Mercedes S-Class W-140

1991-1999 of release

Repair and operation of the car



Mercedes S-Class
+ Mercedes-Benz cars of the class S (W-140)
+ Operation manual
- Routine maintenance
   Specifications
   Active system of the warning of the 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 motive oil and oil filter
   Check of the brake system
   Check of fuel system, replacement of the fuel filter
   Check of a state and replacement of hoses of a motive compartment, localization of leaks
   Check of a condition of ridge belts of the streaming drive of auxiliary units
   Check of functioning of the cooling system and frost resistance of cooling liquid, liquid replacement
   Check of a condition of system of production of the fulfilled gases
   Check of the ATF level, replacement of the AT filter
   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 the air conditioning system
   Lubricant of limiters of doors and cylinders of locks
   Visual control of a seat belt and block of a safety cushion
   Check of operability of headlights and horn
   Check of a state, adjustment and replacement of brushes of screen wipers
   Check of a condition of the battery, care of it and charging
   Replacement of the saloon filter
   Replacement of brake fluid
   Check and replacement of spark plugs, check of a condition of high-voltage wires (petrol models)
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Gear shifting box
+ Automatic transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment






Active system of the warning of the term of approach planned THAT (ASSYST)

Indicator of term of approach of routine maintenance (THAT)

The indicator of term of approach planned informs THAT on the OPTIMUM term of carrying out maintenance and its indication are not connected with the level of motive oil in any way.

If the rechargeable battery is disconnected, time of the parking of the car does not join in counting of term of approach planned, - for preservation of frequency of holding procedures of routine maintenance this period of time has to be considered.


Information on terms of approach planned THAT is output in the field of indications of the odometer of the speedometer of the digital display which is built in in the dial


1 — the Button of switching of the display in the odometer mode


Approximately in one month before term next THAT at the included ignition in the field of indications of the odometer of the digital display of a speedometer is removed value of size of the remained run, or time (in days) until performing procedures of the next service (see an illustration 2.2).

At the same time, the indication of 1000 means that planned THAT should be passed through 1000 km, and 10 - in 10 days. The output format of data is defined by car service conditions.

Switching of the display in the mode of the odometer happens automatically in 10 seconds, or by pressing the button (1).

At delay of term of carrying out THAT the indicator begins to work in the flashing mode, besides, ahead of digital data the minus sign is highlighted.

Also the possibility of a conclusion of service indications manually is provided for what it is necessary to activate previously a combination of devices, and then twice within 1 second to press the button (1). Switching of the display in the odometer mode happens automatically in 10 seconds as before, or by pressing the same button.

Indication of term of approach planned THAT is automatically switched off through 10 with or dies away when pressing the button (1).
Dumping of the indicator is made at Mercedes-Benz car repair shop where planned THAT was carried out.

In case of need dumping of the indicator can be made by own forces of the owner of the car: Turn a key in the ignition lock in situation 2 and at once twice within 1 second press the button (1).

The last indication of term of approach planned THAT is displayed in the counter of the general passable way.

Turn a key in the lock of a shaft of a steering wheel in situation 0 approximately within 10 seconds.

Press the button (1) and hold pressed. Turn a key in the lock of a shaft of a steering wheel in situation 2. Continue to hold the button (1) pressed, on the screen of the display will remain highlighted indication of old term of the previous service, then, approximately in 10 seconds after a sound signal term next THAT will be removed, - release the button (1).

At casual dumping of indication of term of approach planned THAT function can be again activated on HUNDRED Mercedes-Benzs.

The size of the run remaining before performance next THAT is defined by a manner of driving and lies ranging from 15000 to 22500 km (365 ÷ 730 days). An economic manner of driving at average turns of the engine and refusal of trips on short distances promote its increase.

The schedule of routine maintenance of the car is presented in the Section Schedule of Routine Maintenance.