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Mercedes S-class W2021993-2000 of releaseRepair and car operation |
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Mercedes W202 + 1.2. The general data + 2. Maintenance service - 3. Engines 3.1.2. Identification number + 3.1.3. The engine 3.1.4. Cars with the conditioner 3.1.5. The bottom cover of a motor compartment 3.1.6. Covers of cast apertures 3.1.7. Натяжитель chains + 3.1.8. A cover of a head of the block of cylinders + 3.1.9. A head of the block of cylinders + 3.1.10. Camshafts 3.1.11. Hydraulic тарельчатые pushers 3.1.12. Maslootrazhatelnye caps 3.1.13. Valves 3.1.14. Directing valves 3.1.15. Saddles of valves in a head of the block of cylinders 3.1.16. A compression + 3.1.17. A klinovyj belt 3.1.18. Diagnostics of malfunctions (DB) 3.1.19. Broad-brush observations 3.1.20. Repair work without engine dismantle + 3.1.21. Engine major repairs - 3.2. The diesel engine (ДД) + 3.2.2. The engine 3.2.3. Cars with the conditioner 3.2.4. The bottom cover of a motor compartment 3.2.5. Covers of cast apertures 3.2.6. Натяжитель chains + 3.2.7. A camshaft + 3.2.8. A head of the block of cylinders + 3.2.9. Maslootrazhatelnye caps 3.2.10. A cover of a head of the block of cylinders (2,2/2,5) 3.2.11. Hydraulic тарельчатые pushers 3.2.12. Valves 3.2.13. Directing valves 3.2.14. Saddles of valves in a head of the block of cylinders 3.2.15. A head of the block of cylinders and the motor block 3.2.16. A compression 3.2.17. Клиновой a ridge belt 3.2.18. The pulling device клинового a ridge belt 3.2.19. Diagnostics of malfunctions (ДД) + 4. Greasing system + 5. Cooling system + 6. Heating, ventilation + 7. Ignition system + 8. Fuel system + 9. Transmission + 10. A running gear + 11. A steering + 12. Brake system + 13. A body + 14. An electric equipment + 14.2. Electroschemes |
3.2. The diesel engine (ДД)
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| THE GENERAL DATA |
| 1. The index of level of oil 2. The fan 3. A label of the top dead point 4. A remennyj pulley коленвала 5. A chain of a drive of the oil pump 6. The oil pallet 7. The oil pump 8. Коленвал 9. A flywheel |
10. The piston 11. The cylinder 12. The oil filter 13. Tap of an inlet pipe 14. A candle накаливания 15. An atomizer 16. Hydraulic тарельчатый a pusher 17. A double vtulochno-roller chain |
| 1. A cam-shaft 2. Hydraulic тарельчатый a pusher 3. The inlet channel 4. Exhaust pipe tap 5. The thermostat (a regulator of a cooling liquid) 6. The piston 7. A rod 8. The oil pallet |
9. A stopper for engine oil plum 10. The oil pump 11. Коленвал 12. A gear wheel of the fuel pump 13. An operating chain 14. The fuel pump 15. Tap of an inlet pipe 16. A cable of management throttle заслонкой (a gas cable) |
| 80. A cover of the bearing of a cam-shaft 81. A cover of the bearing of a cam-shaft 82. A cover of the bearing of a cam-shaft 84. Bolts with шестигранной a head, 25 Н.м. 84а. Prokladochnye washers 125. A cover of a head of the block of cylinders 185. A cam-shaft 186. A lock washer 187. A cylindrical pin |
188. A cam-shaft gear wheel 189. A prokladochnaja washer 190. A bolt with двенадцатигранной a head, 25 Н.м. + 90 ° 203. A valve pusher 210. A management chain 224. Натяжитель chains 237. Прокладочное a sealing ring 400. The delivery oil pump |
In diesel engines in the cylinder pure air is sucked in and is exposed there to strong compression. Thanks to it the temperature in cylinders raises to temperature of ignition of diesel fuel (nearby 600 °). When the piston is near to the top dead point, fuel is injected into compressed air and самовоспламеняется, therefore there is no necessity for spark plugs. But in very cold engine compression cannot lead to ignition temperature. Therefore for heating in each vortical chamber of a diesel engine there is a candle накаливания which eats from the pressure submitted through the relay of a preliminary warming up.
The fuel pump (the pump of atomizers) receives fuel from топливоподкачивающего the pump. Diesel fuel moves in the fuel pump where the high pressure necessary for its injection (100–125 bar) is created. The regulator of the fuel pump operates quantity of injected fuel according to actuating of a pedal of an accelerator. In the fullness of time fuel is injected through atomizers into the prechamber of the corresponding cylinder. Before fuel will arrive in the fuel pump, it passes through the heat exchanger. There fuel preliminary gets warm, that strongly was not condensed and did not create a stopper in топливопроводах and the filter. The fuel filter detains mechanical impurity and water and consequently it is extremely necessary to change the filter according to the maintenance manual.
Fuel and топливоподкачивающий pumps do not require maintenance service. Both pumps are put in action from a cranked shaft through a chain of management which puts in action as well a cam-shaft. The aperture in a head of the block of cylinders provides greasing of each of two pumps with engine oil.
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Engine model
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С200
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С220
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С250
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| Time of release with |
6/93
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6/93
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6/93
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| Type |
202.120
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202.121
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202.125
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| The engine |
601.913
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604.910
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605.910
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| Working volume, sm3 |
1997
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2155
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2497
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| Capacity, Kw at rpm. H.p. at rpm. |
55/4600 75/4600 |
70/5000 95/5000 |
83/5000 113/5000 |
| Twisting moment, Н.м. At rpm. |
130/2000
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150/3100
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170/2800
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| Diameter of the cylinder, mm |
87,0
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89,0
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87,0
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| Piston stroke, mm |
84,0
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86,6
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84,0
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| Compression degree |
22
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22
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22
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| Number of cylinders |
4
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4
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5
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| Quantity of valves on 1 cylinder |
2
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4
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4
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| The fuel pump / management |
4-mortars. / ARF
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EVE
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5-mortars. / ERE
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| Operating procedure of cylinders |
1–3–4–2
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1–3–4–2
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1–2–4–5–3
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| Refuelling capacities: | |||
| – Engine oil (with the filter), l |
6,0
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6,5
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7,0
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| – охдаждающая a liquid, l |
8,0
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7,0
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7,5
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