Mercedes S-Class W-220

since 1998 release

Repair and operation of the car



Mercedes W220
+ Mercedes-Benz cars of the class S (W220)
+ Operation manual
+ Routine maintenance
- Engine
   Check of a compression in engine cylinders
   Check of the engine by means of the vacuum gage
   Belt of the streaming drive of auxiliary units
   Gas-distributing mechanism and elements of the engine
   Replacement of chains of the GRM drive and installation of phases of gas distribution
   Location of the main sensors of the petrol engine
+ Cooling system and heating
+ Power supply system and release
+ Engine electric equipment
+ Automatic transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment






Gas-distributing mechanism and elements of the engine

Lower protection of a motive compartment

Back part of a motive compartment
1 — the Bolt
Central part of a motive compartment
1 — the Bolt

Forward part of a motive compartment
1 — the Bolt
A — the Right forward covering
B — the Left forward covering


Elements of engines 112 and 113

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 — Valvate levers
9 — Axes of valvate levers
10 — the Top saddle of a valvate spring
11 — the Valvate spring
12 — the Lower saddle of a valvate spring
13 — valve Crackers
14 — Maslootrazhatelny 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 the GRM drive
20 — a cam-shaft Asterisk
21 — a crankshaft Asterisk
22 — the Intermediate gear wheel
23 — a GRM drive Chain
24 — Natyazhitel

25 — the Boot of a natyazhitel of a chain
26 — Uspokoiteli of a chain
27 — Piston rings
28 — the Piston
29 — the rod finger Plug
30 — the Rod
31 — Inserts of conrod bearings
32 — the Forward epiploon of the crankshaft
33 — Inserts 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 tortional fluctuations
39 — a crankshaft Pulley
40 — the case Pallet
41 — the Oil pump
42 — the Asterisk of the oil pump
43 — the Chain of the drive of the oil pump
44 — the Lever of a natyazhitel
45 — Pruzhina of a natyazhitel
46 — the Finger
47 — the Oil cooler


Elements of the inlet pipeline

19 — the Inlet pipeline
19/1 — the Bolt
19/3 — Laying
89 — the EGR Valve

89/2 — Tubka of the EGR valve
6 — the Combined valve
The arrow specified an opening under the combined valve


Air streams of the inlet pipeline with changeable geometry 12

22 — the Operating gate
And — Intake of air at the open gate
In — Intake of air at the closed gate

With — To the engine
D — Air from the air filter


Management of an admission and release on petrol engines 112 and 113

12 — the Inlet pipeline
17 — the Fuel highway
19 — the Final collector

22 — the Resonant gate
R4 — Spark plugs (double sparking)
Y62 — the Injector


General view of the engine 113 equipped with the inlet pipeline 12 with changeable geometry on (S430 and S500)


Protection of the bottom and basic elements of engines 112 and 113 are presented on illustrations.

The mechanism of gas distribution of petrol engines is presented on an illustration. 3 valves (2 inlet and 1 final) and 2 spark plugs on each cylinder are used. The special device allows to disconnect control of valves for decrease in fuel consumption (address materials of the Head of the Power supply system and release). The resonant inlet pipeline changes the length for each cylinder separately by means of electronically controlled gates with servo-drivers.