: M104, M119, M120, OM603 Engine Manual
Applications: Series R129, W140
Download: 167 mb, 1935 pages,
Format: Bookmarked .pdf Document

USD $19.95

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M104 Engine Technical Data

The Mercedes-Benz M104 engine is a straight-6 double overhead cam design with 4 valves per cylinder and ignition mapping control ignition system that replaced the M103, and was superseded by the M112 V6 starting in 1997. The M104 continued in production until 1999 where its last use by Mercedes-Benz was in the W140 chassis. Production included the 2.8-liter E28, 3.0-liter E30 and the 3.2-liter E32, along with Mercedes-AMG special versions 3.4L E34 and 3.6L E36).

Versions and Applications

Mercedes M104 Engine Vehicle Application Survey

2.8 L M104.900

Mercedes needed a compact 6 cylinder for their vans and reached an agreement with Volkswagen to use the VR6 Golf/Jetta engine (M106) which were purchased semi complete with only the engine cover and air cleaner housing being made by Mercedes.

2.8 L M104.94x

In 1993, a 2.8 L 170.8 cu in (2,799 cc) with 142 kW (193 PS; 190 hp) at 5500 rpm was used in the W202 C-Class model C280 and in the W140 S-Class model S280.

3.0 L M104.98x

The 3.0 L (2,960 cc) 24v DOHC was introduced as a sports car power plant producing 217 to 228 hp (catalytic converter) and featured KE-Jetronic fuel injection, cylinder specific ignition-timing, variable valve timing with under-piston cooling jets, and where installed in the following models:

W124 300E-24 models
C124 300CE-24 models
S124 300TE-24 models
R129 300SL-24 models

3.2 L M104.99x

The 3.2 L (3,199 cc) version produced 170 kW (231 PS; 228 hp) at 5500 rpm for series W124, R129 SL-Class, W140 S-Class, W210 E-Class, W463 G-Class and Ssangyong Musso, Ssangyong Kyron, Ssangyong Rexton, Roewe W5.

AMG 3.4 L

There were 3.4 L conversions done to the 3.0 L M104.980 by AMG used principally in the 300E AMG 3.4, AMG 3.4 CE and 300TE-3.4 AMG (W124) vehicles with output of 268 hp at 6500 rpm using Bosch KE-Jetronic (CIS-E) injection.

AMG 3.6 L M104.941/M104.992

The 3.6 L (3,606 cc) conversions done to the M104 by Brabus were used in the C36 AMG (W202), M104.941 E36 AMG (W124), M104.992 E36 AMG (W210) and G36 AMG (W463) vehicles producing 276 hp at 5,750 rpm and 284 lb.ft torque at 4,000 rpm using the HFM engine management system. Hand modified outputs could vary from 276 to 287 hp.

AMG 3.6 Liter W124 E36T AMG

3.6 L AMG conversions included turbocharger kits typically raising engine output to between 300 and 800 PS (296 and 789 hp).