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
+ Cooling system and heating
- Power supply system and release
   - Power supply system and fuel injection
      Dropping pressure in fuel system of the petrol engine
      Management of distribution of power - the description and the principle of the organization of function of shutdown of cylinders
      Supercharger of air
      Check and adjustment of speed of the single course / moment of ignition/concentration WITH
   + System of injection of fuel of the diesel engine. Turbocompressor
   + Systems of release and decrease in toxicity of the fulfilled gases
+ Engine electric equipment
+ Automatic transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment




Power supply system and fuel injection

General information and security measures

Fuel tank

45 — the Jellied mouth
55/3 — the fuel pressure Regulator (5.3 atm.)
55/3a — the Gate (50 liters an hour)
55/4 — the Intaking camera
75 — the Fuel tank
B4 — the Fuel level sensor
M3/1 — the Pump which is built in the fuel tank

A — the Socket of an electrical wiring of the pump which is built in the fuel tank
B — the Socket of an electrical wiring of the fuel level sensor
A — Return of fuel from pressure regulator (5.0 atm.) in the spraying camera
B — the Line of filling of the intaking camera from the pump which is built in the fuel tank
With — the Line of ventilation of the fuel tank
D — To the fuel pump


Function chart of system of microprocessor management of ME SFI 2.0. V6 and V8 engines

It is shown on the example of the engine 113
21 — the Final gate 1
22 — the Vacuum tank 1
22/1 — the Diaphragm switch of the inlet pipeline
55/1 — the Fuel filter with the built-in regulator of pressure
75 — the Fuel tank
76 — the Ventilating valve
77 — the Coal adsorber
89 — the EGR Valve
126 — the Valve of shutdown of admixture of secondary air (the valve of combustion chambers: built-in retaining valve)
128 — the Retaining vacuum valve
157 — the Three-functional catalytic converter at a partition of a motive compartment
158 — the Three-functional catalytic converter under the bottom
and — Other consumers
A1 — the Control panel
A1e58 — the Control lamp of failure diagnostics of the engine
A16g1 — the Sensor of a detonation 1 (the right side of the engine)
A16g2 — the Sensor of a detonation 2 (the left side of the engine)
B2/5 — the Film sensor of measurement of mass of air (MAF) (the built-in sensor of temperature of the soaked-up air [IAT])
B6/1 — the Sensor of effect of Hall of the camshaft
B11/4 — the Sensor of temperature of cooling liquid (CTS)
B28 — the Sensor of pressure 1
B37 — the Sensor of provision of a pedal
B40 — the Sensor of level/temperature/quality of oil
B40/2 — the Sensor of pressure of oil of system of shutdown of cylinders 1
G3/3 — the Left (verkhnepotochny) oxygen sensor
G3/4 — the Right (verkhnepotochny) oxygen sensor
G3/5 — the Left (nizhnepotochny) oxygen sensor
G3/6 — the Right (nizhnepotochny) oxygen sensor
K40/5kt — the Relay of the fuel pump
K40/7kL — the starter Relay
K40/7kN — the Relay of system of admixture of secondary air
L5 — the Sensor of provision of a bent shaft (CKP)
L6/1 — the Left forward wheel sensor
L6/3 — the Left back wheel sensor
M1 — the starter Plug 50
M3 — Fuel the pump
M16/6 — the Activator of a butterfly valve
M33 — the Electric air pump

N3/10 — ECM (ME-SFI)
N15/3 — the Module of management of the electronic traction control system (ETC)
N19 — the Module of management of the press button of system an upravlenliya additional air (AAS)
N22 — the Module of management of the press button of system an upravlenliya additional air (AAS)
N47-1 — the Module of management of the control system of thirst (ASR)/sensitive for the speed of system of hydrostrengthening of a wheel (SPS)
N54-1 — the Module of management of IR DAS
S16/10 — the Switch of definition of provision of transmission
S40/4 — the Variatorny switch of a tempostat
T1/1 —
T1/8 — Coils of ignition of cylinders 1-8 (dual coils)
X11/22 — the Diagnostic DLC II socket
Y22/6 — the Valve switch of the inlet pipeline of variable length of a path
Y31/1 — the Vacuum transdyuser of EGR
Y32 — the Valve switch of the air pump of system of admixture of secondary air (AIR)
Y58/1 — the Valve of management of an adsorber purge
Y62 — fuel injection Injectors
Y80 — the Valve of system of shutdown of cylinders of the right row 1
Y81 — the Valve of system of shutdown of cylinders of the left row 1
Y93 — the Final gate 1
CAN Tire of data
1 Only the engine 113.960 with system of shutdown of cylinders (code 479)


Arrangement of some electric elements

1 — the Relay of electronic control systems of the engine and a running gear
2 — ECM (ME-SFI)
3 — the Relay of the fuel pump

4 — the Sensor of extent of pressing of a pedal
5 — the Relay of the air pump
6 — the starter Relay


Air streams of the inlet pipeline with changeable geometry

And — the Air stream at the open operating gate on engine turns over 3900 in min.
22 — the Operating gate (on one on each cylinder)

In — the Air stream at the closed gate, at low loadings in the range of turns of 1750-3900 in min.
With — To the engine


Management of gas distribution. V6 and V8 engines

12 — the Inlet pipeline
17 — the Fuel distributive highway
19 — the Final collector with isolation by an air gap

22 — the Resonant gate
R4 — Spark plugs (2 on the cylinder)
Y62 — the Injector


Elements of the inlet pipeline with changeable geometry

12a — the Top part of the pipeline
12b — the Lower part of the pipeline
12s — the Top part of an insert of the pipeline
12d — the Lower part of an insert of the pipeline
22 — the Operating gate
22/1 — Diaphragm knot of switching of a tuboprovod

22/2 — gate Axes
22/3 — Connecting drafts
and — the Tube to diaphragm knot
b — the Tube to the valve of switching of the pipeline
M16/6 — the Drive of a butterfly valve
Y22/6 — the Inlet pipeline


Assembly of the fuel pump (under the bottom, at the left behind)

Fuel injectors (lateral faces of the engine)

Pressure sensor in the fuel tank (a forward central part of a luggage carrier)

Fuel reserve sensor (forward central part of a luggage carrier)

Thermometric measuring instrument of mass of vsasyayemy air (central back part of the engine)

Accelerator pedal sensor

Sensor of position of the crankshaft

Sensor of temperature of cooling liquid (forward, central part of the engine)

Detonation sensors

Right dokataliticheskiya lambda probe

Left dokataliticheskiya lambda probe

Left post-catalytic lambda probe

Right post-catalytic lambda probe

Element of installation of a butterfly valve (central back part of the engine)

Injector of injection of fuel in the 1st cylinder (the right side of the engine)


Petrol engines

Are a part of fuel system: established in a back part of the car (under a pillow of a back seat) the fuel tank with an adsorber on absorbent carbon, fuel-supply lines, the electric fuel pump, and also the electronic system of consecutive injection operated by the control unit. The function chart of a control system and an arrangement of sensors are submitted on accompanying illustrations.

The reserve of fuel is shown to the driver on the dashboard. Gather on the petrol engine of couple of gasoline in an adsorber and move in engine combustion chambers.

Style of driving of the car has significant effect on fuel consumption. Councils for decrease in fuel consumption:

  • After start of the engine at once start even if it occurs on a frost.
  • At a car stop for a while more on 40 with, switch off the engine.
  • Move always on the highest transfer.
  • At the movement on long distances whenever possible support uniform speed. Avoid the movement at high speeds. Drive the car circumspectly. Without need you do not brake.
  • You transport the car excessive freight. If the luggage carrier is not used, remove it from a roof.
  • Check air pressure in tires. Do not allow excessive pressure decrease.

Diesel engines

Are a part of fuel system: established in a back part of the car (under a pillow of a back seat) the fuel tank, the fuel filter, nozzles, fuel tubes and hoses, the fuel reserve sensor located in a