S-class W202 Mercedes

1993-2000 of release

Repair and car operation



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)
   3.2.3. 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. Engines

3.1. Petrol engine (DB)

3.1.1. Introduction

GENERAL INFORMATION

Engine in working volume of 2,2 l

1. Double roller chain
2. Cover of filling with oil
3. Cover of a head of cylinders
4. Head of cylinders
5. Piston
6. Flywheel
7. Cylinder
8. Flywheel
9. Oil filter
10. Hydraulic coupling
11. Fan
12. Crankshaft pulley
13. Chain of a drive of the oil pump
14. Oil pump
15. Oil pallet
16. Cranked shaft

1. Cover of a head of cylinders
2. Cover of wires of ignition
3. Inlet cam-shaft
4. A soaking-up collector
5. Injection valve
6. Rod
7. Crankshaft
8. Oil pump
9. Bolt of a masloslivny opening
10. Hydraulic tarelchaty pusher
11. Masloizmeritelny щуп
12. Final valve
13. Final collector
14. Piston
15. A directing pipe masloizmeritelny щупа
16. Oil pallet

In the Mercedes C-class model stand ryadny, 4-or 6-cylinder engines.

In the motor block from gray cast iron openings of working cylinders are turned. At existence on their walls задиров or рисок they can be chiseled in a specialized workshop. Therefore pistons should be established in working cylinders with a tightness. In the bottom of the motor block the cranked shaft which is fixed in 5 and 7 bearings of the crankshaft is located. By means of the sliding bearing the rods putting in action pistons, are connected with cranked shaft. From below the engine the oil pallet is attached, – the engine oil demanded for greasing and cooling gathers to it. From above to the motor block the head of cylinders executed from aluminum which possesses good heatconductivity fastens and it is much easier some gray cast iron. The head of cylinders is made by a principle of a cross-section stream. That is the toplivovozdushny mix enters on one party of a head of cylinders while hot gases are pushed out from the opposite side. Thanks to a principle of a cross-section stream the best gas exchange is carried out. In a head of cylinders there are two camshafts: one for inlet, and another for final valves. Four valves are directly given from a cam-shaft through tarelchaty pushers. Hydraulic tarelchaty pushers provide automatically uniform gap of valves under any service conditions thanks to what adjustment of gaps of valves within servicing is not required.

Greasing of the engine is provided by the oil pump. It is strengthened ahead on the block of cylinders and is brought by means of an additional roller chain. Oil sucked in from the oil pallet through openings and channels reaches bearings of the crankshaft and cam-shafts, and also working surfaces of cylinders.

The pump of cooling liquid at 4-cylinder engines is fixed ahead on the motor block, and at the 6-cylinder – sideways the motor block. The pump is given from a ridge maple belt which in addition gives the generator and the steering pump. Keep in mind that the contour of system of cooling should be filled annually with a fresh mix of antifreeze and anticorrosive means on the basis of the decalcified water.

For preparation of a flammable toplivovozdushny mix the operated device of injection and ignition which practically does not demand leaving serves completely elektronno.
Engine model
С180
С200
С220
С280
The release beginning with
6/93
1/94
6/93
6/93
Type
202.018
202.020
202.022
202.028
Engine
111.920
111.941
111.961
104.941
Working volume of cylinders, cm3
1799
1998
2199
2799
Capacity,
kW at rpm.
h.p. at rpm.

90/5500
122/5500

100/5500
135/5500

110/5500
150/5500

142/5000
193/5000
Torque, N of m at rpm.
170/4200
190/4000
210/4000
270/3750
Diameter of the cylinder, mm
85,3
89,9
89,9
98,9
Piston stroke, mm
78,7
78,7
86,6
73,5
Extent of compression
9,8
9,6
9,8
9,8
Number of cylinders
4
4
4
6
Injection / Ignition
PMS
PMS
HFM
HFM
Operating procedure of cylinders
1–3–4–2
1–3–4–2
1–3–4–2
1–5–3–6–2–4
Fuel / ROZ without the content of lead
Super/95
Super/95
Super/95
Super/95
Refueling capacities:
  – engine oil (with the filter), l
5,8
5,8
5,8
7,5
  – cooling liquid, l
8,0
8,0
8,0
10,0