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
   + 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 release

Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type

Fuel tank, l
  • models without cover for skis

including reserve reserve of fuel

  • models with a cover for skis

including reserve reserve of fuel

Petrol models
Unleaded gasoline is not worse than AI-95/A-85, perhaps temporary use of unleaded gasoline is not worse than AI-91/A-82.5. At the same time engine capacity will decrease a little, at increase in fuel consumption
Do not apply additive to fuel. They can result in the increased wear or damage of the engine. 
Diesel models
Summer and winter diesel fuel No. 2 or No. 1 on ASTM D975
Do not apply ship (Marine Diesel Fuel), diesel fuel boiler, etc.
When using diesel fuel about the content of sulfur over 0.5%, you make replacement of motive oil each 7500 km.
Winter fuel, provides normal working capacity to -20 °C.
Thanks to preliminary heating of fuel at the included system of heating of the car, the car on winter diesel fuel can be operated, as a rule, without refusals at a temperature of external air up to -25 °C.
Do not add gasoline to diesel fuel.
In case of use of summer diesel fuel, and also at a temperature of external air below -15 °C it is necessary to add certain, depending on temperature of external air quantity of means for improvement of fluidity or kerosene to fuel.
Means for improvement of fluidity can be used also in combination with kerosene.
You can receive the certificate of the allowed funds for improvement of fluidity for any HUNDRED Mercedes-Benzs.
The additive share taking into account temperature of external air has to be minimum.
The kerosene share in mix has to make no more than 50%.
Add additive to diesel fuel before loss of property of fluidity of diesel fuel owing to release of paraffin. Faults owing to release of paraffin can be rectified only heating of all power supply system.
You carry out mixing of diesel fuel with kerosene only in the fuel tank. For this purpose in a tank at first fill in kerosene, and then add diesel fuel.
After that the engine has to work some time in order that mix was distributed on all power supply system.

Additives of kerosene lead to decrease in a point of ignition of diesel fuel. Thereof danger at the treatment of fuel mix increases. Follow the corresponding safety regulations!

System of injection of the petrol engine: electronic microprocessor system of the distributed injection of ME SFI 2.0 or HMS. The inlet pipeline with changeable geometry
System of injection of the diesel engine: electronic microprocessor with direct injection of "Common-Rail", a turbo-supercharging and cooling of the blown air
Pressure of fuel, atm.
The engine 113, with the connected vacuum
3.7 – 4.2
Productivity of the fuel pump
1 l / 35 sec.

Idling turns

Adjustment of speed of idling within maintenance is not required.
Content in the fulfilled gases on single turns
WITH in an exhaust pipe, %
max. 0.5
CO 2, %
14.5 – 16.0
O 2, %
0.1 – 0.5
Contents WITH on 2800 – 3100 rpm
Value lambda
0.98 – 1.02


Dual chain from a crankshaft asterisk
Injection moment Is established by means of the control probe, the piston of the 1st cylinder of the engine has to be in VMT
Efforts of tightening of threaded connections
The moments of an inhaling of fixture are given also in the text of the Head and on some illyustratsiyakh*.
* The moments of an inhaling highlighted in the text in bold type are subject to exact observance; the efforts which are not highlighted in bold type are given only approximately
Nuts of a final collector
16 H • m
Reception pipe to a final collector
20 H • m