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Mercedes of the S-class W2021993-2000 of releaseRepair and operation of the car |
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Mercedes W202 + 1.2. General information + 2. Maintenance - 3. Engines 3.1.2. Identification number + 3.1.3. Engine 3.1.4. Cars with the conditioner 3.1.5. Lower cover of a motor compartment 3.1.6. Covers of cast openings 3.1.7. Natyazhitel of a chain + 3.1.8. Cover of a head of the block of cylinders + 3.1.9. Head of the block of cylinders + 3.1.10. Camshafts 3.1.11. Hydraulic dish-shaped pushers 3.1.12. Maslootrazhatelny caps 3.1.13. Valves 3.1.14. The directing valves 3.1.15. Saddles of valves in a head of the block of cylinders 3.1.16. Compression + 3.1.17. Maple belt 3.1.18. Diagnostics of malfunctions (DB) 3.1.19. General comments 3.1.20. Repair work without dismantle of the engine + 3.1.21. Capital repairs of the engine - 3.2. Diesel Engine (DE) + 3.2.2. Engine 3.2.3. Cars with the conditioner 3.2.4. Lower cover of a motor compartment 3.2.5. Covers of cast openings 3.2.6. Natyazhitel of a chain + 3.2.7. Camshaft + 3.2.8. Head of the block of cylinders + 3.2.9. Maslootrazhatelny caps 3.2.10. Cover of a head of the block of cylinders (2,2 / 2,5 l) 3.2.11. Hydraulic dish-shaped pushers 3.2.12. Valves 3.2.13. The directing valves 3.2.14. Saddles of valves in a head of the block of cylinders 3.2.15. Head of the block of cylinders and motor block 3.2.16. Compression 3.2.17. Maple ridge belt 3.2.18. The pulling device of a maple ridge belt 3.2.19. Diagnostics of malfunctions (DD) + 4. Lubrication system + 5. Cooling system + 6. Heating, ventilation + 7. System of ignition + 8. Fuel system + 9. Transmission + 10. Running gear + 11. Steering + 12. Brake system + 13. Body + 14. Electric equipment + 14.2. Electrical circuitries |
3.2. Diesel Engine (DE)3.2.1. Introduction
Diesel engine with a working volume of 2,0 l
Diesel engine with a working volume of 2,0 l
2,0 l engine
Mercedes C-class is equipped line, 4-or 5-cylinder diesel engines. In diesel engines in the cylinder clean air is sucked in and is exposed to strong compression there. Thanks to it temperature in cylinders increases up to the temperature of ignition of diesel fuel (about 600 °C). When the piston is near the top dead point, fuel is injected into compressed air and self-ignites therefore there is no need for spark plugs. But in very cold engine compression cannot lead to ignition temperature. Therefore for heating in each vortex camera of the diesel there is a glow plug which eats from tension given via the relay of a preliminary warming up. The fuel pump (the pump of nozzles) receives fuel from the toplivopodkachivayushchy pump. Diesel fuel moves in the fuel pump where the high pressure, necessary for its injection (100–125 bars) is created. The regulator of the fuel pump operates amount of injectable fuel according to actuating of a pedal of an accelerator. At the right time fuel is injected through nozzles into the precamera of the corresponding cylinder. Before fuel comes to the fuel pump, it passes through the heat exchanger. There fuel gets warm previously that strongly it was not condensed and did not create a stopper in fuel-supply lines and the filter. The fuel filter detains mechanical impurity and water and therefore it is extremely necessary to change the filter according to the maintenance manual. Fuel and toplivopodkachivayushchy pumps do not need maintenance. Both pumps are put in action from a bent shaft through a chain of management which puts in action as well a cam-shaft. The opening in a head of the block of cylinders provides lubricant of each of two pumps with engine oil.
ARF – recirculation of final gases EVE – system of injection with the electronic and adjustable distributor ERE – system of injection with consecutive electronic regulation |
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