Mercedes of the S-class W202

1993-2000 of release

Repair and operation of the car

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
         3.2.2.2. Installation
         3.2.2.3. Ventilation of the engine
         3.2.2.4. Functioning
   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

3.2.2.4. Functioning

GENERAL INFORMATION

126. Oil separator
127. Recirculation pipe
140. Distributive pipe
141. Valve of adjustment of pressure

and. Air vent with a diameter of 3 mm
A. Produvnye gases
B. Fresh air

Hot gases direct through an oil separator (126) in a cover of a head of the block of cylinders and via the pipeline (140) in the soaking-up branch pipes. In an oil separator (126) oil is filtered and flows through a recirculation pipe (127) back to a head of the block of cylinders.

The valve of adjustment of pressure in a cover of a head of the block of cylinders prevents emergence in the engine of too high depression.

For ventilation of space of a membrane the air vent (shooter) is provided in the valve of adjustment of pressure in a cover of a head of the block of cylinders. It should not be littered with dirt or preservatives.