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Diesel engine (DD)
The diesel engine 2.0-liter
1. Oil level indicator
2. Fan
3. Tag TDC
4. Crankshaft Pulley
5. The chain drive oil pump
6. Sump
7. The oil pump
8. Crankshaft
9. Flywheel | 10. Piston
11. Cylinder
12. Oil Filter
13. Withdrawal of an inlet pipe
14. Glow
15. Nozzle
16. The hydraulic bucket tappets
17. The double bush roller chain |
The diesel engine 2.0-liter
1. Camshaft
2. The hydraulic bucket tappets
3. The inlet
4. Withdrawal of the exhaust pipe
5. Thermostat (Coolant regulator)
6. Piston
7. Rod
8. The oil pan | 9. The plug to drain engine oil
10. The oil pump
11. Crankshaft
12. The gear of the fuel pump
13. The control circuit
14. The fuel pump
15. Withdrawal of an inlet pipe
16. Cable throttle control (throttle cable) |
The engine capacity of 2.0 liters
80. The camshaft bearing caps
81. The camshaft bearing caps
82. The camshaft bearing caps
84. Hexagon-headed bolt, 25 Nm
84a. Shims
125. Cylinder head cover
185. Camshaft
186. Lock washer
187. Cylindrical pin | 188. The camshaft sprockets
189. shims
190. dodecahedral bolt head 25 Nm + 90 ?°
203. tappet
210. The control circuit
224. The chain tensioner
237. Intermediate O-ring
400. Discharge oil pump |
Mercedes C-Class is equipped with in-line, 4-or 5-cylinder diesel engine. In diesel engines, the cylinder is sucked clean air and subjected it to strong compression. Due to this in-cylinder temperature is increased to the ignition temperature of diesel fuel (600 ?° C). When the piston is near top dead center, fuel is injected into the compressed air and ignites spontaneously, so no need for spark plugs. But in a very cold engine compression can lead to ignition temperature. Therefore, for heating in each swirl chamber is a glow plug of a diesel engine, which is powered by the voltage supplied through the relay preheating. The fuel pump (pump injector) receives fuel from the transfer pump. Diesel fuel is supplied to the fuel pump, which creates the need for its injection of high pressure (100-125 bar). Fuel pump regulator controls the amount of fuel injected in accordance with the actuation of the accelerator pedal. At the right moment the fuel is injected through nozzles into the mixing chamber of the corresponding cylinder. Before the fuel goes into the fuel pump, it passes through the heat exchanger. There are pre-warmed fuel to not greatly concentrated and did not create traffic jams in the fuel lines and filters. The fuel filter traps mechanical impurities and water, and so it is extremely necessary to change the filter in accordance with the instructions for maintenance. Fuel and Fuel pump does not require maintenance. Both pumps are driven by the crankshaft via a control circuit that drives the camshaft as well. The hole in the cylinder head provides lubrication of each of the two pumps with engine oil.
| Engine model | C200 | C220 | C250 | | Manufacturing with | 6/93 | 6/93 | 6/93 | | Type | 202,120 | 202,121 | 202,125 | | Engine | 601.913 | 604,910 | 605,910 | | Displacement, cm3 | 1997 | 2155 | 2497 | Power,
kW / rpm.
hp / rpm. |
55/4600
75/4600
|
70/5000
95/5000
|
83/5000
113/5000
| | Torque Nm / rpm. | 130/2000 | 150/3100 | 170/2800 | | Bore mm | 87.0 | 89.0 | 87.0 | | Stroke, mm | 84.0 | 86.6 | 84.0 | | Compression ratio | 22 | 22 | 22 | | Number of cylinders | 4 | 4 | 5 | | Number of valves per cylinder 1 | 2 | 4 | 4 | | Fuel pump / control | 4 stupas. / ARF | EVE | 5 stupas. / ERE | | Operating procedure of cylinders | 1-3-4-2 | 1-3-4-2 | 1-2-4-5-3 | | Capacities: | | - Engine oil (with filter), L | 6.0 | 6.5 | 7.0 | | - Ohdazhdayuschaya liquid L | 8.0 | 7.0 | 7.5 |
ARF - recirculation of exhaust gases
EVE - injection system with electronically-controlled distributor
ERE - injection system with sequential electronic control
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