Mercedes C-Class

W203 since 2000 of release

Repair and car operation


Mercedes-Benz
+ Mercedes-Benz Cars of a class C (W-203)
+ Operation manual
+ Routine maintenance
- Engine
   Compression check in engine cylinders
   Engine check by means of the vacuum gage
   Removal and installation of a cover of an impellent compartment from the bottom
   + 4-cylinder petrol engines
   - 6-cylinder petrol engines
      Removal and installation of a head of cylinders
      Replacement of chains of a drive of GRM and installation of phases of a gazoraspredeleniye
      Removal and installation of a maple belt
   + Diesel engines
   + System of greasing of the engine
+ cooling and heating Systems
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment





6-cylinder petrol engines

Main data

Basic elements of the engine 112 are presented on illustrations. 3 valves (2 inlet and 1 final) and 2 spark plugs on each cylinder are applied. The special device allows to disconnect management of valves for decrease in fuel consumption (address to materials of Head of the Power supply system and release). The resonant inlet pipeline changes the length for each cylinder separately by means of electronic operated a zaslonok with servo-drivers.

6-cylinder petrol engine of 3.2 l (112)

1 — the Hose of absorption of air
2 — the Chain of the mechanism of a gazoraspredeleniye
3 — the Oil filter
4 — the Tank of liquid of the power steering
5 — the Pulley of a cranked shaft
6 — the conditioner Compressor
7 — the Measuring instrument of weight of air 		8 — the Fuel distributive highway
9 — the Injector
10 — the ignition Coil
11 — the Spark plug
12 — the Final collector
13 — the case Pallet

Engine 112 elements

1 — the Block of cylinders
2 — Heads of cylinders
3 — Laying of heads of cylinders
4 — Covers of heads of the block
5 — Laying of covers of heads of the block
6 — Inlet valves
7 — Final valves
8 — Klapannye levers
9 — Axes of klapanny levers
10 — the Top saddle of a klapanny spring
11 — Klapannaya a spring
12 — the Bottom saddle of a klapanny spring
13 — valve Crackers
14 — Maslootrazhatelnye caps
15 — the Auxiliary tube for landing of a maslootrazhatelny cap
16 — Pushers of valves
17 — a valve Saddle
18 — the Cam-shaft
19 — the Forward cover of a drive of GRM
20 — a cam-shaft Asterisk
21 — a crankshaft Asterisk
22 — the Intermediate gear wheel
23 — the Chain of a drive of GRM
24 — Natyazhitel 		25 — the Boot of a natyazhitel of a chain
26 — Uspokoiteli of a chain
27 — Piston rings
28 — the Piston
29 — the Plug of a finger of a rod
30 — the Rod
31 — Loose leaves of shatunny bearings
32 — the Forward epiploon of the crankshaft
33 — Loose leaves of bearings
34 — Persistent half rings
35 — the Crankshaft
36 — the Back epiploon of the crankshaft
37 — the Cover with a back epiploon of the crankshaft
38 — the Damper of krutilny fluctuations
39 — a crankshaft Pulley
40 — the case Pallet
41 — the Oil pump
42 — the Asterisk of the oil pump
43 — the Chain of a drive of the oil pump
44 — the Lever of a natyazhitel
45 — the Spring of a natyazhitel
46 — the Finger
47 — Maslookhladitel

Air streams of the inlet pipeline with changeable geometry 12

22 — the Operating zaslonka
And — Intake of air at an open zaslonka
In — Intake of air at the closed zaslonka 		With — To the engine
D — Air from the air filter

Management of an admission and release on petrol engines 112

12 — the Inlet pipeline
17 — the Fuel highway
19 — the Final collector with isolation of an air gap 		22 — the Resonant zaslonka
R4 — Spark plugs (a double iskroobrazovaniye)
Y62 — the Injector