Mercedes-benz w124 with mileage: which engine to choose, and whether automatic transmissions survive to this day. Mercedes-benz w124 with mileage: which engine to choose, and whether automatic transmissions survive to this day Engine for Mercedes 124 104 2.8 volume
M104 engine was in two replenishment: a volume of 2.8 and 3.2 is an in-line six. It was installed on the following cars:, W140, W202, W210, W463. This Mercedes engine has established itself as one of the most reliable engines, but like all engines, it has its own design flaws, which we will talk about now.
M104 series engines have good dynamic characteristics:
2.8 (197 HP)
Torque: 270 N/m
Acceleration to 100 km/h: 9 sec
Fuel consumption in the city: 13-14 liters
3.2 (220 HP)
A car with this engine has good dynamics less than 8 seconds to 100 and a torque of 315 N / m.
Acceleration to 100 was written for the car Mercedes W124 for other cars it will be different.
Problems M104
In general, the motors of this series are very reliable and have a good resource, you only need to change the oil and oil filter on time and use only high-quality oil.
The first thing these motors are prone to is overheating, this mainly happens when the fan viscous coupling fails, and it also happens because of the design feature, all inline sixes are prone to overheating.
It can also overheat due to a clogged radiator, so if it is clogged it is better to clean it.
The second disease of the M104 is oil leakage due to the cylinder head gasket, it starts to flow somewhere in the region of 100 thousand km. Due to the use of low-quality oil, the nozzles that supply oil may become clogged; they are provided in the Mercedes M104 in order to avoid overheating of the pistons.
In the event of a clogged nozzle, a piston seizure may occur, a sign of this may be an engine knock, well then it’s too late since you got into a major overhaul, isn’t it easier to change the oil on time than to pay 40-50 thousand rubles for engine repairs, or maybe more .
And so we have already discussed specifications M104 and its main faults, we will now briefly discuss the shortcomings and what you need to pay attention to before buying.
1) Malfunction of the viscous coupling. After the purchase, play it safe and replace the viscous coupling.
2) Clogged radiator. Clean the radiator
3) Unpacking the engine in case of a worn cylinder head gasket. Replace gasket.
4) Before buying, pay attention to the sound of the engine; there should be no knocks and it should not troit; if this happens, then it has serious malfunctions.
Thank you for your time, I hope you learned at least something useful for yourself in the article, wait for other reviews about German cars and about engines.
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Engine Mercedes-Benz M112 E28 2.8 l.
Characteristics of the M112 engine
| Production | Stuttgart-Bad Cannstatt Plant |
| Engine brand | M112 |
| Release years | 1997-2005 |
| Block material | aluminum |
| Supply system | injector |
| Type of | V-shaped |
| Number of cylinders | 6 |
| Valves per cylinder | 3 |
| Piston stroke, mm | 73.5 |
| Cylinder diameter, mm | 89.9 |
| Compression ratio | 10 |
| Engine volume, cc | 2799 |
| Engine power, hp / rpm | 197/5800 204/5700 (see modifications) |
| Torque, Nm/rpm | 265/3000 270/3000 (see modifications) |
| Fuel | 95 |
| Environmental regulations | Euro 4 |
| Engine weight, kg | - |
| Fuel consumption, l/100 km (for E280 W210) - city - track - mixed. |
15.8 7.9 10.8 |
| Oil consumption, g/1000 km | up to 800 |
| Engine oil | 0W-30 0W-40 5W-30 5W-40 5W-50 10W-40 10W-50 15W-40 15W-50 |
| How much oil is in the engine, l | 8.0 |
| When replacing pour, l | ~7.5 |
| Oil change is carried out, km | 7000-10000 |
| Operating temperature of the engine, hail. | ~90 |
| Engine resource, thousand km - according to the plant - on practice |
- 300+ |
| Tuning, HP - potential - no loss of resource |
400+ - |
| The engine was installed | Mercedes-Benz C 280 W202 Mercedes-Benz E 280 W210 Mercedes-Benz S 280 W220 Mercedes-Benz SL 280 R129 |
Reliability, problems and engine repair Mercedes M112 E28 2.8 l.
The medium-volume version in the M112 engine family (which also included M112 E24, M112 E26, M112 E32, M112 E32 ML AMG and M112 E37) appeared in 1997 and was positioned as a replacement for the in-line M104 E28. The new engine was based on the M112 E32 cylinder block, where a crankshaft with a smaller piston stroke was placed (it was 84 mm, it became 73.5 mm).
The cylinder heads are similar to those used on the M112 E32: aluminum, with one camshaft and three valves per cylinder (two for intake, one for exhaust). The diameter of the intake valves is 36 mm, exhaust 41 mm. Everything also uses a variable valve timing system, hydraulic lifters and an intake manifold with adjustable length.Timing chain drive, average chain life is about 200 thousand km. Bosch Motronic ME 2.0 control system.
The engine was intended for Mercedes models with an index of 280.
The last year in the production of 2.8-liter engines was 2005, after which the new M272 KE30 took its place.
Engine modifications M 112 E 28
1. M112.920 (1997 - 2001) - 197 hp version. at 5800 rpm, torque 265 Nm at 3000 rpm. Installed on Mercedes-Benz C 280 W202.
2. M112.921 (1997 - 2002) - 204 hp version at 5700 rpm, torque 270 Nm at 3000 rpm. Installed on Mercedes-Benz E 280 W210.
3. M112.922 (1998 - 2005) - analogue of M 112.921 for Mercedes-Benz S 280 W220.
4. M112.923 (1998 - 2001) - analogue of M 112.921 for Mercedes-Benz SL 280 R129.
Problems and disadvantages of Mercedes M112 2.8 liter engines.
The diseases and problems of M112 E28 are similar to those found throughout the 112th series, which you can learn about.
Tuning engine Mercedes M112 2.8
Chip tuning. Compressor
The M112 E28 engine almost completely repeats the older brother M112 E32, respectively, and their tuning is monotonous. You can learn about the popular and most commonly used methods. When installing a supercharger on a 2.8 liter engine, the engine power will be ~ 40 hp. less than the E32.
The Mercedes M104 E28 engine is the middle one in the M104 engine series. The model was produced not long enough, only 8 years, but many owners are known for the Merc C-class. The motor is quite efficient, and has minor problems.
Characteristics and features of motors
The Mercedes M104 2.8 engine appeared in 1992, like most engines of the 104 series. A new crankshaft was installed in the 3.2-liter cylinder block, with a piston stroke of 73.5 mm, instead of 84 mm on the base engine. The cylinder head is similar to the M104 E32 with a variable valve timing system at the inlet.
Mercedes-Benz E-class with M104 E32 engine.
Fuel injection system - distributed injection. Intake manifold with variable geometry. The timing system uses a reliable two-row chain.
Motor modifications
For a long time in the production of the power unit, a significant number of modifications of motors were produced, which were widely used. Consider what varieties the M104 E28 motor has:
Engine M104 E32.
- M104.941 (1993 - 1997) - 193 hp version at 5500 rpm, torque 270 Nm at 3750 rpm. Installed on Mercedes-Benz C 280 W202.
- M104.942 (1992 - 1997 onwards) - analogue of M 104.941 for Mercedes-Benz E 280 W124.
- M104.943 (1993 - 1998 onwards) - analogue of M 104.941 for Mercedes-Benz SL 280 R129.
- M104.944 (1992 - 1998) - analogue of M 104.941 for Mercedes-Benz 300 SE W140, S 280 W140.
- M104.945 (1995 - 1997) - analogue of M104.941 for Mercedes-Benz E 280 W210.
Service
Maintenance of M104 motors is no different from standard power units of this class. Maintenance of engines is carried out at intervals of 15,000 km. Recommended maintenance should be carried out every 10,000 km.
Typical malfunctions
The problems of the M104 family are the same for all engine sizes. The reason for this is a number of design features that can spoil the mood of any seasoned motorist. Consider the main malfunctions that occur on the power unit:
Maintenance of the motor M104 E32.
- Engine overheating. It is worth diagnosing the condition of the radiator and viscous coupling. Change elements if necessary.
- Engine oil leak. Usually leaks from the heat exchanger gasket. Replacement solves the problem.
- Vibration. As with any other motor, the cause is a pillow that needs to be replaced.
Conclusion
The M104 E28 engine is a fairly reliable and high-quality engine manufactured by Mercedes. As for repairs, it is recommended to contact a service station, but most motorists carry out repair and restoration work on their own.