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S-class W202 Mercedes1993-2000 of releaseRepair and car operation |
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W202 Mercedes + 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. Bottom 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 tarelchaty 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. Compression + 3.1.17. Klinovy belt 3.1.18. Diagnostics of malfunctions (DB) 3.1.19. General comments 3.1.20. Repair work without engine dismantle + 3.1.21. Major maintenance of the engine - 3.2. Diesel engine (DD) + 3.2.2. Engine 3.2.3. Cars with the conditioner 3.2.4. Bottom 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. Maslootrazhatelnye caps 3.2.10. Cover of a head of the block of cylinders (2,2/2,5 l) 3.2.11. Hydraulic tarelchaty 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. Head of the block of cylinders and motor block 3.2.16. Compression 3.2.17. Maple ridge belt 3.2.18. Tense device of a maple ridge belt 3.2.19. Diagnostics of malfunctions (DD) + 4. Greasing system + 5. Cooling system + 6. Heating, ventilation + 7. Ignition system + 8. Fuel system + 9. Transmission + 10. Running gear + 11. Steering + 12. Brake system + 13. Body + 14. Electric equipment + 14.2. Electroschemes 
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3.2. Diesel engine (DD)3.2.1. Introduction
Diesel engine in working volume of 2,0 l
Diesel engine in working volume of 2,0 l
Engine in volume of 2,0 l
Mercedes C-class is equipped ryadny, 4-or 5-cylinder diesel engines. In diesel engines in the cylinder clean 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 (about 600 ° C). When the piston is near the top dead point, fuel is injected into the compressed air and самовоспламеняется therefore there is no need 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 glow plug which eats from the tension submitted through the relays 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 bar) is created. The regulator of the fuel pump operates amount of injected fuel according to actuating of a pedal of an accelerator. At the right time fuel is injected through nozzles into the prechamber of the corresponding cylinder. Before fuel will arrive in the fuel pump, it passes through the heat exchanger. There fuel gets warm previously, 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 toplivopodkachivayushchy pumps do not need maintenance. 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 opening in a head of the block of cylinders provides greasing of each of two pumps with engine oil.
ARF – a retsirkulyatsiya of final gases EVE – injection system with the electronic and adjustable distributor ERE – injection system with consecutive electronic regulation |
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