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
   Active system of the prevention of term of approach planned THAT (ASSYST)
   Schedule of routine maintenance
   General information on control
   Check of levels of liquids, control of leaks
   Check of a condition of tires and pressure in them, designation of tires and disks of wheels, rotation of wheels
   Replacement of impellent oil and oil filter
   Check of brake system
   Check of fuel system, replacement of the fuel filter
   Check of a condition and replacement of hoses of an impellent compartment, localization of leaks
   Check of a condition of ridge belts of a streaming drive of auxiliary units
   Check of functioning of system of cooling and frost resistance of cooling liquid, liquid replacement
   Check of a condition of system of production of the fulfilled gases
   Check of level of ATF, AT filter replacement
   Visual check of tightness of automatic transmission
   Check of a condition of components of a suspension bracket and steering
   Check of a condition of protective covers of power shafts
   Check of central air of air
   Greasing of limiters of doors and cylinders of locks
   Visual control of a seat belt and safety cushion block
   Check of operability of headlights and horn
   Condition check, adjustment and replacement of brushes of screen wipers
   Check of a condition of the battery, care of it and charging
   Replacement of the salonny filter
   Replacement of brake liquid
   Check and replacement of spark plugs, check of a condition of high-voltage wires (petrol models)
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ gear shifting Box
+ Avtomaticheckaya transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

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General information on control

The term "control" is used in this Management rather for designation of a complex of procedures, than one separate procedure.

If from the moment of car purchase the schedule of routine maintenance is strictly observed, frequent checks of level of liquids and a condition of components subject to raised wear as it is offered in this Management will be carried out, the engine will long remain in a good working condition, and need for carrying out any additional work will be minimized.

Is more often, however, happens so that the engine works inefficiently owing to neglect with regular service. Even more often it happens upon purchase of the second-hand car which owners did not trouble themselves with frequent and regular checks and service. In this case, besides performance of usual procedures on routine maintenance, it will be necessary to make setup of the engine.

The first step in any procedure of control or diagnostics for the purpose of improvement of operation of the engine is check of extent of compression in cylinders. Compression check (address to Head the Engine) will help to define a condition of internal components of the engine and should serve as the index at carrying out control and repair. If, for example, check of extent of compression indicates serious internal wear of the engine, usual control will not help to improve its work and will be waste of time and money. As procedure of check of extent of compression is the extremely important, the expert owning the equipment specially intended for this purpose should see off her.

For engine reduction in a good working condition performance of the following procedures more often is required.

Minimum settings

  • Check of all liquids connected with operation of the engine.
  • Check of a condition of all hoses of an impellent compartment (Section Check of fuel system, replacement of the fuel filter).
  • Check and adjustment of a tension of driving belts (The section Check of a condition and replacement of hoses of an impellent compartment, localization of leaks and see. Head Engine).
  • Cleaning, survey and check of a charging of the battery (Section Check of a condition of the battery, care of it and charging).
  • Replacement of spark plugs or incandescence - on the diesel engine (see. Head engine Electric equipment).
  • Survey of VV of wires of candles (see. Head engine Electric equipment).
  • Check of the air filter (Section Replacement of the salonny filter).
  • Check of system of cooling.
  • General settings

    In addition to the settings listed in the previous list:
  • Check of system of ignition or preheat - on the diesel engine (address to Head engine Electric equipment).
  • Check of system of a charging (address to Head engine Electric equipment).
  • Check of fuel system (address to Head of the Power supply system and release).
  • Replacement of VV of wires of spark plugs (see. Head engine Electric equipment).