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
      Precautionary measures and rules of attention of purity in operating time with system of fuel
      Dropping pressure in system of the combustible petrol engine
      Check and regulation of number of changes of not aggravated movement / moment of ignition / concentration With
   + 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
   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 power supply and injection of the combustible petrol engine - the general information

General information

Come to structure of system of fuel: defines in constructing machines (under a pillow of back sitting) the tank with an adsorber on absorbent carbon, topliwoprowody, the electric pump for fuel, and also electronic system of a consecutive injection which is operated by the control unit.

The reserve of fuel appears to the driver on the panel of devices. Gather on the petrol engine of couple of gasoline in an adsorber and are served in cameras of burning of the motor.

The significant effect on costs of fuel carries out style of driving of the car. Several councils are given for the reasonable handling of the accelerator pedal below.

  • After start of the motor you go at once even if occurs on a frost;
  • At a break of the car is for a while 40 more with, you exclude the motor;
  • Move always on the highest transfer;
  • At the movement on big removals you support uniform speed whenever possible. Avoid the movement at high speeds. Operate the vehicle it is considered. Needlessly you do not brake;
  • They send the car excessive freight. If the luggage compartment is not used, accept it from a roof;
  • Check air pressure in the tire. Do not allow the increased immersion of pressure.
  • Charts of the sequence of systems of an injection, scheme of associations of vacuum and arrangement of components of tax systems motor

    The chart of the sequence of system of an injection wdigatelej 119 and 104 (the motor 119 is shown)

    40 — Diafragmennyj of regulators of pressure
    55 — the filter for fuel
    60 — establishment of vacuum
    74 — the fuel refrigerator
    75 — the tank
    76 — the ventilation gate
    77 — a coal adsorber of parow of gasoline
    89 — the EGR gate (left on the motor 120)
    89a — the Right EGR gate on the motor 120
    98 — Dempfernoje pneumatic establishment of switching to the raising transfer
    125 — the air pump
    126 — the air otsetschki podmeschiwanija gate in a final collector
    127 — the return podmeschiwanija gate of air in a final collector (left on the motor 120)
    127a — the return podmeschiwanija gate of air in really, on the motor 120, a final collector
    128 — the return gate (dilution)
    135 — the return gate (formation of dilution)
    136 — the vacuum camera
    156 — a final collector
    158 — the Catalytic reformer
    A1e26 —" You check a control lamp of refusals (MIL/motor")
    A9 — the K/W Compressor
    A16 — Sensors of explosion (KS)
    A16g1 — the Left sensor of explosion of KS
    A16g2 — the Right sensor of explosion of KS
    B2/2, B2/3 — the Thermo-metric sensor of measurement of mass of air (MAF)
    B11/2 — a contact sensor 4 temperatures of the cooled liquid (ECT)
    B11/7 — a sensor of temperature of the absorbed air (IAT)
    B11/9 — the Left sensor of ECT
    B17/5 — the Left sensor of IAT on the motor 120
    B17/6 — the Right sensor of IAT on the motor 120
    B17/7 — a sensor of temperature of the absorbed air (IAT)

    G3/2 — the Warmed-up probe ljambda (left on the motor 120)
    G3/4 — the rights the warmed-up probe ljambda on the motor 120
    K17 — the Relay of the podmeschiwanija system of air in a final collector
    K27 — the pump Relay for fuel
    K27/1 — the Left relay of pumps for fuel 1 and 2 on the motor 120
    K27/2 — the Right relay of pumps for fuel 1 and 2 on the motor 120
    L5 — the Sensor of provision of a bent shaft (CKP)
    L5/1 — a sensor of provision of a wave of curve (CMP)
    L5/2 — the Left sensor of CMP on the motor 120
    L5/3 — the Right sensor of CMP on the motor 120
    L5/4 — the Left sensor of CKP on the motor 120
    L5/5 — the Right sensor of CKP on the motor 120
    M3m1 — the Pump for fuel 1
    M3m2 — the Pump for fuel 2
    M16/1 — Executive establishment of acceleration (drosselnoj saslonki incentive)
    M16/3 — the Left incentive of drosselnoj saslonki on the motor 120
    M16/4 — the Right incentive of drosselnoj saslonki on the motor 120
    N1/3 — the control unit of system of ignition EZL/AKR
    N1/4 — the Left control unit of system of ignition on the motor 120
    N1/5 — the Right control unit of system of ignition on the motor 120
    N3/1 — ECM
    N3/2 — the reference ECM on the motor 120
    N3/3 — the right of ECM on the motor 120
    N4/1 — the acceleration control unit (drosselnoj saslonki incentive)
    N4/3 — the control unit of system of stabilization of changes of idling (IAC)/tempostata
    N16/1 — the effort stabilizer
    N59 — the Diagnostic module (the Californian models)


    funkzonalnaja scheme of system of an injection of the motor 120

    R16/2 — Model Resistor of the module of ignition
    R16/3 — Model Resistor of the left module of ignition on the motor 120
    R16/4 — Model Resistor of the right module of ignition on the motor 120
    S29/3 — limit switches of a sensor of idling
    S40 — the tempostata Switch
    A — Wykl
    B — the exile / device
    SP — Pereustanowka
    V \brakes of the motor / device
    S65 — the Protective switch of an overload of transmission (a tape brake of B1)
    S65/1 — protective switches of an overload of transmission (a tape brake of B21). Motor 120
    T1 — the ignition Coil
    T1/1 — the coil of ignition of the right head of cylinders on the motor 120
    T1/2 — the coil of ignition of the left head of cylinders on the motor 120
    Y3/3 — Pneumoventil of the muffler of switching to the raising transfer
    Y27 — the Switching EGR gate

    Y27/2 — the Left EGR switch on the motor 120
    Y27/3 — the Right EGR switch on the motor 120
    Y32 — the Switching air pump podmeschiwanija gate in a final collector
    Y33 — Electromagnetic mufta of the pump podmeschiwanija of air in a final collector
    Y49 — the Electromagnetic gate of the regulator of a wave of curves
    Y49/1 — the Electromagnetic gate of the regulator of a wave of curves of the left head of cylinders on the motor 120
    Y49/2 — the Electromagnetic gate of the regulator of a wave of curves of the right head of cylinders on the motor 120
    Y58/1 — Pneumoumschalter of a coal adsorber
    Y58/2 — the Left Pneumoumschalter of a coal adsorber on the motor 120
    Y58/3 — the Right Pneumoumschalter of a coal adsorber on the motor 120
    Y62 — inschektory fuel (to the left number of cylinders on the motor 120)
    Y63 — inschektory fuel of the right number of cylinders on the motor 120


    Scheme of transferring of lines of vacuum (motors 104)

    1 — ressiwer Vacuum
    2 — the dilution switch
    3 — saslonka Resonance
    4 — the air otsetschki gate (with the installed control gate)
    5 — the Electric vacuum pump
    6 — the switch of the gate of the air pump
    7 — the control gate of vacuum

    8 — Diafragmennyj of regulators of pressure
    9 — a sensor of absolute pressure in the pipeline of access (MAP)
    10 — the gate of management Durchblasens
    11 — To a coal adsorber
    12 — the drosselnoj saslonki activator


    Scheme of transferring of lines of vacuum (motors 119)

    1 — ressiwer Vacuum
    2 — the control gate of transfer of dilution
    3 — Diafragmennyj of regulators of pressure
    4 — the gate of management Durchblasens
    5 — To the module of management of system of an injection ME-SFI

    6 — To a coal adsorber
    7 — the Electric air pump
    8 — the air transfer shutdown gate
    9 — a sensor of absolute pressure in the pipeline of access (MAP)
    10 — the switch of the gate of the air pump


    The scheme podwodki vacuum and isparitelnych of lines to the access pipeline (motors 120)

    40 — Diafragmennyj of regulators of pressure
    125 — the air pump
    126 — the air otsetschki gate
    126a — the Right otsetschki gate of air
    127 — the Left control gate (air podmeschiwanija)
    128 — the control gate of vacuum
    135 — the control gate of the line of giving of dilution
    136 — ressiwer vacuum
    M16/3 — the Left activator of an electronic pedal of an accelerator /
    Tempostata/establishment of management of changes
    Idling. In the left part of the power plant

    M16/4 — the Right activator of an electronic pedal of an accelerator /
    Tempostata/establishment of management of changes
    Idling. In the right part of the power plant
    Y32 — the Switch of the gate of the air pump
    Y33 — Electromagnetic mufta of connection vozdushno
    Pump
    Y58/2 — the Left gate of management Durchblasens
    Y58/3 — the Right gate of management Durchblasens
    a — to a coal adsorber
    rt — red color
    gr — it is gray
    sw — in black color
    tr — is neutral


    Inschektor of the first cylinder is in the right forward part of the power plant (on the example of the 12-cylinder motor)

    Installation of the pump for fuel will be under car, before the right back half shaft interrupted

    The pump relay for fuel is on the right in the luggage compartment, behind the back block of installation of protection devices

    The sensor of a reserve of fuel is in the left forward corner of the luggage compartment, on the tank

    The gate of switching of the pipeline of access will be under the pipeline of access (Untenansicht) interrupted

    The left thermo-metric measuring device of mass of air (MAF) will be in the right part of motor office on which interrupted sleeves of air receipt

    The left sensor of temperature of the cooled liquid will be at the left in a forward part of the power plant interrupted

    He would argue a sensor of temperature of the cooled liquid will be at the left in a forward part of the power plant interrupted

    The sensor of temperature of the cooled liquid (ECT) is in the top part of the left forward corner of the power plant

    The left sensor of explosion (KS) is in deepening above on the motor (on acceptance the motor of the car is accepted)

    The left sensor of explosion (KS) 1 is in deepening above on the motor (on acceptance the motor of the car is accepted)

    The left sensor of provision kolenwala of a bent shaft (CKP) on the V12 motor, - on the right on a back wall of the block of the motor (on acceptance the car motor is accepted)

    He would argue a sensor of situation kolenwala (CKP) on dvigatelev12, - behind in the top part of the block of cylinders (the motor is accepted by car)

    The reference dokatalititscheski the probe ljambda 1, - under car, it is dense to the German mail, about the catalytic reformer

    Dokatalititscheski the probe ljambda 1, - under car, is dense to the German mail, on section of a pipe of system of the edition, before the catalytic reformer

    The left post-catalytic probe ljambda 2, - under car, near the German mail

    The post-catalytic probe ljambda 2, - under car, near the German mail under back sitting, in a pipe of system of the edition for the catalytic reformer

    Electromagnetic mufta of the pump podmeschiwanija of air is below in the right forward corner of motor office

    It would argue the Durchblasens gate of an adsorber will be in the left part of motor office, on a safety guard of a leaf of a wheel interrupted

    The left Durchblasens gate of an adsorber will be in the right part of motor office, on a safety guard of a leaf of a wheel, behind the expanding container of the cooling system interrupted

    The Durchblasens gate of an adsorber is in the left forward corner of motor office, on a safety guard of a leaf of a wheel

    The otsetschki gate blowing off of an adsorber will be under car, in thinking out a leaf of the left back wheel interrupted