Mercedes S-Class W-140

1991-1999 of release

Repair and car operation



Mercedes S-Class
+ Mercedes-Benz Cars of a class S (W-140)
+ Operation manual
+ Routine maintenance
+ Engine
+ Systems of cooling, heating
- Power supply system and release
   - Power supply system and injection of fuel of the petrol engine - the general information
      Security measures and rules of observance of purity at work with fuel system
      Sbrasyvaniye of pressure in fuel system of the petrol engine
      Check and adjustment of number of turns of the single course/the moment of ignition/concentration WITH
   + System of injection of fuel of the diesel engine - the general information
   + Control system of injection of fuel and HFM-SFI ignition (6-cylinder petrol engines)
   + Control systems of the LH-SFI and ME-SFI engine (8-cylinder petrol engines)
   + Control systems of injection of fuel and ME-SFI and LH-SFI ignition (12-cylinder petrol engines)
   + Control system of fuel injection (diesel engines of the Om603.971 series)
   + Control system of fuel injection (diesel engines of the Om606.961 series)
   + turbo-supercharging System - the general information
   Systems of decrease in toxicity of release - the general information
   System of production of the fulfilled gases - the general information
   Catalytic converter (petrol models)
+ engine Electric equipment
+ gear shifting Box
+ Avtomaticheckaya transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



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Security measures and rules of observance of purity at work with fuel system

At work with fuel system it is necessary to observe the following security measures and purity:

  • Do not use near a workplace open fire, do not smoke and do not hold any strongly warmed up subjects. There is a danger of accident! Keep in readiness the fire extinguisher;
  • Watch normal ventilation of a workplace. Fuel pairs are poisonous;
  • The fuel system is under pressure. When opening system fuel can escape under pressure. Collect fuel a rag. Use goggles;
  • At work with components of a power supply system of the diesel engine observe special precautionary measures. In special degree it belongs to nozzles. Keep in mind that pressure of fuel at an exit makes about 1100 atmospheres of nozzles. Do not allow hit of any parts of a body under a fuel stream;
  • Shlangovye connections fasten by means of tape or tightening collars. It is necessary to replace tightening collars with tape collars or collars of the last design surely. For installation of tape collars there is a special adaptation, for example HAZET 796-5;
  • Connections and places adjoining to them before opening carefully clear;
  • The removed details stack on a pure lining and close. Apply for this purpose polyethylene or paper. Do not apply for this purpose ворсящуюся rags;
  • Carefully close open details or put technological caps if repair lasts some time;
  • Establish into place only pure details. Spare parts take out from packing only directly ahead of installation. Do not apply details which were stored unpacked (for example, stored in a tool box);
  • At open fuel system whenever possible do not work with the compressed air. Whenever possible do not move thus the car;
  • Do not apply some hermetics containing silicone. The elements which have got to the engine of silicone in the engine do not burn down and damage the oxygen sensor.
  • Security measures at removal of a fuel tank:

  • Before removal of a tank merge from it fuel or pump out fuel pump specially provided for this purpose;
  • The fuel tank acts in film from the bottom party of the car. Before a detachment of collars of fastening of a tank bring to it from below a jack and linings;
  • The empty tank is explosive and cannot be utilized in such look. Before utilization the tank should be cut on a part. Watch that thus there was no spark. For this purpose hand over a fuel tank in the specialized enterprise;
  • After tank installation into place start the engine and check tightness of all connections.