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
   Specifications
   + access, protection
   - Elements of systems of reliability
      Rules of use of means of passive reliability of the driver and passengers
      Regulation of seats
      Regulation of provision of a steering wheel
      System of additional reliability (SRS)
      Danger of poisoning of Monooxid of carbon (C)
   + car equipment, arrangement of devices and administrative bodies
   + comfort
   + pictures of the enterprise and auxiliary systems
+ Routine maintenance
+ motor
+ cooling systems, heating
+ systems of power supply and edition
+ electric equipment of the motor
+ gear shifting boxes
+ Awtomatitscheckaja transmission
+ connection
+ brake system
+ Aufhängung and management
+ body
+ electric onboard equipment


System of additional reliability (SRS)

In number of devices and components, system of additional reliability (SRS) form arrive:

   a) 2 halls (frontalnyje) of an inflatable safety cushion - a basic equipment. The module of a motive inflatable safety cushion in the plug of a steering wheel was interrupted. An inflatable safety cushion of the forward passenger in a special cave in the right part of the panel of devices of the car interrupted. Places of both pillows are specified by the preventive inscriptions "INFLATABLE SAFETY CUSHION of SRS";
   b) 2 parties inflatable safety cushions of front seats - a basic equipment. Modules of side safety cushions are constructed in outer sides of backs of seats;
   Pillows (curtain) of reliability (additional complete set) established along fields of the potolotschnoj page of the panel and guaranteeing additional protection of hits of the driver and all passengers at side blows and pereworatschiwanii of the car;
   d) sensors of the directed overloads which react at strong frontal / side shock;
   e) Electronic system of self-diagnostics which guarantees continuous check of sensors of overloads, the control unit, gasogeneratorow of pillows and the electric device of the connecting pipeline of the corresponding chains at the made ignition;
   f) establishment of automatic necessary tension of seat belts of front seats - a basic equipment;
   g) a control lamp of refusals of SRS which are constructed in the panel of devices;
   h) an independent spare source of power supply which is intended for Dublieren of system of supply of the main river in case of its exit except the enterprise at collision of the car.

In affiliated record of the device of the car it is constructed to a special control lamp of SRS which is intended for the warning of the driver of open system of self-diagnostics refusals in system of additional reliability.

Depending on a car complete set wear of a control lamp testifies to possible defects of Frontalnych/side modules a safety cushion or devices of automatic necessary tension of seat belts.

Principle of functioning of frontalnych of inflatable safety cushions

You do not send children of younger age on a front seat to people of an inflatable safety cushion to the equipped cars at all! It is said behaves also to the device on a front seat of a special children's seat.

At weak collisions and Umstürzung of the frontalnyje car inflatable safety cushions have to go to react is not present.



Frontalnych modules of inflatable safety cushions are constructed in stupitschnuju a part of a steering wheel and in the panel the right part of the panel of devices, it directly about the main box of baggage.


Sensors of the directed overloads react to excess of some Höchstbedeutung which can arise at strong frontal collision. After a signal of sensors the gasogeneratory control unit of inflatable safety cushions accepts, its real stuffing causing.

During collision the seat belt of removal holds the lower part of the case sitting. Forward inflatable safety cushions help to prevent trawmirowanije of the driver and the forward passenger owing to blow of her head and a thorax about the steering wheel / panel of devices.


As signals affect wear of both inflatable safety cushions about the same sensors, both pillows at the same time react. However, the probability of Initiierung only one of pillows is not excluded. It becomes possible if the size of the directed overloads arising at collision was on the edge of the volume of sensitivity of sensors. In this case seat belts guarantee rather sure protection of the driver and forward passenger while the effect of wear of an inflatable safety cushion becomes minimum.

At once their gas is produced after wear and execution of pillows of functions that allows to the driver to preserve presentation and is free, to manipulate all administrative bodies by car.

The full term of process of date of transmission of a signal by means of sensors of overloads up to the edition of gas from pillows receives participations of second. Wear of pillows occurs so quickly that a human ear simply not capacious gasogeneratorow cotton at restoration of pillows.

After transport accident at which there was a wear of inflatable safety cushions the volume of a car interior looks a few sadymlennym. Actually it is Gloomy tonkodispersnogo of powder, usually peressypajutsja covers of pillows in the put state. People with a disease of respiratory bodies may contain a certain unpleasant feeling from gaseous in air to the existing products have which are chosen pillow gasogeneratorami.

The principle of functioning of side safety cushions and inflatable safety cushion for the head

Modules of side safety cushions are constructed in the panel of main entrances of the car.


Places of both side pillows are specified by the inscriptions "INFLATABLE SAFETY CUSHION of SIDE" usually. Gasogeneratory of pillows are located after fields of the potolotschnoj page of the panel.

At strong side blow sensors of the directed overloads fix excess of the arising loadings of some value of thresholds and give information signal on the control unit which is made by the command for iznosa of gasogeneratora of the corresponding side safety cushion.


At the same time, if the blow from a seat of people was pleasant, the pillow of the parties of people will react even in the absence of the passenger on a front seat.

For supply of the greatest efficiency of protection which is guaranteed by inflatable safety cushions the driver and the passenger who sits on a front seat have to sit directly and to be the fastened seat belts.

Order of functioning of a control lamp of refusals of SRS

At the appendix of ignition (ignition keys will turn in situation 2) the control lamp ignites for a short time, loses force then at once that confirms about serviceability of functioning of all knots of system.

At any wear of a control lamp in at any time owner of the car Mercedes Benz is necessary to ask for the help experts of service station of the enterprise as soon as possible. The following behaves to number of such situations:

   a) if the control lamp at change of the ignition key is not enlisted in situation 2;
   designate b) puts a control lamp after execution of start of the motor to burn;
   c) if the control lamp is activated and burns in constantly or probleskowom to the modes during the movement of the car.

In the presence of above-mentioned signs of defect the additional system of reliability at failure of the car can refuse.

Negligence with signals of a control lamp of SRS can lead to the most serious consequences at refusal of inflatable safety cushions during transport accident!

Seat belts with automatically completely needs of natjaschiteljami


Natjaschiteli are put at strong frontalnych of an overload in the enterprise which arise at frontal collision, and guarantee the real inquiry of slabiny of belts when result bonds of the last cover a body sitting densely, in significantly step raising a step of protection of the driver and forward passenger.

Seat belt with automatically completely needs of natjaschitelem

And — Natjaschitel

Natjaschitel is constructed () in installation of the coming-back remnjaporjadok mechanism of use of such seat belts probably of an order of use of usual belts, to the equipped coming-back inertness devices. The mechanism of wear natjaschitelja for the user it is absolutely transparent does not demand from the last additional skills and there is no knowledge.

Activization of natjaschitelej happens only at much frontalnych of an overload. Wear of modules is followed by loud cotton and few dymoobrasowanijem.

To itself taking at wear of natjaschitelej smoke is sure for health of the person, however, can cause charm of mucous membranes at direct inhalation.

It is necessary to notice it is necessary that refusals of wear of natjaschitelej at frontal collision do not clear up with defect of system, and mostly that the overloads arising at blow do not reach value of thresholds at which activization of modules is made.

Also as in case of inflatable safety cushions, modules completely needs of natjaschitelej are calculated on unique wear and after it are subject to compensation in duty with belts, - you address on original service stations of the enterprise Mercedes Benz. There take themselves all claims concerning refusals of the SRS components before.

Maintenance of the SRS elements

Really inflatable safety cushion and institutions of automatic necessary tension of seat belts, does not need regular checks and maintenance. However, the owner of the transport equipped in the corresponding way because of following the moments has to have:

   a) After wear of inflatable safety cushions they are subject to obligatory compensation together with the system control unit. Do not try to reduce the working pillows independently. These operations have to be filled only under conditions of a workshop of car service;
   b) If it itself designates wear of a control lamp of SRS on existence of refusal in system, is urgently necessary to turn Mercedes Benz on the following service station of the enterprise where full diagnostics and necessary repair of system recovery will be made. Otherwise inflatable safety cushions at transport accident cannot react not to fill protective function;
   c) Only specially diplomaed personnel are allowed to works with knots of additional system of reliability. It is forbidden to reduce independently from the car of an inflatable safety cushion and completely need of natjaschiteli of seat belts. In case of refusal SRS or after necessary wear of inflatable safety cushions and natjaschitelej of seat belts on service station of the enterprise Mercedes Benz needs to address for carrying out repair or compensation of knots of system;
   d) You do not open modules you do not change the electric leading device of systems of inflatable safety cushions and devices of automatic necessary tension of seat belts, - such intervention can result in involuntary wear of pillows and natjaschitelej and to be the cause of trawmirowanija of the performer or the people who are nearby;
   e) you do not make compensation of front seats without receiving preliminary consultation in service station of the enterprise Mercedes Benz. Chaotic or incorrect execution of compensation or removal of caps can lead to refusal of wear of side safety cushions in case of transport accident.

By transfer of the car it is necessary to inform the last is necessary other person surely about all certain SRS elements with the indication of the corresponding points of the instruction on rules of use of the car.

On all it is equipped SRS models on locations of active elements systems the special notifying signs are installed.