Mercedes M104 engine
Content
The family of in-line 6-cylinder Mercedes M104 engines was produced from 1989 to 1998 in three versions: E28 with a volume of 2.8 liters, E30 with a volume of 3.0 liters and E32 with a volume of 3.2 liters. There were also especially powerful AMG versions with the E34 and E36 indices for 3.4 and 3.6 liters, respectively.
The R6 line also includes internal combustion engines: M103 and M256.
Technical characteristics of motors of the Mercedes M104 series
| Exact volume | 2799 cm³ |
| Supply system | injector |
| Internal combustion engine power | 193 - 197 HP |
| Torque | 265 - 270 Nm |
| Cylinder block | cast iron R6 |
| Block head | aluminum 24v |
| Bore | 89.9 mm |
| Piston stroke | 73.5 mm |
| Compression ratio | 9.2 – 10 |
| Features of the internal combustion engine | no |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | at the inlet |
| Turbocharging | no |
| What kind of oil to pour | 7.0 liters 5W-40 |
| fuel type | AI-92 |
| Environmental class | EURO 1/2 |
| Approximate resource | 500 000 km |
| Exact volume | 2960 cm³ |
| Supply system | injector |
| Internal combustion engine power | 220 - 230 HP |
| Torque | 265 - 270 Nm |
| Cylinder block | cast iron R6 |
| Block head | aluminum 24v |
| Bore | 88.5 mm |
| Piston stroke | 80.2 mm |
| Compression ratio | 10 |
| Features of the internal combustion engine | no |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | at the inlet |
| Turbocharging | no |
| What kind of oil to pour | 7.0 liters 5W-40 |
| fuel type | AI-92 |
| Environmental class | EURO 1/2 |
| Approximate resource | 500 000 km |
| Exact volume | 3199 cm³ |
| Supply system | injector |
| Internal combustion engine power | 220 - 230 HP |
| Torque | 310 - 315 Nm |
| Cylinder block | cast iron R6 |
| Block head | aluminum 24v |
| Bore | 89.9 mm |
| Piston stroke | 84 mm |
| Compression ratio | 9.2 – 10 |
| Features of the internal combustion engine | no |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | at the inlet |
| Turbocharging | no |
| What kind of oil to pour | 7.0 liters 5W-40 |
| fuel type | AI-92 |
| Environmental class | EURO 1/2 |
| Approximate resource | 500 000 km |
The weight of the M104 engine in the catalog is 195 kg
The M104 engine number is located on the cylinder block
Fuel consumption internal combustion engine Mercedes M 104
On the example of a 320 Mercedes E1994 with a manual transmission:
| City | 14.7 liters |
| Track | 8.2 liters |
| Mixed | 11.0 liters |
Similar motors from other manufacturers:
Which cars were equipped with the M104 2.8 - 3.2 l engine
| C-Class W202 | 1993 – 1998 |
| E Class W124 | 1990 – 1997 |
| E Class W210 | 1995 – 1998 |
| G-Class W463 | 1993 – 1997 |
| S-Class W140 | 1991 – 1998 |
| SL-Class R129 | 1989 – 1998 |
| Chairman 1 (H) | 1997 – 2014 |
| Chairman 2 (W) | 2008 – 2017 |
| Korando 2 (KJ) | 1996 – 2006 |
| Musso 1 (FJ) | 1993 – 2005 |
| Rexton 1 (RJ) | 2001 – 2017 |
Disadvantages, breakdowns and problems of the M104
The main problem of the power units of this series is the numerous oil leaks.
First of all, gaskets flow: U-shaped, cylinder head and oil filter heat exchanger
The viscous coupling of the fan often fails, which is very dangerous for the engine
This motor is very afraid of overheating, almost immediately drives the cylinder head
You will get a lot of trouble under the hood wiring, as well as ignition coils
