Mercedes S-Class W-140

In 1991-1999 editions

Repair and enterprise of the car

Mercedes S-Class
+ Mercedes Benz cars of the class S (W-140)
+ operation manual
+ Routine maintenance
+ motor
+ Cooling systems, heating
- Systems of power supply and edition
   + system of power supply and an injection of the combustible petrol engine - the general information
   + system of an injection of the combustible diesel engine - the general information
   + tax system injection of fuel and ignition of HFM-SFI (6-cylinder petrol engines)
   + tax systems LH-SFI and ME-SFI motor (8-cylinder petrol engines)
   + tax systems injection of fuel and ignition of ME-SFI and LH-SFI (12-cylinder petrol engines)
   + tax system fuel injection (diesel engines of the OM603.971 series)
   + tax system fuel injection (diesel engines of the OM606.961 series)
   - System of a turbo charging - the general information
      Interkuler - the general information, removal and the device
   Systems of immersion of toxicity of the edition - the general information
   System of the edition of the working gases - the general information
   Catalytic reformer (petrol models)
+ electric equipment of the motor
+ gear shifting boxes
+ Awtomatitscheckaja transmission
+ connection
+ brake system
+ Aufhängung and management
+ body
+ electric onboard equipment

System of a turbo charging - the general information

Turbocompressor - the general instructions, removal and the device

General information

Turbocompressor design (on the example of the motor 603.971)


137a — Pneumoantrieb of the gate which operates charging pressure And — the Absorbed air In — the Aggravated air With — Thoroughly working gases which turn the driving wheel of the turbine D — an exit of the working gases SOMETIME — Perepusknoj the turbocompressor gate N — masloprowod Pressure J — Down masloprowod	And — Perepusknoj the turbocompressor gate b — the floor With — compressor bodies d — the driving wheel of the compressor sometime — association with the operating highway And — turbine bodies g — the driving wheel of the turbine h — a turbocompressor body

The turbocompressor is intended for increase in engine capacity by means of increase in pressure of air in the access pipeline. Air does not work in cylinders simply, and is served in them under pressure. According to increase in transfer of air, TNWD increases fuel transfer.

Chart of the sequence of management of charging (motor 603.971)


B5/1 — pressure sensor 1 — TNWD 103 — Aneroidnyj the compensator (ALDA) 110 — a final collector 137 — a turbocompressor 137a — Pneumoantrieb of the gate of the operating charging pressure	138 — the access pipeline And — the Absorbed air In — the Aggravated air With — Thoroughly working gases which turn the driving wheel of the turbine D — an exit of the working gases

The turbine of the compressor is given to turns of the working gases. Gases, a special coat (a compressor coat) going, are served for the compressor turbine. The turbine rotates on a wave on which other end the wheel of the compressor is in the separated coat. Just it gives air under pressure to the pipeline.

Between the compressor and the pipeline the mezhdukholodilnik of compressed air (interkuler) is defined. In interkulere air is cooled, at the same time is compressed. parzialnoje pressure of oxygen increases that leads to increase in engine capacity.

Air pressure in the pipeline is limited to a special sensor. At achievement of Höchstdrucks saslonku sensor thereof transfer of the working gases to the turbine ogranichitelno opens.

The wave of the compressor is oiled with engine which is served after specially intended hose. The wave constantly "floats" in oil. Oil is taken away from the compressor in a peel after the coming-back hose.

The turbocompressor - it a component of a final collector cannot be separated from it.

Precautionary measures

Speed of Drehens of turbines of the compressor is huge, and working temperature is very big. To avoid receiving violations, and also not to damage, a turbocompressor, pay attention to the following precautionary measures:

Do not start the motor after removal of some component of a turbocompressor. The meeting of minor objects on shovels of turbines can lead to an exit of the last except the enterprise. They also risk to receive violation of the objects which are thrown out from the turbine;

After removal of some components of a turbocompressor or hoses of air receipt you cover from his pure old ragamuffin;

Gain speed right after start of the motor, especially if it is not heated is not present. Oil cannot grease a turbine wave at present;

You never leave ignition right after a car break. Do not press an accelerator pedal pedal before a motor break. At once oil stops after an ignition exception, to be served for a wave of the compressor and certain time it will rotate without lubricants;

Before deafening the motor, allow it that it worked at not aggravated changes several minutes during which the speed of Drehens of the turbine will significantly fall;

Regularly you change oil, the fat filter and the filter for purification of air. Use of old oil will lead to formation of deposits on a wave of the compressor and its exit except the enterprise. Before excluding hoses of transfer and return of oil of the compressor, you clean nearby surfaces carefully. You keep the accepted components in a dense container.

Concerning removal and the device address also offices to removal and to the device of a turbocompressor and loaders of air - a device detail.