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
      3.1.3.2. Installation
      3.1.3.3. Ventilation of the engine
      3.1.3.4. Functioning
   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)
   3.2.3. 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

3.1.3.4. Functioning

GENERAL INFORMATION

Ventilation of the engine in the range from "idling to partial loading"

1. Goryacheplenochny measuring instrument of air mass
2. Cover of a head of the block of cylinders
3. Oil separator camera
Ventilation top partial / full loading
4. The highway of the soaked-up air
5. The highway of the deleted air
Ventilation top partial / full loading
6. Butterfly valve
7. Throttle with a diameter of 1,1 mm
8. The soaking-up tube
9. Highway of removal of air

10. Support of the pump of the amplifier of steering
11. Oil separator camera
12. Space for a crank
13. A recirculation pipe for oil (siphon)
14. Oil pallet
15. Case of management
16. Cylinder crank case
17. Head of the block of cylinders
18. Chain case
A. Fresh air
B. The blown gases
D. Connecting element

Mix of the ventilated gases is sucked in in the combustion chamber from the camera of a crank (12) via the camera of a separator of oil (11) and the highway of removal of air, and also a throttle (7) in power setting from "idling to average partial loading". In an oil separator oil separates from gas mix and comes through a by-pass opening and a by-pass pipe (13) to the oil pallet.

In order to avoid penetration of slags into engine oil a part of the soaked-up fresh air separates in a connecting element (D) and goes to the krivoshipny camera through the highway of the deleted air (5), the camera of a separator of oil (3), a case of a chain (18) and the case of management (15).